| Name | 055587 |
| Title | Faint and soft X-ray binaries in three dwarf spheroidal galaxies |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0555870201 |
| DOI | https://doi.org/10.5270/esa-6p0k46n |
| Author | European Space Agency |
| Description | We propose to observe three nearby dwarf spheroidal (dSph) companions of the Milky Way. These galaxies host old populations with little or no contamination of recent star formation, and appear to have a huge dark matter content. They are the ideal Rosetta stones to probe theories of X-ray binary formation, type Ia progenitors evolution, and dark matter halos.Recent observations of four other dSph with Chandra and XMM-Newton have revealed a large number of X-ray sources in the fields, effected by small column density of neutral hydrogen N(H).Using deep optical and UV images, archival HST and GALEX exposures, and later spectroscopic follow-up, we will be able to determine the nature of the sources and whether they belong to the galactic populations. |
| Publication | No observations found associated with the current proposal |
| 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 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 | 2009-12-20T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 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 |