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Article: Early optical-infrared emission from GRB 041219a: Neutron-rich internal shocks and a mildly magnetized external reverse shock

TitleEarly optical-infrared emission from GRB 041219a: Neutron-rich internal shocks and a mildly magnetized external reverse shock
Authors
Fan, Y. Z.Zhang, BingWei, D. M.
KeywordsGamma rays: bursts
ISM: jets and outflows
Radiation mechanisms: nonthermal
Issue Date2005
Citation
Astrophysical Journal, 2005, v. 628, n. 1 II, p. L25-L28 How to Cite?
DOI: http://dx.doi.org/10.1086/432616
AbstractVery early optical and near-infrared emission was discovered to have accompanied the long gamma-ray burst GRB 041219a. Here we show that the optical-IR flash tracking the gamma-ray light curve during the prompt emission can be understood as emission from neutron-rich internal shocks, as has been suggested by Fan & Wei. The early Ks-band afterglow light curve after the prompt phase can be well modeled as the superposition of a reverse and a forward shock component. The radio data also support the reverse-shock interpretation. © 2005. The American Astronomical Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/360995
ISSN
0004-637X
2023 Impact Factor: 4.8
2023 SCImago Journal Rankings: 1.905

 

DC FieldValueLanguage
dc.contributor.authorFan, Y. Z.-
dc.contributor.authorZhang, Bing-
dc.contributor.authorWei, D. M.-
dc.date.accessioned2025-09-16T04:14:11Z-
dc.date.available2025-09-16T04:14:11Z-
dc.date.issued2005-
dc.identifier.citationAstrophysical Journal, 2005, v. 628, n. 1 II, p. L25-L28-
dc.identifier.issn0004-637X-
dc.identifier.urihttp://hdl.handle.net/10722/360995-
dc.description.abstractVery early optical and near-infrared emission was discovered to have accompanied the long gamma-ray burst GRB 041219a. Here we show that the optical-IR flash tracking the gamma-ray light curve during the prompt emission can be understood as emission from neutron-rich internal shocks, as has been suggested by Fan & Wei. The early K<inf>s</inf>-band afterglow light curve after the prompt phase can be well modeled as the superposition of a reverse and a forward shock component. The radio data also support the reverse-shock interpretation. © 2005. The American Astronomical Society. All rights reserved.-
dc.languageeng-
dc.relation.ispartofAstrophysical Journal-
dc.subjectGamma rays: bursts-
dc.subjectISM: jets and outflows-
dc.subjectRadiation mechanisms: nonthermal-
dc.titleEarly optical-infrared emission from GRB 041219a: Neutron-rich internal shocks and a mildly magnetized external reverse shock-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1086/432616-
dc.identifier.scopuseid_2-s2.0-24644444598-
dc.identifier.volume628-
dc.identifier.issue1 II-
dc.identifier.spageL25-
dc.identifier.epageL28-
dc.identifier.eissn1538-4357-

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