GRB 160410A: The first chemical study of the interstellar medium of a short GRB
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GRB 160410A : The first chemical study of the interstellar medium of a short GRB. / Fernandez, J. F. Aguei; Thone, C. C.; Kann, D. A.; Postigo, A. de Ugarte; Selsing, J.; Schady, P.; Yates, R. M.; Greiner, J.; Oates, S. R.; Malesani, D. B.; Xu, D.; Klotz, A.; Campana, S.; Rossi, A.; Perley, D. A.; Blazek, M.; D'Avanzo, P.; Giunta, A.; Hartmann, D.; Heintz, K. E.; Jakobsson, P.; Kirkpatrick, C. C.; Kouveliotou, C.; Melandri, A.; Pugliese, G.; Salvaterra, R.; Starling, R. L. C.; Tanvir, N. R.; Vergani, S. D.; Wiersema, K.
I: Monthly Notices of the Royal Astronomical Society, Bind 520, Nr. 1, 28.01.2023, s. 613-636.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - GRB 160410A
T2 - The first chemical study of the interstellar medium of a short GRB
AU - Fernandez, J. F. Aguei
AU - Thone, C. C.
AU - Kann, D. A.
AU - Postigo, A. de Ugarte
AU - Selsing, J.
AU - Schady, P.
AU - Yates, R. M.
AU - Greiner, J.
AU - Oates, S. R.
AU - Malesani, D. B.
AU - Xu, D.
AU - Klotz, A.
AU - Campana, S.
AU - Rossi, A.
AU - Perley, D. A.
AU - Blazek, M.
AU - D'Avanzo, P.
AU - Giunta, A.
AU - Hartmann, D.
AU - Heintz, K. E.
AU - Jakobsson, P.
AU - Kirkpatrick, C. C.
AU - Kouveliotou, C.
AU - Melandri, A.
AU - Pugliese, G.
AU - Salvaterra, R.
AU - Starling, R. L. C.
AU - Tanvir, N. R.
AU - Vergani, S. D.
AU - Wiersema, K.
PY - 2023/1/28
Y1 - 2023/1/28
N2 - Short gamma-ray bursts (SGRBs) are produced by the coalescence of compact binary systems which are remnants of massive stars. GRB 160410A is classified as a short-duration GRB with extended emission and is currently the farthest SGRB with a redshift determined from an afterglow spectrum and also one of the brightest SGRBs to date. The fast reaction to the Neil Gehrels Swift Observatory alert allowed us to obtain a spectrum of the afterglow using the X-shooter spectrograph at the Very Large Telescope (VLT). The spectrum shows several absorption features at a redshift of z = 1.7177, in addition, we detect two intervening systems at z = 1.581 and z = 1.444. The spectrum shows Ly alpha in absorption with a column density of log (N(H i)/cm(2)) = 21.2 +/- 0.2 which, together with Fe ii, C ii, Si ii, Al ii, and O i, allow us to perform the first study of chemical abundances in a SGRB host galaxy. We determine a metallicity of [X/H] = -2.3 +/- 0.2 for Fe ii and -2.5 +/- 0.2 for Si ii and no dust depletion. We also find no evidence for extinction in the afterglow spectral energy distribution modelling. The environment has a low degree of ionization and the C iv and Si iv lines are completely absent. We do not detect an underlying host galaxy down to deep limits. Additionally, we compare GRB 160410A to GRB 201221D, another high-z short GRB that shows absorption lines at z = 1.045 and an underlying massive host galaxy.
AB - Short gamma-ray bursts (SGRBs) are produced by the coalescence of compact binary systems which are remnants of massive stars. GRB 160410A is classified as a short-duration GRB with extended emission and is currently the farthest SGRB with a redshift determined from an afterglow spectrum and also one of the brightest SGRBs to date. The fast reaction to the Neil Gehrels Swift Observatory alert allowed us to obtain a spectrum of the afterglow using the X-shooter spectrograph at the Very Large Telescope (VLT). The spectrum shows several absorption features at a redshift of z = 1.7177, in addition, we detect two intervening systems at z = 1.581 and z = 1.444. The spectrum shows Ly alpha in absorption with a column density of log (N(H i)/cm(2)) = 21.2 +/- 0.2 which, together with Fe ii, C ii, Si ii, Al ii, and O i, allow us to perform the first study of chemical abundances in a SGRB host galaxy. We determine a metallicity of [X/H] = -2.3 +/- 0.2 for Fe ii and -2.5 +/- 0.2 for Si ii and no dust depletion. We also find no evidence for extinction in the afterglow spectral energy distribution modelling. The environment has a low degree of ionization and the C iv and Si iv lines are completely absent. We do not detect an underlying host galaxy down to deep limits. Additionally, we compare GRB 160410A to GRB 201221D, another high-z short GRB that shows absorption lines at z = 1.045 and an underlying massive host galaxy.
KW - gamma-ray burst: individual: GRB 160410A
KW - gamma-ray burst: individual: GRB 201221D
KW - galaxies: ISM
KW - neutron star mergers
KW - GAMMA-RAY BURST
KW - DAMPED LY-ALPHA
KW - COMPACT OBJECT MERGERS
KW - HOST GALAXIES
KW - STAR-FORMATION
KW - X-RAY
KW - GRAVITATIONAL-WAVES
KW - RADIO OBSERVATIONS
KW - TIME DISTRIBUTION
KW - REVERSE SHOCK
U2 - 10.1093/mnras/stad099
DO - 10.1093/mnras/stad099
M3 - Journal article
VL - 520
SP - 613
EP - 636
JO - Royal Astronomical Society. Monthly Notices
JF - Royal Astronomical Society. Monthly Notices
SN - 0035-8711
IS - 1
ER -
ID: 341012656