Proposal ID | 078235 |
Title | A New Class of Massive Spiral Galaxies with High HI Masses |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0782350301 |
DOI | https://doi.org/10.5270/esa-g9uvfnm |
Principal Investigator, PI | Prof Joel Bregman |
Abstract | The most extensive HI survey, obtained with Arecibo, revealed a new category ofspiral galaxy in the local volume: massive spirals with a gaseous contentcomparable the stellar mass. These galaxies have high spin parameters, which maybe slowing the conversion of gas into stars. The gaseous disks are regular,suggesting that they arise from a radiatively cooling hot galactic halo that isparticularly massive and X-ray luminous. These may be local analogs to theactive hot mode accretion process that was common at z ~ 1-3 but is rare today.We propose the first X-ray observations of this newly recognized class ofgalaxies. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2016-11-26T12:50:00Z/2016-12-05T01:07:23Z |
Version | 17.56_20190403_1200 |
Mission Description | The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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 | 2018-01-04T23:00:00Z |
Keywords | "gaseous dis", "stellar mass", "local volume", "xray luminous", "recognized class", "massive spiral galaxy", "massive spirals", "spiral galaxy", "hi masses", "spin parameters", "local analogs", "gaseous content comparable", "extensive hi survey" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Prof Joel Bregman, 2018, 'A New Class of Massive Spiral Galaxies with High HI Masses', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-g9uvfnm |