| Name | 082333 |
| Title | A new observation of the tidal disruption candidate 2MASX 1446+68 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0823330101 |
| DOI | https://doi.org/10.5270/esa-own8sjh |
| Author | European Space Agency |
| Description | In 2016 XMM-Newton detected a flare from the galaxy 2MASX 1446+68 during a slew. Optical spectra subsequently showed that the galaxy is non-active and a good candidate for a tidal disruption event, where a star is shredded and consumed by a super-massive black hole. We monitored the evolution of the disruption with XMM and Swift finding a drop in X-ray flux of a factor 20, while the UV has remained high and constant. This is the first event where the X-ray flux fades before the UV and casts doubt on currently fashionable models which ascribe the UV/optical emission to reprocessing of the X-ray flux. We ask for an XMM observation in AO17 to continue to monitor the X-ray and UV flux and obtain a high quality spectrum. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2018-04-25T22:31:49Z/2018-04-26T05:13:29Z |
| 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 | 2019-05-29T22:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2019, A New Observation Of The Tidal Disruption Candidate 2Masx 1446+68, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-own8sjh |