| Name | 080452 |
| Title | Probing correlated X-ray and free-free absorption variability in PKS 1718-649 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0804520301 |
| DOI | https://doi.org/10.5270/esa-3edp0wj |
| Author | European Space Agency |
| Description | We propose to observe the well known young gigaherz-peaked spectrum radio galaxy PKS 1718-649, which is part of TANAMI, the multiwavelength AGN monitoring program on the southern hemisphere. PKS 1718-649 turns out to be the only source where variable free-free absorption has been detected in its radio core. Many publications emphasize the possibility of correlated X-ray absorption, due to the very likely spatial vicinity of the radio and X-ray emission sites. Up to now, however, no simultaneous X-ray and radio observations were conducted, which is the aim of this proposal. As we will demonstrate, PKS 1718-649 also shows variable X-ray absorption and is therefore the source of choice for testing correlated absorption variability of the radio and the X-rays. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2018-03-08T05:07:04Z/2018-03-08T16:13:44Z |
| 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 | 2019-03-23T23:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2019, Probing Correlated X-Ray And Free-Free Absorption Variability In Pks 1718-649, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-3edp0wj |