A dataset provided by the European Space Agency

Proposal ID 074062
Title Constraining the SED of potentially dust deficient AGN in nearby dwarf galaxies
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DOI https://doi.org/10.5270/esa-pej7h6p
Principal Investigator, PI Prof Kevin Schawinski
Abstract We have identified four Active Galactic Nuclei (AGN) in nearby dwarf galaxies(z<0.1, M <1E9.5M_sun) with an unexpected deficit of mid-IR (3.4-22 micron)emission. The extremely low mid-IR luminosity could be due to a dust deficit andabsence of a torus. If confirmed this may lead to new insights into the AGNcentral engine structure in the regime of low black hole mass, AGN luminosityand/or Eddington ratio. The Chandra data available for one of the galaxies seemto confirm the deficit. We therefore propose to use XMM-Newton to obtain X-Raydata for the remaining three objects. This data will allow us to constrain thewhole Spectral Energy Distribution (SED) of the hosted AGN and confirm themid-IR deficit in a statistical sample.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2014-09-09T17:53:44Z/2015-02-28T20:47:50Z
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 2016-03-23T23:00:00Z
Keywords "eddington ratio", "agn luminosity", "xray data", "dust deficit", "XMM", "nearby dwarf galaxy", "chandra data", "mid ir", "micron emission", "hosted agn", "XMM-Newton", "low blackhole mass", "statistical sample", "mid ir deficit", "xmm newton"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Prof Kevin Schawinski, 2016, 'Constraining the SED of potentially dust deficient AGN in nearby dwarf galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-pej7h6p