Active Galactic Nuclei in Groups and Clusters of Galaxies: Detection and Host Morphology (2009)
Arnold, Timothy J., Martini, Paul, Mulchaey, John S., Berti, Angela, Jeltema, Tesla E.
The incidence and properties of Active Galactic Nuclei (AGN) in the field, groups, and clusters can provide new information about how these objects are triggered and fueled, similar to how these...
The Evolution of AGN in Groups and Clusters (2009)
The evolution of AGN in groups and clusters provides important information about how their black holes grow, the extent to which galaxies and black holes coevolve in dense environments, and has...
The Evolution of Active Galactic Nuclei in Clusters of Galaxies to Redshift 1.3 (2009)
Martini, Paul, Sivakoff, Gregory R., Mulchaey, John S.
We have measured the luminous AGN population in a large sample of clusters of galaxies and find evidence for a substantial increase in the cluster AGN population from z~0.05 to z~1.3. The present...
The Nuclear Outflows and Feedback in the Seyfert 2 Galaxy Markarian 573 (2009)
Schlesinger, K., Pogge, Richard W., Martini, Paul, Shields, Joseph C., Fields, Dale
We present a study of outflow and feedback in the well-known Seyfert 2 galaxy Markarian 573 using high angular resolution long-slit spectrophotometry obtained with the Hubble Space Telescope Imaging...
Watson, Linda C., Martini, Paul, Dasyra, Kalliopi M., Bentz, Misty C., Ferrarese, Laura, Peterson, Bradley M., ...
We present the first use of the Gemini North laser guide star adaptive optics (LGS AO) system and an integral field unit (IFU) to measure the stellar velocity dispersion of the host of a luminous...
Kim, Minjin, Ho, Luis C., Peng, Chien Y., Barth, Aaron J., Im, Myungshin, Martini, Paul, ...
We investigate the origin of the intrinsic scatter in the correlation between black hole mass (MBH) and bulge luminosity [L(bulge)] in a sample of 45 massive, local (z < 0.35) type~1 active galactic...
Watson, Linda C., Martini, Paul, Dasyra, Kalliopi M., Bentz, Misty C., Ferrarese, Laura, Peterson, Bradley M., ...
We present the first use of the Gemini North laser guide star adaptive optics (LGS AO) system and an integral field unit (IFU) to measure the stellar velocity dispersion of the host of a luminous...
Wide-Field Chandra X-Ray Observations of AGN in Abell 85 & Abell 754 (2008)
Sivakoff, Gregory R., Martini, Paul, Zabludoff, Ann I., Kelson, Daniel D., Mulchaey, John S.
To better understand the mechanism or mechanisms that lead to AGN activity today, we measure the X-ray AGN fraction in a new sample of nearby clusters and examine how it varies with galaxy...
Watson, Linda C., Martini, Paul, Dasyra, Kalliopi M., Bentz, Misty C., Ferrarese, Laura, Peterson, Bradley M., ...
Discovery of the dust-enshrouded progenitor of SN 2008S with Spitzer (2008)
Prieto, José L., Kistler, Matthew D., Thompson, Todd A., Yüksel, Hasan, Kochanek, Christopher S., Stanek, Krzysztof Z., ...
We report the discovery of the progenitor of the recent Type IIn SN 2008S in the nearby galaxy NGC 6946. Surprisingly, it was not found in deep, preexplosion optical images of its host galaxy taken...
White, Martin, Martini, Paul, Cohn, J. D.
Recent measurements of high-redshift QSO clustering from the Sloan Digital Sky Survey indicate that QSOs at z~4 have a bias b~14. We find that this extremely high clustering amplitude, combined with...
Patrick B. Hall, Paul Martini, D. L. Depoy, Ian Gatley
A candidate radio-loud broad absorption line quasar (RLBAL) has been reported by Becker et al. (1997). We present JHK observations of this object and three other radiodetected BALs taken with the new...
The Lifetime of FRIIs in Groups and Clusters: Implications for Radio-Mode Feedback (2007)
Bird, Jonathan C., Martini, Paul, Kaiser, Christian R.
We determine the maximum lifetime t_max of 52 FRII radio sources found in 26 central group galaxies from cross correlation of the Berlind SDSS group catalog with the VLA FIRST survey. Mock catalogs...
Eastman, Jason, Martini, Paul, Sivakoff, Gregory, Kelson, Daniel D., Mulchaey, John S., Tran, Kim-Vy
We present the first measurement of the AGN fraction in high-redshift clusters of galaxies (z~0.6) with spectroscopy of one cluster and archival data for three additional clusters. We identify 8 AGN...
The Distribution of AGN in Clusters of Galaxies (2007)
Martini, Paul, Mulchaey, John S., Kelson, Daniel D.
We present a study of the distribution of AGN in clusters of galaxies with a uniformly selected, spectroscopically complete sample of 35 AGN in eight clusters at z = 0.06 to 0.31. We find that the 12...
The Stellar Populations of Seyfert 2 Nuclei (2007)
Sarzi, Marc, Shields, Joe, Pogge, Rick, Martini, Paul
We present a preliminary analysis of the stellar populations in the central parsecs of a sample of 22 Seyfert 2 galaxies, based on a careful separation of nebular emission and stellar light in...
Lopes, Ramiro D. Simões, Storchi-Bergmann, Thaisa, Martini, Paul
We present a detailed investigation of the incidence of circumnuclear dust structure in a large, well-matched sample of early-type galaxies with and without Active Galactic Nuclei (AGN). All 34...
Chandra Observations of Candidate "True" Seyfert 2 Nuclei (2006)
Ghosh, Himel, Pogge, Richard W., Mathur, Smita, Martini, Paul, Shields, Joseph C.
The Unification Model for active galactic nuclei posits that Seyfert 2s are intrinsically like Seyfert 1s, but that their broad-line regions (BLRs) are hidden from our view. A Seyfert 2 nucleus that...
The Connection Between Barstrength and Circumnuclear Dust Structure (2006)
We present a comparison of barstrength Qb and circumnuclear dust morphology for 75 galaxies in order to investigate how bars affect the centers of galaxies. We trace the circumnuclear dust morphology...
Spectroscopic Confirmation of a Large AGN Population in Clusters of Galaxies (2006)
Martini, Paul, Kelson, Daniel D., Kim, Eunhyeuk, Mulchaey, John S., Athey, Alex A.
We have completed a spectroscopic survey of X-ray point sources in eight low-redshift clusters of galaxies (0.05
The evolution of the MBH-σ relation (2006)
Robertson, Brant, Hernquist, Lars, Cox, Thomas J., Di Matteo, Tiziana, Hopkins, Philip F., Martini, Paul, ...
The fundamental scaling relations of elliptical galaxies (2006)
Robertson, Brant, Cox, Thomas J., Hernquist, Lars, Franx, Marijn, Hopkins, Philip F., Martini, Paul, ...
Spatially-Resolved Narrow Line Region Kinematics in Active Galactic Nuclei (2005)
Rice, Melissa S., Martini, Paul, Greene, Jenny E., Pogge, Richard W., Shields, Joseph C., Mulchaey, John S., ...
We have analyzed HST spectroscopy of 24 nearby AGNs to investigate spatially-resolved gas kinematics in the Narrow Line Region (NLR). These observations effectively isolate the nuclear line profiles...
The Evolution of the M-sigma Relation (2005)
Robertson, Brant, Hernquist, Lars, Cox, Thomas J., Di Matteo, Tiziana, Hopkins, Philip F., Martini, Paul, ...
(Abridged) We examine the evolution of the black hole mass - stellar velocity dispersion (M-sigma) relation over cosmic time using simulations of galaxy mergers that include feedback from...
Black Holes in Galaxy Mergers: Evolution of Quasars (2005)
Hopkins, Philip F., Hernquist, Lars, Cox, Thomas J., Di Matteo, Tiziana, Martini, Paul, Robertson, Brant, ...
Based on numerical simulations of gas-rich galaxy mergers, we discuss a model in which quasar activity is tied to the self-regulated growth of supermassive black holes in galaxies. Nuclear inflow of...
A Physical Model for the Origin of Quasar Lifetimes (2005)
Hopkins, Philip F., Hernquist, Lars, Martini, Paul, Cox, Thomas J., Robertson, Brant, Di Matteo, Tiziana, ...
We propose a model of quasar lifetimes in which observational quasar lifetimes and an intrinsic lifetime of rapid accretion are strongly distinguished by the physics of obscuration by surrounding gas...
A physical model for the origin of quasar lifetimes (2005)
Hopkins, Philip F., Hernquist, Lars, Martini, Paul, Cox, Thomas J., Robertson, Brant, Di Matteo, Tiziana, ...
Black holes in galaxy mergers: evolution of quasars (2005)
Hopkins, Philip F., Hernquist, Lars, Cox, Thomas J., Di Matteo, Tiziana, Martini, Paul, Robertson, Brant, ...
PANIC: A Near-infrared Camera for the Magellan Telescopes (2004)
Martini, Paul, Persson, S. E., Murphy, D. C., Birk, C., Shectman, S. A., Gunnels, S. M., ...
PANIC (Persson's Auxiliary Nasmyth Infrared Camera) is a near-infrared camera designed to operate at any one of the f/11 folded ports of the 6.5m Magellan telescopes at Las Campanas Observatory,...
Bars from the Inside Out: An HST Study of their Dusty Circumnuclear Regions (2004)
The results of bar-driven mass inflow are directly observable in high-resolution HST observations of their circumnuclear regions. These observations reveal a wealth of structures dominated by dust...
Why does Low-Luminosity AGN Fueling Remain an Unsolved Problem? (2004)
Despite many years of effort, observational studies have not found a strong correlation between the presence of any proposed fueling mechanism and low-luminosity AGN. After a discussion of the mass...
A Population of Massive Globular Clusters in NGC 5128 (2004)
We present velocity dispersion measurements of 14 globular clusters in NGC 5128 (Centarus A) obtained with the MIKE echelle spectrograph on the 6.5m Magellan Clay telescope. These clusters are among...
Multiepoch Sky Surveys and the Lifetime of Quasars (2003)
Martini, Paul, Schneider, Donald P.
We present a new method to measure the episodic lifetime of quasars with current and future large-scale sky surveys. Future photometric observations of large samples of confirmed quasars can provide...
The QSO lifetime t_Q is one of the most fundamental quantities for understanding black hole and QSO evolution, yet it remains uncertain by several orders of magnitude. If t_Q is long, then only a...
Martini, Paul, Regan, Michael W., Mulchaey, John S., Pogge, Richard W.
(Abridged) We present a detailed study of the relation between circumnuclear dust morphology, host galaxy properties, and nuclear activity in nearby galaxies. We use our sample of 123 nearby galaxies...
Circumnuclear Dust in Nearby Active and Inactive Galaxies. I. Data (2002)
Martini, Paul, Regan, Michael W., Mulchaey, John S., Pogge, Richard W.
The detailed morphology of the interstellar medium (ISM) in the central kiloparsec of galaxies is controlled by pressure and gravitation. The combination of these forces shapes both circumnuclear...
An Unexpectedly High AGN Fraction in Red Cluster Galaxies (2002)
Martini, Paul, Kelson, Daniel D., Mulchaey, John S., Trager, Scott C.
As part of a program to study the evolution of active galactic nuclei (AGN) in clusters of galaxies, we present our results for Abell 2104. A deep Chandra observation of this massive, z = 0.154...
Pogge, Richard W., Martini, Paul
We present archival Hubble Space Telescope images of the nuclear regions of 43 of the 46 Seyfert galaxies found in the volume-limited, spectroscopically-complete CfA Redshift Survey sample. Using an...
Martini, Paul, Pogge, Richard W., Ravindranath, Swara, An, Jin H.
We present near-infrared J and H surface photometry of 24 of the nearby Seyfert 1.8, 1.9 and 2 galaxies from the CfA Seyfert sample. The excellent angular resolution of HST probes spatial scales as...
Morphology of AGN in the central kiloparsec (2001)
Hubble Space Telescope observations of the central kiloparsec of AGN have revealed a wealth of structure, particularly nuclear bars and spirals, that are distinct from analogous features in the disks...
Very Red and Extremely Red Galaxies in the Fields of z ~ 1.5 Radio-Loud Quasars (2001)
Hall, Patrick B., Sawicki, Marcin, Martini, Paul, Finn, Rose A., Pritchet, C. J., Osmer, Patrick S., ...
We previously identified an excess of mostly red galaxies around 31 RLQs at z=1-2. These fields have an ERO (extremely red object, R-K>6) density 2.7 times higher than the field. Assuming the EROs...
A Deep Multicolor Survey. VII. Extremely Red Objects and Galaxy Formation (2000)
Extremely Red Objects (EROs) offer a window to the universe at z~1 analogous to that provided by the Lyman Break galaxies at z=3. Passive evolution and hierarchical galaxy formation models make very...
I present near-infrared J (1.25um), H (1.65um), and K (2.2um) imaging observations of 185 square arcminutes in 21 high galactic latitude fields. These observations reach limiting magnitudes of J ~ 21...
Quasar Clustering and the Lifetime of Quasars (2000)
Martini, Paul, Weinberg, David H.
Although the population of luminous quasars rises and falls over a period of 10^9 years, the typical lifetime of individual quasars is uncertain by several orders of magnitude. We show that quasar...
Martini, Paul, Pogge, Richard W.
We present an investigation of possible fueling mechanisms operating in the inner kiloparsec of Seyfert galaxies. We analyze visible and near-infrared Hubble Space Telescope images of 24 Seyfert 2s...
Martini, Paul, Sellgren, K., DePoy, D. L.
We present near-infrared spectroscopy of fluorescent molecular hydrogen (H_2) emission from NGC 1333, NGC 2023, NGC 2068, and NGC 7023 and derive the physical properties of the molecular material in...
Martini, Paul, Wagner, R. Mark, Tomaney, Austin, Rich, R. Michael, Della Valle, M., Hauschildt, Peter H.
We report photometry and spectroscopy of the evolution of Nova Sagittarii 1994 #1 (V4332 Sagittarii) during outburst. We compare the photometric and spectral evolution of this outburst to known...
A Deep Multicolor Survey V: The M Dwarf Luminosity Function (1998)
Martini, Paul, Osmer, Patrick S.
We present a study of M dwarfs discovered in a large area, multicolor survey. We employ a combination of morphological and color criteria to select M dwarfs to a limiting magnitude in V of 22, the...
Quasar Candidates in the Hubble Deep Field (1998)
Conti, Alberto, Kennefick, Julia D., Martini, Paul, Osmer, Patrick S.
We focus on the search for unresolved faint quasars and AGN in the crude combine images using a multicolor imaging analysis that has proven very successful in recent years. Quasar selection was...
Hall, Patrick, Martini, Paul, Depoy, Darren, Gatley, Ian
Also archived in: arXiv:astro-ph/9704182 v2 15 May 1997
Hall, Patrick, Martini, Paul, Depoy, Darren, Gatley, Ian
Also archived in: arXiv:astro-ph/9704182 v2 15 May 1997
Tiede, Glenn P., Martini, Paul, Frogel, Jay A.
We apply the giant branch slope-[Fe/H] relation derived by Kuchinski et al. [AJ, 109, 1131 (1995)] to a sample of open clusters. We find that the slope of the giant branch in K vs. (J-K)...
Hall, Patrick B., Martini, Paul, Depoy, D. L., Gatley, Ian
A candidate radio-loud broad absorption line quasar (RLBAL) has been reported by Becker et al. (1997). We present JHK observations of this object and three other radio-detected BALs taken with the...
Near-Infrared Spectroscopy of Molecular Filaments in the Reflection Nebula NGC 7023 (1997)
Martini, Paul, Sellgren, K., Hora, Joseph L.
We present near-infrared spectroscopy of fluorescent molecular hydrogen (H_2) emission from molecular filaments in the reflection nebula NGC 7023. We derive the relative column densities of H_2...
Studien über Perkussion und Auskultation. (1922)
Aus: Dt. Archiv f. klin. Med. Bd 139.
Veränderungen des zentralen und peripheren Pulses unter verschiedenen Einflüssen. (1917)
München, Med. Diss., 1917.