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Titolo: The ASCA catalog of potential X-ray counterparts of GeV sources
Autore: Roberts, MSE; Romani, RW; Kawai, N;
- Indirizzi:
- Stanford Univ, Dept Phys, Stanford, CA 94305 USA Stanford Univ Stanford CA USA 94305 iv, Dept Phys, Stanford, CA 94305 USA RIKEN, Inst Phys & Chem Res, Cosm Radiat Lab, Wako, Saitama 3510198, JapanRIKEN Wako Saitama Japan 3510198 Radiat Lab, Wako, Saitama 3510198, Japan
- Titolo Testata:
- ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
fascicolo: 2,
volume: 133,
anno: 2001,
parte:, 1
pagine: 451 - 465
- SICI:
- 0067-0049(20010413)133:2<451:TACOPX>2.0.ZU;2-P
- Fonte:
- ISI
- Lingua:
- ENG
- Soggetto:
- UNIDENTIFIED EGRET SOURCE; SUPERNOVA REMNANT W44; PSR B1853+01; GAMMA-RAYS; EMISSION; PULSAR; ACCELERATION; BINARIES; NEBULA; STARS;
- Keywords:
- gamma rays : observations; pulsars : general; stars : Wolf-Rayet; supernova remnants; X-rays;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Physical, Chemical & Earth Sciences
- Citazioni:
- 53
- Recensione:
- Indirizzi per estratti:
- Indirizzo: Roberts, MSE McGill Univ, Dept Phys, 3600 Univ St, Montreal, PQ H3A 2T8, Canada McGill Univ 3600 Univ St Montreal PQ Canada H3A 2T8 8, Canada
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- Citazione:
- M.S.E. Roberts et al., "The ASCA catalog of potential X-ray counterparts of GeV sources", ASTROPH J S, 133(2), 2001, pp. 451-465
Abstract
We present a catalog of 2-10 keV ASCA Gas Imaging Spectrometer images of fields containing bright sources of GeV emission. The images cover similar to 85% of the 95% confidence position contour for 28 of the 30 sources with >1 GeV fluxes above 4 x 10(-8) ph cm(-2) s(-1). We find an excess of hard X-ray sources with F2-10keV greater than or similar to 10(-12) ergs cm(-2) s(-1) positionally coincident with unidentified sources of GeV emission. We comment on radio-loud and radio-quiet pulsar candidates, as well as severalSNRs and massive binaries as possible sources of the GeV emission. We alsofind evidence for a class of variable gamma -ray sources associated with extended regions of hard X-ray emission, and propose that for these sources,a significant percentage of the gamma -ray emission is generated in synchrotron nebulae surrounding fast, young pulsars.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/05/13 alle ore 23:52:16