| Name | 020487 |
| Title | STUDYING THE FIVE SOURCES OF X-RAY EMISSION IN NGC 4945 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204870101 |
| DOI | https://doi.org/10.5270/esa-ldbiiae |
| Author | European Space Agency |
| Description | Recent Chandra and XMM observations of the composite AGN/starburst galaxy NGC 4945 detect a number of X-ray emission regions outside of the immediate environment of the AGN. In particular, extensive diffuse X-ray emission is associated with the large-scale disk of the galaxy, a prominent superwind extends to the NW of the nucleus, and a number of ultraluminous X-ray sources are evident. We propose a deeper (60 ks) second-epoch XMM observation of NGC 4945, focusing primarily on the non-nuclear X-ray emission. The objectives of the 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 of both the AGN/starburst emission and the population of prominent X-ray point sources. |
| Publication | No observations found associated with the current proposal |
| 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 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 | 2005-02-10T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 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 |