GRB 080503: Implications of a Naked Short Gamma-Ray Burst Dominated by Extended Emission (2008)
Perley, D. A., Metzger, B. D., Granot, J., Butler, N. R., Sakamoto, T., Ramirez-Ruiz, E., ...
We report on observations of GRB 080503, a short gamma-ray burst with very bright extended emission (about 30 times the gamma-ray fluence of the initial spike) in conjunction with a thorough...
High-Redshift Starbursting Dwarf Galaxies Revealed by GRB Afterglows (2008)
Chen, Hsiao-Wen, Perley, Daniel A., Pollack, Lindsey K., Prochaska, J. X., Bloom, J. S., Dessauges-Zavadsky, M., ...
We present a study of 15 long-duration gamma-ray burst (GRB) host galaxies at z>2. The GRBs are selected with available early-time afterglow spectra in order to compare interstellar medium (ISM)...
The Exceptionally Luminous Type II-L SN 2008es (2008)
Miller, A. A., Chornock, R., Perley, D. A., Ganeshalingam, M., Li, W., Butler, N. R., ...
We report on our early photometric and spectroscopic observations of the extremely luminous Type II supernova (SN) 2008es. With an observed peak optical magnitude of m_V = 17.8 and at a redshift z =...
A photometric redshift of $z=1.8^{+0.4}_{-0.3}$ for the \agile GRB 080514B (2008)
Rossi, A., Postigo, A. De Ugarte, Ferrero, P., Kann, D. A., Klose, S., Schulze, S., ...
Aims: The AGILE gamma-ray burst GRB 080514B is the first burst with detected emission above 30 MeV and an optical afterglow. However, no spectroscopic redshift for this burst is known. Methods: We...
Thoene, C. C., Kann, D. A., Johannesson, G., Selj, J. H., Jaunsen, A., Fynbo, J. P. U., ...
With this paper we want to investigate the highly variable afterglow light curve and environment of Gamma-Ray Burst (GRB) 060526 at z=3.221. We present one of the largest photometric datasets ever...
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...
Perley, D. A., Li, W., Chornock, R., Prochaska, J. X., Butler, N. R., Chandra, P., ...
The optical afterglow of long-duration GRB 071003 is among the brightest yet to be detected from any GRB, with R ~ 12 mag in KAIT observations starting 42 s after the GRB trigger, including filtered...
The complex light-curve of the afterglow of GRB071010A (2008)
Covino, S., D'Avanzo, P., Klotz, A., Perley, D. A., Amati, L., Campana, S., ...
We present and discuss the results of an extensive observational campaign devoted to GRB071010A, a long-duration gamma-ray burst detected by the Swift satellite. This event was followed for almost a...
Observations of the Naked-Eye GRB 080319B: Implications of Nature's Brightest Explosion (2008)
Bloom, J. S., Perley, D. A., Li, W., Butler, N. R., Miller, A. A., Kocevski, D., ...
The first gamma-ray burst confirmed to be bright enough to be seen with the naked eye, GRB 080319B at redshift z = 0.937, allowed for exquisite follow-up observations across the electromagnetic...
Towards a Real-time Transient Classification Engine (2008)
Bloom, J. S., Starr, D. L., Butler, N. R., Nugent, P., Rischard, M., Eads, D., ...
Temporal sampling does more than add another axis to the vector of observables. Instead, under the recognition that how objects change (and move) in time speaks directly to the physics underlying...
GRB 070610: a curious galactic transient (2008)
Kasliwal, M. M., Cenko, S. B., Kulkarni, S. R., Cameron, P. B., Nakar, E., Ofek, E. O., ...
The complex light curve of the afterglow of GRB 071010A (2008)
Covino, S., D'Avanzo, P., Klotz, A., Perley, D. A., Amati, L., Campana, S., ...
GRB070610 : A Curious Galactic Transient (2007)
Kasliwal, M. M., Cenko, S. B., Kulkarni, S. R., Cameron, P. B., Nakar, E., Ofek, E. O., ...
GRB 070610 is a typical high-energy event with a duration of 5s.Yet within the burst localization we detect a highly unusual X-ray and optical transient, SwiftJ195509.6+261406. We see high amplitude...
Eisner, J. A., Hillenbrand, L. A., White, R. J., Bloom, J. S., Akeson, R. L., Blake, C. H.
We present high angular resolution observations with the Keck Interferometer, high dispersion spectroscopic observations with Keck/NIRSPEC, and near-IR photometric observations from PAIRITEL of a...
The Troublesome Broadband Evolution of GRB 061126: Does a Grey Burst Imply Grey Dust? (2007)
Perley, D. A., Bloom, J. S., Butler, N. R., Pollack, L. K., Holtzman, J., Blake, C. H., ...
We report on observations of a gamma-ray burst (GRB 061126) with an extremely bright (R ~ 12 mag at peak) early-time optical afterglow. The optical afterglow is already fading as a power law 22...
Torres, M. A. P., Jonker, P. G., Steeghs, D., Roelofs, G. H. A., Bloom, J. S., Casares, J., ...
We report on optical and NIR observations obtained during and after the 2004 December discovery outburst of the X-ray transient and accretion-powered millisecond pulsar IGR J00291+5934. Our...
The Interstellar Medium of GRB Host Galaxies I. Echelle Spectra of Swift GRB Afterglows (2006)
Prochaska, J. X., Bloom, J. S., Dessauges-Zavadsky, M., O'Meara, J. M., Foley, R. J., ...
We present optical echelle spectra of four gamma-ray burst (GRB) afterglows (GRB 050730, GRB 050820, GRB 051111, and GRB 060418) discovered during the first 1.5 years of operation of the Swift...
The Supernova -- Gamma-Ray Burst Connection (2006)
Observations show that at least some gamma-ray bursts (GRBs) happen simultaneously with core-collapse supernovae (SNe), thus linking by a common thread nature's two grandest explosions. We review...
Bloom, J. S., Perley, D. A., Butler, N., Prochaska, J. X., Kocevski, D., ...
Starting with the first detection of an afterglow from a short-duration hard-spectrum gamma-ray burst (SHB) by Swift last year, a growing body of evidence has suggested that SHBs are associated with...
Butler, N. R., Li, W., Perley, D., Huang, K. Y., Urata, Y., Prochaska, J. X., ...
Even with the renaissance in gamma-ray burst (GRB) research fostered by the Swift satellite, few bursts have both contemporaneous observations at long wavelengths and exquisite observations at later...
On the Incidence of Strong MgII Absorbers Along GRB Sightlines (2006)
Prochter, G. E., Prochaska, J. X., Bloom, J. S., Dessauges-Zavadsky, M., Foley, R. J., ...
We report on a survey for strong (rest equivalent width W_r >= 1A), intervening MgII systems along the sightlines to long-duration gamma-ray bursts (GRBs). The GRB spectra which comprise the survey...
Hypernova Signatures in the Late Rebrightening of GRB 050525A (2006)
Della Valle, M., Malesani, D., Bloom, J. S., Benetti, S., Chincarini, G., D'Avanzo, P., ...
We report observations of GRB 050525A, for which a Gemini North spectrum shows its redshift to be z = 0.606. This is the third closest long GRB discovered by Swift. We observed its afterglow using...
Stern, D., Van Dokkum, P. G., Nugent, P., Sand, D. J., Bloom, J. S., Ellis, R. S., ...
We report the discovery of a transient source in the central regions of galaxy cluster Abell 267.
The 2005 outburst of the halo black hole X-ray transient XTE J1118+480 (2006)
Zurita, C., Torres, M. A. P., Steeghs, D., Rodriguez-Gil, P., Munoz-Darias, T., Casares, J., ...
We present optical and infrared monitoring of the 2005 outburst of the halo black hole X-ray transient XTE J1118+480. We measured a total outburst amplitude of ~5.7+-0.1 mag in the R band and ~5 mag...
Constraints on the Diverse Progenitors of GRBs from the Large-Scale Environments (2006)
Bloom, J. S., Prochaska, J. X.
The pursuit of the progenitors of short duration-hard spectrum gamma-ray bursts (SHBs) draws strongly upon similar quests for the origin of supernovae (SNe) and long duration-soft spectrum...
No supernovae associated with two long-duration gamma ray bursts. (2006)
Fynbo, J.P.U., Watson, D., Thoene, C.C., Sollerman, J., Bloom, J.S., Davis, T.M., ...
GRB 050408: An Atypical Gamma-Ray Burst as a Probe of an Atypical Galactic Environment (2005)
Foley, R. J., Perley, D. A., Pooley, D., Prochaska, J. X., Bloom, J. S., Li, W., ...
The bright GRB 050408 was localized by HETE-II near local midnight, enabling an impressive ground-based followup effort as well as space-based followup from Swift. The Swift data from the X-Ray...
Autonomous Observing and Control Systems for PAIRITEL, a 1.3m Infrared Imaging Telescope (2005)
Bloom, J. S., Starr, Dan L., Blake, Cullen H., Skrutskie, M. F., Falco, Emilio E.
The Peters Automated Infrared Imaging Telescope (PAIRITEL) is the first meter-class telescope operating as a fully robotic IR imaging system. Dedicated in October 2004, PAIRITEL began regular...
The Galaxy Hosts and Large-Scale Environments of Short-Hard Gamma-Ray Bursts (2005)
Prochaska, J. X., Bloom, J. S., Foley, R. J., Perley, D. A., Ramirez-Ruiz, E., ...
The rapid succession of discovery of short--duration hard--spectrum GRBs has led to unprecedented insights into the energetics of the explosion and nature of the progenitors. Yet short of the...
Optical Lightcurve & Cooling Break of GRB 050502A (2005)
Yost, S. A., Alatalo, K., Rykoff, E. S., Aharonian, F., Akerlof, C. W., Ashley, M. C. B., ...
We present lightcurves of the afterglow of GRB050502A, including very early data at t-t_{GRB} < 60s. The lightcurve is composed of unfiltered ROTSE-IIIb optical observations from 44s to 6h...
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...
Bloom, J. S., Prochaska, J. X., Pooley, D., Blake, C. H., Foley, R. J., Jha, S., ...
The localization of the short-duration, hard-spectrum GRB 050509b was a watershed event. Thanks to the nearly immediate relay of the GRB position by Swift, we began imaging the GRB field 8 minutes...
A contemporaneous infrared flash from a long gamma-ray burst: an echo from the central engine (2005)
Blake, C. H., Bloom, J. S., Starr, D. L., Falco, E. E., Skrutskie, M., Fenimore, E. E., ...
The explosion that results in a cosmic gamma-ray burst (GRB) is thought to produce emission from two physical processes -- the activity of the central engine gives rise to the high-energy emission of...
Optical Light Curve and Cooling Break of GRB 050502A (2005)
Rykoff, E.S., Aharonian, F., Akerlof, C. W., Alatalo, K., Ashley, M. C. B., Güver, T., ...
We present light curves of the afterglow of GRB 050502A, including very early data at t - tGRB < 60 s. The light curve is composed of unfiltered ROTSE-IIIb optical observations from 44 s to 6 hr...
Stern, Daniel, Van Dokkum, P. G., Nugent, Peter, Sand, D. J., Ellis, R. S., Sullivan, Mark, ...
We report the discovery of a transient source in the central regions of galaxy cluster Abell 267. The object, which we call "PALS1", was found in a survey aimed at identifying highly-magnified...
Direct Detection of Dark Matter with Space-based Laser Interferometers (2004)
Dark matter pervades the Solar System, free-streaming at the halo's local Galactic orbital velocity and density. As these objects pass through the Solar system, they perturb gravitationally, and thus...
Holland, Stephen T., Bersier, David, Bloom, J. S., Garnavich, Peter G., Caldwell, Nelson, Challis, Peter, ...
We present B, V, Rc, J, H, and Ks photometry of the optical afterglow of the gamma-ray burst GRB 021211 taken at the Magellan, MMT, and WIYN observatories between 0.7 and 50 days after the burst. We...
Optical Bumps in Cosmological GRBs as Supernovae (2004)
From both photometric and broadband spectral monitoring of gamma-ray burst (GRB) lightcurve ``bumps,'' particularly in GRB 011121, a strong case grew for a supernova (SN) origin. The GRB-SN...
Cobb, B. E., Bailyn, C. D., Van Dokkum, P. G., Buxton, M. M., Bloom, J. S.
Optical and infrared monitoring of the afterglow site of gamma-ray burst (GRB) 031203 has revealed a brightening source embedded in the host galaxy, which we attribute to the presence of a supernova...
Results of a search for new microquasars in the Galaxy (2004)
Ribo, M., Paredes, J. M., Marti, J., Casares, J., Bloom, J. S., Falco, E. E., ...
We present here the results of a search for new microquasars at low galactic latitudes, based on a cross-identification between the ROSAT all sky Bright Source Catalog (RBSC) and the NRAO VLA Sky...
Optical spectroscopy of microquasar candidates at low galactic latitudes (2004)
Marti, J., Paredes, J. M., Bloom, J. S., Casares, J., Ribo, M., Falco, E. E.
We report optical spectroscopic observations of a sample of 6 low-galactic latitude microquasar candidates selected by cross-identification of X-ray and radio point source catalogs for |b|
Results of a search for new microquasars in the Galaxy (2004)
Ribó, M., Paredes, J. M., Martí, J., Casares, J., Bloom, J. S., Falco, E. E., ...
Results of a search for new microquasars in the galaxy (2004)
Bloom , J. S., Casares , J., Falco , E. E., Martí , J., Massi , M., Paredes , J.M., ...
We present here the results of a search for new microquasars at low galactic latitudes, based on a cross- identi cation between the ROSAT all sky Bright Source Catalog (RBSC) and the NRAO VLA Sky...
The detailed optical light curve of GRB 030329 (2003)
Lipkin, Y. M., Ofek, E. O., Gal-Yam, A., Leibowitz, E. M., Poznanski, D., Kaspi, S., ...
(Abridged) We present densely sampled BVRI light curves of the optical transient associated with the gamma-ray burst GRB 030329, the result of a coordinated observing campaign conducted at five...
Optical-Infrared ANDICAM Observations of the Transient Associated with GRB 030329 (2003)
Bloom, J. S., Van Dokkum, P. G., Bailyn, C. D., Buxton, M. M., Kulkarni, S. R., Schmidt, B. P.
We present photometry of the transient associated with GRB 030329 obtained with the CTIO 1.3--meter telescope and the ANDICAM instrument, a dual optical/infrared imager with a dichroic centered at...
Optical Limits on Precursor Emission from Gamma-Ray Bursts with Known Redshift (2003)
Making use of virtual observatory data, we present the first comprehensive sample of optical observations conducted before the explosion times of all gamma-ray bursts (GRBs) with known redshifts. In...
The First Two Host Galaxies of X-ray Flashes: XRF 011030 and XRF 020427 (2003)
Bloom, J. S., Fox, D., Van Dokkum, P. G., Kulkarni, S. R., Berger, E., Djorgovski, S. G., ...
Given the paucity of empirical constraints, the nature of the newly-recognized phenomena called X-Ray Flashes (XRFs) has been an open question. However, with the recent detections of radio and X-ray...
The case for late-time optical bumps in GRB afterglows as a supernova signature (2003)
Observations of late-time optical bumps have been reported for several GRBs. The timescale for such bumps, and colors of such when available, find a natural explanation as due to associated...
Is the Redshift Clustering of Long-Duration Gamma-Ray Bursts Significant? (2003)
The 26 long-duration gamma-ray bursts (GRBs) with known redshifts form a distinct cosmological set, selected differently than other cosmological probes such as quasars and galaxies. Since the...
GRB Energetics and the GRB Hubble Diagram: Promises and Limitations (2003)
Bloom, J. S., Frail, D. A., Kulkarni, S. R.
We present a complete sample of 29 GRBs for which it has been possible to determine temporal breaks (or limits) from their afterglow light curves. We interpret these breaks within the framework of...
Cosmological Uses of Gamma-Ray Bursts (2003)
Djorgovski, S. G., Kulkarni, S. R., Frail, D. A., Harrison, F. A., Bloom, J. S., Berger, E., ...
Studies of the cosmic gamma-ray bursts (GRBs) and their host galaxies are starting to provide interesting or even unique new insights in observational cosmology. GRBs represent a new way of...
The Broadband Afterglow of GRB980703 (2003)
Frail, D. A., Yost, S. A., Berger, E., Harrison, F. A., Sari, R., Kulkarni, S. R., ...
We present radio observations of the afterglow of the bright gamma-ray burst GRB980703 made between one day and one year after the burst. These data are combined with published late-time radio...
The Cosmic Gamma-Ray Bursts and Their Host Galaxies in a Cosmological Context (2003)
Djorgovski, S. G., Kulkarni, S. R., Frail, D. A., Harrison, F. A., Bloom, J. S., Berger, E., ...
Studies of the cosmic gamma-ray bursts (GRBs) and their host galaxies are now starting to provide interesting or even unique new insights in observational cosmology. Observed GRB host galaxies have a...
Hubble Space Telescope and Ground-Based Optical and Ultraviolet Observations of GRB010222 (2003)
Galama, T. J., Reichart, D., Brown, T. M., Kimble, R. A., Price, P. A., Berger, E., ...
We report on Hubble Space Telescope WFPC2 optical and STIS near ultraviolet MAMA observations, and ground-based optical observations of GRB010222, spanning 15 hrs to 71 days. The observations are...
Optical Spectropolarimetry of the GRB 020813 Afterglow (2002)
Barth, A. J., Sari, R., Cohen, M. H., Goodrich, R. W., Price, P. A., Fox, D. W., ...
The optical afterglow of gamma-ray burst 020813 was observed for 3 hours with the LRIS spectropolarimeter at the Keck-I telescope, beginning 4.7 hours after the burst was detected by HETE-2. The...
Bloom, J. S., Berger, E., Kulkarni, S. R., Djorgovski, S. G., Frail, D. A.
Using the Echellete Spectrograph Imager (ESI) on the Keck II 10-m telescope we have measured the redshifts of the host galaxies of gamma-ray bursts GRB 990506 and GRB 000418, z=1.30658 +/- 0.00004...
Discovery of GRB 020405 and its Late Red Bump (2002)
Price, P. A., Kulkarni, S. R., Berger, E., Fox, D. W., Bloom, J. S., Djorgovski, S. G., ...
We present the discovery of GRB 020405 made with the Inter-Planetary Network (IPN). With a duration of 60 s, the burst appears to be a typical long duration event. We observed the 75-square acrminute...
Berger, E., Kulkarni, S. R., Bloom, J. S., Price, P. A., Fox, D. W., Frail, D. A., ...
We present ground-based optical observations of GRB 020124 starting 1.6 hours after the burst, as well as subsequent Very Large Array (VLA) and Hubble Space Telescope (HST) observations. The optical...
GRB 010921: Strong Limits on an Underlying Supernova from HST (2002)
Price, P. A., Kulkarni, S. R., Schmidt, B. P., Galama, T. J., Bloom, J. S., Berger, E., ...
GRB 010921 was the first HETE-2 GRB to be localized via its afterglow emission. The low-redshift of the host galaxy, z=0.451, prompted us to undertake intensive multi-color observations with the...
Time-Dependent Optical Spectroscopy of GRB 010222: Clues to the GRB Environment (2002)
Mirabal, N., Halpern, J. P., Kulkarni, S. R., Castro, S., Bloom, J. S., Djorgovski, S. G., ...
We present sequential optical spectra of the afterglow of GRB 010222 obtained one day apart using the Low Resolution Imaging Spectrometer (LRIS) and the Echellette Spectrograph and Imager (ESI) on...