A dataset provided by the European Space Agency

Name 086108
Title Hot Gas in Low Redshift, Massive OVI+Ly-Alpha Absorption-Line Systems


DOI https://doi.org/10.5270/esa-[xxxxxxx]
Author Prof Megan Donahue
Description We propose a unique XMM study of 7 galaxy groups selected by UV absorption in HST-COS spectra. Combining XMM observations and UV absorption spectroscopy of these group will yield new constraints on the state of the intra-group medium. The targets are similar in velocity dispersion (sigmavirgul300-500km-s) and richness. All have broad Ly-a absorption, and but only 4 have detectable OVI absorption. The 3 groups with XMM observations show that two with OVI are associated with clear X-ray dominant groups, while the other with no OVI is not. We will test the ideas from numerical simulations, where the relationships between thermodynamic properties of the hot gas and the presence of multiphase gas depend significantly on 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 2020-10-07T10:09:04Z/2020-10-11T18:21:09Z
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 2021-11-14T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2021-11-14T00:00:00Z, 086108, 18.02_20200221_1200. https://doi.org/10.5270/esa-[xxxxxxx]