A dataset provided by the European Space Agency

Name 040506
Title Is there a black hole in WR148?


DOI https://doi.org/10.5270/esa-f4wp3i5
Author Dr Erik Kuulkers
Description Among Wolf-Rayet (WR) stars, WR148 (HD 197406) appears to be very unusual: it is an extreme runaway, single-line spectroscopic binary in which the companion strongly ionizes the dense WR wind. It has been suggested that WR148 harbors a compact companion, most likely a black hole (BH). Using XMM-Newton we will determine the nature of the companion: we will search for hard X-rays (typically larger than virgul6 keV) as the signature of a BH in WR148. We will also identify the soft X-ray (less than virgul2.5 keV) emission previously detected from this source.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2006-07-10T06:02:45Z/2006-07-12T14:46:10Z
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 2007-08-09T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2007-08-09T00:00:00Z, 040506, 17.56_20190403_1200. https://doi.org/10.5270/esa-f4wp3i5