A dataset provided by the European Space Agency

Name: The X-ray emission of cTTS binary TWA 30
Published: 2012-08-19T00:00:00Z

Proposal ID	067250
Title	The X-ray emission of cTTS binary TWA 30
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0672500201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0672500301
DOI	https://doi.org/10.5270/esa-pdipgeb
Principal Investigator, PI	Dr Giuseppe Sacco
Abstract	The recently discovered binary system TWA 30 consists of two of the nearestknown examples of actively accreting, pre-MS star systems. Both components ofTWA 30 have masses just above the brown dwarf regime and are orbited bycircumstellar disks viewed nearly edge-on. TWA 30A, a known X-ray source,exhibits large, variable optical/IR extinction that is evidently due to variabledisk absorption. We propose to use XMM to obtain two 75 ks exposures of TWA 30,separated by at least one month. The resulting, merged gratings spectrum of TWA30A and the EPIC CCD spectroscopy obtained at the two epochs for both stars willprovide new constraints for models of pre-MS X-ray emission, and will supplyunique information concerning disk viewing angles, masses, and gas/dust ratios in the TWA 30 system.
Publications	Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift \|Yershov V. N. \| Ap&SS \| 354-97 \| 2014 \| 2014Ap&SS.354...97Y \| http://ui.adsabs.harvard.edu/#abs/2014Ap&SS.354...97Y Evidence for variable correlated X-ray and optical/IR extinction towards the nearby pre-main-sequence binary TWA 30 \|Principe David A. Sacco G. et al. \| MNRAS \| 459-2097 \| 2016 \| 2016MNRAS.459.2097P \| http://ui.adsabs.harvard.edu/#abs/2016MNRAS.459.2097P 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 A new clean catalogue of extragalactic non-nuclear X-ray sources in nearby galaxies \|Earnshaw H. P. Roberts T. P. et al. \| MNRAS \| 483-5554 \| 2019 \| 2019MNRAS.483.5554E \| http://ui.adsabs.harvard.edu/#abs/2019MNRAS.483.5554E 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 impact of precession on the observed population of ULXs \|Khan Norman Middleton Matthew J. et al. \| MNRAS \| 509-2493 \| 2022 \| 2022MNRAS.509.2493K \| http://ui.adsabs.harvard.edu/#abs/2022MNRAS.509.2493K The Redshift Evolution of Ultraluminous X-Ray Sources out to z 0.5: Comparison with X-Ray Binary Populations and Contribution to the Cosmic X-Ray Background \|Scott Barrows R. Comerford Julia M. et al. \| ApJ \| 932-27 \| 2022 \| 2022ApJ...932...27S \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...932...27S 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	2011-06-07T10:17:49Z/2011-07-16T04:04:57Z
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	2012-08-19T00:00:00Z
Last Update	2025-01-27
Keywords	"binary system twa", "actively accreting", "EPIC", "dust ratios", "epic ccd spectroscopy", "twa 30a", "xray source", "ctts binary twa", "brown dwarf regime", "variable optical", "XMM", "xray emission", "merged gratings spectrum", "ir extinction", "variable disk absorption"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Giuseppe Sacco, 2012, 'The X-ray emission of cTTS binary TWA 30', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-pdipgeb