| Name | 084273 |
| Title | The Compact Elliptical Galaxy PGC032873 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0842730101 |
| DOI | https://doi.org/10.57780/esa-yp5f568 |
| Author | European Space Agency |
| Description | Compact elliptical galaxies (CEGs) are local analogs of the high-redshift ..red nuggets. thought to represent progenitors of today.s early-type galaxies. CEGs, being low-redshift, are much more accessible to detailed observational study. Analysis of shallow Chandra observations of two well-studied CEGs in optical/IR reveals extended, luminous hot gas halos implying massive galaxies with M200 virgul (5-10) x 10^{12} Msun. We propose a deep follow-up observation of one of these targets to map its gravitating mass profile out to a radius virgulr_{2500} and measure the halo concentration, total mass, and baryon fraction. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-04-26T21:05:52Z/2020-05-11T19:14:09Z |
| 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 | 2021-07-22T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2021, The Compact Elliptical Galaxy Pgc032873, 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-yp5f568 |