| Proposal ID | 067240 |
| Title | Probing the Fermi Bubbles with XMM-Newton |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0672400101 |
| DOI | https://doi.org/10.5270/esa-xsg23bo |
| Principal Investigator, PI | Prof Douglas Finkbeiner |
| Abstract | We propose to investigate the spectrum of X-ray emission from the edge of therecently discovered Galactic gamma-ray features known as the Fermi bubbles. Thebubbles extend 50 degrees above and below the Galactic center, with a width ofabout 40 degrees in longitude. These structures could result from a large-scaleaccretion driven outflow on the central black hole, or winds from a nuclearstarburst. ROSAT X-ray maps (bands R6 and R7) show closely related features witha relatively hard spectrum. This spectrum may be thermal bremsstrahlung emissionfrom T~10^7 K gas, or may contain significant line emission. The proposedobservations can distinguish between these two alternatives. |
| Publications |
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| Instrument | RGS1, EPN, RGS2, EMOS1, OM, EMOS2 |
| Temporal Coverage | 2011-09-13T08:09:54Z/2012-03-31T00:55:19Z |
| 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 | 2013-04-17T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "galactic gamma ray", "central black hole", "relatively hard spectrum", "xmm newton", "XMM-Newton", "thermal bremsstrahlung emission", "fermi bubbles", "ROSAT", "xray emission", "line emission", "closely related", "XMM", "nuclear starburst", "galactic center" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Douglas Finkbeiner, 2013, 'Probing the Fermi Bubbles with XMM-Newton', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-xsg23bo |