| Name | 090070 |
| Title | Hot Gas in Low Redshift, Massive OVI/Lyman-Alpha Absorption Line Systems |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0900700101 |
| DOI | https://doi.org/10.57780/esa-669goh0 |
| Author | European Space Agency |
| Description | We propose to complete a unique XMM study of 7 galaxy groups selected by UV absorption in HST/COS spectra of background quasars. Combining X-ray and UV observations of these groups will yield new constraints on the state and locations of the systems. baryons. The groups are similar in velocity dispersion (virgul300-500 km/s) and richness. All have broad Ly-alpha absorption, and but only 4 have detectable OVI absorption. XMM observations show that 2 with OVI are associated with clear X-ray dominant groups, while the other observed 3, lacking OVI, are not. We are proposing to observe the remaining two OVI-absorbing systems. We will test predictions from current numerical simulations for thermodynamic properties of multiphase gas, feedback mechanisms, merger history, and star formation history. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-08-17T12:04:49Z/2022-09-12T10:34:47Z |
| Version | 20.08_20220509_1852 |
| 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 | 2023-09-30T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2023, Hot Gas In Low Redshift Comma Massive Ovi/Lyman-Alpha Absorption Line Systems, 20.08_20220509_1852, European Space Agency, https://doi.org/10.57780/esa-669goh0 |