The warm, the excited, and the molecular gas: GRB 121024A shining through its star-forming galaxy

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dc.contributor.authorFriis, M.
dc.contributor.authorDe Cia, A.
dc.contributor.authorKruehler, T.
dc.contributor.authorFynbo, J. P. U.
dc.contributor.authorLedoux, C.
dc.contributor.authorVreeswijk, P. M.
dc.contributor.authorWatson, D. J.
dc.contributor.authorMalesani, D.
dc.contributor.authorGorosabel, J.
dc.contributor.authorStarling, R. L. C.
dc.contributor.authorJakobsson, P.
dc.contributor.authorVarela, K.
dc.contributor.authorWiersema, K.
dc.contributor.authorDrachmann, A. P.
dc.contributor.authorTrotter, A.
dc.contributor.authorThoene, C. C.
dc.contributor.authorde Ugarte Postigo, A.
dc.contributor.authorD'Elia, V.
dc.contributor.authorElliott, J.
dc.contributor.authorMaturi, M.
dc.contributor.authorGoldoni, P.
dc.contributor.authorGreiner, J.
dc.contributor.authorHaislip, J.
dc.contributor.authorKaper, L.
dc.contributor.authorKnust, F.
dc.contributor.authorLaCluyze, A.
dc.contributor.authorMilvang Jensen, B.
dc.contributor.authorReichart, D.
dc.contributor.authorSchulze, S.
dc.contributor.authorSudilovsky, V.
dc.contributor.authorTanvir, N.
dc.contributor.authorVergani, S. D.
dc.date.accessioned2024-01-10T12:10:05Z
dc.date.available2024-01-10T12:10:05Z
dc.date.issued2015
dc.description.abstractWe present the first reported case of the simultaneous metallicity determination of a gamma- ray burst (GRB) host galaxy, from both afterglow absorption lines as well as strong emission- line diagnostics. Using spectroscopic and imaging observations of the afterglow and host of the long- duration Swift GRB 121024A at z = 2.30, we give one of the most complete views of a GRB host/ environment to date. We observe a strong damped Lya absorber (DLA) with a hydrogen column density of log N(H i) = 21.88 +/- 0.10, H-2 absorption in the Lyman- Werner bands (molecular fraction of log(f) approximate to- 1.4; fourth solid detection of molecular hydrogen in a GRB- DLA), the nebular emission lines H alpha, H beta, [OII], [O III] and [N II], as well as metal absorption lines. We find aGRB host galaxy that is highly star forming (SFR similar to 40M circle dot yr(-1)), with a dust- corrected metallicity along the line of sight of [Zn/ H](corr) =- 0.6 +/- 0.2 ([O/H]similar to- 0.3 from emission lines), and a depletion factor [Zn/ Fe] = 0.85 +/- 0.04. The molecular gas is separated by 400 km s(-1) (and 1-3 kpc) from the gas that is photoexcited by the GRB. This implies a fairly massive host, in agreement with the derived stellar mass of log(M*/M-circle dot) = 9.9(-0.3)(+0.2). We dissect the host galaxy by characterizing its molecular component, the excited gas, and the line- emitting star- forming regions. The extinction curve for the line of sight is found to be unusually flat (R-V similar to 15). We discuss the possibility of an anomalous grain size distributions. We furthermore discuss the different metallicity determinations from both absorption and emission lines, which gives consistent results for the line of sight to GRB 121024A.
dc.description.funderUniversity of Iceland Research fund
dc.description.funderWeizmann Institute of Science Dean of Physics Fellowship
dc.description.funderKoshland Center for Basic Research
dc.description.funderDNRF
dc.description.funderRoyal Society Dorothy Hodgkin Fellowship
dc.description.funderERC-StG grant
dc.description.funderRamon y Cajal fellowship
dc.description.funderSpanish research project
dc.description.funderEuropean Commission
dc.description.funderCONICYT-Chile FONDECYT
dc.description.funderBasal-CATA
dc.description.funder'Millennium Institute of Astrophysics (MAS)' of Iniciativa Cientifica Milenio del Ministerio de Economia, Fomento y Turismo
dc.description.funderLeibniz-Prize (DFG grant)
dc.description.funderScience and Technology Facilities Council
dc.description.funderDirect For Mathematical & Physical Scien
dc.fechaingreso.objetodigital2024-04-29
dc.format.extent17 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1093/mnras/stv960
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stv960
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76548
dc.identifier.wosidWOS:000360827800014
dc.information.autorucFísica;Schulze S;S/I;237742
dc.issue.numero1
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final183
dc.pagina.inicio167
dc.publisherOXFORD UNIV PRESS
dc.revistaMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
dc.rightsacceso restringido
dc.subjectgamma-ray burst: individual: GRB 121024A
dc.subjectgalaxies: abundances
dc.subjectGAMMA-RAY BURST
dc.subjectMASS-METALLICITY RELATION
dc.subjectDAMPED LYMAN
dc.subjectAFTERGLOW SPECTROSCOPY
dc.subjectCHEMICAL-COMPOSITION
dc.subjectINTERSTELLAR-MEDIUM
dc.subjectEXTINCTION CURVES
dc.subjectSOLAR-METALLICITY
dc.subjectDUST EXTINCTION
dc.subjectABSORPTION-LINE
dc.subject.ods07 Affordable and Clean Energy
dc.subject.odspa07 Energía asequible y no contaminante
dc.titleThe warm, the excited, and the molecular gas: GRB 121024A shining through its star-forming galaxy
dc.typeartículo
dc.volumen451
sipa.codpersvinculados237742
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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