Proposal ID | 074062 |
Title | Constraining the SED of potentially dust deficient AGN in nearby dwarf galaxies |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0740620101 |
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 |
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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 |