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http://hdl.handle.net/2289/4933Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Rao, A.R. | - |
| dc.contributor.author | Paul, Biswajit | - |
| dc.contributor.author | Yadav, J.S. | - |
| dc.contributor.author | Vadawale, S.V. | - |
| dc.date.accessioned | 2012-07-14T10:21:18Z | - |
| dc.date.available | 2012-07-14T10:21:18Z | - |
| dc.date.issued | 2001-01 | - |
| dc.identifier.citation | Advances in Space Research, 2001, Vol. 28, p343-347 | en |
| dc.identifier.issn | 0273-1177 | - |
| dc.identifier.uri | http://hdl.handle.net/2289/4933 | - |
| dc.description | Restricted Access | en |
| dc.description.abstract | We have analyzed X-ray data obtained from the RXTE archives pertaining to the low-hard and high-soft spectral states of GRS 1915+105, to establish the spectral and temporal characteristics during these states. In the high-soft state, the X-ray spectrum is described by the standard model for Galactic black hole candidate sources consisting of a multicolor disk-blackbody and a power-law, whereas the Power Density Spectrum (PDS) is steep without any evidence of QPO. In the low-hard state, the PDS is flat and dominated by a QPO at 0.5-10 Hz. However the X-ray spectrum in the low-hard state requires a different model consisting of a multi-color disk-blackbody and a comptonization due to hot plasma. Also, in the presence of steady radio emission during such state, an additional power-law component is required to describe the spectrum. We attempt to resolve the X-ray light-curves of the individual spectral components and find that the QPO is present only in the Comptonized component. | en |
| dc.language.iso | en | en |
| dc.publisher | Elsevier B.V. | en |
| dc.relation.uri | http://adsabs.harvard.edu/abs/2001AdSpR..28..343R | en |
| dc.relation.uri | http://dx.doi.org/10.1016/S0273-1177(01)00431-8 | en |
| dc.rights | 2001 Elsevier B.V. | en |
| dc.title | X-ray emission characteristics of GRS 1915+105 during the two spectral states | en |
| dc.type | Article | en |
| Appears in Collections: | Research Papers (A&A) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2001_Advances in Space Research_V28_p343.pdf Restricted Access | Restricted Access | 353.55 kB | Adobe PDF | View/Open Request a copy |
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