A dataset provided by the European Space Agency

Name: The Gas-to-Dust Ratio in Disks around T Tauri Stars
Published: 2008-11-14T00:00:00Z

Proposal ID	050210
Title	The Gas-to-Dust Ratio in Disks around T Tauri Stars
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502100101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502100201
DOI	https://doi.org/10.5270/esa-b644rge
Principal Investigator, PI	Dr Manuel Guedel
Abstract	The gas-to-dust (G/D) mass ratio in circumstellar disks may deviate from thestandard interstellar ratio (100:1) as a consequence, e.g., of dust settling inthe disk. We propose to study a sample of large disks around classical T Taustars to determine the G/D along the sightlines toward the central stars. Weapply state-of-the-art 3-D modeling of the geometry and composition of the dustdisk based on optical and infrared imaging, photometry and polarimetry. We willderive the gas column density along the sightlines toward the star by measuringthe photoelectric absorption in X-ray spectra. We have tested the method in apilot study on a low-mass T Tau star in Taurus. Molecular Cloud. Here, werequest observing time for three objects.
Publications	On the origin of NeII 12.81 mum emission from pre-main sequence stars: Disks jets and accretion \|Gudel M. Lahuis F. et al. \| A&A \| 519-113 \| 2010 \| 2010A&A...519A.113G \| http://ui.adsabs.harvard.edu/#abs/2010A&A...519A.113G 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 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 High energy irradiated protoplanetary disks : the X-rays and FUV role in thermo-chemical modeling \|Aresu Giambattista \| PhDT \| 0-81 \| 2012 \| 2012PhDT........81A \| http://ui.adsabs.harvard.edu/#abs/2012PhDT........81A 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 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	2007-09-07T08:31:10Z/2007-09-07T16:03:59Z
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	2008-11-14T00:00:00Z
Last Update	2025-01-27
Keywords	"photoelectric absorption", "standard interstellar ratio", "tau star", "gas column density", "tau stars", "infrared imaging", "central stars", "dust settling", "dust ratio", "tauri stars", "low mass", "circumstellar dis", "dust disk", "molecular cloud", "mass ratio", "xray spectra"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Manuel Guedel, 2008, 'The Gas-to-Dust Ratio in Disks around T Tauri Stars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-b644rge