| Name | 060319 |
| Title | Probing Dark Matter in Draco with X-Ray Binaries |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0603190101 |
| DOI | https://doi.org/10.5270/esa-jio1d2l |
| Author | Prof Kalvir Dhuga |
| Description | The dwarf spheroidal (dSph) galaxies in the Local Group are of considerable interest because of their unusually high mass-to-luminosity (M-L) ratios. The ^ated M-L ratios have led to claims of the presence of extraordinary amounts of Dark Matter (DM) in the dSph galaxies. We propose a 70ks X-ray observation of Draco in order to search for quiescent low-mass x-ray binaries (qLMXBs). These data offer the potential for an independent estimate of the amount of DM in Draco and provide an opportunity to test alternative models that employ initial mass function (IMF) variations and internal dynamics of stellar populations to explain the observed M-L ratios. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2009-08-04T03:40:16Z/2009-08-28T07:27:58Z |
| 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 | 2010-09-15T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2010-09-15T00:00:00Z, 060319, 17.56_20190403_1200. https://doi.org/10.5270/esa-jio1d2l |