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Titolo:
DETECTION OF THE NEAR-INFRARED COUNTERPART OF GRB-971214 3.2 HOURS AFTER THE GAMMA-RAY EVENT
Autore:
GOROSABEL J; CASTROTIRADO AJ; WILLOTT CJ; HIPPELEIN H; GREINER J; SHLYAPNIKOV A; GUZIY S; COSTA E; FEROCI M; NICASTRO L; PALAZZI E;
Indirizzi:
INST NACL INVEST AGR,LAEFF,POB 50727 E-28080 MADRID SPAIN CSIC,INST ASTROFIS ANDALUCIA E-18080 GRANADA SPAIN UNIV OXFORD,DEPT PHYS OXFORD OX1 3RH ENGLAND MAX PLANCK INST RADIOASTRON D-69117 HEIDELBERG GERMANY ASTROPHYS INST POTSDAM D-14482 POTSDAM GERMANY NIKOLAEV ASTRON OBSERV,SPACE RES GRP,ASTRON OBSERV UA-327030 NIKOLAYEV UKRAINE NIKOLAEV ASTRON OBSERV UA-327000 NIKOLAYEV UKRAINE CNR,IST ASTROFIS SPAZIALE I-00044 FRASCATI ITALY UNIV FERRARA,DIPARTMENTO FIS I-44100 FERRARA ITALY CNR,IST ASTROFIS SPAZIALE I-00131 ROME ITALY CNR,IST TECNOL & STUDIO RADIAZ EXTRATERR I-40129 BOLOGNA ITALY
Titolo Testata:
Astronomy and astrophysics (Berlin)
fascicolo: 1, volume: 335, anno: 1998,
pagine: 5 - 8
SICI:
0004-6361(1998)335:1<5:DOTNCO>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Keywords:
GAMMA RAYS, BURSTS; METHODS, OBSERVATIONAL;
Tipo documento:
Letter
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
35
Recensione:
Indirizzi per estratti:
Citazione:
J. Gorosabel et al., "DETECTION OF THE NEAR-INFRARED COUNTERPART OF GRB-971214 3.2 HOURS AFTER THE GAMMA-RAY EVENT", Astronomy and astrophysics (Berlin), 335(1), 1998, pp. 5-8

Abstract

We report the detection of the GRB 971214 counterpart in the near-infrared by means of two images in the K'-band taken at Calar Alto only similar to 3.5 and similar to 5 hours after the gamma-ray event. We detect the transient at K' = 18.03 +/- 0.18 and K' = 18.00 +/- 0.22 respectively. Our data seem to indicate ;the existence of a plateau with duration 1.5 less than or equal to T less than or equal to 6.7 hours (between 3.5 and 10.2 hours after the high-energy event). Moreover the power-law decline should be steeper than the one given by the index alpha(K') = 0.45. There is also a change in the slope of the broad-band spectrum at some wavelength between the J and K' bands (possibly around the H-band).

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Documento generato il 18/11/17 alle ore 03:46:32