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Relativistic ejecta from X-ray flash XRF 060218 and the rate of cosmic explosions
- A. Soderberg, S. Kulkarni, P. McCarthy
- PhysicsNature
- 18 April 2006
TLDR
A γ-ray burst at a redshift of z ≈ 8.2
Long-duration γ-ray bursts (GRBs) are thought to result from the explosions of certain massive stars, and some are bright enough that they should be observable out to redshifts of z > 20 using…
The afterglow of GRB 050709 and the nature of the short-hard γ-ray bursts
The final chapter in the long-standing mystery of the γ-ray bursts (GRBs) centres on the origin of the short-hard class of bursts, which are suspected on theoretical grounds to result from the…
The afterglow and elliptical host galaxy of the short γ-ray burst GRB 050724
Despite a rich phenomenology, γ-ray bursts (GRBs) are divided into two classes based on their duration and spectral hardness—the long-soft and the short-hard bursts. The discovery of afterglow…
A novel explosive process is required for the γ-ray burst GRB 060614
- A. Gal-yam, D. Fox, A. Macfadyen
- PhysicsNature
- 21 December 2006
Over the past decade, our physical understanding of γ-ray bursts (GRBs) has progressed rapidly, thanks to the discovery and observation of their long-lived afterglow emission. Long-duration (≳2 s)…
Observations and Modeling of the Inner Disk Region of T Tauri Stars
- R. Akeson, C. Walker, J. Bjorkman
- Physics, Geology
- 16 December 2004
We present observations of four T Tauri stars using long baseline infrared interferometry from the Palomar Testbed Interferometer. The target sources, T Tau N, SU Aur, RY Tau, and DR Tau, are all…
Afterglows, Redshifts, and Properties of Swift Gamma-Ray Bursts
- E. Berger, S. Kulkarni, K. Pimbblet
- Physics
- 6 May 2005
We present optical, near-IR, and radio follow-up of 16 Swift bursts, including our discovery of nine afterglows and a redshift determination for three. These observations, supplemented by data from…
ON THE SOURCE OF THE DUST EXTINCTION IN TYPE Ia SUPERNOVAE AND THE DISCOVERY OF ANOMALOUSLY STRONG Na i ABSORPTION
- M. Phillips, J. Simon, A. Soderberg
- Physics
- 1 November 2013
High-dispersion observations of the Na i D λλ5890, 5896 and K i λλ7665, 7699 interstellar lines, and the diffuse interstellar band at 5780 Å in the spectra of 32 Type Ia supernovae are used as an…
A New Population of High-Redshift Short-Duration Gamma-Ray Bursts
- E. Berger, D. Fox, A. Songaila
- Physics
- 3 November 2006
The redshift distribution of the short-duration gamma-ray bursts (GRBs) is a crucial, but currently fragmentary, clue to the nature of their progenitors. Here we present optical observations of nine…
The Zwicky Transient Facility: System Overview, Performance, and First Results
- E. Bellm, S. Kulkarni, J. Zolkower
- PhysicsPublications of the Astronomical Society of the…
- 7 December 2018
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