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Titolo:
The very red afterglow of GRB 000418: Further evidence for dust extinctionin a gamma-ray burst host galaxy
Autore:
Klose, S; Stecklum, B; Masetti, N; Pian, E; Palazzi, E; Henden, AA; Hartmann, DH; Fischer, O; Gorosabel, J; Sanchez-Fernandez, C; Butler, D; Ott, T; Hippler, S; Kasper, M; Weiss, R; Castro-Tirado, A; Greiner, J; Bartolini, C; Guarnieri, A; Piccioni, A; Benetti, S; Ghinassi, F; Magazzu, A; Hurley, K; Cline, T; Trombka, J; McClanahan, T; Starr, R; Goldstein, J; Gold, R; Mazets, E; Golenetskii, S; Noeske, K; Papaderos, P; Vreeswijk, PM; Tanvir, N; Oscoz, A; Munoz, JA; Ceron, JMC;
Indirizzi:
Thuringer Landessternwarte Tautenburg, D-07778 Tautenburg, Germany Thuringer Landessternwarte Tautenburg Tautenburg Germany D-07778 Germany CNR, Ist Tecnol & Studio Radiaz Extraterr, I-40129 Bologna, Italy CNR Bologna Italy I-40129 tudio Radiaz Extraterr, I-40129 Bologna, Italy US Naval Observ, Flagstaff Stn, Flagstaff, AZ 86002 USA US Naval Observ Flagstaff AZ USA 86002 staff Stn, Flagstaff, AZ 86002 USA Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA Clemson Univ Clemson SC USA 29634 pt Phys & Astron, Clemson, SC 29634 USA Inst Astrophys, D-07745 Jena, Germany Inst Astrophys Jena Germany D-07745 nst Astrophys, D-07745 Jena, Germany Univ Sternwarte, D-07745 Jena, Germany Univ Sternwarte Jena Germany D-07745 v Sternwarte, D-07745 Jena, Germany Danish Space Res Inst, DK-2100 Copenhagen, Denmark Danish Space Res Inst Copenhagen Denmark DK-2100 100 Copenhagen, Denmark CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain CSIC Granada SpainE-18080 st Astrofis Andalucia, E-18080 Granada, Spain Astrophys Inst Potsdam, D-14482 Potsdam, Germany Astrophys Inst Potsdam Potsdam Germany D-14482 D-14482 Potsdam, Germany Univ Bologna, Dipartmento Astron, I-40127 Bologna, Italy Univ Bologna Bologna Italy I-40127 tmento Astron, I-40127 Bologna, Italy Ctr Galileo Galilei, Telescopio Nazl Galileo, E-38700 Santa Cruz La Palma,Canary Isl, Spain Ctr Galileo Galilei Santa Cruz La Palma Canary Isl SpainE-38700 l, Spain INTA, LAEFF, E-28080 Madrid, Spain INTA Madrid Spain E-28080INTA, LAEFF, E-28080 Madrid, Spain Max Planck Inst Astron, D-69117 Heidelberg, Germany Max Planck Inst Astron Heidelberg Germany D-69117 17 Heidelberg, Germany Max Planck Inst Extraterr Phys, D-85748 Garching, Germany Max Planck Inst Extraterr Phys Garching Germany D-85748 arching, Germany Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA Univ Calif Berkeley Berkeley CA USA 94720 Sci Lab, Berkeley, CA 94720 USA NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA NASA Greenbelt MDUSA 20771 ard Space Flight Ctr, Greenbelt, MD 20771 USA Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA Johns Hopkins Univ Laurel MD USA 20723 ppl Phys Lab, Laurel, MD 20723 USA AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia AF Ioffe Phys Tech Inst St Petersburg Russia 194021 sburg 194021, Russia Univ Sternwarte, D-37083 Gottingen, Germany Univ Sternwarte Gottingen Germany D-37083 te, D-37083 Gottingen, Germany Astron Inst Anton Pannekoehk, NL-1098 SJ Amsterdam, Netherlands Astron Inst Anton Pannekoehk Amsterdam Netherlands NL-1098 SJ etherlands Joint Astron Ctr, Hilo, HI 96720 USA Joint Astron Ctr Hilo HI USA 96720Joint Astron Ctr, Hilo, HI 96720 USA Inst Astrofis Canarias, Tenerife, Spain Inst Astrofis Canarias Tenerife Spain strofis Canarias, Tenerife, Spain San Fernando Naval, Real Observ Armada, Cadiz, Spain San Fernando Naval Cadiz Spain Naval, Real Observ Armada, Cadiz, Spain
Titolo Testata:
ASTROPHYSICAL JOURNAL
fascicolo: 1, volume: 545, anno: 2000,
parte:, 1
pagine: 271 - 276
SICI:
0004-637X(200012)545:1<271:TVRAOG>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
14 DECEMBER 1997; OPTICAL AFTERGLOW; X-RAY; INTERSTELLAR EXTINCTION; FIREBALL MODEL; GRB-970508; ENVIRONMENT; COUNTERPART; GRB-990123; REDSHIFT;
Keywords:
gamma rays : bursts;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
70
Recensione:
Indirizzi per estratti:
Indirizzo: Klose, S Thuringer Landessternwarte Tautenburg, D-07778 Tautenburg, Germany Thuringer Landessternwarte Tautenburg Tautenburg Germany D-07778
Citazione:
S. Klose et al., "The very red afterglow of GRB 000418: Further evidence for dust extinctionin a gamma-ray burst host galaxy", ASTROPHYS J, 545(1), 2000, pp. 271-276

Abstract

We report near-infrared and optical follow-up observations of the afterglow of the GRB 000418 starting 2.5 days after the occurrence of the burst andextending over nearly 7 weeks. GRB 000418 represents the second case for which the afterglow was initially identified by observations in the near-infrared. During the first 10 days its R-band afterglow was well characterizedby a single power-law decay with a slope of 0.86. However, at later times the temporal evolution of the afterglow flattens with respect to a simple power-law decay. Attributing this to an underlying host galaxy, we find its magnitude to be R = 23.9 and an intrinsic afterglow decay slope of 1.22. The afterglow was very red with R-K approximate to 4 mag. The observations can be explained by an adiabatic, spherical fireball solution and a heavy reddening due to dust extinction in the host galaxy. This supports the picturethat (long) bursts are associated with events in star-forming regions.

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Documento generato il 18/11/17 alle ore 03:45:42