A dataset provided by the European Space Agency

Name: Fast stochastic variability in CV variable V1504 Cyg and source identification
Published: 2018-10-31T23:00:00Z

Proposal ID	080110
Title	Fast stochastic variability in CV variable V1504 Cyg and source identification
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0801100101
DOI	https://doi.org/10.5270/esa-5ge82i2
Principal Investigator, PI	Dr Andrej Dobrotka
Abstract	High-cadence long-term Kepler data of cataclysmic variables V1504Cyg, V344Lyrand MVLyr show multi-component power density spectra of the fast stochasticvariability. The same is observed in X-rays in the case of SSCyg, RUPeg and,most recently, in MVLyr. Modelling studies allow a variety of accretingstructures as the source. However, conclusions based on a single wave bandremain ambiguous while we have achieved more robust conclusions from combinedoptical and X-ray observations of the nova like MVLyr. The case of the dwarfnova V1504Cyg is more complex because it comprises quiescence and outbursts.Since it is technically impossible to obtain optical Kepler data of SSCyg orRUPeg, we propose to observe V1504Cyg with XMM. The goal is to search for the break freq. found in Kepler data.
Publications	Classification of 4XMM-DR9 sources by machine learning \|Zhang, Yanxia, Zhao, Yongheng, \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z XMM-Newton observation of V1504 Cyg as a probe for the existence of an evaporated corona \|Dobrotka, A., Ness, J. -U., et al. \| A&A \| 674-188 \| 2023 \| 2023A&A...674A.188D \| http://ui.adsabs.harvard.edu/#abs/2023A&A...674A.188D The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII, O VIII, and Fe L-shell Transitions \|Pan, Zeyang, Qu, Zhijie, et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez, Antonio C., \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2017-09-26T15:58:01Z/2017-09-27T18:54:40Z
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	2018-10-31T23:00:00Z
Keywords	"break freq", "fast stochastic variability", "XMM", "cataclysmic variables v1504cyg", "dwarf nova v1504cyg", "robust conclusions", "source identification", "comprises quiescence", "combined optical", "accreting structures", "kepler data", "optical kepler data", "single wave band", "term kepler data", "technically impossible"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Andrej Dobrotka, 2018, 'Fast stochastic variability in CV variable V1504 Cyg and source identification', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5ge82i2