A dataset provided by the European Space Agency

Name 065580
Title Black Holes at the Centers of Dwarf Galaxies
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0655800101
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0655800201
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0655800501
http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0655800601

DOI 10.5270/esa-szkqyzy
Author Dr Edward Moran
Description We have discovered low-luminosity AGNs in over 30 bona fide dwarf galaxies. The objects 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**6 M_sun range critical for investigations into the co-evolution of galaxies and supermassive black holes. Surprisingly, *all* of the dwarf-galaxy AGNs we have found are faint, narrow-line (type 2) objects. Recent theoretical work suggests that at very low luminosities AGNs may lack obscuring tori and-or classical BLRs. We propose use XMM observations to test these models. The data will reveal whether or not the objects are obscured, which will forward our understanding of the physical nature of AGNs and the origin of their fundamental structure.
Publication Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift . Yershov, V. N., . Ap&SS . 354-97 . 2014 . 2014Ap&SS.354...97Y ,
XMM-Newton publication statistics . Ness, J.-U., Parmar, A. N., et all. . AN . 335-210 . 2014 . 2014AN....335..210N ,
Ensemble X-ray variability of active galactic nuclei. II. Excess variance and updated structure function . Vagnetti, F., Middei, R., et all. . A&A . 593-55 . 2016 . 2016A&A...593A..55V ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
A new sample of X-ray selected narrow emission-line galaxies. II. Looking for True Seyfert 2 . Pons, E., Watson, M. G., . A&A . 594-72 . 2016 . 2016A&A...594A..72P ,
A Catalog Sample of Low-mass Galaxies Observed in X-Rays with Central Candidate Black Holes . Nucita, A. A., Manni, L., et all. . ApJ . 837-66 . 2017 . 2017ApJ...837...66N ,
New Physical Insights about Tidal Disruption Events from a Comprehensive Observational Inventory at X-Ray Wavelengths . Auchettl, Katie, Guillochon, James, . ApJ . 838-149 . 2017 . 2017ApJ...838..149A ,
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 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 2012-01-19T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012-01-19T00:00:00Z, 065580, 17.56_20190403_1200. https://doi.org/10.5270/esa-szkqyzy