140 citations · 1.2k across the 14 of their papers we have counts for
14 papers
UBVRIz Light Curves of 51 Type II Supernovae
Lluís Galbany, Mario Hamuy, Mark M. Phillips +34
We present a compilation of UBV RIz light curves of 51 type II supernovae discovered during the course of four different surveys during 1986 to 2003: the Cerro Tololo Supernova Sur…
Low and High Ionization Absorption Properties of Mg II Absorption-Selected Galaxies at Intermediate Redshifts. II. Taxonomy, Kinematics, and Galaxies
Christopher W. Churchill, Richard R. Mellon, Jane C. Charlton +4
[Abridged] We examine a sample of 45 Mg II absorption-selected systems over the redshift range 0.4 to 1.4. Mg II and Fe II absorption profiles were observed at a resolution of ~6 k…
Low and High Ionization Absorption Properties of Mg II Absorption-Selected Galaxies at Intermediate Redshifts. I. General Properties
Christopher W. Churchill, Richard R. Mellon, Jane C. Charlton +4
We present extensive metal-line absorption properties for 45 absorption systems that were selected by their Mg II absorption at redshifts between 0.4 and 1.4. For each system the p…
The CIV-MgII Kinematics Connection in <z>~0.7 Galaxies
C. W. Churchill, R. R. Mellon, J. C. Charlton +4
We have examined Faint Object Spectrograph data from the Hubble Space Telescope Archive for CIV 1548,1550 absorption associated with 40 MgII 2796,2803 absorption-selected galaxies…
The host galaxies of three radio-loud quasars: 3C 48, 3C 345, and B2 1425+267
Sofia Kirhakos, John N. Bahcall, Donald P. Schneider +1
Observations with the Wide-Field/Planetary Camera-2 of the Hubble Space Telescope (HST) are presented for three radio-loud quasars: 3C 48 (z=0.367), B2 1425+267 (z=0.366), and 3C 3…
The HST Quasar Absorption Line Key Project. XIV. The Evolution of Ly-alpha Absorption Lines in the Redshift Interval 0 to 1.5
Ray J. Weymann, Buell T. Jannuzi, Limin Lu +10
We present an analysis of the evolution of the Ly alpha absorption lines in the redshift interval 0.0 to \sim 1.5 based upon a sample of 987 lines identified in the spectra of 63 Q…
The Hubble Space Telescope Quasar Absorption Line Key Project XIII. A Census of Absorption Line Systems at Low Redshift
Buell T. Jannuzi, John N. Bahcall, Jacqueline Bergeron +9
We present a catalogue of absorption lines obtained from the analysis of the ultra-violet spectra of 66 quasars. The data were acquired with the Faint Object Spectrograph of the HS…
Galaxy Clustering Around Nearby Luminous Quasars
Karl B. Fisher, John N. Bahcall, Sofia Kirhakos +1
We examine the clustering of galaxies around a sample of 20 luminous low redshift (z<0.30) quasars observed with the Wide Field Camera-2 on the Hubble Space Telescope. The HST reso…
The Apparently Normal Galaxy Hosts for Two Luminous Quasars
John N. Bahcall, Sofia Kirhakos, Donald P. Schneider
HST images (with WFPC2) of PHL~909\ () and PG~0052251\ () show that these luminous radio-quiet quasars each occur in an apparently normal host galaxy. The…
HST and MERLIN Observations of the Jet in 3C273
J. N. Bahcall, S. Kirhakos, D. P. Schneider +5
We present red and blue images of the jet of the quasar 3C273 obtained with the WFPC2 on the Hubble Space Telescope as well as a new radio map made with the MERLIN array. The image…
The HST Quasar Absorption Line Key Project VII. Absorption Systems at
John N. Bahcall, Jacqueline Bergeron, Alec Boksenberg +9
We present evidence that clumps of \lya lines are physically associated with about half of the extensive metal-line systems (absorption systems with four or more observed metal-lin…
HST Images of Nearby Luminous Quasars II: Results for Eight Quasars and Tests of the Detection Sensitivity
John N. Bahcall, Sofia Kirhakos, Donald P. Schneider
HST observations of eight intrinsically luminous quasars with redshifts between and~ are presented. Seven companion galaxies brighter than lie within a p…
HST Images of Nearby Luminous Quasars
John N. Bahcall, Sofia Kirhakos, Donald P. Schneider
Strong upper limits are placed on the visual-band brightnesses of galactic hosts for four luminous, radio-quiet quasars with redshifts between and~ that were studied w…
M Dwarfs, Microlensing, and the Mass Budget of the Galaxy
John N. Bahcall, Chris Flynn, Andrew Gould +1
We show that faint red stars do not contribute significantly to the mass budget of the Galaxy or to microlensing statistics. Our results are obtained by analyzing two long exposure…