Proposal ID | 020273 |
Title | X-RAY GALAXY HALOS AS A CONSEQUENCE OF INFALLING OR OUTFLOWING GAS? |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0202730101 |
DOI | https://doi.org/10.5270/esa-swj2upk |
Principal Investigator, PI | Prof RALF-JUERGEN DETTMAR |
Abstract | Current cosmological models predict gaseous X-ray halos in star forming spiraledge-on galaxies as a consequence of infalling hot gas from the halo onto thedisk. In complete contradiction are models of the ISM, because they attributethe presence of hot halo gas to star forming activity in the disk and assume alarge scale transport of matter from the disk into the halo. In order to testthe second scenario we propose to use XMM-Newton and observe the X-ray emissionof three edge-on galaxies known to possess extended diffuse ionized gas (DIG)and radio continuum halos and search for associated star formation induced hotX-ray halos. This, together with previously obtained multi-wavelengthobservations would allow us to check the infall vs. the outflow model. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2004-05-30T10:44:47Z/2004-06-13T17:08:54Z |
Version | 17.56_20190403_1200 |
Mission Description | The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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 | 2005-07-16T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "outflow model", "radio continuum halos", "scale transport", "complete contradiction", "xmm newton", "XMM-Newton", "outflowing gas ?.", "multi wavelength", "xray emission", "star forming activity", "XMM", "infalling hot gas", "hot halo gas" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Prof RALF-JUERGEN DETTMAR, 2005, 'X-RAY GALAXY HALOS AS A CONSEQUENCE OF INFALLING OR OUTFLOWING GAS?', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-swj2upk |