| Proposal ID | 090023 |
| Title | The extreme X-ray weakness of PG 0043+039 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0900230301 |
| DOI | https://doi.org/10.57780/esa-8hg9is9 |
| Principal Investigator, PI | Dr Norbert Schartel |
| Abstract | PG 0043+039 is the most X-ray weak quasar known. XMM-Newton observation in 2013set a clear detection meaning a flux at least 3.8 times higher than in 2005. Thequasar remained extremely X-ray weak, with a peculiar spectral energydistribution (SED) and a unique UV spectrum. This unique source deservesfurther, deeper, observations, to establish its X-ray spectrum, its optical tohard-X-ray SED and its variability. We aim at probing our hypothesis that PG0043+039 is a genuine X-ray weak quasar and to test alternative scenarios(ADAFs, missing corona, cyclotron-emission). We propose to observe PG0043+039quasi-simultaneously (2 days) with XMM-Newton (20+100ks), NuSTAR (60ks), HST (2orbits), 10m Hobby-Eberly and 10m SALT Telescope in South Africa. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-06-15T16:54:19Z/2022-07-11T01:56:10Z |
| Version | 20.08_20220509_1852 |
| 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 | 2023-07-28T00:00:00Z |
| Keywords | "NuSTAR", "xray weakness", "10m hobby eberly", "XMM-Newton", "xray weak", "xmm newton", "missing corona", "south africa", "source deserves", "cyclotron emission", "039 quasi", "XMM", "pg 0043", "xray spectrum", "10m salt telescope", "2013 set", "xray weak quasar", "uv spectrum", "quasar remained", "detection meaning", "HST" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Norbert Schartel, 2023, 'The extreme X-ray weakness of PG 0043+039', 20.08_20220509_1852, European Space Agency, https://doi.org/10.57780/esa-8hg9is9 |