Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28826
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lamb, G. P. | en_US |
dc.contributor.author | Tanvir, N. R. | en_US |
dc.contributor.author | Levan, A. J. | en_US |
dc.contributor.author | de Ugarte Postigo, A. | en_US |
dc.contributor.author | Kawaguchi, K. | en_US |
dc.contributor.author | Corsi, A. | en_US |
dc.contributor.author | Evans, P. A. | en_US |
dc.contributor.author | Gompertz, B. | en_US |
dc.contributor.author | Malesani, D. B. | en_US |
dc.contributor.author | Page, K. L. | en_US |
dc.contributor.author | Wiersema, K. | en_US |
dc.contributor.author | Rosswog, S. | en_US |
dc.contributor.author | Shibata, M. | en_US |
dc.contributor.author | Tanaka, M. | en_US |
dc.contributor.author | van der Horst, A. J. | en_US |
dc.contributor.author | Cano, Z. | en_US |
dc.contributor.author | Fynbo, J. P. U. | en_US |
dc.contributor.author | Fruchter, A. S. | en_US |
dc.contributor.author | Greiner, J. | en_US |
dc.contributor.author | Heintz, K. E. | en_US |
dc.contributor.author | Higgins, A. | en_US |
dc.contributor.author | Hjorth, J. | en_US |
dc.contributor.author | Izzo, L. | en_US |
dc.contributor.author | Jakobsson, P. | en_US |
dc.contributor.author | Kann, D. A. | en_US |
dc.contributor.author | O'Brien, P. T. | en_US |
dc.contributor.author | Perley, D. A. | en_US |
dc.contributor.author | PIAN, Elena | en_US |
dc.contributor.author | Pugliese, G. | en_US |
dc.contributor.author | Starling, R. L. C. | en_US |
dc.contributor.author | Thöne, C. C. | en_US |
dc.contributor.author | Watson, D. | en_US |
dc.contributor.author | Wijers, R. A. M. J. | en_US |
dc.contributor.author | Xu, D. | en_US |
dc.date.accessioned | 2020-12-14T12:05:38Z | - |
dc.date.available | 2020-12-14T12:05:38Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28826 | - |
dc.description.abstract | We report our identification of the optical afterglow and host galaxy of the short-duration gamma-ray burst sGRB 160821B. The spectroscopic redshift of the host is z = 0.162, making it one of the lowest redshift short-duration gamma-ray bursts (sGRBs) identified by Swift. Our intensive follow-up campaign using a range of ground-based facilities as well as Hubble Space Telescope, XMM-Newton, and Swift, shows evidence for a late-time excess of optical and near-infrared emission in addition to a complex afterglow. The afterglow light curve at X-ray frequencies reveals a narrow jet, {θ }<SUB>j</SUB>∼ {1.9}<SUB>-0.03</SUB><SUP>+0.10</SUP> deg, that is refreshed at >1 day post-burst by a slower outflow with significantly more energy than the initial outflow that produced the main GRB. Observations of the 5 GHz radio afterglow shows a reverse shock into a mildly magnetized shell. The optical and near-infrared excess is fainter than AT2017gfo associated with GW170817, and is well explained by a kilonova with dynamic ejecta mass M <SUB>dyn</SUB> = (1.0 ± 0.6) × 10<SUP>-3</SUP> M <SUB>☉</SUB> and a secular (post-merger) ejecta mass with M <SUB>pm</SUB> = (1.0 ± 0.6) × 10<SUP>-2</SUP> M <SUB>☉</SUB>, consistent with a binary neutron star merger resulting in a short-lived massive neutron star. This optical and near-infrared data set provides the best-sampled kilonova light curve without a gravitational wave trigger to date. | en_US |
dc.language.iso | eng | en_US |
dc.title | Short GRB 160821B: A Reverse Shock, a Refreshed Shock, and a Well-sampled Kilonova | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/ab38bb | en_US |
dc.identifier.scopus | 2-s2.0-85073068225 | en_US |
dc.identifier.isi | 000487114100005 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/ab38bb | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 883 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 48 | en_US |
dc.type.referee | REF_1 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2019ApJ...883...48L | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0001-8646-4858 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Lamb_2019_ApJ_883_48_GRB160821B.pdf | Pdf editoriale | 1.44 MB | Adobe PDF | View/Open |
Page view(s)
29
checked on Apr 19, 2024
Download(s)
8
checked on Apr 19, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.