| Name | 088176 |
| Title | The missing X-ray pieces of the puzzle of the gamma-ray CSS-NLS1 galaxy 3C286 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0881760101 |
| DOI | https://doi.org/10.57780/esa-hkigfkz |
| Author | European Space Agency |
| Description | 3C286 is one of only 5 gamma-ray detected CSS and spectroscopically classified as NLS1 galaxy. It is thus a good laboratory for studying the disk-jet connection. But our analysis of the previous few X-ray observations has raised a puzzle\: a single unabsorbed powerlaw with index 2 well fits the data but is either inconsistent with the fact that 3C286 has a DLA with 2E+21 cm^-2, or with the jet model for its SED. Thus, we propose for an observation to obtain for the first time ever a high S/N spectrum, aiming at measuring the absorption and searching for the expected spectral break. Equally important, safely confirming previous evidence for variability would question its radio-calibrator status, if the variability can be traced back to the jet. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-12-17T05:40:41Z/2021-12-17T19:24:01Z |
| Version | 19.16_20210326_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 | 2023-01-18T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2023, The Missing X-Ray Pieces Of The Puzzle Of The Gamma-Ray Css-Nls1 Galaxy 3C286, 19.16_20210326_1200, European Space Agency, https://doi.org/10.57780/esa-hkigfkz |