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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/27085
Title: A luminous blue kilonova and an off-axis jet from a compact binary merger at z = 0.1341
Authors: Troja, E.
Ryan, G.
PIRO, LUIGI 
van Eerten, H.
Cenko, S. B.
Yoon, Y.
Lee, S.-K.
Im, M.
Sakamoto, T.
Gatkine, P.
Kutyrev, A.
Veilleux, S.
Issue Date: 2018
Journal: NATURE COMMUNICATIONS 
Number: 9
Issue: 1
First Page: 4089
Abstract: The recent discovery of a gamma-ray burst (GRB) coincident with the gravitational-wave (GW) event GW170817 revealed the existence of a population of low-luminosity short duration gamma-ray transients produced by neutron star mergers in the nearby Universe. These events could be routinely detected by existing gamma-ray monitors, yet previous observations failed to identify them without the aid of GW triggers. Here we show that GRB150101B is an analogue of GRB170817A located at a cosmological distance. GRB150101B is a faint short burst characterized by a bright optical counterpart and a long-lived X-ray afterglow. These properties are unusual for standard short GRBs and are instead consistent with an explosion viewed off-axis: the optical light is produced by a luminous kilonova, while the observed X-rays trace the GRB afterglow viewed at an angle of 13°. Our findings suggest that these properties could be common among future electromagnetic counterparts of GW sources.
URI: http://hdl.handle.net/20.500.12386/27085
URL: https://www.nature.com/articles/s41467-018-06558-7
ISSN: 2041-1723
DOI: 10.1038/s41467-018-06558-7
Bibcode ADS: 2018NatCo...9.4089T
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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