A dataset provided by the European Space Agency

Name 011135
Title Is Sgr A* the X-ray source RX J1745.6-2900


DOI https://doi.org/10.5270/esa-ny9w1lr
Author Dr Bernd Aschenbach
Description With ROSAT, an X-ray source (RX J1745.6-2900) has been found coincident with the position of the Center of the Galaxy (Sgr A*) within 10". Most likely, this object is identical to a hard X-ray source found by other instruments. However, the absorption found with ROSAT does not agree with the extinction found in the NIR for the whole region. Therfore we conclude that either Sgr A* is subject to very local absorption or RX J1745.6-2900 is an unrelated background source. In trying to find an answer to this question, we propose to measure both the absorption and the position more precisely. This study relates to the overall mapping of the Galactic Center Region (Decourchelle et al.). Combining both observations provides an information about possible source variabilities.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2002-02-26T03:16:43Z/2002-10-03T11:42:16Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations.
Since Earth's atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2003-11-01T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2003-11-01T00:00:00Z, 011135, 17.56_20190403_1200. https://doi.org/10.5270/esa-ny9w1lr