| Proposal ID | 005980 |
| Title | The X-ray halos of extremely luminous giant LSB and HSB disk galaxies |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0059800101 |
| DOI | https://doi.org/10.5270/esa-l3ph30t |
| Principal Investigator, PI | Dr Benjamin Weiner |
| Abstract | Recent efforts to model the formation of disk galaxies have focused on thedissipative collapse of the disk inside a dark matter halo, and suggest thathigh and low surface brightness disks (HSBs and LSBs) form from low and highangular momentum halos, respectively. If correct, the largest LSBs reside inhalos with mass comparable to those of poor groups of galaxies, while HSBsreside in much less massive halos. We propose to observe three giant diskgalaxies, two LSBs and one HSB, with the EPIC pn camera on XMM with thefollowing goals: (1) to measure the hot gas to stellar mass ratio,(2) to probe the dark halo structure and density profile in low and high angular momentumsystems, and (3) to identify the baryon fraction and efficiency of disk collapse |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2001-12-02T17:44:18Z/2001-12-02T21:53:42Z |
| Version | 21.51_20241115_1113 |
| 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 | 2003-01-09T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "hsbs reside", "mass comparable", "hot gas", "massive halos", "XMM", "largest lsbs reside", "lsbs form", "dissipative collapse", "disk inside", "disk galaxy", "luminous giant lsb", "EPIC", "dark halo structure", "angular momentum systems", "hsb disk galaxy", "epic pn camera", "stellar mass ratio", "dark matter halo", "density profile", "disk collapse", "xray halos", "baryon fraction", "angular momentum halos", "giant disk galaxy" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Benjamin Weiner, 2003, 'The X-ray halos of extremely luminous giant LSB and HSB disk galaxies', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-l3ph30t |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |