18.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of California, BerkeleyUS1.3k papers
- Goddard Space Flight CenterUS457 papers
- California Institute of TechnologyUS379 papers
- Centre National de la Recherche ScientifiqueFR367 papers
- Lawrence Berkeley National LaboratoryUS262 papers
- Jet Propulsion LaboratoryUS260 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR240 papers
- National Institute for AstrophysicsIT239 papers
- University of CambridgeGB208 papers
- Imperial College LondonGB203 papers
- Institut de Recherche en Astrophysique et PlanétologieFR195 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR181 papers
24 papers · 2 filters
Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications
S. Perlmutter, G. Aldering, M. Della Valle +20
The ultimate fate of the universe, infinite expansion or a big crunch, can be determined by measuring the redshifts, apparent brightnesses, and intrinsic luminosities of very dista…
Hubble Space Telescope Imaging of the Field of GRB970508
E. Pian, A. Fruchter, L. E. Bergeron +15
We report on Hubble Space Telescope observations of the optical transient discovered in the error box of GRB970508. The object was imaged on 1997 June 2 with the Space Telescope Im…
BATSE GRB Location Errors
M. S. Briggs, G. N. Pendleton, J. J. Brainerd +4
We characterize the error distribution of BATSE GRB locations by modeling the distribution of separations between BATSE locations and IPN annuli. We determine error model parameter…
Spectral Properties of the Prompt X-ray emission and Afterglow from the Gamma-Ray Burst of 28 February 1997
F. Frontera, E. Costa, L. Piro +18
We report high-energy spectral data of the prompt emission of GRB970228 and its X-ray afterglow. We establish that the nature of the X-ray afterglow emission is non-thermal and sim…
Super-LOTIS: A High-Sensitive Optical Counterpart Search Experiment
H. S. Park, E. Ables, D. L. Band +14
We are constructing a 0.6 meter telescope system to search for early time gamma-ray burst(GRB) optical counterparts. Super-LOTIS (Super-Livermore Optical Transient Imaging System)…
First Year Results From LOTIS
G. G. Williams, H. S. Park, E. Ables +15
LOTIS (Livermore Optical Transient Imaging System) is a gamma-ray burst optical counterpart search experiment located near Lawrence Livermore National Laboratory in California. The…
Light Element Depletion in Contracting Brown Dwarfs and Pre--Main-Sequence Stars
Greg Ushomirsky, Christopher D. Matzner, Edward F. Brown +3
We present an analytic calculation of the thermonuclear depletion of the light elements lithium, beryllium, and boron in fully convective, low-mass stars. Under the presumption tha…
Hubble Space Telescope Imaging of the Optical Transient Associated with GRB970508
Elena Pian, Andrew S. Fruchter, Louis E. Bergeron +15
We report on Hubble Space Telescope (HST) observations of the optical transient (OT) discovered in the error box of the gamma-ray burst GRB970508. The object was imaged on 1997 Jun…
ROSAT evidence for AGN and superwind activity in NGC 6240 and NGC 2782
Hartmut Schulz, Stefanie Komossa, Thomas W. Berghoefer +1
We present ROSAT observations of the starburst galaxy NGC 2782 (HRI plus a weak PSPC frame) and the ultraluminous infrared galaxy NGC 6240 (PSPC). The (0.1-2.4) keV spectra of both…
The Locations of Gamma-Ray Bursts Measured by COMPTEL
R. Marc Kippen, James M. Ryan, Alanna Connors +8
The COMPTEL instrument on the Compton Gamma Ray Observatory is used to measure the locations of gamma-ray bursts through direct imaging of MeV photons. In a comprehensive search, w…
ORFEUS-I Observations of Molecular Hydrogen in the Galactic Disk
W. Van Dyke Dixon, Mark Hurwitz, Stuart Bowyer
We present measurements of interstellar H_2 absorption lines in the continuum spectra of seven early-type stars in the Galactic disk at distances between 1 and 4 kpc. Five of these…
Spectral Observations of Diffuse Far-Ultraviolet Emission from the Hot Phase of the Interstellar Medium with the Diffuse Ultraviolet Experiment
Eric J. Korpela, Stuart Bowyer, Jerry Edelstein
One of the keys to interpreting the character and evolution of interstellar matter in the galaxy is understanding the distribution of the low density hot (10^5 K -10^6 K) phase of…
Radio and Optical Follow-up Observations and Improved IPN Position of GRB 970111
T. J. Galama, P. J. Groot, R. G. Strom +12
We report on Westerbork 840 MHz, 1.4 and 5 GHz radio observations of the improved IPN-WFC error box of the gamma-ray burst GRB 970111, between 26.4 hours and 120 days after the eve…
A Determination of the Spectral Index of Galactic Synchrotron Emission in the 1-10 GHz range
P. Platania, M. Bensadoun, M. Bersanelli +5
We present an analysis of simultaneous multifrequency measurements of the Galactic emission in the 1-10 GHz range with 18 degrees, angular resolution taken from a high altitude sit…
The Propagation and Survival of Interstellar Grains
A. P. Jones, A. G. G. M. Tielens, D. J. Hollenbach +1
In this paper we discuss the propagation of dust through the interstellar medium (ISM), and describe the destructive effects of stellar winds, jets, and supernova shock waves on in…
Rxte Observations of a New X-Ray Transient: GRS 1737-31
Wei Cui, W. A. Heindl, J. H. Swank +4
We present the results from RXTE observations of a new X-ray transient, GRS 1737-31, near the Galactic center during an outburst. Over a span of two weeks, the source was seen to v…
3rd Interplanetary Network Localization, Time History, Fluence, Peak Flux, and Distance Lower Limit of the February 28, 1997 Gamma-Ray Burst
K. Hurley, E. Costa, M. Feroci +9
The gamma-ray burst of 1997 February 28 was localized using the arrival-time analysis method with the Ulysses, BeppoSAX, and WIND spacecraft. The result is a plus-or-minus 31.5 arc…
Gamma-Ray Burster Counterparts: HST Blue and Ultraviolet Data
Bradley E. Schaefer, Thomas Cline, Kevin Hurley +1
The surest solution of the Gamma Ray Burst (GRB) mystery is to find an unambiguous low-energy quiescent counterpart. However, to date no reasonable candidates have been identified…
Re-examining the Lyman Continuum in Starburst Galaxies Observed with the Hopkins Ultraviolet Telescope
Mark Hurwitz, Patrick Jelinsky, W. Van Dyke Dixon
We have reevaluated the constraints on the Lyman continuum emission from four starburst galaxies observed with the Hopkins Ultraviolet Telescope (HUT) during the Astro-2 mission. A…
Real-Time Optical Flux Limits From Gamma-Ray Bursts Measured By The GROCSE Experiment
H. S. Park, E. Ables, D. L. Band +13
The Gamma-Ray Optical Counterpart Search Experiment (GROCSE) presents new experimental upper limits on the optical flux from gamma-ray bursts (GRBs). Our experiment consisted of a…
Are Abell Clusters Correlated with Gamma-Ray Bursts?
K. Hurley, D. Hartmann, C. Kouveliotou +4
A recent study has presented marginal statistical evidence that gamma-ray burst sources are correlated with Abell clusters, based on analyses of bursts in the BATSE 3B catalog. Usi…
Non-Uniform Outflow Observed around Infrared Object NML Cygni
J. D. Monnier, M. Bester, W. C. Danchi +7
Measurements by the U.C. Berkeley Infrared Spatial Interferometer at 11.15 micron have yielded strong evidence for multiple dust shells and/or significant asymmetric dust emission…
Implications For The Hubble Constant from the First Seven Supernovae at z >= 0.35
The Supernova Cosmology Project, :, A. G. Kim +23
The Supernova Cosmology Project has discovered over twenty-eight supernovae (SNe) at 0.35 <z < 0.65 in an ongoing program that uses Type Ia SNe as high-redshift distance indicators…
FAUST observations of UV sources toward the Virgo cluster
N. Brosch, L. Formiggini, E. Almoznino +3
We analyze three UV images covering a 100 square degree field toward the Virgo cluster,obtained by the FAUST space experiment. We detect 191 sources to a signal-to-noise ratio of 4…