| Proposal ID | 030485 |
| Title | Simultaneous X-ray/VLA monitoring of NGC 253 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0304850901 |
| DOI | https://doi.org/10.5270/esa-azfltrf |
| Principal Investigator, PI | Dr Thomas Maccarone |
| Abstract | We propose 5 observations of 10~kiloseconds each with XMM and Chandra of thenearby star-forming galaxy NGC~253. We plan to take these data simultaneouslywith data from the Very Large Array. This will give us a sample of severalbright X-ray sources at a known distance with simultaneous radio coverage forthe first time. Simultaneous monitoring experiments are necessary forunderstanding the relation between X-ray and radio luminosities at the poorlyunderstood bright end of the luminosity distribution, and going to othergalaxies should greatly increase the sample size of sources at theseluminosities. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2005-12-16T20:14:55Z/2006-01-11T07:47:46Z |
| 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 | 2008-01-04T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "XMM", "radio coverage", "luminosity distribution", "sample size", "NGC 253", "ngc 253", "bright xray sources", "radio luminosities" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Thomas Maccarone, 2008, 'Simultaneous X-ray/VLA monitoring of NGC 253', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-azfltrf |