Proposal ID | 020487 |
Title | STUDYING THE FIVE SOURCES OF X-RAY EMISSION IN NGC 4945 |
Download Data Associated to the proposal | 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 |
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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 |
Last Update | 2025-01-27 |
Keywords | "nuclear xray emission", "ngc 4945", "composite agn", "starburst emission", "xray emission region", "scale disk", "epoch xmm", "xray emission", "prominent xray", "XMM", "prominent superwind extends", "focusing primarily", "NGC 4945", "ultraluminous xray sources", "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 |