Multicolor observations of the afterglow of the short/hard GRB 050724

Autores
Malesani, D.; Covino, S.; D'Avanzo, P.; D'Elia, V.; Fugazza, D.; Piranomonte, S.; Ballo, L.; Campana, S.; Stella, L.; Tagliaferri, G.; Antonelli, L. A.; Chincarini, G.; Della Valle, M.; Goldoni, P.; Guidorzi, C.; Israel, G. L.; Lazzati, D.; Melandri, A.; Pellizza González, Leonardo Javier; Romano, P.; Stratta, G.; Vergani, S. D.
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context: New information on short/hard gamma-ray bursts (GRBs) is being gathered thanks to the discovery of their optical and X-ray afterglows. However, some key aspects are still poorly understood, including the collimation level of the outflow, the duration of the central engine activity, and the properties of the progenitor systems. Aims: We want to constrain the physical properties of the short GRB 050724 and of its host galaxy, and make some inferences on the global short GRB population. Methods: We present optical observations of the afterglow of GRB 050724 and of its host galaxy, significantly expanding the existing dataset for this event. We compare our results with models, complementing them with available measurements from the literature. We study the afterglow light curve and spectrum including X-ray data. We also present observations of the host galaxy. Results: The observed optical emission was likely related to the large flare observed in the X-ray light curve. The apparent steep decay was therefore not due to the jet effect. Available data are indeed consistent with low collimation, in turn implying a large energy release, comparable to that of long GRBs. The flare properties also constrain the internal shock mechanism, requiring a large Lorentz factor contrast between the colliding shells. This implies that the central engine was active at late times, rather than ejecting all shells simultaneously. The host galaxy has red colors and no ongoing star formation, consistent with previous findings on this GRB. However, it is not a pure elliptical, and has some faint spiral structure. Conclusions: GRB 050724 provides the most compelling case for association between a short burst and a galaxy with old stellar population. It thus plays a pivotal role in constraining progenitors models, which should allow for long delays between birth and explosion.
Fil: Malesani, D.. Universidad de Copenhagen; Dinamarca
Fil: Covino, S.. Osservatorio Astronomico di Brera; Italia
Fil: D'Avanzo, P.. Osservatorio Astronomico di Brera; Italia
Fil: D'Elia, V.. Osservatorio Astronomico di Roma; Italia
Fil: Fugazza, D.. Osservatorio Astronomico di Brera; Italia
Fil: Piranomonte, S.. Osservatorio Astronomico di Roma; Italia
Fil: Ballo, L.. European Space Agency; España
Fil: Campana, S.. Osservatorio Astronomico di Brera,; Italia
Fil: Stella, L.. Osservatorio Astronomico di Roma; Italia
Fil: Tagliaferri, G.. Osservatorio Astronomico di Brera; Italia
Fil: Antonelli, L. A.. Osservatorio Astronomico di Roma; Italia
Fil: Chincarini, G.. Osservatorio Astronomico di Brera; Italia
Fil: Della Valle, M.. Osservatorio Astrofisico di Arcetri; Italia
Fil: Goldoni, P.. Laboratoire Astroparticule et Cosmologie; Francia
Fil: Guidorzi, C.. Osservatorio Astronomico di Brera; Italia
Fil: Israel, G. L.. Osservatorio Astronomico di Roma; Italia
Fil: Lazzati, D.. State University Of Colorado Boulder; Estados Unidos
Fil: Melandri, A.. Osservatorio Astronomico di Roma; Italia
Fil: Pellizza González, Leonardo Javier. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Romano, P.. Osservatorio Astronomico di Brera; Italia
Fil: Stratta, G.. Science Data Center; Italia
Fil: Vergani, S. D.. Dublin City University; Irlanda
Materia
GAMMA RAYS. BURSTS
GALAXIES: FUNDAMENTAL PARAMETERS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/21213
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Multicolor observations of the afterglow of the short/hard GRB 050724Malesani, D.Covino, S.D'Avanzo, P.D'Elia, V.Fugazza, D.Piranomonte, S.Ballo, L.Campana, S.Stella, L.Tagliaferri, G.Antonelli, L. A.Chincarini, G.Della Valle, M.Goldoni, P.Guidorzi, C.Israel, G. L.Lazzati, D.Melandri, A.Pellizza González, Leonardo JavierRomano, P.Stratta, G.Vergani, S. D.GAMMA RAYS. BURSTSGALAXIES: FUNDAMENTAL PARAMETERShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context: New information on short/hard gamma-ray bursts (GRBs) is being gathered thanks to the discovery of their optical and X-ray afterglows. However, some key aspects are still poorly understood, including the collimation level of the outflow, the duration of the central engine activity, and the properties of the progenitor systems. Aims: We want to constrain the physical properties of the short GRB 050724 and of its host galaxy, and make some inferences on the global short GRB population. Methods: We present optical observations of the afterglow of GRB 050724 and of its host galaxy, significantly expanding the existing dataset for this event. We compare our results with models, complementing them with available measurements from the literature. We study the afterglow light curve and spectrum including X-ray data. We also present observations of the host galaxy. Results: The observed optical emission was likely related to the large flare observed in the X-ray light curve. The apparent steep decay was therefore not due to the jet effect. Available data are indeed consistent with low collimation, in turn implying a large energy release, comparable to that of long GRBs. The flare properties also constrain the internal shock mechanism, requiring a large Lorentz factor contrast between the colliding shells. This implies that the central engine was active at late times, rather than ejecting all shells simultaneously. The host galaxy has red colors and no ongoing star formation, consistent with previous findings on this GRB. However, it is not a pure elliptical, and has some faint spiral structure. Conclusions: GRB 050724 provides the most compelling case for association between a short burst and a galaxy with old stellar population. It thus plays a pivotal role in constraining progenitors models, which should allow for long delays between birth and explosion.Fil: Malesani, D.. Universidad de Copenhagen; DinamarcaFil: Covino, S.. Osservatorio Astronomico di Brera; ItaliaFil: D'Avanzo, P.. Osservatorio Astronomico di Brera; ItaliaFil: D'Elia, V.. Osservatorio Astronomico di Roma; ItaliaFil: Fugazza, D.. Osservatorio Astronomico di Brera; ItaliaFil: Piranomonte, S.. Osservatorio Astronomico di Roma; ItaliaFil: Ballo, L.. European Space Agency; EspañaFil: Campana, S.. Osservatorio Astronomico di Brera,; ItaliaFil: Stella, L.. Osservatorio Astronomico di Roma; ItaliaFil: Tagliaferri, G.. Osservatorio Astronomico di Brera; ItaliaFil: Antonelli, L. A.. Osservatorio Astronomico di Roma; ItaliaFil: Chincarini, G.. Osservatorio Astronomico di Brera; ItaliaFil: Della Valle, M.. Osservatorio Astrofisico di Arcetri; ItaliaFil: Goldoni, P.. Laboratoire Astroparticule et Cosmologie; FranciaFil: Guidorzi, C.. Osservatorio Astronomico di Brera; ItaliaFil: Israel, G. L.. Osservatorio Astronomico di Roma; ItaliaFil: Lazzati, D.. State University Of Colorado Boulder; Estados UnidosFil: Melandri, A.. Osservatorio Astronomico di Roma; ItaliaFil: Pellizza González, Leonardo Javier. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Romano, P.. Osservatorio Astronomico di Brera; ItaliaFil: Stratta, G.. Science Data Center; ItaliaFil: Vergani, S. D.. Dublin City University; IrlandaEDP Sciences2007-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/21213Malesani, D.; Covino, S.; D'Avanzo, P.; D'Elia, V.; Fugazza, D.; et al.; Multicolor observations of the afterglow of the short/hard GRB 050724; EDP Sciences; Astronomy and Astrophysics; 473; 1; 10-2007; 77-840004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20077868info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2007/37/aa7868-07/aa7868-07.htmlinfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/0706.1273info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:42:59Zoai:ri.conicet.gov.ar:11336/21213instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:42:59.536CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Multicolor observations of the afterglow of the short/hard GRB 050724
title Multicolor observations of the afterglow of the short/hard GRB 050724
spellingShingle Multicolor observations of the afterglow of the short/hard GRB 050724
Malesani, D.
GAMMA RAYS. BURSTS
GALAXIES: FUNDAMENTAL PARAMETERS
title_short Multicolor observations of the afterglow of the short/hard GRB 050724
title_full Multicolor observations of the afterglow of the short/hard GRB 050724
title_fullStr Multicolor observations of the afterglow of the short/hard GRB 050724
title_full_unstemmed Multicolor observations of the afterglow of the short/hard GRB 050724
title_sort Multicolor observations of the afterglow of the short/hard GRB 050724
dc.creator.none.fl_str_mv Malesani, D.
Covino, S.
D'Avanzo, P.
D'Elia, V.
Fugazza, D.
Piranomonte, S.
Ballo, L.
Campana, S.
Stella, L.
Tagliaferri, G.
Antonelli, L. A.
Chincarini, G.
Della Valle, M.
Goldoni, P.
Guidorzi, C.
Israel, G. L.
Lazzati, D.
Melandri, A.
Pellizza González, Leonardo Javier
Romano, P.
Stratta, G.
Vergani, S. D.
author Malesani, D.
author_facet Malesani, D.
Covino, S.
D'Avanzo, P.
D'Elia, V.
Fugazza, D.
Piranomonte, S.
Ballo, L.
Campana, S.
Stella, L.
Tagliaferri, G.
Antonelli, L. A.
Chincarini, G.
Della Valle, M.
Goldoni, P.
Guidorzi, C.
Israel, G. L.
Lazzati, D.
Melandri, A.
Pellizza González, Leonardo Javier
Romano, P.
Stratta, G.
Vergani, S. D.
author_role author
author2 Covino, S.
D'Avanzo, P.
D'Elia, V.
Fugazza, D.
Piranomonte, S.
Ballo, L.
Campana, S.
Stella, L.
Tagliaferri, G.
Antonelli, L. A.
Chincarini, G.
Della Valle, M.
Goldoni, P.
Guidorzi, C.
Israel, G. L.
Lazzati, D.
Melandri, A.
Pellizza González, Leonardo Javier
Romano, P.
Stratta, G.
Vergani, S. D.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv GAMMA RAYS. BURSTS
GALAXIES: FUNDAMENTAL PARAMETERS
topic GAMMA RAYS. BURSTS
GALAXIES: FUNDAMENTAL PARAMETERS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Context: New information on short/hard gamma-ray bursts (GRBs) is being gathered thanks to the discovery of their optical and X-ray afterglows. However, some key aspects are still poorly understood, including the collimation level of the outflow, the duration of the central engine activity, and the properties of the progenitor systems. Aims: We want to constrain the physical properties of the short GRB 050724 and of its host galaxy, and make some inferences on the global short GRB population. Methods: We present optical observations of the afterglow of GRB 050724 and of its host galaxy, significantly expanding the existing dataset for this event. We compare our results with models, complementing them with available measurements from the literature. We study the afterglow light curve and spectrum including X-ray data. We also present observations of the host galaxy. Results: The observed optical emission was likely related to the large flare observed in the X-ray light curve. The apparent steep decay was therefore not due to the jet effect. Available data are indeed consistent with low collimation, in turn implying a large energy release, comparable to that of long GRBs. The flare properties also constrain the internal shock mechanism, requiring a large Lorentz factor contrast between the colliding shells. This implies that the central engine was active at late times, rather than ejecting all shells simultaneously. The host galaxy has red colors and no ongoing star formation, consistent with previous findings on this GRB. However, it is not a pure elliptical, and has some faint spiral structure. Conclusions: GRB 050724 provides the most compelling case for association between a short burst and a galaxy with old stellar population. It thus plays a pivotal role in constraining progenitors models, which should allow for long delays between birth and explosion.
Fil: Malesani, D.. Universidad de Copenhagen; Dinamarca
Fil: Covino, S.. Osservatorio Astronomico di Brera; Italia
Fil: D'Avanzo, P.. Osservatorio Astronomico di Brera; Italia
Fil: D'Elia, V.. Osservatorio Astronomico di Roma; Italia
Fil: Fugazza, D.. Osservatorio Astronomico di Brera; Italia
Fil: Piranomonte, S.. Osservatorio Astronomico di Roma; Italia
Fil: Ballo, L.. European Space Agency; España
Fil: Campana, S.. Osservatorio Astronomico di Brera,; Italia
Fil: Stella, L.. Osservatorio Astronomico di Roma; Italia
Fil: Tagliaferri, G.. Osservatorio Astronomico di Brera; Italia
Fil: Antonelli, L. A.. Osservatorio Astronomico di Roma; Italia
Fil: Chincarini, G.. Osservatorio Astronomico di Brera; Italia
Fil: Della Valle, M.. Osservatorio Astrofisico di Arcetri; Italia
Fil: Goldoni, P.. Laboratoire Astroparticule et Cosmologie; Francia
Fil: Guidorzi, C.. Osservatorio Astronomico di Brera; Italia
Fil: Israel, G. L.. Osservatorio Astronomico di Roma; Italia
Fil: Lazzati, D.. State University Of Colorado Boulder; Estados Unidos
Fil: Melandri, A.. Osservatorio Astronomico di Roma; Italia
Fil: Pellizza González, Leonardo Javier. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Romano, P.. Osservatorio Astronomico di Brera; Italia
Fil: Stratta, G.. Science Data Center; Italia
Fil: Vergani, S. D.. Dublin City University; Irlanda
description Context: New information on short/hard gamma-ray bursts (GRBs) is being gathered thanks to the discovery of their optical and X-ray afterglows. However, some key aspects are still poorly understood, including the collimation level of the outflow, the duration of the central engine activity, and the properties of the progenitor systems. Aims: We want to constrain the physical properties of the short GRB 050724 and of its host galaxy, and make some inferences on the global short GRB population. Methods: We present optical observations of the afterglow of GRB 050724 and of its host galaxy, significantly expanding the existing dataset for this event. We compare our results with models, complementing them with available measurements from the literature. We study the afterglow light curve and spectrum including X-ray data. We also present observations of the host galaxy. Results: The observed optical emission was likely related to the large flare observed in the X-ray light curve. The apparent steep decay was therefore not due to the jet effect. Available data are indeed consistent with low collimation, in turn implying a large energy release, comparable to that of long GRBs. The flare properties also constrain the internal shock mechanism, requiring a large Lorentz factor contrast between the colliding shells. This implies that the central engine was active at late times, rather than ejecting all shells simultaneously. The host galaxy has red colors and no ongoing star formation, consistent with previous findings on this GRB. However, it is not a pure elliptical, and has some faint spiral structure. Conclusions: GRB 050724 provides the most compelling case for association between a short burst and a galaxy with old stellar population. It thus plays a pivotal role in constraining progenitors models, which should allow for long delays between birth and explosion.
publishDate 2007
dc.date.none.fl_str_mv 2007-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/21213
Malesani, D.; Covino, S.; D'Avanzo, P.; D'Elia, V.; Fugazza, D.; et al.; Multicolor observations of the afterglow of the short/hard GRB 050724; EDP Sciences; Astronomy and Astrophysics; 473; 1; 10-2007; 77-84
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/21213
identifier_str_mv Malesani, D.; Covino, S.; D'Avanzo, P.; D'Elia, V.; Fugazza, D.; et al.; Multicolor observations of the afterglow of the short/hard GRB 050724; EDP Sciences; Astronomy and Astrophysics; 473; 1; 10-2007; 77-84
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20077868
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2007/37/aa7868-07/aa7868-07.html
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/0706.1273
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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