The Interplanetary Network Supplement to the BeppoSAX Gamma-Ray Burst Catalogs

arXiv:1004.1650v1 [astro-ph.HE] 9 Apr 2010 The Interplanetary Network Supplement to the BeppoSAX Gamma-Ray Burst Catalogs K. Hurley Space Sciences Laboratory, University of California, 7 Gauss Way, Berkeley, CA 94720-7450, U.S.A. khurley@ssl.berkeley.edu C. Guidorzi, F. Frontera1, E. Montanari2, F. Rossi University of Ferrara, Physics Department, Via Saragat, 1, 44100 Ferrara, Italy M. Feroci INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica, via Fosso del Cavaliere, Rome, I-00133, Italy E. Mazets, S. Golenetskii, D. D. Frederiks, V. D. Pal’shin, R. L. Aptekar Ioffe Physico-Technical Institute of the Russian Academy of Sciences, St. Petersburg, 194021, Russian Federation T. Cline3, J. Trombka, T. McClanahan, R. Starr NASA Goddard Space Flight Center, Greenbelt, MD 20771, U.S.A. J.-L. Atteia, C. Barraud, A. P´elangeon Laboratoire d’Astrophysique, Observatoire Midi-Pyr´er´ees, 14 avenue E. Belin, 31400 Toulouse, France 1INAF/Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, via Gobetti 101, I-40129 Bologna, Italy 2Istituto IS Calvi, Finale Emilia (MO), Italy 3Emeritus – 2 – M. Bo¨er Observatoire de Haute-Provence, 04870 Saint Michel l’Observatoire, France R. Vanderspek, G. Ricker Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 70 Vassar Street, Cambridge, MA 02139, U.S.A. I. G. Mitrofanov, D. V. Golovin, A. S. Kozyrev, M. L. Litvak, A. B. Sanin Space Research Institute, 84/32, Profsoyuznaya, Moscow 117997, Russian Federation W. Boynton, C. Fellows, K. Harshman University of Arizona, Department of Planetary Sciences, Tucson, Arizona 85721, U.S.A. J. Goldsten, R. Gold Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723, U.S.A. D.M. Smith Physics Department and Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, Santa Cruz, CA 95064, U.S.A. C. Wigger, W. Hajdas Paul Scherrer Institute, 5232 Villigen PSI, Switzerland Received ; accepted – 3 – Date: 8 April 2010 1. Introduction Between 1996 July and 2002 April, the Wide Field X-Ray Camera (WFC) and Gamma-Ray Burst Monitor (GRBM) aboard the BeppoSAX mission detected 62 and 1092 cosmic gamma-ray bursts, respectively, and localized many of them to accuracies which ranged from arcminutes to tens of degrees (Vetere et al. 2007; Frontera et al. 2009); instrument descriptions may be found in Feroci et al. (1997), Frontera et al. (1997), and Jager et al. (1997). These detections were used to initiate searches through the data of the spacecraft comprising the interplanetary network (IPN). In 475 cases localizations could be obtained by triangulation, and successful multiwavelength counterpart searches were initiated for some of them. The IPN contained between 4 and 6 spacecraft during this period. They were, in addition to BeppoSAX : Ulysses, in heliocentric orbit at distances between 670 and 3180 light-seconds from Earth (Hurley et al. 1992); Konus-Wind , in various orbits up to around 4 light-seconds from Earth (Aptekar et al. 1995); HETE-II - FREGATE , in low Earth orbit (Ricker et al. 2003; Atteia et al. 2003); the Near-Earth Asteroid Rendezvous mission (NEAR), at distances up to 1300 light-seconds from Earth (Trombka et al. 1999); Mars Odyssey, launched in 2001 April and in orbit around Mars starting in 2001 October, up to 1250 light-seconds from Earth (Hurley et al. 2006a); the Compton Gamma-Ray Observatory (the Burst and Transient Source Experiment, BATSE - Fishman et al. (1992); and the Ramaty High Energy Solar Spectroscopic Imager (RHESSI) both in low Earth orbit (Smith et al. 2002). Their timelines are presented in figure 1. In this paper, we present the localization data obtained by the IPN for these bursts. At least three other spacecraft recorded GRB detections during this period, although they were not used for triangulation and therefore were not, strictly speaking, part of the – 4 – IPN. The Rossi X-Ray Timing Explorer (RXTE) All Sky Monitor detected and localized some BeppoSAX bursts (Smith et al. 1999). It operated in the low energy X-ray range, where the light curves of gamma-ray bursts differ significantly from the high energy range where the other IPN instruments operate. The Defense Meteorological Satellite Program (DMSP) (Terrell et al. 1996, 1998, 2004) and the Stretched Rohini Satellite Series (SROSS) (Marar et al. 1994) spacecraft detected, but did not localize bursts. 2. Observations For each gamma-ray burst detected by BeppoSAX , a search was initiated in the data of the IPN spacecraft. For the spacecraft within a few light-seconds of Earth, the search window was centered on the BeppoSAX trigger time, and its duration was somewhat greater than the event duration. For the spacecraft at interplanetary distances, the search window was twice the light-travel time to the spacecraft if the event arrival direction was unknown, which was the case for most events. If the arrival direction was known, even coarsely, the search window was defined by cal

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