| Proposal ID | 065580 |
| Title | Black Holes at the Centers of Dwarf Galaxies |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0655800101 |
| DOI | https://doi.org/10.5270/esa-szkqyzy |
| Principal Investigator, PI | Dr Edward Moran |
| Abstract | We have discovered low-luminosity AGNs in over 30 bona fide dwarf galaxies. Theobjects are the least massive galaxies known to contain central black holes.Correspondingly, their black holes are almost certain to be in the 10**3 - 10**6M_sun range critical for investigations into the co-evolution of galaxies andsupermassive black holes. Surprisingly, *all* of the dwarf-galaxy AGNs we havefound are faint, narrow-line (type 2) objects. Recent theoretical work suggeststhat at very low luminosities AGNs may lack obscuring tori and/or classicalBLRs. We propose use XMM observations to test these models. The data will revealwhether or not the objects are obscured, which will forward our understanding ofthe physical nature of AGNs and the origin of their fundamental structure. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2010-05-07T14:06:17Z/2010-12-22T01:46:25Z |
| 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 | 2012-01-19T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "dwarf galaxy", "narrow line type", "central black holes", "m_sun range", "low luminosities agns", "supermassive black holes", "black holes", "massive galaxy", "co evolution", "low luminosity agns", "dwarf galaxy agns", "fundamental structure", "XMM", "classical blrs", "obscuring tori" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Edward Moran, 2012, 'Black Holes at the Centers of Dwarf Galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-szkqyzy |