Sadanori Okamura

Details der Publikationsliste

Zeitraum

1997 - 2009

Anzahl

105

Co-Autoren

High star formation activity in the central region of a distant cluster at z=1.46 (2009)

Hayashi, Masao, Kodama, Tadayuki, Koyama, Yusei, Tanaka, Ichi, Shimasaku, Kazuhiro, Okamura, Sadanori

We present an unbiased deep [OII] emission survey of a cluster XMMXCS J2215.9-1738 at z=1.46, the most distant cluster to date with a detection of extended X-ray emission. With wide-field optical and...

Stellar Populations of Lyman Alpha Emitters at z = 3 - 4 Based on Deep Large Area Surveys in the Subaru-SXDS/UKIDSS-UDS Field (2009)

Ono, Yoshiaki, Ouchi, Masami, Shimasaku, Kazuhiro, Akiyama, Masayuki, Dunlop, James, Farrah, Duncan, ...

We investigate the stellar populations of Lyman alpha emitters (LAEs) at z=3.1 and 3.7 in 0.65 deg^2 of the Subaru/XMM-Newton Deep Field, based on rest-frame UV-to-optical photometry obtained from...

Intracluster Light in the Virgo Cluster: Large Scale Distribution (2009)

Castro-Rodriguez, Nieves, Arnaboldi, Magda, Aguerri, J. Alfonso L., Gerhard, Ortwin, Okamura, Sadanori, Yasuda, Naoki, ...

The intracluster light (ICL) is a faint diffuse stellar component in clusters made of stars not bound to individual galaxies. We have carried out a large scale study of this component in the nearby...

Large Area Survey for z=7 Galaxies in SDF and GOODS-N: Implications for Galaxy Formation and Cosmic Reionization (2009)

Ouchi, Masami, Mobasher, Bahram, Shimasaku, Kazuhiro, Ferguson, Henry C., Fall, S. Michael, Ono, Yoshiaki, ...

We present results of our large-area survey for z'-band dropout galaxies at z=7 in a 1568 arcmin^2 sky area covering the SDF and GOODS-N fields. Combining our ultra-deep Subaru/Suprime-Cam z'- and...

The Seventh Data Release of the Sloan Digital Sky Survey (2009)

Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Allende Prieto, Carlos, An, Deokkeun, ...

This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDSS-II. It includes...

Science with UT's Dichroic-Mirror Camera (DMC), 15-band simultaneous imager (2008)

Kuncarayakti, Hanindyo, Doi, Mamoru, Malasan, Hakim L., Hayano, Junji, Utsunomiya, Hiroyuki, Ihara, Yutaka, ...

We introduce the Dichroic-Mirror Camera (DMC), an instrument developed at the University of Tokyo which is capable of performing simultaneous imaging in fifteen bands. The main feature of the DMC is...

Proper motions with Subaru I. Methods and a first sample in the Subaru Deep Field (2008)

Richmond, Michael W., Morokuma, Tomoki, Doi, Mamoru, Komiyama, Yutaka, Yasuda, Naoki, Okamura, Sadanori, ...

We search for stars with proper motions in a set of twenty deep Subaru images, covering about 0.28 square degrees to a depth of i ~ 25, taken over a span of six years. In this paper, we describe in...

Mapping dusty star formation in and around a cluster at z=0.81 by wide-field imaging with AKARI (2008)

Koyama, Yusei, Kodama, Tadayuki, Shimasaku, Kazuhiro, Okamura, Sadanori, Tanaka, Masayuki, Lee, Hyung Mok, ...

We present environmental dependence of dusty star forming activity in and around the cluster RXJ1716.4+6708 at z=0.81 based on wide-field and multi-wavelength observations with Suprime-Cam on the...

Discovery of a Giant Lya Emitter Near the Reionization Epoch (2008)

Ouchi, Masami, Ono, Yoshiaki, Egami, Eiichi, Saito, Tomoki, Oguri, Masamune, McCarthy, Patrick J., ...

We report the discovery of a giant Lya emitter (LAE) with a Spitzer/IRAC counterpart near the reionization epoch at z=6.595. The giant LAE is found from the extensive 1 deg^2 Subaru narrow-band...

The sixth data release of the Sloan Digital Sky Survey (2008)

Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Prieto, Carlos Allende, Anderson, Kurt S. J., Anderson, Scott F., ...

This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...

Probing the History of Cluster Assembly by Intracluster Planetary Nebulae (2008)

Okamura, Sadanori

We describe the results and the current status of our program to search for intracluster planetary nebulae (ICPNe) in the Virgo and the Coma clusters of galaxies. For the Virgo cluster, ICPNe...

The Subaru/XMM-Newton Deep Survey (SXDS) -VII. Clustering Segregation with Ultraviolet and Optical Luminosities of Lyman-Break Galaxies at z~3 (2008)

Yoshida, Makiko, Shimasaku, Kazuhiro, Ouchi, Masami, Sekiguchi, Kazuhiro, Furusawa, Hisanori, Okamura, Sadanori

We investigate clustering properties of Lyman-break galaxies (LBGs) at z~3 based on deep multi-waveband imaging data from optical to near-infrared wavelengths in the Subaru/XMM-Newton Deep Field. The...

The HST/ACS Coma Cluster Survey: I - Survey Objectives and Design (2008)

Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry C., Puzia, Thomas H., Aguerri, Alfonso L., ...

We describe the HST ACS Coma cluster Treasury survey, a deep two-passband imaging survey of one of the nearest rich clusters of galaxies, the Coma cluster (Abell 1656). The survey was designed to...

The sixth data release of the Sloan Digital Sky Survey (2008)

Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Prieto, Carlos Alende, Anderson, Kurt S. J., Anderson, Scott F., ...

This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...

The sixth data release of the Sloan Digital Sky Survey (2008)

Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Prieto, Carlos Alende, Anderson, Kurt S. J., Anderson, Scott F., ...

This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...

The sixth data release of the Sloan Digital Sky Survey (2008)

Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Prieto, Carlos Alende, Anderson, Kurt S. J., Anderson, Scott F., ...

This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...

The Hubble Space Telescope Advanced Camera for Surveys Coma Cluster survey I: survey objectives and design (2008)

Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry C., Puzia, Thomas H., Aguerri, Alfonso L., ...

We describe the HST ACS Coma Cluster Treasury survey, a deep two-passband imaging survey of one of the nearest rich clusters of galaxies, the Coma Cluster (Abell 1656). The survey was designed to...

The sixth data release of the Sloan Digital Sky Survey (2008)

Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Prieto, Carlos Alende, Anderson, Kurt S. J., Anderson, Scott F., ...

This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...

The Hubble Space Telescope Advanced Camera for Surveys Coma Cluster survey I: survey objectives and design (2008)

Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry C., Puzia, Thomas H., Aguerri, Alfonso L., ...

We describe the HST ACS Coma Cluster Treasury survey, a deep two-passband imaging survey of one of the nearest rich clusters of galaxies, the Coma Cluster (Abell 1656). The survey was designed to...

Dependence of the Build-up of the Colour-Magnitude Relation on Cluster Richness at z ~ 0.8 (2007)

Koyama, Yusei, Kodama, Tadayuki, Tanaka, Masayuki, Shimasaku, Kazuhiro, Okamura, Sadanori

We present environmental dependence of the build-up of the colour-magnitude relation (CMR) at z ~ 0.8. It is well established that massive early-type galaxies exhibit a tight CMR in clusters up to at...

The Subaru/XMM-Newton Deep Survey (SXDS). IV. Evolution of Lya Emitters from z=3.1 to 5.7 in the 1 deg^2 Field: Luminosity Functions and AGN (2007)

Ouchi, Masami, Shimasaku, Kazuhiro, Akiyama, Masayuki, Simpson, Chris, Saito, Tomoki, Ueda, Yoshihiro, ...

We present luminosity functions (LFs) and various properties of Lya emitters (LAEs) at z=3.1, 3.7, and 5.7, in a 1 deg^2 sky of the Subaru/XMM-Newton Deep Survey (SXDS) Field. We obtain a photometric...

Wide-field Survey around Local Group Dwarf Spheroidal Galaxy Leo II: Spatial Distribution of Stellar Content (2007)

Komiyama, Yutaka, Doi, Mamoru, Furusawa, Hisanori, Hamabe, Masaru, Imi, Katsumi, Kimura, Masahiko, ...

We carried out a wide-field V, I imaging survey of the Local Group dwarf spheroidal galaxy Leo II using the Subaru Prime Focus Camera on the 8.2-m Subaru Telescope. The survey covered an area of...

Deep Spectroscopy of Systematically Surveyed Extended Lyman-alpha Sources at z~3-5 (2007)

Saito, Tomoki, Shimasaku, Kazuhiro, Okamura, Sadanori, Ouchi, Masami, Akiyama, Masayuki, Yoshida, Michitoshi, ...

Spatially extended Ly-alpha sources that are faint and/or compact in coninuum are candidates for extremely young (~< 10^7 yrs) galaxies at high redshifts. We present medium-resolution (R~2000)...

A Catalogue of Morphologically Classified Galaxies from the Sloan Digital Sky Survey: North Equatorial Region (2007)

Fukugita, Masataka, Nakamura, Osamu, Okamura, Sadanori, Yasuda, Naoki, Barentine, John C., Brinkmann, Jon, ...

We present a catalogue of morphologically classified bright galaxies in the north equatorial stripe (230 deg$^2$) derived from the Third Data Release of the Sloan Digital Sky Survey (SDSS)....

The Kinematics of Intracluster Planetary Nebulae and the On-Going Subcluster Merger in the Coma Cluster Core (2007)

Gerhard, Ortwin, Arnaboldi, Magda, Freeman, Kenneth C., Okamura, Sadanori, Kashikawa, Nobunari, Yasuda, Naoki

The Coma cluster is the richest and most compact of the nearby clusters, yet there is growing evidence that its formation is still on-going. With a new multi-slit imaging spectroscopy technique...

Kinematic Substructures in the Coma Cluster Core as traced by Intracluster Planetary Nebulae (2007)

Arnaboldi, Magda, Gerhard, Ortwin, Freeman, Kenneth C., Kashikawa, Nobunari, Okamura, Sadanori, Yasuda, Naoki

The Coma cluster is the richest and most compact of the nearby clusters, yet there is growing evidence that its formation is still on-going. A sensitive probe of this evolution is the dynamics of...

The HI content of star-forming galaxies at z = 0.24 (2007)

Lah, Philip, Chengalur, Jayaram N., Briggs, Frank H., Colless, Matthew, De Propris, Roberto, Pracy, Michael B., ...

We use observations from the Giant Metrewave Radio Telescope (GMRT) to measure the atomic hydrogen gas content of star-forming galaxies at z = 0.24 (i.e. a look-backtime of ~3 Gyr). The sample of...

The Remarkable 60 x 2 kpc Optical Filament Associated with a Poststarburst Galaxy in Coma Cluster (2007)

Yagi, Masafumi, Komiyama, Yutaka, Yoshida, Michitoshi, Furusawa, Hisanori, Kashikawa, Nobunari, Koyama, Yusei, ...

In the deep narrow band image of the Coma Cluster taken with Suprime-Cam of the Subaru telescope, we found an extremely long and narrow (~ 60 kpc x 2 kpc) Halpha emitting region associated with a...

The fifth data release of the Sloan Digital Sky Survey (2007)

Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...

This paper describes the Fifth Data Release (DR5) of the Sloan Digital Sky Survey (SDSS). DR5 includes all survey quality data taken through 2005 June and represents the completion of the SDSS-I...

The Fifth Data Release of the Sloan Digital Sky Survey (2007)

Adelman-McCarthy, Jennifer K., Agueeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...

This paper describes the Fifth Data Release (DR5) of the Sloan Digital Sky Survey (SDSS). DR5 includes all survey quality data taken through 2005 June and represents the completion of the SDSS-I...

The Fifth Data Release of the Sloan Digital Sky Survey (2007)

Adelman-McCarthy, Jennifer K., Agueeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...

This paper describes the Fifth Data Release (DR5) of the Sloan Digital Sky Survey (SDSS). DR5 includes all survey quality data taken through 2005 June and represents the completion of the SDSS-I...

The fifth data release of the Sloan Digital Sky Survey (2007)

Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...

This paper describes the Fifth Data Release (DR5) of the Sloan Digital Sky Survey (SDSS). DR5 includes all survey quality data taken through 2005 June and represents the completion of the SDSS-I...

Luminosity Functions of Lyman-Break Galaxies at z~4 and 5 in the Subaru Deep Field (2006)

Yoshida, Makiko, Shimasaku, Kazuhiro, Kashikawa, Nobunari, Ouchi, Masami, Okamura, Sadanori, Team, The SDF Project

We investigate the luminosity functions of Lyman-break galaxies (LBG) at z~4 and 5 based on the optical imaging data obtained in the Subaru Deep Field Project. Three samples of LBGs in a contiguous...

Deep Extragalactic Surveys around the Ecliptic Poles with AKARI (ASTRO-F) (2006)

Matsuhara, Hideo, Wada, Takehiko, Matsuura, Shuji, Nakagawa, Takao, Kawada, Mitsunobu, Oyama, Youichi, ...

AKARI (formerly ASTRO-F) is an infrared space telescope designed for an all-sky survey at 10-180 (mu)m, and deep pointed surveys of selected areas at 2-180 (mu)m. The deep pointed surveys with AKARI...

Deep Extragalactic Surveys around the Ecliptic Poles with AKARI (ASTRO-F) (2006)

Matsuhara, Hideo, Wada, Takehiko, Matsuura, Shuji, Nakagawa, Takao, Kawada, Mitsunobu, Oyama, Youichi, ...

AKARI (formerly ASTRO-F) is an infrared space telescope designed for an all-sky survey at 10-180 (mu)m, and deep pointed surveys of selected areas at 2-180 (mu)m. The deep pointed surveys with AKARI...

Systematic Survey of Extended Lyman-alpha Sources over z~3-5 (2006)

Saito, Tomoki, Shimasaku, Kazuhiro, Okamura, Sadanori, Ouchi, Masami, Akiyama, Masayuki, Yoshida, Michitoshi

Spatially extended Ly-alpha sources which are faint and compact in coninuum are candidates for extremely young galaxies (age of ~

Deep Extragalactic Surveys around the Ecliptic Poles with AKARI (ASTRO-F) (2006)

Matsuhara, Hideo, Wada, Takehiko, Matsuura, Shuji, Nakagawa, Takao, Kawada, Mitsunobu, Oyama, Youichi, ...

AKARI (formerly ASTRO-F) is an infrared space telescope designed for an all-sky survey at 10-180 (mu)m, and deep pointed surveys of selected areas at 2-180 (mu)m. The deep pointed surveys with AKARI...

Deep Extragalactic Surveys around the Ecliptic Poles with AKARI (ASTRO-F) (2006)

Matsuhara, Hideo, Wada, Takehiko, Matsuura, Shuji, Nakagawa, Takao, Kawada, Mitsunobu, Oyama, Youichi, ...

AKARI (formerly ASTRO-F) is an infrared space telescope designed for an all-sky survey at 10-180 (mu)m, and deep pointed surveys of selected areas at 2-180 (mu)m. The deep pointed surveys with AKARI...

The Fourth Data Release of the Sloan Digital Sky Survey (2006)

Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...

This paper describes the Fourth Data Release of the Sloan Digital Sky Survey (SDSS), including all survey-quality data taken through 2004 June. The data release includes five-band photometric data...

The fourth data release of the Sloan Digital Sky Survey (2006)

Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...

This paper describes the Fourth Data Release of the Sloan Digital Sky Survey (SDSS), including all survey-quality data taken through 2004 June. The data release includes five-band photometric data...

The fourth data release of the Sloan Digital Sky Survey (2006)

Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...

This paper describes the Fourth Data Release of the Sloan Digital Sky Survey (SDSS), including all survey-quality data taken through 2004 June. The data release includes five-band photometric data...

The fourth data release of the Sloan Digital Sky Survey (2006)

Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...

This paper describes the Fourth Data Release of the Sloan Digital Sky Survey (SDSS), including all survey-quality data taken through 2004 June. The data release includes five-band photometric data...

Morphological Classification of Galaxies using Photometric Parameters: the Concentration index versus the Coarseness parameter (2005)

Yamauchi, Chisato, Ichikawa, Shin-ichi, Doi, Mamoru, Yasuda, Naoki, Yagi, Masafumi, Fukugita, Masataka, ...

We devise improved photometric parameters for the morphological classification of galaxies using a bright sample from the First Data Release of the Sloan Digital Sky Survey. In addition to using an...

The Build-up of the Colour-Magnitude Relation as a Function of Environment (2005)

Tanaka, Masayuki, Kodama, Tadayuki, Arimoto, Nobuo, Okamura, Sadanori, Umetsu, Keiichi, Shimasaku, Kazuhiro, ...

We discuss the environmental dependence of galaxy evolution based on deep panoramic imaging of two distant clusters taken with Suprime-Cam as part of the PISCES project. By combining with the SDSS...

The line-of-sight velocity distributions of intracluster planetary nebulae in the Virgo cluster core (2005)

Arnaboldi, Magda, Gerhard, Ortwin, Aguerri, J. Alfonso L., Freeman, Kenneth C., Napolitano, Nicola R., Okamura, Sadanori, ...

Radial velocities of 40 intracluster planetary nebulae (ICPNe) in the Virgo cluster were obtained with the new multi-fiber FLAMES spectrograph on UT2 at VLT. For the first time, the lambda 4959 AA...

Detection of Intracluster Planetary Nebulae in the Coma Cluster (2005)

Gerhard, Ortwin, Arnaboldi, Magda, Freeman, Kenneth C., Kashikawa, Nobunari, Okamura, Sadanori, Yasuda, Naoki

[OIII] lambda 5007AA emission lines of 16 intracluster planetary nebulae candidates in the Coma cluster were detected with a Multi-Slit Imaging Spectroscopy (MSIS) technique using FOCAS on the Subaru...

The Third Data Release of the Sloan Digital Sky Survey (2005)

Abazajian, Kevork, Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...

This paper describes the Third Data Release of the Sloan Digital Sky Survey (SDSS). This release, containing data taken up through 2003 June, includes imaging data in five bands over 5282 deg2,...

The third data release of the Sloan Digital Sky Survey (2005)

Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...

This paper describes the Third Data Release of the Sloan Digital Sky Survey (SDSS). This release, containing data taken up through 2003 June, includes imaging data in five bands over 5282 deg²,...

The third data release of the Sloan Digital Sky Survey (2005)

Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...

This paper describes the Third Data Release of the Sloan Digital Sky Survey (SDSS). This release, containing data taken up through 2003 June, includes imaging data in five bands over 5282 deg²,...

The third data release of the Sloan Digital Sky Survey (2005)

Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...

This paper describes the Third Data Release of the Sloan Digital Sky Survey (SDSS). This release, containing data taken up through 2003 June, includes imaging data in five bands over 5282 deg²,...

Discovery of a Large Scale Clumpy Structure around the Lynx Supercluster at z~1.27 (2004)

Nakata, Fumiaki, Kodama, Tadayuki, Shimasaku, Kazuhiro, Doi, Mamoru, Furusawa, Hisanori, Hamabe, Masaru, ...

We report the discovery of a probable large scale structure composed of many galaxy clumps around the known twin clusters at z=1.26 and z=1.27 in the Lynx region. Our analysis is based on deep,...

The Environmental Dependence of Galaxy Properties in the Local Universe: Dependence on Luminosity, Local Density, and System Richness (2004)

Tanaka, Masayuki, Goto, Tomotsugu, Okamura, Sadanori, Shimasaku, Kazuhiro, Brinkman, Jon

We investigate the environmental dependence of star formation and the morphology of galaxies in the local universe based on a volume-limited sample (0.030

Distributions of Galaxy Spectral Types in the Sloan Digital Sky Survey (2004)

Yip, Ching-Wa, Connolly, Andrew, Szalay, Alex, Budavari, Tamas, SubbaRao, Mark, Frieman, Joshua, ...

We perform an objective classification of 170,000 galaxy spectra in the Sloan Digital Sky Survey (SDSS) using the Karhunen-Lo\`eve (KL) transform. With about one-sixth of the total set of galaxy...

The second data release of the Sloan Digital Sky Survey (2004)

Abazajian, Kevork, Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt, Anderson, Scott F., ...

The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its Second Data Release. This data release consists of 3324 deg2 of five-band (ugriz) imaging data with photometry for...

The second data release of the Sloan Digital Sky Survey (2004)

Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...

The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its Second Data Release. This data release consists of 3324 deg(2) of five-band (ugriz) imaging data with photometry for...

The second data release of the Sloan Digital Sky Survey (2004)

Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...

The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its Second Data Release. This data release consists of 3324 deg(2) of five-band (ugriz) imaging data with photometry for...

Evolution of the Colour--Radius Relation and the Morphology--Radius Relation in the SDSS Galaxy Clusters (2003)

Goto, Tomotsugu, Yagi, Masafumi, Tanaka, Masayuki, Okamura, Sadanori

We have investigated the redshift evolution of the colour--cluster-centric-radius relation and the morphology--cluster-centric-radius relation in three redshift bins, $0.02\leq z\leq 0.14$, $0.14<...

The Morphology-Density Relation in the Sloan Digital Sky Survey (2003)

Goto, Tomotsugu, Yamauchi, Chisato, Fujita, Yutaka, Okamura, Sadanori, Sekiguchi, Maki, Smail, Ian, ...

We have studied the morphology-density relation and morphology--cluster-centric-radius relation using a volume limited sample (0.05$

Two formation paths for cluster dwarf galaxies? (2003)

Poggianti, Bianca M., Kashikawa, Nobunari, Bridges, Terry, Mobasher, Bahram, Komiyama, Yutaka, Carter, Dave, ...

A surprising result of our recent spectroscopic survey of galaxies in the Coma cluster has been the discovery of a possible bimodal distribution in the metallicities of faint galaxies at $M_B>-17$....

The Halpha Luminosity Function of the Galaxy Cluster Abell 521 at z = 0.25 (2003)

Umeda, Kazuyoshi, Yagi, Masafumi, Yamada, Sanae F., Taniguchi, Yoshiaki, Shioya, Yasuhiro, Murayama, Takashi, ...

We present an optical multicolor-imaging study of the galaxy cluster Abell 521 at $z = 0.25$, using Suprime-Cam on the Subaru Telescope, covering an area of $32 \times 20$ arcmin$^2$ ($9.4 \times 5.8...

Galaxy Types in the Sloan Digital Sky Survey Using Supervised Artificial Neural Networks (2003)

Ball, Nicholas M, Loveday, Jon, Fukugita, Masataka, Nakamura, Osamu, Okamura, Sadanori, Brinkmann, Jon, ...

Supervised artificial neural networks are used to predict useful properties of galaxies in the Sloan Digital Sky Survey, in this instance morphological classifications, spectral types and redshifts....

The Morphological Butcher-Oemler effect in the SDSS Cut&Enhance Galaxy Cluster Catalog (2003)

Goto, Tomotsugu, Okamura, Sadanori, Yagi, Masafumi, Sheth, Ravi K., Bahcall, Neta A., Zabel, Shane A., ...

We investigate the evolution of the fractions of late type cluster galaxies as a function of redshift, using one of the largest, most uniform cluster samples available. The sample consists of 514...

The Environment of Passive Spiral Galaxies in the SDSS (2003)

Goto, Tomotsugu, Okamura, Sadanori, Sekiguchi, Maki, Bernardi, Mariangela, Brinkmann, Jon., Gomez, Percy L., ...

In previous work on galaxy clusters, several authors reported a discovery of an unusual population of galaxies, which have spiral morphologies, but do not show any star formation activity. These...

Hdelta-Selected Galaxies in the Sloan Digital Sky Survey I: The Catalog (2003)

Goto, Tomotsugu, Nichol, Robert C., Miller, Christopher J., Bernardi, Mariangela, Hopkins, Andrew, Tremonti, Christy, ...

[Abridged] We present here a new and homogeneous sample of 3340 galaxies selected from the Sloan Digital Sky Survey (SDSS) based solely on the observed strength of their Hdelta absorption line. These...

The first data release of the Sloan Digital Sky Survey (2003)

Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Scott F., Annis, James, ...

The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its First Data Release. This consists of 2099 deg2 of five-band (u, g, r, i, z) imaging data, 186,240 spectra of...

The first data release of the Sloan Digital Sky Survey (2003)

Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Scott F., Annis, James, ...

The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its First Data Release. This consists of 2099 deg2 of five-band (u, g, r, i, z) imaging data, 186,240 spectra of...

SDSSp J104433.04$-$012502.2 at $z=5.74$ is Gravitationally Magnified by an Intervening Galaxy (2002)

Shioya, Yasuhiro, Taniguchi, Yoshiaki, Murayama, Takashi, Ajki, Masaru, Nagao, Tohru, Fujita, Shinobu S., ...

During the course of our optical deep survey program on L$\alpha$ emitters at $z \approx 5.7$ in the sky area surrounding the quasar SDSSp J104433.04$-$012502.2 at $z=5.74$, we found that a faint...

Isolated Star Formation: A Compact HII Region in the Virgo Cluster (2002)

Gerhard, Ortwin, Arnaboldi, Magda, Freeman, Kenneth C., Okamura, Sadanori

We report on the discovery of an isolated, compact HII region in the Virgo cluster. The object is located in the diffuse outer halo of NGC 4388, or could possibly be in intracluster space. Star...

Subaru Prime Focus Camera -- Suprime-Cam -- (2002)

Miyazaki, Satoshi, Komiyama, Yutaka, Sekiguchi, Maki, Okamura, Sadanori, Doi, Mamoru, Furusawa, Hisanori, ...

We have built an 80-mega pixels (10240 X 8192) mosaic CCD camera, called Suprime-Cam, for the wide-field prime focus of the 8.2 m Subaru telescope. Suprime-Cam covers a field of view 34' X 27', a...

The Galaxy Luminosity Function and Luminosity Density at Redshift z=0.1 (2002)

Blanton, Michael R., Hogg, David W., Brinkmann, J., Connolly, Andrew J., Csabai, Istvan, Bahcall, Neta A., ...

Using a catalog of 147,986 galaxy redshifts and fluxes from the Sloan Digital Sky Survey (SDSS) we measure the galaxy luminosity density at z=0.1 in five optical bandpasses corresponding to the SDSS...

A Search for Lyman alpha Emitters at Redshift 3.7 (2002)

Fujita, Shinobu S., Ajiki, Masaru, Shioya, Yasuhiro, Nagao, Tohru, Murayama, Takashi, Taniguchi, Yoshiaki, ...

We present the results of a survey for emission-line objects based on optical intermediate-band ($\lambda_{\rm c}$ = 5736 \AA ~ and $\Delta\lambda$ = 280 \AA) and broad-band ($B$, $V$, $R$, and...

Subaru Deep Survey III. Evolution of Rest-Frame Luminosity Functions Based on the Photometric Redshifts for A K'-band Selected Galaxy Sample (2002)

Kashikawa, Nobunari, Takata, Tadafumi, Ohyama, Youichi, Yoshida, Michitoshi, Maihara, Toshinori, Iwamuro, Fumihide, ...

We have constructed a very deep K'-selected multicolor BVRIz'JK' sample of 439 field galaxies. Photometric redshifts for sample galaxies were estimated. The overall redshift distribution N(z) for the...

ERO R1 in CL0939+4713 field - Evidence for an S0-like galaxy at z \sim 1.5 (2002)

Iye, Masanori, Shimasaku, Kazuhiro, Miyazaki, Satoshi, Imanishi, Masatoshi, Kashikawa, Nobunari, Kodama, Tadayuki, ...

We present further observations of the extremely red object ERO J094258+4659.2, identified by \citet{iye00} as ERO R1 in their deep images of the cluster A851. We estimate its redshift independently...

Composite Luminosity Functions Based on the Sloan Digital Sky Survey "Cut & Enhance" Galaxy Cluster Catalog (2002)

Goto, Tomotsugu, Okamura, Sadanori, Mckay, Timothy A., Annis, James, Bahcall, Neta A., Bernardi, Mariangela, ...

We present here results on the composite luminosity functions of galaxies in the clusters of galaxies selected from the SDSS Cut and Enhance cluster catalog (CE; Goto et al. 2001). We construct the...

Sloan Digital Sky Survey: Early data release (2002)

Stoughton, Chirs, Lupton, Rpbert H., Bernardi, Mariangela, Blanton, Michael R., Burles, Scott, Castander, Francsico J., ...

The Sloan Digital Sky Survey (SDSS) is an imaging and spectroscopic survey that will eventually cover approximately one-quarter of the celestial sphere and collect spectra of 10 6 galaxies, 100,000...

Sloan Digital Sky Survey: early data release (2002)

Stoughton, Chris, Lupton, Robert H., Bernardi, Mariangela, Blanton, Michael R., Burles, Scott M., Castander, Francisco J., ...

The Sloan Digital Sky Survey (SDSS) is an imaging and spectroscopic survey that will eventually cover approximately one-quarter of the celestial sphere and collect spectra of ≈ 106 galaxies,...

Sloan Digital Sky Survey: early data release (2002)

Stoughton, Chris, Lupton, Robert H., Bernardi, Mariangela, Blanton, Michael R., Burles, Scott M., Castander, Francisco J., ...

The Sloan Digital Sky Survey (SDSS) is an imaging and spectroscopic survey that will eventually cover approximately one-quarter of the celestial sphere and collect spectra of ≈ 106 galaxies,...

Galaxy Population in a Cluster of Galaxies around the Radio Galaxy 3C 324 at z=1.2 (2001)

Nakata, Fumiaki, Kajisawa, Masaru, Yamada, Toru, Kodama, Tadayuki, Shimasaku, Kazuhiro, Tanaka, Ichi, ...

We discuss the properties of galaxies around the radio galaxy 3C 324 at z=1.2 based on BVRIK' multi-band imaging data. We have applied a photometric-redshift technique to objects in the 3C 324 field,...

Discovery of Very Extended Emission-Line Region around the Seyfert 2 Galaxy NGC 4388 (2001)

Yoshida, Michitoshi, Yagi, Masafumi, Okamura, Sadanori, Aoki, Kentaro, Ohyama, Youichi, Komiyama, Yutaka, ...

We found a very large, 35 kpc, emission-line region around the Seyfert type 2 galaxy NGC 4388, using deep narrow-band imaging with the prime focus camera (Suprime-Cam) of the Subaru telescope. This...

Statistical Properties of Lyman Break Galaxies at z~4 (2001)

Ouchi, Masami, Shimasaku, Kazuhiro, Okamura, Sadanori, Doi, Mamoru, Furusawa, Hisanori, Hamabe, Masaru, ...

We study the luminosity function and the correlation function of about 1200 z~4 Lyman break galaxies (LBGs) with i' 3 sigma significance level. Interpreting this as being due to galaxy mergers, we...

New Improved Photometric Redshifts of Galaxies in the HDF (1999)

Furusawa, Hisanori, Shimasaku, Kazuhiro, Doi, Mamoru, Okamura, Sadanori

We report new improved photometric redshifts of 1048 galaxies in the Hubble Deep Field (HDF). A standard chi^2 minimizing method is applied to seven-color UBVIJHK photometry by Fernandez-Soto,...

Probing the evolution of early-type galaxies using multi-colour number counts and redshift distributions (1999)

Nakata, Fumiaki, Shimasaku, Kazuhiro, Doi, Mamoru, Kashikawa, Nobunari, Kawasaki, Wataru, Komiyama, Yutaka, ...

We investigate pure luminosity evolution models for early-type (elliptical and S0) galaxies (i.e., no number density change or morphology transition), and examine whether these models are consistent...

Retrieving Bulge and Disk Parameters and Asymptotic Magnitudes from the Growth Curves of Galaxies (1998)

Okamura, Sadanori, Yasuda, Naoki, Shimasaku, Kazuhiro, Yagi, Masafumi, Weinberg, David H.

We show that the growth curves of galaxies can be used to determine their bulge and disk parameters and bulge-to-total luminosity ratios, in addition to their conventional asymptotic magnitudes,...

An Objective and Automatic Cluster Finder: An Improvement of the Matched-Filter Method (1997)

Kawasaki, Wataru, Shimasaku, Kazuhiro, Doi, Mamoru, Okamura, Sadanori

We describe an objective and automated method for detecting clusters of galaxies from optical imaging data. This method is a variant of the so-called `matched-filter' technique pioneered by Postman...