| Name | 020479 |
| Title | DWARF GALAXIES IN THE LOCAL GROUP |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204790101 |
| DOI | https://doi.org/10.5270/esa-gltxm2m |
| Author | Dr ROSANNE DI STEFANO |
| Description | We propose XMM observations of 10 dwarf galaxies (DGs) in the Local Group. The galaxies form a uniformly selected sample whose members span a wide range of morphologies and of physical parameters, including total mass, fraction of mass in neutral hydrogen, and mass-to-light ratios. With 115 ksec in total, we will reach luminosity limits ranging from 3e33 erg-s to 1.2e36 erg-s. We will detect more than 100 X-ray sources (XRSs). Our primary goal is to explore the range of X-ray properties of DGs. We will (1) probe the nuclear regions, (2) compare XRSs in regions with recent star formation with those in older populations, (3) determine if there is a per capita excess of XRSs relative to the disk of the Milky Way, and (4) relate the X-ray properties of DGs to their other characteristics. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-12-23T23:05:47Z/2005-05-04T08:55:38Z |
| 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 | 2006-09-27T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2006-09-27T00:00:00Z, 020479, 17.56_20190403_1200. https://doi.org/10.5270/esa-gltxm2m |