Proposal ID | 065207 |
Title | A detailed X-ray study of the longest-lived nova in outburst, V723 Cas |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0652070101 |
DOI | https://doi.org/10.5270/esa-vxorzwm |
Principal Investigator, PI | Dr Jan-Uwe Ness |
Abstract | With 14 years, V723Cas is the oldest nova in the Galaxy. We search for reasonsfor the long life time of this nova compared to all other novae. With anuninterrupted 60-ks XMM observation, covering one orbit, we can: (1) constrainthe location of gas in the binary system using orbit phase-resolved EPIC spectra(2) study X-ray/UV variability, yielding the WD spin period, g modeoscillations, or evidence of renewed accretion disk activity (3) seecorrelations between X-ray and UV variability (4) investigate illuminationeffects of the companion with OM (5) determine from RGS whether the X-rayspectrum is a typical SSS spectrum, or whether it consists of overlappingemission lines. (6) search for emission lines yielding information on renewed accretion and cooling ejecta |
Publications |
|
Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2010-08-26T18:07:43Z/2010-08-27T13:00:18Z |
Version | 17.56_20190403_1200 |
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 | 2011-09-21T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "wd spin period", "mode oscillations", "binary system", "EPIC", "cooling ejecta", "renewed accretion", "uv variability", "life time", "typical sss spectrum", "v723 cas", "overlapping emission lines", "XMM", "xray spectrum", "illumination effects", "lived nova" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Jan-Uwe Ness, 2011, 'A detailed X-ray study of the longest-lived nova in outburst, V723 Cas', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-vxorzwm |