A dataset provided by the European Space Agency

Name: Unraveling the mysterious hierarchical triple system HD 181068
Published: 2014-05-31T00:00:00Z

Proposal ID	072233
Title	Unraveling the mysterious hierarchical triple system HD 181068
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0722330201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0722330301
DOI	https://doi.org/10.5270/esa-86zkzbm
Principal Investigator, PI	Dr Stefan Czesla
Abstract	We propose the first detailed X-ray study of the hierarchical triple system HD181068. As revealed by Kepler observations and subsequent ground basedfollow-up, this triple system consists of a G-type giant primary, orbited by aclose binary once every 45 days. The close binary hosts two dwarfs orbiting eachother with a period of 0.9 days. All components of the triple system eclipseeach other. HD 181068 is a RASS X-ray source with an X-ray luminosity in excessof 10e31 erg/s. We propose to carry out a pilot study with two XMM-Newtonpointings of 10 ks and 50 ks duration to attribute the X-ray flux to theindividual triple-system components, characterize the X-ray spectrum in depth,and assess the feasibility of more detailed follow-up studies.
Publications	A multiwavelength study of the hierarchical triple HD 181068. A test bed for studying star-planet interaction? \|Czesla, S., Huber, K. F., et al. \| A&A \| 570-115 \| 2014 \| 2014A&A...570A.115C \| http://ui.adsabs.harvard.edu/#abs/2014A&A...570A.115C The Million Optical - Radio/X-ray Associations (MORX) Catalogue \|Flesch, Eric W., \| PASA \| 33-52 \| 2016 \| 2016PASA...33...52F \| http://ui.adsabs.harvard.edu/#abs/2016PASA...33...52F An improved age-activity relationship for cool stars older than a gigayear \|Booth, R. S., Poppenhaeger, K., et al. \| MNRAS \| 471-1012 \| 2017 \| 2017MNRAS.471.1012B \| http://ui.adsabs.harvard.edu/#abs/2017MNRAS.471.1012B 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 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 Robust constraints on feebly interacting particles using XMM-Newton \|Luque, Pedro De la Torre, Balaji, Shyam, \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque, Pedro De la Torre, Balaji, Shyam, \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque, Pedro, Balaji, Shyam, \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2013-05-03T04:03:10Z/2013-05-19T18:24:45Z
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	2014-05-31T00:00:00Z
Keywords	"triple system eclipse", "xray luminosity", "XMM", "xmm newton pointings", "rass xray source", "xray spectrum", "type giant primary", "xray flux", "triple system consists", "subsequent ground", "HD 181068", "hd 181068", "close binary", "XMM-Newton", "10e31 erg"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Stefan Czesla, 2014, 'Unraveling the mysterious hierarchical triple system HD 181068', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-86zkzbm