Proposal ID | 055587 |
Title | Faint and soft X-ray binaries in three dwarf spheroidal galaxies |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0555870201 |
DOI | https://doi.org/10.5270/esa-6p0k46n |
Principal Investigator, PI | Dr Marina Orio |
Abstract | We propose to observe three nearby dwarf spheroidal (dSph) companions of theMilky Way. These galaxies host old populations with little or no contaminationof recent star formation, and appear to have a huge dark matter content. Theyare the ideal Rosetta stones to probe theories of X-ray binary formation, typeIa progenitors evolution, and dark matter halos.Recent observations of fourother dSph with Chandra and XMM-Newton have revealed a large number of X-raysources in the fields, effected by small column density of neutral hydrogenN(H).Using deep optical and UV images, archival HST and GALEX exposures, andlater spectroscopic follow-up, we will be able to determine the nature of thesources and whether they belong to the galactic populations. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2008-11-24T07:38:18Z/2008-11-25T09:46:08Z |
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 | 2009-12-20T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "dark matter halos", "archival hst", "xray binary formation", "galactic populations", "star formation", "xmm newton", "uv images", "XMM-Newton", "deep optical", "column density", "dwarf spheroidal galaxy", "ideal rosetta stones", "xray sources", "soft xray binary", "XMM", "probe theories", "neutral hydrogen nh", "HST" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Marina Orio, 2009, 'Faint and soft X-ray binaries in three dwarf spheroidal galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-6p0k46n |