Discovery of Radio Afterglow from the Most Distant Cosmic Explosion (2009)
Chandra, Poonam, Frail, Dale A., Fox, Derek, Kulkarni, Shrinivas, BErger, Edo, Cenko, S. Bradley, ...
We report the discovery of radio afterglow emission from the gamma-ray burst GRB 090423, which exploded at a redshift of 8.3, making it the object with the highest known redshift in the Universe. By...
Fong, Wen-fai, Berger, Edo, Fox, Derek B.
[Abridged] We present the first comprehensive analysis of Hubble Space Telescope (HST) observations of short-duration gamma-ray burst (GRB) host galaxies. These observations allow us to characterize...
The Host Galaxies of Gamma-Ray Bursts I: ISM Properties of Ten Nearby Long-Duration GRB Hosts (2009)
Levesque, Emily M., Berger, Edo, Kewley, Lisa J., Bagley, Megan M.
We present the first observations from a large-scale survey of nearby (z < 1) long-duration gamma-ray burst (LGRB) host galaxies, which consist of eight rest-frame optical spectra obtained at Keck...
Short-Term H-alpha Variability in M Dwarfs (2009)
Lee, Khee-Gan, Berger, Edo, Knapp, Gillian R.
We study the variability of H-alpha emission in mid- to late-M dwarfs on timescales of ~ 0.1-1 hr as a proxy for magnetic activity. We spectroscopically observed 43 active dwarfs with spectral types...
The Dynamic X-ray Sky of the Local Universe (2009)
Soderberg, Alicia M., Grindlay, Jonathan E., Bloom, Joshua S., Gezari, Suvi, Piro, Anthony L., Belloni, Tomaso, ...
Over the next decade, we can expect time domain astronomy to flourish at optical and radio wavelengths. In parallel with these efforts, a dedicated transient "machine" operating at higher energies...
A comprehensive study of GRB 070125, a most energetic gamma-ray burst (2008)
Chandra, Poonam, Cenko, S. Bradley, Frail, Dale A., Chevalier, Roger A., Macquart, Jean-Pierre, Kulkarni, Shri R., ...
We present a comprehensive multiwavelength analysis of the bright, long-duration gamma-ray burst GRB 070125, comprised of observations in gamma-ray, X-ray, optical, millimeter, and centimeter wave...
A comprehensive study of GRB 070125, a most energetic gamma-ray burst (2008)
Chandra, Poonam, Cenko, S. Bradley, Frail, Dale A., Chevalier, Roger A., Macquart, Jean-Pierre, Kulkarni, Shri R., ...
We present a comprehensive multiwavelength analysis of the bright, long-duration gamma-ray burst GRB 070125, comprised of observations in gamma-ray, X-ray, optical, millimeter, and centimeter wave...
GRB 070125: The first long-duration gamma-ray burst in a halo environment (2008)
Cenko, S. Bradley, Fox, Derek B., Penprase, Brian E., Cucchiara, Antonio, Price, Paul A., Berger, Edo, ...
We present the discovery and high signal-to-noise ratio spectroscopic observations of the optical afterglow of the long-duration gamma-ray burst GRB 070125. Unlike all previously observed...
A comprehensive study of GRB 070125, a most energetic gamma ray burst (2008)
Chandra, Poonam, Cenko, S. Bradley, Frail, Dale, Chevalier, Roger, Macquart, Jean-Pierre, Kulkarni, Shri, ...
We present a comprehensive multiwavelength analysis of the bright, long duration gamma-ray burst GRB 070125, comprised of observations in $\gamma$-ray, X-ray, optical, millimeter and centimeter...
Cenko, S. Bradley, Berger, Edo, Nakar, Ehud, Kasliwal, Mansi M., Cucchiara, Antonio, Kulkarni, Shri R., ...
We present optical spectra of the host galaxies of the short-duration gamma-ray burst GRB 070429B and the likely short-duration with extended emission GRB 070714B. In both cases, we find a single...
Chary, Ranga-Ram, Berger, Edo, Cowie, Len
We present deep Spitzer 3.6 micron observations of three z~5 GRB host galaxies. Our observations reveal that z~5 GRB hosts are a factor of 3 less luminous than the median rest-frame V-band luminosity...
Constraints on type Ib/c supernovae and gamma-ray burst progenitors (2007)
Fryer, Chris L., Mazzali, Paolo A., Prochaska, Jason, Cappellaro, Enrico, Panaitescu, Alin, Berger, Edo, ...
We determine the relative rates of short GRBs in cluster and field early-type galaxies as a function of the age probability distribution of their progenitors, P(\tau) \propto \tau^n. This analysis...
Shin, Min-Su, Berger, Edo, Penprase, Bryan E., Fox, Derek B., Price, Paul A., Kulkarni, Shri R., ...
We present a high-resolution Keck/ESI spectrum of GRB, which exhibits four absorption systems at z=1.04329, 1.95260, 1.96337, and 1.98691. The two highest redshift systems, separated by about 2400...
We present radio observations of a comprehensive sample of 90 dwarf stars and brown dwarfs ranging from spectral type M5 to T8. We detect three radio active sources in addition to the six objects...
Cosmic explosions: the beasts and their lair (2004)
The diversity of stellar death is revealed in the energy, velocity and geometry of the explosion debris ("ejecta"). Using multi-wavelength observations of gamma-ray burst (GRB) afterglows I show that...
Cosmic explosions: the beasts and their lair (2004)
The diversity of stellar death is revealed in the energy, velocity and geometry of the explosion debris ("ejecta"). Using multi-wavelength observations of gamma-ray burst (GRB) afterglows I show that...
Cosmic explosions : the beasts and their lair : thesis / (2004)
VLA and VLBA observations.
How Common are Engines in Ib/c Supernovae? (2003)
The association of gamma-ray bursts (GRBs) and core-collapse supernovae (SNe) of Type Ib and Ic was motivated by the detection of SN1998bw in the error box of GRB980425 and the now-secure...
The Diversity of Cosmic Explosions: Gamma-Ray Bursts and Type Ib/c Supernovae (2003)
The death of massive stars and the processes which govern the formation of compact remnants are not fully understood. Observationally, this problem may be addressed by studying different classes of...
SN 2002cx: The Most Peculiar Known Type Ia Supernova (2003)
Li, Weidong, Filippenko, Alexei V., Chornock, Ryan, Berger, Edo, Berlind, Perry, Calkins, Michael L., ...
We present photometric and spectroscopic observations of supernova (SN) 2002cx, which reveal it to be unique among all observed type Ia supernovae (SNe Ia). SN 2002cx exhibits a SN 1991T-like...
Physical Constraints From Broadband Afterglow Fits:GRB000926 as an Example (2001)
Yost, Sarah A., Sari, Re'em, Harrison, Fiona A., Berger, Edo, Diercks, Alan, Galama, Titus, ...
We develop a model to fit the broadband afterglows of GRBs from the intrinsic parameters of the fireball's synchrotron emission, and apply it to a few well-studied events, with the goal of...