A dataset provided by the European Space Agency

Name 011265
Title Probing the Galactic Halo using X-ray shadows at high galactic latitudes


DOI https://doi.org/10.5270/esa-65dt3wu
Author Dr Bernd Aschenbach
Description At high galactic latitudes the distant soft X-ray background is dominated by extragalactic sources and emission from the hot galactic halo. Results from ROSAT Survey observations revealed that molecular clouds at high latitudes cast deep shadows on distant components. Observations of the absorption gradients at the edges of these clouds enable us to disentangle the halo emission from the foreground contribution of the Local Bubble. Our main goal is to establish a thermal nature of (part of) the distant emission. Once we have separated the halo spectrum from the other components along the lines of sight we will perform a detailed spectral analysis of the emission line features expected in the energy range between 0.3-1.5 keV.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2000-07-03T12:05:20Z/2001-07-02T15:24:52Z
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 2002-09-05T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2002-09-05T00:00:00Z, 011265, 17.56_20190403_1200. https://doi.org/10.5270/esa-65dt3wu