منابع مشابه
An Off-axis Model for Grb 031203
The low luminosity radio emission of the unusually faint GRB 031203 has been argued to support the idea of a class of intrinsically sub-energetic gamma-ray bursts (GRBs), currently comprising two members. While low energy GRBs probably exist, we show that the collective prompt and multiwavelength observations of the afterglow of GRB 031203 do not necessarily require a sub-energetic nature for t...
متن کاملStrong Constraints on Cosmological Gravity from GW170817 and GRB 170817A.
The detection of an electromagnetic counterpart (GRB 170817A) to the gravitational-wave signal (GW170817) from the merger of two neutron stars opens a completely new arena for testing theories of gravity. We show that this measurement allows us to place stringent constraints on general scalar-tensor and vector-tensor theories, while allowing us to place an independent bound on the graviton mass...
متن کاملThe nature of GRB 980425 and the search for off - axis GRB signatures in nearby type Ib / c supernovae emission
The identification of type Ib/c supernovae as GRB progenitors is motivated by the association of GRB980425 with SN1998bw and of GRB030329 with SN2003dh. While the γ-ray luminosity of GRB030329 was typical to cosmological GRBs, the luminosity of the nearby (40 Mpc) GRB980425 was ∼ 5 orders of magnitude lower. The large luminosity difference is commonly explained by hypothesizing that either SNe ...
متن کاملGravitational Waves and Gamma-Rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
On 2017 August 17, the gravitational-wave event GW170817 was observed by the Advanced LIGO and Virgo detectors, and the gamma-ray burst (GRB) GRB170817A was observed independently by the Fermi Gamma-ray Burst Monitor, and the Anti-Coincidence Shield for the Spectrometer for the International Gamma-Ray Astrophysics Laboratory. The probability of the near-simultaneous temporal and spatial observ...
متن کاملOptical emission from GRB 050709: a short/hard GRB in a star-forming galaxy
We present optical observations of the short/hard gamma-ray burst GRB 050709, the first such event with an identified optical counterpart. The object is coincident with a weak X-ray source and is located inside a galaxy at redshift z = 0.1606 ± 0.0002. Multiband photometry allowed us to study the broad-band spectral energy distribution. Late-time monitoring places strong limits on any supernova...
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ژورنال
عنوان ژورنال: Research in Astronomy and Astrophysics
سال: 2018
ISSN: 1674-4527
DOI: 10.1088/1674-4527/18/4/43