|Title||V2672 Oph: an Old Nova with a Luminous and Absorbed X-ray Emission|
|Author||Dr Koji Mukai|
|Description||Our recent Chandra observation shows that V2672 Oph (Nova Ophiuchi 2009) is a bright X-ray source in quiescence, several orders of magnitudes more luminous than ordinary non-magnetic cataclysmic variables. This confirms the tentative association of a ROSAT all-sky survey source with V2672 Oph, making it the third nova with pre-eruption X-ray detection. It had one of the shortest decay times and the broadest emission lines ever observed in novae, and is therefore very likely to be a recurrent nova. Here we propose a follow-up XMM-Newton observation of V2672 Oph designed to secure ~10 times more source photons than were obtained with Chandra, so as to characterize its X-ray spectrum and timing properties, as a part of a broader study of mass accretion in confirmed and candidate recurrent novae.|
|Publication||X-ray chimneys in the Galactic Centre . Chernyakova, Masha, . Natur . 567-318 . 2019 . 2019Natur.567..318C ,
An X-ray chimney extending hundreds of parsecs above and below the Galactic Centre . Ponti, G., Hofmann, F., et all. . Natur . 567-347 . 2019 . 2019Natur.567..347P ,
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2018-03-30T22:00:00Z, 078220, 17.56_20190403_1200. https://doi.org/10.5270/esa-9a883pu|