ROSAT observation of GRS 1739-278
| dc.creator | Greiner, J. | |
| dc.creator | Dennerl, K. | |
| dc.creator | Predehl, P. | |
| dc.date | 1996-08-28 | |
| dc.date.accessioned | 2026-07-07T02:21:49Z | |
| dc.date.available | 2026-07-07T02:21:49Z | |
| dc.description | We have observed GRS 1739-278 with the ROSAT HRI on March 31, 1996. The improved X-ray position proves the identification with an earlier discovered variable radio source. We derive an extinction of A_V = 14+/-2 from the dust scattering halo, which implies a distance of d approx. 6-8.5 kpc. Thus, GRS 1739-278 radiates at least near the Eddington limit for a 1 M_sun compact object. The existence of the dust scattering halo necessitates a prolonged X-ray activity period prior to the ROSAT observation. Combined with the non-detection by Granat during an earlier galactic center observation, we speculate that the X-ray turn-on of GRS 1739-278 happened in Nov./Dec. 1995. | |
| dc.description | tar-file with 4 pages A&A style LATEX, 1 ps-figure accepted for publication in Astron. Astrophys. Lett | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9608184 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9608184 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/10649 | |
| dc.subject | Astrophysics | |
| dc.title | ROSAT observation of GRS 1739-278 | |
| dc.type | text |