The viscous disk of GRS 1915-105
GRS 1915+105, one of the two known galactic microquasars, shows an extremely complex variability in the X-ray band, comparable to no other X-ray source in the sky. Making use of RXTE/PCA data, we have analyzed the X-ray spectral distribution throughout the variability. We find that all variations ca...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
1999
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/122741 https://www.sciencedirect.com/science/article/abs/pii/S0920563298002345?via%3Dihub |
| Aporte de: |
| id |
I19-R120-10915-122741 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Astronómicas Thick disk Astronomy Physics Accretion disc Scale (ratio) Event (particle physics) Time distribution Time structure Astrophysics Sky Radius Spectral power distribution |
| spellingShingle |
Ciencias Astronómicas Thick disk Astronomy Physics Accretion disc Scale (ratio) Event (particle physics) Time distribution Time structure Astrophysics Sky Radius Spectral power distribution Belloni, Tomaso Méndez, Mariano R. King, Andrew J. Klis, M. van der Paradijs, J. van The viscous disk of GRS 1915-105 |
| topic_facet |
Ciencias Astronómicas Thick disk Astronomy Physics Accretion disc Scale (ratio) Event (particle physics) Time distribution Time structure Astrophysics Sky Radius Spectral power distribution |
| description |
GRS 1915+105, one of the two known galactic microquasars, shows an extremely complex variability in the X-ray band, comparable to no other X-ray source in the sky. Making use of RXTE/PCA data, we have analyzed the X-ray spectral distribution throughout the variability. We find that all variations can be attributed to the rapid appearance and disappearance of the inner region of an optically-thick accretion disk. Since the time scale for each event is related to the maximum radius of the disappearing region, the difference in time structure is due to the time distribution of such radii. The observed relation between the extent of the missing inner region of the disk and the duration of an event is in remarkable agreement with the expected radius dependence of the viscous time scale of the radiation-dominated region of an accretion disk. |
| format |
Articulo Articulo |
| author |
Belloni, Tomaso Méndez, Mariano R. King, Andrew J. Klis, M. van der Paradijs, J. van |
| author_facet |
Belloni, Tomaso Méndez, Mariano R. King, Andrew J. Klis, M. van der Paradijs, J. van |
| author_sort |
Belloni, Tomaso |
| title |
The viscous disk of GRS 1915-105 |
| title_short |
The viscous disk of GRS 1915-105 |
| title_full |
The viscous disk of GRS 1915-105 |
| title_fullStr |
The viscous disk of GRS 1915-105 |
| title_full_unstemmed |
The viscous disk of GRS 1915-105 |
| title_sort |
viscous disk of grs 1915-105 |
| publishDate |
1999 |
| url |
http://sedici.unlp.edu.ar/handle/10915/122741 https://www.sciencedirect.com/science/article/abs/pii/S0920563298002345?via%3Dihub |
| work_keys_str_mv |
AT bellonitomaso theviscousdiskofgrs1915105 AT mendezmarianor theviscousdiskofgrs1915105 AT kingandrewj theviscousdiskofgrs1915105 AT klismvander theviscousdiskofgrs1915105 AT paradijsjvan theviscousdiskofgrs1915105 AT bellonitomaso viscousdiskofgrs1915105 AT mendezmarianor viscousdiskofgrs1915105 AT kingandrewj viscousdiskofgrs1915105 AT klismvander viscousdiskofgrs1915105 AT paradijsjvan viscousdiskofgrs1915105 |
| bdutipo_str |
Repositorios |
| _version_ |
1764820449150107648 |