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.
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.
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
