| Name | 020404 |
| Title | X COMAE X-RAYS THE STICKMAN.S LEGS |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204040101 |
| DOI | https://doi.org/10.5270/esa-x53ny7s |
| Author | European Space Agency |
| Description | The existence of a warm-hot intergalactic medium (WHIM) can solve two puzzles: Why galaxy clusters do not follow classical scaling relations and Where are the local baryons observed at high z. Our XMM observations of the outskirts of the Coma cluster detect the WHIM viewed along a filament. Its X-ray temperature is 0.2 keV and OVII and OVIII emission lines are observed at CCD resolution. Remarkably, a bright AGN is also projected on the WHIM, so grating observations can detect OVII and OVIII absorption lines. The redshift and width of the lines will determine where the gas is and its size along the line of sight. The combination of emission and absorption lines from the same species provides additional diagnostics of the properties of the WHIM. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2004-06-06T19:23:20Z/2004-07-13T20:44:20Z |
| 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 | 2005-08-19T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2005, X Comae X-Rays The Stickman.S Legs, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-x53ny7s |