A dataset provided by the European Space Agency

Proposal ID 020487
Title STUDYING THE FIVE SOURCES OF X-RAY EMISSION IN NGC 4945
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204870101

DOI https://doi.org/10.5270/esa-ldbiiae
Principal Investigator, PI Dr NICHOLAS SCHURCH
Abstract Recent Chandra and XMM observations of the composite AGN/starburst galaxy NGC4945 detect a number of X-ray emission regions outside of the immediateenvironment of the AGN. In particular, extensive diffuse X-ray emission isassociated with the large-scale disk of the galaxy, a prominent superwindextends to the NW of the nucleus, and a number of ultraluminous X-ray sourcesare evident. We propose a deeper (60 ks) second-epoch XMM observation of NGC4945, focusing primarily on the non-nuclear X-ray emission. The objectives ofthe observation are (i) a spectral study of the extensive diffuse X-ray emission(ii) a spectro-imaging study of the X-ray superwind (iii) variability studies ofboth the AGN/starburst emission and the population of prominent X-ray point sources.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-01-10T18:28:35Z/2004-01-11T12:30:35Z
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 2005-02-10T00:00:00Z
Keywords "scale disk", "XMM", "composite agn", "ngc 4945", "xray emission region", "starburst emission", "nuclear xray emission", "ultraluminous xray sources", "prominent superwind extends", "NGC 4945", "xray emission", "prominent xray", "focusing primarily", "epoch xmm", "spectro imaging"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr NICHOLAS SCHURCH, 2005, 'STUDYING THE FIVE SOURCES OF X-RAY EMISSION IN NGC 4945', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ldbiiae