A dataset provided by the European Space Agency

Name 050361
Title Uncovering AGNs in Nearby Spiral Galaxies


DOI 10.5270/esa-po62ln2
Author Mr Himel Ghosh
Description Recent observations imply that at redshift zero, most of the nuclear activity must reside in low mass galaxies, mostly late-type spirals and dwarf ellipticals. We initiated a Chandra survey and an archival program to search for low-level nuclear activity in a sample of nearby low-mass galaxies. We propose XMM observations of three galaxies in each of which a nuclear X-ray source was detected with Chandra. X-ray spectra and optical to X-ray spectral energy distributions obtained with XMM will secure the identification of the X-ray sources as AGNs. We will also study the typical characteristics of low-luminosity AGNs. This will maximize the scientific returns of our Chandra survey, with important consequences toward understanding the formation and co-evolution of SBHs and galaxies.
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Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2007-12-22T19:54:18Z/2007-12-23T16:32:27Z
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 2009-01-30T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2009-01-30T00:00:00Z, 050361, 17.56_20190403_1200. https://doi.org/10.5270/esa-po62ln2