A dataset provided by the European Space Agency

Name 072231
Title Circum Galactic Medium of the Milky Way
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0722310201

DOI 10.5270/esa-vhkljqw
Author Dr Anjali Gupta
Description Our special vantage point in our Galaxy allows us to study the Galactic warm-hot halo along several sightlines. The combination of absorption and emission measurements provides a powerful tool in this regard. One immediate step forward would be to use emission measures close to the sightlines of absorption lines. With the proposed observations we will determine emission measures close to five sightlines in which we have detected z=0 absorption lines with Chandra. This will break the degeneracy between density and path-length and robustly measure the extent and mass of the warm-hot halo, placing strongest constraints yet on the fraction of missing baryons in the warm-hot plasma.
Publication The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
Probing the Anisotropy of the Milky Way Gaseous Halo-II: Sightline toward Mrk 509 . Gupta, A., Mathur, S., . ApJ . 836-243 . 2017 . 2017ApJ...836..243G ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2013-11-19T11:01:58Z/2013-11-20T05:31:58Z
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 2014-12-05T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2014-12-05T23:00:00Z, 072231, 17.56_20190403_1200. https://doi.org/10.5270/esa-vhkljqw