GRS 1758–258: RXTE Monitoring of a Rare Persistent Hard State Black Hole
GRS 1758–258 is the least studied of the three persistent black hole X-ray binaries in our Galaxy. It is also one of only two known black hole candidates, including all black hole transients, which shows a decrease of its 3-10 keV flux when entering the thermally dominated soft state, rather than an...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
CTU Central Library
2011-01-01
|
| Series: | Acta Polytechnica |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/ap/article/view/1480 |
| _version_ | 1818039403588616192 |
|---|---|
| author | M. Obst K. Pottschmidt A. Lohfink J. Wilms M. Böck D. M. Smith J. A. Tomsick I. Kreykenbohm |
| author_facet | M. Obst K. Pottschmidt A. Lohfink J. Wilms M. Böck D. M. Smith J. A. Tomsick I. Kreykenbohm |
| author_sort | M. Obst |
| collection | DOAJ |
| description | GRS 1758–258 is the least studied of the three persistent black hole X-ray binaries in our Galaxy. It is also one of only two known black hole candidates, including all black hole transients, which shows a decrease of its 3-10 keV flux when entering the thermally dominated soft state, rather than an increase.We present the spectral evolution of GRS 1758–258 from RXTE-PCA observations spanning a time of about 11 years from 1996 to 2007. During this time, seven dim soft states are detected. We also consider INTEGRAL monitoring observations of the source and compare the long-term behavior to that of the bright persistent black hole X-ray binary Cygnus X-1. We discuss the observed state transitions in the light of physical scenarios for black hole transitions. |
| first_indexed | 2024-12-10T07:58:05Z |
| format | Article |
| id | doaj.art-0ae43614b6734165b2bb6d9cd899ca16 |
| institution | Directory Open Access Journal |
| issn | 1210-2709 1805-2363 |
| language | English |
| last_indexed | 2024-12-10T07:58:05Z |
| publishDate | 2011-01-01 |
| publisher | CTU Central Library |
| record_format | Article |
| series | Acta Polytechnica |
| spelling | doaj.art-0ae43614b6734165b2bb6d9cd899ca162022-12-22T01:56:50ZengCTU Central LibraryActa Polytechnica1210-27091805-23632011-01-015161480GRS 1758–258: RXTE Monitoring of a Rare Persistent Hard State Black HoleM. ObstK. PottschmidtA. LohfinkJ. WilmsM. BöckD. M. SmithJ. A. TomsickI. KreykenbohmGRS 1758–258 is the least studied of the three persistent black hole X-ray binaries in our Galaxy. It is also one of only two known black hole candidates, including all black hole transients, which shows a decrease of its 3-10 keV flux when entering the thermally dominated soft state, rather than an increase.We present the spectral evolution of GRS 1758–258 from RXTE-PCA observations spanning a time of about 11 years from 1996 to 2007. During this time, seven dim soft states are detected. We also consider INTEGRAL monitoring observations of the source and compare the long-term behavior to that of the bright persistent black hole X-ray binary Cygnus X-1. We discuss the observed state transitions in the light of physical scenarios for black hole transitions.https://ojs.cvut.cz/ojs/index.php/ap/article/view/1480black hole binaries: generalblack hole binaries: individual: GRS 1758–258. |
| spellingShingle | M. Obst K. Pottschmidt A. Lohfink J. Wilms M. Böck D. M. Smith J. A. Tomsick I. Kreykenbohm GRS 1758–258: RXTE Monitoring of a Rare Persistent Hard State Black Hole Acta Polytechnica black hole binaries: general black hole binaries: individual: GRS 1758–258. |
| title | GRS 1758–258: RXTE Monitoring of a Rare Persistent Hard State Black Hole |
| title_full | GRS 1758–258: RXTE Monitoring of a Rare Persistent Hard State Black Hole |
| title_fullStr | GRS 1758–258: RXTE Monitoring of a Rare Persistent Hard State Black Hole |
| title_full_unstemmed | GRS 1758–258: RXTE Monitoring of a Rare Persistent Hard State Black Hole |
| title_short | GRS 1758–258: RXTE Monitoring of a Rare Persistent Hard State Black Hole |
| title_sort | grs 1758 258 rxte monitoring of a rare persistent hard state black hole |
| topic | black hole binaries: general black hole binaries: individual: GRS 1758–258. |
| url | https://ojs.cvut.cz/ojs/index.php/ap/article/view/1480 |
| work_keys_str_mv | AT mobst grs1758258rxtemonitoringofararepersistenthardstateblackhole AT kpottschmidt grs1758258rxtemonitoringofararepersistenthardstateblackhole AT alohfink grs1758258rxtemonitoringofararepersistenthardstateblackhole AT jwilms grs1758258rxtemonitoringofararepersistenthardstateblackhole AT mbock grs1758258rxtemonitoringofararepersistenthardstateblackhole AT dmsmith grs1758258rxtemonitoringofararepersistenthardstateblackhole AT jatomsick grs1758258rxtemonitoringofararepersistenthardstateblackhole AT ikreykenbohm grs1758258rxtemonitoringofararepersistenthardstateblackhole |