| Name | 084528 |
| Title | Snapshots of Compact Elliptical Galaxies |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0845280201 |
| DOI | https://doi.org/10.5270/esa-h8pggm0 |
| Author | European Space Agency |
| Description | A powerful new approach to study early galaxy formation is through compact elliptical galaxies (CEGs) which are local analogs of the high-redshift red nuggets thought to represent progenitors of today.s early-type galaxies. X-ray observation of the hot diffuse gas of CEGs is the most viable means to measure the global properties like the halo concentration, mass, and baryon fraction, but only two CEGs have been identified that are suitable for such an X-ray analysis. To remedy this, we constructed a sample of 14 CEGs to map in detail their X-ray emission. We propose a snapshot survey of the 7 CEGs in the sample which lack any X-ray data. Deep follow-up exposures with XMM-Newton and Chandra of promising targets will then be sought for detailed analysis of their global mass distributions. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2019-08-02T21:28:41Z/2020-02-06T17:48:34Z |
| Version | 18.02_20200221_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 | 2021-02-24T23:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2021, Snapshots Of Compact Elliptical Galaxies, 18.02_20200221_1200, European Space Agency, https://doi.org/10.5270/esa-h8pggm0 |