10.4k citations · 30k across the 143 of their papers we have counts for
24 papers · 2 filters
A Gravitationally Lensed Quasar with Quadruple Images Separated by 14.62 Arcseconds
N. Inada, M. Oguri, B. Pindor +29
Gravitational lensing is a powerful tool for the study of the distribution of dark matter in the Universe. The cold-dark-matter model of the formation of large-scale structures pre…
Gamma-Ray Bursts as a Probe of the Epoch of Reionization
D. Q. Lamb, Z. Haiman
GRBs are expected to occur at redshifts far higher than the highest quasar redshifts so far detected. And unlike quasars, GRB afterglows may provide "clean" probes of the epoch of…
Application of the Variability -> Luminosity Indicator to X-Ray Flashes
D. E. Reichart, D. Q. Lamb, R. M. Kippen +3
We have applied the proposed variability -> luminosity indicator to ten "X-Ray Flashes" (XRFs) observed by the Wide-Field Cameras on BeppoSAX for which BATSE survey data exists. Ou…
Evidence From HETE-2 For GRB Evolution With Redshift
C. Graziani, D. Q. Lamb, T. Sakamoto +3
After taking into account threshold effects, we find that the isotropic-equivalent energies E_iso and luminosities L_iso of gamma-ray bursts (GRBs) are correlated with redshift at…
GRB Redshift Evolution Within the Unified Jet Model
T. Q. Donaghy, D. Q. Lamb, C. Graziani
HETE-2 has provided new evidence that gamma-ray bursts may evolve with redshift. We investigate the consequences of this possibility for the unified jet model of XRFs and GRBs. We…
Observation and implications of the Epeak - Eiso correlation in Gamma-Ray Bursts
J-L. Atteia, G. R. Ricker, D. Q. Lamb +5
The availability of a few dozen GRB redshifts now allows studies of the intrinsic properties of these high energy transients. Amati et al. recently discovered a correlation between…
A Unified Jet Model of X-Ray Flashes, X-ray Rich GRBs and GRBs
D. Q. Lamb, T. Q. Donaghy, C. Graziani
HETE-2 has provided strong evidence that the properties of X-Ray Flashes (XRFs) and GRBs form a continuum, and therefore that these two types of bursts are the same phenomenon. We…
The 3D power spectrum of galaxies from the SDSS
M Tegmark, M Blanton, M Strauss +32
We measure the large-scale real-space power spectrum P(k) using a sample of 205,443 galaxies from the Sloan Digital Sky Survey, covering 2417 square degrees with mean redshift z~0.…
The Ensemble Photometric Variability of ~25000 Quasars in the Sloan Digital Sky Survey
D. E. Vanden Berk, B. C. Wilhite, R. G. Kron +11
Using a sample of over 25000 spectroscopically confirmed quasars from the Sloan Digital Sky Survey, we show how quasar variability in the rest frame optical/UV regime depends upon…
Highlights of the HETE-2 Mission
D. Q. Lamb, G. R. Ricker, J. -L. Atteia +37
The HETE-2 mission has been highly productive. It has observed more than 250 GRBs so far. It is currently localizing 25 - 30 GRBs per year, and has localized 43 GRBs to date. Twent…
Gamma-Ray Bursts as a Laboratory for the Study of Type Ic Supernovae
D. Q. Lamb, T. Q. Donaghy, C. Graziani
HETE-2 has confirmed the connection between GRBs and Type Ic supernovae. Thus we now know that the progenitors of long GRBs are massive stars. HETE-2 has also provided strong evide…
Sagittarius Tidal Debris 90 kpc from the Galactic Center
Heidi Jo Newberg, Brian Yanny, Eva K. Grebel +9
A new overdensity of A-colored stars in distant parts of the Milky Way's stellar halo, at a dereddened SDSS magnitude of g_0 = 20.3, is presented. Identification of associated vari…
Scientific Highlights of the HETE-2 Mission
D. Q. Lamb, G. R. Ricker, J-L. Atteia +37
The HETE-2 mission has been highly productive. It has observed more than 250 GRBs so far. It is currently localizing 25 - 30 GRBs per year, and has localized 43 GRBs to date. Twent…
A Unified Jet Model of X-Ray Flashes and Gamma-Ray Bursts
D. Q. Lamb, T. Q. Donaghy, C. Graziani
HETE-2 has provided strong evidence that the properties of X-Ray Flashes (XRFs) and GRBs form a continuum, and therefore that these two types of bursts are the same phenomenon. We…
HETE-2 Observations of the Extremely Soft X-Ray Flash XRF 020903
T. Sakamoto, D. Q. Lamb, C. Graziani +36
We report HETE-2 WXM/FREGATE observations of the X-ray flash, XRF 020903. This event was extremely soft: the ratio log(S_X/S_gamma) = 0.7, where S_X and S_gamma are the fluences in…
The Sloan Digital Sky Survey Quasar Catalog II. First Data Release
Donald P. Schneider, Xiaohui Fan, Patrick B. Hall +13
We present the second edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog consists of 16713 objects in the SDSS First Data Release (DR1) that have luminositi…
Cataclysmic Variables from SDSS II. The Second Year
Paula Szkody, Oliver Fraser, Nicole Silvestri +18
The first full year of operation following the commissioning year of the Sloan Digital Sky Survey has revealed a wide variety of newly discovered cataclysmic variables. We show the…
An Initial Survey of White Dwarfs in the Sloan Digital Sky Survey
H. C. Harris, J. Liebert, S. J. Kleinman +35
An initial assessment is made of white dwarf and hot subdwarf stars observed in the Sloan Digital Sky Survey. In a small area of sky (190 square degrees), observed much like the fu…
HETE-2 Localization and Observation of the Bright, X-Ray-Rich Gamma-Ray Burst GRB021211
G. B. Crew, D. Q. Lamb, G. R. Ricker +35
A bright, x-ray-rich GRB was detected by HETE-2 at 11:18:34.03 UT on 11 Dec 2002. The WXM localization was to 14' and relayed to the GCN 22 s after the start of the burst. The grou…
Early-type galaxies in the SDSS. III. The Fundamental Plane
M. Bernardi, R. K. Sheth, J. Annis +7
A magnitude limited sample of nearly 9000 early-type galaxies, in the redshift range 0.01 < z < 0.3, was selected from the Sloan Digital Sky Survey using morphological and spectral…
SDSS Catalog of Stars in the Draco Dwarf Spheroidal Galaxy
Heather A. Rave, Chongshan Zhao, Heidi Jo Newberg +4
The Sloan Digital Sky Survey (SDSS) has scanned the entire region containing the Draco dwarf spheroidal galaxy to 23rd magnitude in g*. We present a catalog of stars found in a 453…
A Survey of z>5.7 Quasars in the Sloan Digital Sky Survey II: Discovery of Three Additional Quasars at z>6
Xiaohui Fan, Michael A. Strauss, Donald P. Schneider +14
We present the discovery of three new quasars at z>6 in 1300 deg^2 of SDSS imaging data, J114816.64+525150.3 (z=6.43), J104845.05+463718.3 (z=6.23) and J163033.90+401209.6 (z=6.05)…
On Departures From a Power Law in the Galaxy Correlation Function
Idit Zehavi, David H. Weinberg, Zheng Zheng +7
We measure the projected correlation function w_p(r_p) from the Sloan Digital Sky Survey for a flux-limited sample of 118,000 galaxies and for a volume limited subset of 22,000 gal…
A Low Latitude Halo Stream around the Milky Way
Brian Yanny, Heidi Jo Newberg, Eva K. Grebel +11
We present evidence for a ring of stars in the plane of the Milky Way, extending at least from l = 180 deg to l = 227 deg with turnoff magnitude ; the ring could encir…