| dc.creator |
Sierpowska-Bartosik, Agnieszka |
|
| dc.creator |
Torres, Diego F. |
|
| dc.date |
2008-06-29T14:33:31Z |
|
| dc.date |
2008-06-29T14:33:31Z |
|
| dc.date |
2008-01-22 |
|
| dc.date.accessioned |
2017-01-31T02:13:32Z |
|
| dc.date.available |
2017-01-31T02:13:32Z |
|
| dc.identifier |
The Astrophysical Journal Letters 674(2): L89-L92 (2008) |
|
| dc.identifier |
0004-637X (Print) |
|
| dc.identifier |
1538-4357 (Online) |
|
| dc.identifier |
http://hdl.handle.net/10261/5430 |
|
| dc.identifier |
10.1086/529376 |
|
| dc.identifier.uri |
http://dspace.mediu.edu.my:8181/xmlui/handle/10261/5430 |
|
| dc.description |
4 pages.-- Printed version published on Feb 20, 2008. |
|
| dc.description |
LS 5039 is one of a handful of X-ray binaries that have been recently detected at high-energy γ-rays, in this case, by the High Energy Stereoscopic System (H.E.S.S.). The nature of this system is unknown: both a black hole and a pulsar have been invoked as possible compact object companions. Here we work with a model of the high-energy phenomenology of the system in which it is assumed that the companion object is a pulsar rotating around an O6.5 V star in a ~3.9 day orbit. The model assumes two different sets of power-law spectral parameters of the interacting primary leptons corresponding to the two orbital phase intervals defined by H.E.S.S. as having different γ-ray spectra and very high energy (VHE) cutoffs. We show that the H.E.S.S. phenomenology is completely explained by this model. We present predictions for photons with lower energies (for E > 1 GeV), subject to test in the forthcoming months with the GLAST satellite. We find that GLAST will be able to judge on this model within 1 year. |
|
| dc.description |
We acknowledge support by grants MEC-AYA 2006-00530 and CSIC-PIE 200750I029. |
|
| dc.description |
Peer reviewed |
|
| dc.format |
680827 bytes |
|
| dc.format |
application/pdf |
|
| dc.language |
eng |
|
| dc.publisher |
American Astronomical Society |
|
| dc.publisher |
University of Chicago Press |
|
| dc.relation |
http://dx.doi.org/10.1086/529376 |
|
| dc.rights |
openAccess |
|
| dc.subject |
X-ray binaries (individual LS 5039) |
|
| dc.subject |
γ-rays: observations |
|
| dc.subject |
γ-rays: theory |
|
| dc.subject |
High-Energy Stereoscopy Array (H.E.S.S.) Telescope |
|
| dc.title |
GLAST testing of a pulsar model matching H.E.S.S. observations of LS 5039 |
|
| dc.type |
Artículo |
|