Characteristic velocities of stripped-envelope core-collapse supernova cores (2009)
Maurer, I., Mazzali, P. A., Deng, J., Filippenko, A. V., Hamuy, M., Kirshner, R. P., ...
The velocity of the inner ejecta of stripped-envelope core-collapse supernovae (CC-SNe) is studied by means of an analysis of their nebular spectra. Stripped-envelope CC-SNe are the result of the...
Discovery of a Relativistic Supernova Without a Gamma-ray Trigger (2009)
Soderberg, A. M., Chakraborti, S., Pignata, G., Chevalier, R. A., Chandra, P., Ray, A., ...
Type Ibc supernovae (SNe Ibc) mark the gravitational collapse of some massive stars (M > 20 Msun) propelling several solar masses of material to typical velocities of ~10,000 km/s. The...
The High-Metallicity Explosion Environment of the Relativistic Supernova 2009bb (2009)
Levesque, E. M., Soderberg, A. M., Foley, R. J., Berger, E., Kewley, L. J., Chakraborti, S., ...
We investigate the environment of the nearby (d ~ 40Mpc) broad-lined Type Ic supernova SN 2009bb. This event was observed to produce a relativistic outflow likely powered by a central accreting...
Spectroscopy of High-Redshift Supernovae from the ESSENCE Project: The First Four Years (2008)
Foley, R. J., Matheson, T., Blondin, S., Chornock, R., Silverman, J. M., Challis, P., ...
We present the results of spectroscopic observations from the ESSENCE high-redshift supernova (SN) survey during its first four years of operation. This sample includes spectra of all SNe Ia whose...
Wang, Xiaofeng, Li, Weidong, Filippenko, Alexei V., Foley, R. J., Kirshner, R. P., Modjaz, M., ...
We present extensive photometry at ultraviolet (UV), optical, and near-infrared (NIR) wavelengths, as well as dense sampling of optical spectra, for the normal type Ia supernova (SN Ia) 2005cf. From...
A Second Case of Variable Na I D Lines in a Highly-Reddened Type Ia Supernova (2008)
Blondin, S., Prieto, J. L., Patat, F., Challis, P., Hicken, M., Kirshner, R. P., ...
Recent high-resolution spectra of the Type Ia SN 2006X have revealed the presence of time-variable and blueshifted Na I D features, interpreted by Patat et al. as originating in circumstellar...
Gal-Yam, A., Bufano, F., Barlow, T. A., Baron, E., Benetti, S., Cappellaro, E., ...
We present the initial results from our GALEX program designed to obtain ultraviolet (UV) spectra of nearby core-collapse supernovae (SNe). Our first target, SN 2005ay in the nearby galaxy NGC 3938,...
Gal-Yam, A., Bufano, F., Barlow, T. A., Baron, E., Benetti, S., Cappellaro, E., ...
We present the initial results from our GALEX program designed to obtain ultraviolet (UV) spectra of nearby core-collapse supernovae (SNe). Our first target, SN 2005ay in the nearby galaxy NGC 3938,...
GALEX Spectroscopy of SN 2005ay suggests a UV spectral uniformity among type II-P supernovae (2008)
Gal-Yam, A., Bufano, F., Barlow, T., Baron, E., Benetti, S., Cappellaro, E., ...
We present the first results from our GALEX program designed to obtain ultraviolet (UV) spectroscopy of nearby core-collapse supernovae (SNe). Our first target, SN 2005ay in the nearby galaxy NGC...
Exploring the Outer Solar System with the ESSENCE Supernova Survey (2008)
Becker, A. C., Arraki, K., Kaib, N. A., Wood-Vasey, W. M., Aguilera, C., Blackman, J. W., ...
We report the discovery and orbit determination of 14 trans-Neptunian objects (TNOs) from the ESSENCE Supernova Survey difference imaging dataset. Two additional objects discovered in a similar...
Gallagher, J. S., Garnavich, P. M., Caldwell, N., Kirshner, R. P., Jha, S. W., Li, W., ...
We have obtained optical spectra of 29 early-type (E/S0) galaxies that hosted type Ia supernovae (SNe Ia). We have measured absorption-line strengths and compared them to a grid of models to extract...
Modjaz, Maryam, Li, W., Butler, N., Chornock, R., Perley, D., Blondin, S., ...
(ABRIDGED) We present extensive early photometric (UBVRr'Ii'JHKs) and spectroscopic (optical and near-infrared) data on supernova (SN) 2008D as well as X-ray data on the associated X-ray transient...
Time Dilation in Type Ia Supernova Spectra at High Redshift (2008)
Blondin, S., Davis, T. M., Krisciunas, K., Schmidt, B. P., Sollerman, J., Wood-Vasey, W. M., ...
We present multiepoch spectra of 13 high-redshift Type Ia supernovae (SNe Ia) drawn from the literature, the ESSENCE and SNLS projects, and our own separate dedicated program on the ESO Very Large...
Optical spectroscopy of type Ia supernovae (2008)
Matheson, T., Kirshner, R. P., Challis, P., Jha, S., Garnavich, P. M., Berlind, P., ...
We present 432 low-dispersion optical spectra of 32 Type Ia supernovae (SNe Ia) that also have well-calibrated light curves. The coverage ranges from 6 epochs to 36 epochs of spectroscopy. Most of...
Optical Spectroscopy of Type Ia Supernovae (2008)
Matheson, T., Kirshner, R. P., Challis, P., Jha, S., Garnavich, P. M., Berlind, P., ...
We present 432 low-dispersion optical spectra of 32 Type Ia supernovae (SNe Ia) that also have well-calibrated light curves. The coverage ranges from 6 epochs to 36 epochs of spectroscopy. Most of...
Sauer, D. N., Mazzali, P. A., Blondin, S., Stehle, M., Benetti, S., Challis, P., ...
The spectral properties of type Ia supernovae in the ultraviolet (UV) are investigated using the early-time spectra of SN 2001ep and SN 2001eh obtained using the Hubble Space Telescope (HST). A...
Immler, S., Modjaz, M., Landsman, W., Bufano, F., Brown, P. J., Milne, P., ...
The peculiar Type Ib supernova (SN) 2006jc has been observed with the UV/Optical Telescope (UVOT) and X-Ray Telescope (XRT) on board the Swift observatory over a period of 19-183 days after the...
The broad-lined type Ic supernova 2003jd (2008)
Valenti, S., Benetti, S., Cappellaro, E., Patat, F., Mazzali, P., Turatto, M., ...
The results of a worldwide coordinated observational campaign on the broad-lined Type Ic supernova (SN Ic) 2003jd are presented. In total, 74 photometric data points and 26 spectra were collected...
The Las Campanas Redshift Survey Galaxy-Galaxy Autocorrelation Function (2008)
Tucker Oemler, D. L. Tucker, R. P. Kirshner, H. Lin, S. A. Shectman, S. D. Landy, ...
Presented are measurements of the observed redshift-space galaxy-galaxy autocorrelation function, ¸ gg (s), for the Las Campanas Redshift Survey (LCRS). For separations 2:0h \Gamma1 Mpc ! s ! 16:4h...
The broad-lined type Ic supernova 2003jd (2008)
Valenti, S., Benetti, S., Cappellaro, E., Patat, F., Mazzali, P., Turatto, M., ...
Time Dilation in Type Ia Supernova Spectra at High Redshift (2008)
Blondin, S., Krisciunas, K., Schmidt, B.P., Sollerman, J., Wood-Vasey, W.M., ...
We present multiepoch spectra of 13 high-redshift Type Ia supernovae (SNe Ia) drawn from the literature, the ESSENCE and SNLS projects, and our own separate dedicated program on the ESO Very Large...
Exploring the Outer Solar System with the Essence Supernova Survey (2008)
Becker, A.C., Arraki, K., Kaib, N.A., Wood-Vasey, W.M., Aguilera, C., Blackman, J.W., ...
We report the discovery and orbital determination of 14 trans-Neptunian objects (TNOs) from the ESSENCE Supernova Survey difference imaging data set. Two additional objects discovered in a similar...
Double-peaked Oxygen Lines Are not Rare in Nebular Spectra of Core-Collapse Supernovae (2007)
Modjaz, Maryam, Kirshner, R. P., Blondin, S., Challis, P., Matheson, T.
Double-peaked oxygen lines in the nebular spectra of two peculiar Type Ib/c Supernovae (SN Ib/c) have been interpreted as off-axis views of a GRB-jet or unipolar blob ejections. Here we present...
Immler, S., Modjaz, M., Landsman, W., Bufano, F., Brown, P. J., Milne, P., ...
The peculiar Type Ib supernova (SN) 2006jc has been observed with the UV/Optical Telescope (UVOT) and X-Ray Telescope (XRT) on board the Swift observatory over a period of 19 to 183 days after the...
Dwek, E., Arendt, R. G., Bouchet, P., Burrows, D. N., Challis, P., Danziger, I. J., ...
Multiwavelength observations of supernova remnant (SNR) 1987A show that its morphology and luminosity are rapidly changing at X-ray, optical, infrared, and radio wavelengths as the blast wave from...
Long Gamma-Ray Bursts and Type Ic Core Collapse Supernovae Have Similar Locations in Hosts (2007)
Kelly, P. L., Kirshner, R. P., Pahre, M.
When the afterglow fades at the site of a long-duration gamma-ray burst (LGRB), Type Ic supernovae (SN Ic) are the only type of core collapse supernova observed. Recent work found that a sample of...
The Power Spectrum of Galaxy Clustering in the Las Campanas Redshift Survey (2007)
H. Lin, R. P. Kirshner, S. A. Shectman, S. D. Landy, A. Oemler, D. L. Tucker, ...
We present the power spectrum P (k), over scales = 2ß=k = 5 \Gamma 400 h \Gamma1 Mpc, for a magnitude-limited sample of 19276 Las Campanas Redshift Survey (LCRS) galaxies, with average redshift z ß...
The Las Campanas Redshift Survey Galaxy-Galaxy Autocorrelation Function (2007)
Tucker Oemler, D. L. Tucker, R. P. Kirshner, H. Lin, S. A. Shectman, S. D. Landy, ...
We present here a definitive measurement of the observed redshift-space galaxy-galaxy autocorrelation function, ¸ gg (s), for the Las Campanas Redshift Survey (LCRS). We find that, for separations...
Direct Analysis of Spectra of the Type Ic Supernova 1994I (2007)
Jennifer Millard, David Branch, E. Baron, Adam Fisher, A. V. Filippenko, R. P. Kirshner, ...
Synthetic spectra generated by the parameterized supernova synthetic-- spectrum code SYNOW are compared to observed photospheric--phase spectra of the Type Ic supernova 1994I. The observed optical...
Large-Scale Color-Segregation In The Las Campanas Redshift Survey (2007)
D. L. Tucker, Tucker Oemler, R. P. Kirshner, H. Lin, S. A. Shectman, P. L. Schechter
The Las Campanas Redshift Survey (LCRS) is a galaxy survey which extends to a redshift of 0.2 and which is composed of a total of 6 alternating 1.5 ffi \Theta 80 ffi Slices in the North and South...
Large-Scale Color-Segregation In The Las Campanas Redshift Survey (2007)
D. L. Tucker, Tucker Oemler, R. P. Kirshner, H. Lin, S. A. Shectman, P. L. Schechter
The Las Campanas Redshift Survey (LCRS) is a galaxy survey which extends to a redshift of 0.2 and which is composed of a total of 6 alternating 1.5 ffi \Theta 80 ffi Slices in the North and South...
D. L. Tucker, R. P. Kirshner, H. Lin, S. A. Shectman, S. D. Landy, P. L. Schechter, ...
Presented are measurements of the observed redshift-space galaxy-galaxy autocorrelation
Spectral Models of the Type Ic SN 1994I in M51 (2007)
E. Baron, David Branch, Peter H. Hauschildt, R. P. Kirshner
We present detailed non-local thermodynamic equilibrium (NLTE) synthetic spectra for comparison with a time series of observed optical spectra of the Type Ic supernova 1994I which occurred in M51....
The Broad-lined Type Ic SN 2003jd (2007)
Valenti, S., Benetti, S., Cappellaro, E., Patat, F., Mazzali, P., Turatto, M., ...
The results of a world-wide coordinated observational campaign on the broad-lined Type Ic SN 2003jd are presented. In total, 74 photometric data points and 26 spectra were collected using 11...
Constraining Cosmic Evolution of Type Ia Supernovae (2007)
Foley, Ryan J., Filippenko, A. V., Aguilera, C., Becker, A. C., Blondin, S., Challis, P., ...
We present the first large-scale effort of creating composite spectra of high-redshift type Ia supernovae (SNe Ia) and comparing them to low-redshift counterparts. Through the ESSENCE project, we...
The Luminous and Carbon-Rich Supernova 2006gz: A Double Degenerate Merger? (2007)
Hicken, M., Garnavich, P. M., Prieto, J. L., Blondin, S., DePoy, D. L., Kirshner, R. P., ...
Spectra and light curves of SN 2006gz show the strongest signature of unburned carbon and one of the slowest fading light curves ever seen in a type Ia event (Delta m_15 = 0.69 +/- 0.04). The...
Davis, T. M., Mortsell, E., Sollerman, J., Becker, A. C., Blondin, S., Challis, P., ...
The first cosmological results from the ESSENCE supernova survey (Wood-Vasey et al. 2007) are extended to a wider range of cosmological models including dynamical dark energy and non-standard...
Modjaz, M., Kewley, L., Kirshner, R. P., Stanek, K. Z., Challis, P., Garnavich, P. M., ...
We compare the chemical abundances at the sites of 12 nearby (z
Wood-Vasey, W. M., Miknaitis, G., Stubbs, C. W., Jha, S., Riess, A. G., Garnavich, P. M., ...
We present constraints on the dark energy equation-of-state parameter, w=P/(rho c^2), using 60 Type Ia supernovae (SNe Ia) from the ESSENCE supernova survey. We derive a set of constraints on the...
The ESSENCE Supernova Survey: Survey Optimization, Observations, and Supernova Photometry (2007)
Miknaitis, G., Pignata, G., Rest, A., Wood-Vasey, W. M., Blondin, S., Challis, P., ...
We describe the implementation and optimization of the ESSENCE supernova survey, which we have undertaken to measure the equation of state parameter of the dark energy. We present a method for...
The ESSENCE Supernova Survey: Survey optimization, observations, and supernova photometry (2007)
Miknaitis, G., Pignata, G., Rest, A., Wood‐Vasey, W. M., Blondin, S., Challis, P., ...
We describe the implementation and optimization of the ESSENCE supernova survey, which we have undertaken to measure the dark energy equation‐of‐state parameter, . We present a method for...
Miknaitis, G., Pignata, G., Rest, A., Wood-Vasey, W. M., Blondin, S., Challis, P., ...
The first cosmological results from the ESSENCE supernova survey (Wood‐Vasey and coworkers) are extended to a wider range of cosmological models including dynamical dark energy and nonstandard...
The ESSENCE Supernova Survey: Survey optimization, observations, and supernova photometry (2007)
Miknaitis, G., Pignata, G., Rest, A., Wood‐Vasey, W. M., Blondin, S., Challis, P., ...
We describe the implementation and optimization of the ESSENCE supernova survey, which we have undertaken to measure the dark energy equation‐of‐state parameter, . We present a method for...
Miknaitis, G., Pignata, G., Rest, A., Wood-Vasey, W. M., Blondin, S., Challis, P., ...
The first cosmological results from the ESSENCE supernova survey (Wood‐Vasey and coworkers) are extended to a wider range of cosmological models including dynamical dark energy and nonstandard...
Wood-Vasey, W. M., Miknaitis, G., Stubbs, C. W., Jha, S., Riess, A. G., Garnavich, P. M., ...
We present constraints on the dark energy equation-of-state parameter, w = P/(ρc2), using 60 SNe Ia from the ESSENCE supernova survey. We derive a set of constraints on the nature of the dark energy...
Modjaz, M., Stanek, K. Z., Garnavich, P. M., Berlind, P., Blondin, S., Brown, W., ...
We present early photometric and spectroscopic data on the afterglow of GRB 060218 and report the evolution of the underlying supernova 2006aj. Our data span a time-range of 4 days to 22 days after...
Hydrogen and helium traces in type Ib-c supernovae (2005)
Elmhamdi, A., Danziger, I. J., Branch, D., Leibundgut, B., Baron, E., Kirshner, R. P.
The spectroscopic properties of a selected optical photospheric spectra of core collapse supernovae (CCSNe) are investigated.Special attention is devoted to traces of hydrogen at early phases. The...
Using Line Profiles to Test the Fraternity of Type Ia Supernovae at High and Low Redshifts (2005)
Blondin, S., Dessart, L., Leibundgut, B., Branch, D., Hoeflich, P., Tonry, J. L., ...
Using archival data of low-redshift (z < 0.01) Type Ia supernovae (SN Ia) and recent observations of high-redshift (0.16 < z 1.7] SN Ia, which are also subluminous. In addition, we give the first...
Tominaga, N., Tanaka, M., Nomoto, K., Mazzali, P. A., Deng, J., Maeda, K., ...
Observations and modeling for the light curve (LC) and spectra of supernova (SN) 2005bf are reported. This SN showed unique features: the LC had two maxima, and declined rapidly after the second...
Hubble Space Telescope Observations of Nine High-Redshift ESSENCE Supernovae (2005)
Krisciunas, Kevin, Garnavich, Peter M., Challis, Peter, Prieto, Jose Luis, Riess, A. G., Barris, B., ...
We present broad-band light curves of nine supernovae ranging in redshift from 0.5 to 0.8. The supernovae were discovered as part of the ESSENCE project, and the light curves are a combination of...
Chemistry and Star Formation in the Host Galaxies of Type Ia Supervovae (2005)
Gallagher, J. S., Garnavich, P. M., Berlind, P., Challis, P., Jha, S., Kirshner, R. P.
We study the effect of environment on the properties of type Ia supernovae by analyzing the integrated spectra of 57 local type Ia supernova host galaxies. We deduce from the spectra the metallicity,...
Limits from the Hubble Space Telescope on a Point Source in SN 1987A (2005)
Graves, G. J. M., Challis, P. M., Chevalier, R. A., Crotts, A., Filippenko, A. V., Fransson, C., ...
We observed supernova 1987A (SN 1987A) with the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope (HST) in 1999 September, and again with the Advanced Camera for Surveys (ACS)...
Deep Photometry of GRB 041006 Afterglow: Hypernova Bump at Redshift z=0.716 (2005)
Stanek, K. Z., Garnavich, P. M., Nutzman, P. A., Hartman, J. D., Garg, A., Adelberger, K., ...
We present deep optical photometry of the afterglow of gamma-ray burst (GRB) 041006 and its associated hypernova obtained over 65 days after detection (55 R-band epochs on 10 different nights). Our...
Spectroscopy of High-Redshift Supernovae from the ESSENCE Project: The First Two Years (2004)
Matheson, T., Blondin, S., Foley, R. J., Chornock, R., Filippenko, A. V., Leibundgut, B., ...
We present the results of spectroscopic observations of targets discovered during the first two years of the ESSENCE project. The goal of ESSENCE is to use a sample of ~200 Type Ia supernovae (SNe...
A New Cataclysmic Variable in Hercules (2004)
Price, A., Gary, B., Bedient, J., Cook, L., Templeton, M., Pullen, C., ...
We present time-series observations, spectra and archival outburst data of a newly-discovered variable star in Hercules, Var Her 04. Its orbital period, mass ratio, and outburst amplitude resemble...
Optical Spectra of the Type Ia Supernova 1998aq (2003)
Branch, D., Garnavich, P., Matheson, T., Baron, E., Thomas, R. C., Hatano, K., ...
We present 29 optical spectra of the normal Type Ia SN 1998aq, ranging from 9 days before to 241 days after the time of maximum brightness. This spectroscopic data set, together with photometric data...
Jonker, P. G., Nelemans, G., Wang, Z., Kong, A. K. H., Chakrabarty, D., Garcia, M., ...
We have obtained optical and near-infrared images of the field of the accreting millisecond X-ray pulsar XTE J1751-305. There are no stars in the 0.7'' error circle (0.7'' is the overall uncertainty...
The Progenitor of Supernova 1993J Revisited (2002)
Van Dyk, S. D., Garnavich, P. M., Filippenko, A. V., Hoeflich, P., Kirshner, R. P., Kurucz, R. L., ...
From Hubble Space Telescope images with 0.05" resolution we identify four stars brighter than V=25 mag within 2.5" of SN 1993J in M81 which contaminated previous ground-based brightness estimates for...
The Axially Symmetric Ejecta of Supernova 1987A (2002)
Wang, L., Wheeler, J. C., Hoeflich, P., Khokhlov, A., Baade, D., Branch, D., ...
Extensive early observations proved that the ejecta of supernova 1987A (SN 1987A) are aspherical. Fifteen years after the supernova explosion, the Hubble Space Telescope has resolved the rapidly...
Supernova 1998bw - The final phases (2002)
Sollerman, J., Holland, S. T., Challis, P., Fransson, C., Garnavich, P., Kirshner, R. P., ...
The probable association with GRB 980425 immediately put SN 1998bw at the forefront of supernova research. Here, we present revised late-time BVRI light curves of the supernova, based on template...
Extraordinary Late-Time Infrared Emission of Type IIn Supernovae (2002)
Gerardy, C. L., Fesen, R. A., Nomoto, K., Garnavich, P., Jha, S., Challis, P. M., ...
Near-Infrared (NIR) observations are presented for five Type IIn supernovae (SN 1995N, SN 1997ab, SN 1998S, SN 1999Z, and SN 1999el) that exhibit strong infrared excesses at late times (t >= 100 d)....
Garnavich, P. M., Stanek, K. Z., Wyrzykowski, L., Infante, L., Bendek, E., Bersier, D., ...
We present the discovery and follow-up observations of the afterglow of the GRB 011121 and its associated supernova SN 2001ke. Images were obtained with the OGLE 1.3m telescope in BVRI passbands,...
Preliminary Spectral Analysis of the Type II Supernova 1999em (2000)
Baron, E., Branch, David, Hauschildt, Peter H., Filippenko, Alexei V., Kirshner, R. P., Challis, P. M., ...
We have calculated fast direct spectral model fits to two early-time spectra of the Type-II plateau SN 1999em, using the SYNOW synthetic spectrum code. The first is an extremely early blue optical...
Lentz, Eric J., Baron, E., Lundqvist, Peter, Branch, David, Hauschildt, Peter H., Fransson, Claes, ...
We present spectral analysis of early observations of the Type IIn supernova 1998S using the general non-local thermodynamic equilibrium atmosphere code \tt PHOENIX}. We model both the underlying...
Loose Groups of Galaxies in the Las Campanas Redshift Survey (2000)
Tucker, D. L., Oemler, A., Hashimoto, Y., Shectman, S. A., Kirshner, R. P., Lin, H., ...
A ``friends-of-friends'' percolation algorithm has been used to extract a catalogue of dn/n = 80 density enhancements (groups) from the six slices of the Las Campanas Redshift Survey (LCRS). The full...
RJK Observations of the Optical Afterglow of GRB 991216 (2000)
Garnavich, P. M., Jha, S., Pahre, M. A., Stanek, K. Z., Kirshner, R. P., Garcia, M. R., ...
We present near-infrared and optical observations of the afterglow to the Gamma-Ray Burst (GRB) 991216 obtained with the F. L. Whipple Observatory 1.2-m telescope and the University of Hawaii 2.2-m...
Spectral Models of the Type Ic SN 1994I in M51 (1999)
Baron, E., Branch, David, Hauschildt, Peter H., Filippenko, Alexei V., Kirshner, R. P.
We present detailed non-local thermodynamic equilibrium (NLTE) synthetic spectra for comparison with a time series of observed optical spectra of the Type Ic supernova 1994I which occurred in M51....
Supernova Limits on the Cosmic Equation of State (1998)
Garnavich, P. M., Jha, S., Challis, P., Clocchiatti, A., Diercks, A., Filippenko, A. V., ...
We use Type Ia supernovae studied by the High-Z Supernova Search Team to constrain the properties of an energy component which may have contributed to accelerating the cosmic expansion. We find that...
Groups of Galaxies in the Las Campanas Redshift Survey (1997)
Tucker, D. L., Hashimoto, Y., Kirshner, R. P., Landy, S. D., Lin, H., Oemler, A., ...
A "friends-of-friends" percolation algorithm has been used to extract a catalogue of drho/rho = 80 density enhancements (groups) from the six slices of the Las Campanas Redshift Survey (LCRS). The...
Garnavich, P. M., Kirshner, R. P., Challis, P., Tonry, J., Gilliland, R. L., Smith, R. C., ...
We have coordinated Hubble Space Telescope photometry with ground-based discovery for three supernovae: two SN Ia near z~0.5 (SN 1997ce, SN 1997cj) and a third event at z=0.97 (SN 1997ck). The superb...
Time Dilation from Spectral Feature Age Measurements of Type Ia Supernovae (1997)
Riess, A. G., Filippenko, A. V., Leonard, D. C., Schmidt, B. P., Suntzeff, N., Phillips, M. M., ...
We have developed a quantitative, empirical method for estimating the age of Type Ia supernovae (SNe Ia) from a single spectral epoch. The technique examines the goodness of fit of spectral features...
What do we know about global properties of the universe (1997)
Börner, Gerhard, Buchert, Thomas, Ehlers, Jürgen, Ellis, George F. R., Hogan, C. J., Kirshner, R. P., ...
The Las Campanas Redshift Survey Galaxy-Galaxy Autocorrelation Function (1996)
Tucker, D. L., Oemler, A., Kirshner, R. P., Lin, H., Shectman, S. A., ...
Presented are measurements of the observed redshift-space galaxy-galaxy autocorrelation function, xi(s), for the Las Campanas Redshift Survey (LCRS). For separations 2.0/h Mpc < s < 16.4/h Mpc, xi(s)...
Sonneborn, G., Fransson, C., Lundqvist, P., Cassatella, A., Gilmozzi, R., Kirshner, R. P., ...
The presence of narrow high-temperature emission lines from nitrogen-rich gas close to SN 1987A has been the principal observational constraint on the evolu- tionary status of the supernova's...
The Environment of ``E+A'' Galaxies (1995)
Zabludoff, A. I., Zaritsky, D., Lin, H., Tucker, D., Hashimoto, Y., Shectman, S. A., ...
The violent star formation history of ``E+A'' galaxies and their detection almost exclusively in distant clusters is frequently used to link them to the ``Butcher-Oemler effect'' and to argue that...
Landy, S. D., Shectman, S. A., Lin, H., Kirshner, R. P., Oemler, A. A., Tucker, D.
We have measured the 2 dimensional (2D) power spectrum of the Las Campanas Redshift Survey on scales between 30 and 200 Mpc (q_0=0.5, H_o=100h km sec^{-1} Mpc^{-1}). Such an analysis is more...
Preliminary Spectral Analysis of SN 1994I (1995)
Baron, E., Hauschildt, P. H., Branch, D., Kirshner, R. P., Filippenko, A. V.
We present optical spectra of the Type Ic supernova 1994I in M51 and preliminary non-LTE analysis of the spectra. Our models are not inconsistent with the explosions of C+O cores of massive stars....
Preliminary Spectral Analysis of SN 1994I (1995)
E. Baron, P. H. Hauschildt, D. Branch, R.P. Kirshner, A.V. Filippenko
We present optical spectra of the Type Ic supernova 1994I in M51 and preliminary non-LTE analysis of the spectra. Our models are not inconsistent with the explosions of C+O cores of massive stars....
Expanding Photospheres of Type II Supernovae and the Extragalactic Distance Scale (1992)
Schmidt, B P, Kirshner, R P, Eastman, R G
We use the Expanding Photosphere Method to determine distances to 10 type II supernovae. The effects of asymmetries, extinction, and flux dilution are explored. Using empirical evidence and...