A dataset provided by the European Space Agency

Name: LkCa 15: An Accreting T Tauri Star Orbited by a Young Planet
Published: 2015-03-10T23:00:00Z

Proposal ID	072234
Title	LkCa 15: An Accreting T Tauri Star Orbited by a Young Planet
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0722340101
DOI	https://doi.org/10.5270/esa-rxx1gxw
Principal Investigator, PI	Dr Stephen Skinner
Abstract	A protoplanet orbiting the T Tauri star LkCa 15 has recently been detected usinga new IR masked aperture technique. It is so far unique, being the only knownprotoplanet around a young star (age 2 Myr). As such, the exoplanet andconditions in the transition disk will place tight constraints on planetformation models. We have detected bright X-ray emission from LkCa 15 in a short9.8 ks Chandra exposure. We propose here a deeper follow-up observation with XMMEPIC that will reliably determine the X-ray absorption, plasma temperaturedistribution, and spectral hardness. These quantities are key inputs todisk-heating and planet formation models and when combined with existingoptical/IR data will allow the gas-to-dust ratio in the disk to be determined.
Publications	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 XMM-Newton X-Ray Observations of LkCa 15: A T Tauri Star with a Formative Planetary System \|Skinner, Stephen L., Gudel, Manuel, \| ApJ \| 839-45 \| 2017 \| 2017ApJ...839...45S \| http://ui.adsabs.harvard.edu/#abs/2017ApJ...839...45S 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 value-added catalogue of ASAS-SN eclipsing binaries: parameters of 30 000 detached systems \|Rowan, D. M., Jayasinghe, T., et al. \| MNRAS \| 517-2190 \| 2022 \| 2022MNRAS.517.2190R \| http://ui.adsabs.harvard.edu/#abs/2022MNRAS.517.2190R 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	2014-02-20T19:12:34Z/2014-02-21T06:02:34Z
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	2015-03-10T23:00:00Z
Keywords	"tauri star orbited", "star age", "existing optical", "xray absorption", "chandra exposure", "disk heating", "spectral hardness", "XMM", "dust ratio", "transition disk", "protoplanet orbiting", "EPIC", "bright xray emission", "tight constraints", "key inputs", "xmm epic", "tauri star lkca", "plasma temperature distribution", "planet formation models", "ir data"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Stephen Skinner, 2015, 'LkCa 15: An Accreting T Tauri Star Orbited by a Young Planet', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-rxx1gxw