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DC Field | Value | Language |
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dc.contributor.author | Paredes i Poy, Josep Maria | - |
dc.contributor.author | Ribó Gomis, Marc | - |
dc.contributor.author | Bosch i Ramon, Valentí | - |
dc.contributor.author | West, Jennifer R. | - |
dc.contributor.author | Butt, Yousaf M. | - |
dc.contributor.author | Torres, Diego F. | - |
dc.contributor.author | Martí, Josep | - |
dc.date.accessioned | 2020-02-20T08:54:05Z | - |
dc.date.available | 2020-02-20T08:54:05Z | - |
dc.date.issued | 2007-07-11 | - |
dc.identifier.issn | 0004-637X | - |
dc.identifier.uri | http://hdl.handle.net/2445/150798 | - |
dc.description.abstract | We present a 50 ks observation of the gamma-ray binary LS I +61 303 carried out with the ACIS-I array aboard the Chandra X-Ray Observatory. This is the highest resolution X-ray observation of the source conducted so far. Possible evidence of an extended structure at a distance between 5' and 12' toward the north of LS I +61 303 has been found at a significance level of 3.2 σ. The asymmetry of the extended emission excludes an interpretation in the context of a dust-scattered halo, suggesting an intrinsic nature. On the other hand, while the obtained source flux of F0.3-10keV=7.1+1.8-1.4×10-12 ergs cm-2 s-1 and hydrogen column density NH=(0.70+/-0.06)×1022 cm-2 are compatible with previous results, the photon index Γ=1.25+/-0.09 is the hardest ever found. In light of these new results, we briefly discuss the physics behind the X-ray emission, the location of the emitter, and the possible origin of the extended emission ~0.1 pc away from LS I +61 303. | - |
dc.format.extent | 1 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Institute of Physics (IOP) | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1086/520674 | - |
dc.relation.ispartof | Astrophysical Journal, 2007, vol. 664, num. 1, p. L39-L42 | - |
dc.relation.uri | https://doi.org/10.1086/520674 | - |
dc.rights | (c) American Astronomical Society, 2007 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Raigs X | - |
dc.subject.classification | Raigs gamma | - |
dc.subject.classification | Observacions astronòmiques | - |
dc.subject.other | X-rays | - |
dc.subject.other | Gamma rays | - |
dc.subject.other | Astronomical observations | - |
dc.title | Chandra observations of the gamma-ray binary LSI+61303: extended X-ray Structure? | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 551374 | - |
dc.date.updated | 2020-02-20T08:54:06Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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551374.pdf | 100.18 kB | Adobe PDF | View/Open |
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