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GRB 070201: A possible Soft Gamma Ray Repeater in M31
E. O. Ofek, M. Muno, R. Quimby +13
The gamma-ray burst (GRB) 070201 was a bright short-duration hard-spectrum GRB detected by the Inter-Planetary Network (IPN). Its error quadrilateral, which has an area of 0.124 sq…
GRB070125: The First Long-Duration Gamma-Ray Burst in a Halo Environment
S. B. Cenko, D. B. Fox, B. E. Penprase +15
We present the discovery and high signal-to-noise spectroscopic observations of the optical afterglow of the long-duration gamma-ray burst GRB070125. Unlike all previously observed…
The Broad-lined Type Ic SN 2003jd
S. Valenti, S. Benetti, E. Cappellaro +27
The results of a world-wide coordinated observational campaign on the broad-lined Type Ic SN 2003jd are presented. In total, 74 photometric data points and 26 spectra were collecte…
The Environment of M85 optical transient 2006-1: constraints on the progenitor age and mass
E. O. Ofek, S. R. Kulkarni, A. Rau +11
M85 optical transient 2006-1 (M85 OT 2006-1) is the most luminous member of the small family of V838 Mon-like objects, whose nature is still a mystery. This event took place in the…
SDSS J131339.98+515128.3: A new gravitationally lensed quasar selected based on near-infrared excess
E. O. Ofek, M. Oguri, N. Jackson +2
We report the discovery of a new gravitationally lensed quasar, SDSS J131339.98+515128.3, at a redshift of 1.875 with an image separation of 1.24". The lensing galaxy is clearly de…
GRB070610 : A Curious Galactic Transient
M. M. Kasliwal, S. B. Cenko, S. R. Kulkarni +23
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…
An unusually brilliant transient in the galaxy Messier 85
S. R. Kulkarni, E. O. Ofek, A. Rau +11
Historically, variable and transient sources have both surprised astronomers and provided new views of the heavens. Here we report the discovery of an optical transient in the outs…
GRB 060505: A possible short-duration gamma-ray burst in a star forming region at redshift of 0.09
E. O. Ofek, S. B. Cenko, A. Gal-Yam +26
On 2006 May 5, a four second duration, low energy, ~10^49 erg, Gamma-Ray Burst (GRB) was observed, spatially associated with a z=0.0894 galaxy. Here, we report the discovery of the…
Spitzer Observations of the New Luminous Red Nova M85OT2006-1
A. Rau, S. R. Kulkarni, E. O. Ofek +1
M85OT2006-1 is the latest and most brilliant addition to the small group of known Luminous Red Novae (LRNe). An identifying characteristic of the previously detected events (M31 RV…