Spectral properties of the prompt X-ray emission and afterglow from the gamma-ray burst of 1997 February 28

被引:67
作者
Frontera, F
Costa, E
Piro, L
Muller, JM
Amati, L
Feroci, M
Fiore, F
Pizzichini, G
Tavani, M
Castro-Tirado, A
Cusumano, G
Dal Fiume, D
Heise, J
Hurley, K
Nicastro, L
Orlandini, M
Owens, A
Palazzi, E
Parmar, AN
Zand, JI
Zavattini, G
机构
[1] CNR, Ist Tecnol & Studio Radiaz Extraterr, I-40129 Bologna, Italy
[2] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy
[3] CNR, Ist Astrofis Spaziale, I-00044 Frascati, Italy
[4] Space Res Org Netherlands, NL-3584 CA Utrecht, Netherlands
[5] BeppoSAX Sci Data Ctr, I-00131 Rome, Italy
[6] CNR, Ist Fis Cosm & Tecnol Relat, I-20133 Milan, Italy
[7] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA
[8] Lab Astrofis Espacial & Fis Fundamental, Madrid 28080, Spain
[9] CNR, Ist Fis Cosm & Applicaz Informat, I-90146 Palermo, Italy
[10] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA
[11] European Space Agcy, Estec, Dept Space Sci, Div Astrophys, NL-2200 AG Noordwijk, Netherlands
关键词
gamma rays; bursts; observations; stars; neutron; X-rays; general;
D O I
10.1086/311132
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report high-energy spectral data of the prompt emission of GRB 970228 and its X-ray afterglow. We establish that the nature of the X-ray afterglow emission is nonthermal and similar to the later portion of GRB 970228. Our data can be used to discriminate different emission models of GRB afterglows. While cooling of excited compact objects can be ruled out, fireball models are constrained in the physics of the radiation emission processes and their evolution.
引用
收藏
页码:L67 / L70
页数:4
相关论文
共 23 条
[1]   BeppoSAX GRBM on-ground calibrations data analysis [J].
Amati, L ;
Cinti, MN ;
Feroci, M ;
Costa, E ;
Frontera, F ;
DalFiume, D ;
Collina, P ;
Nicastro, L ;
Orlandini, M ;
Palazzi, E ;
Rapisarda, M ;
Zavattini, G .
EUX, X-RAY, AND GAMMA-RAY INSTRUMENTATION FOR ASTRONOMY VIII, 1997, 3114 :176-185
[2]   BATSE OBSERVATIONS OF GAMMA-RAY BURST SPECTRA .1. SPECTRAL DIVERSITY [J].
BAND, D ;
MATTESON, J ;
FORD, L ;
SCHAEFER, B ;
PALMER, D ;
TEEGARDEN, B ;
CLINE, T ;
BRIGGS, M ;
PACIESAS, W ;
PENDLETON, G ;
FISHMAN, G ;
KOUVELIOTOU, C ;
MEEGAN, C ;
WILSON, R ;
LESTRADE, P .
ASTROPHYSICAL JOURNAL, 1993, 413 (01) :281-292
[3]   BeppoSAX, the wide band mission for X-ray astronomy [J].
Boella, G ;
Butler, RC ;
Perola, GC ;
Piro, L ;
Scarsi, L ;
Bleeker, JAM .
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1997, 122 (02) :299-307
[4]   Discovery of an X-ray afterglow associated with the gamma-ray burst of 28 February 1997 [J].
Costa, E ;
Frontera, F ;
Heise, J ;
Feroci, M ;
Zand, JI ;
Fiore, F ;
Cinti, MN ;
DalFiume, D ;
Nicastro, L ;
Orlandini, M ;
Palazzi, E ;
Rapisarda, M ;
Zavattini, G ;
Jager, R ;
Parmar, A ;
Owens, A ;
Molendi, S ;
Cusumano, G ;
Maccarone, MC ;
Giarrusso, S ;
Coletta, A ;
Antonelli, LA ;
Giommi, P ;
Muller, JM ;
Piro, L ;
Butler, RC .
NATURE, 1997, 387 (6635) :783-785
[5]  
Costa E, 1997, 6572 IAU
[6]   In-flight performances of the BeppoSAX gamma-ray burst monitor [J].
Feroci, M ;
Frontera, F ;
Costa, E ;
DalFiume, D ;
Amati, L ;
Bruca, L ;
Cinti, MN ;
Coletta, A ;
Collina, P ;
Guidorzi, C ;
Nicastro, L ;
Orlandini, M ;
Palazzi, E ;
Rapisarda, M ;
Zavattini, G ;
Butler, RC .
EUX, X-RAY, AND GAMMA-RAY INSTRUMENTATION FOR ASTRONOMY VIII, 1997, 3114 :186-197
[7]   BATSE OBSERVATIONS OF GAMMA-RAY BURST SPECTRA .2. PEAK ENERGY EVOLUTION IN BRIGHT, LONG BURSTS [J].
FORD, LA ;
BAND, DL ;
MATTESON, JL ;
BRIGGS, MS ;
PENDLETON, GN ;
PREECE, RD ;
PACIESAS, WS ;
TEEGARDEN, BJ ;
PALMER, DM ;
SCHAEFER, BE ;
CLINE, TL ;
FISHMAN, GJ ;
KOUVELIOTOU, C ;
MEEGAN, CA ;
WILSON, RB ;
LESTRADE, JP .
ASTROPHYSICAL JOURNAL, 1995, 439 (01) :307-321
[8]   The high energy instrument PDS on-board the BeppoSAX X-ray astronomy satellite [J].
Frontera, F ;
Costa, E ;
DalFiume, D ;
Feroci, M ;
Nicastro, L ;
Orlandini, M ;
Palazzi, E ;
Zavattini, G .
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1997, 122 (02) :357-369
[9]  
FRONTERA F, 1997, UNPUB
[10]  
FRONTERA F, 1997, 6637 IAU