A dataset provided by the European Space Agency

Name OT1_gherczeg_1
Title A Disk Census for New Low-Mass Members of TWA
URL

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DOI 10.5270/esa-0w0wx06
Author herczeg, g.
Description We propose to conduct a protoplanetary and debris disk survey of 14 recently-identified members of the benchmark (10 Myr) TW Hya Association (TWA). Our new sample expands the member census by tripling of the low-mass population (>M5; <0.2 M_sun). TWA represents a critical age where the longest-lived protoplanetary disks and the youngest debris disks overlap in the same population, so it offers a critical window into the formation and evolution of planetary systems. We specifically propose a PACS 70-160 micron photometric census to identify new disks, and followed by SPIRE 200-250-350 micron photometric observations of all newly-identified disk systems to characterize their SEDs and determine the nature of their circumstellar disks (protoplanetary or debris). Based on the disk fraction among known late-type members (3-6 = 50%), we estimate that 6-7 of our targets are likely to host circumstellar disks; these disks have been incredibly rare until now, so each will be a prime target for future studies of accretion, disk evolution, and planet formation.
Publication Herschel-PACS view of disks around low-mass stars and brown dwarfs in the TW Hydrae association . Liu Yao et al. . Astronomy & Astrophysics, Volume 573, id.A63, 13 pp. . 573 . 10.1051\/0004-6361\/201424721 . 2015A&A...573A..63L ,
Instrument PACS_PacsPhoto_largeScan
Temporal Coverage 2011-07-14T18:07:51Z/2011-12-16T01:21:06Z
Version SPG v14.2.0
Mission Description Herschel was launched on 14 May 2009! It is the fourth 'cornerstone' mission in the ESA science programme. With a 3.5 m Cassegrain telescope it is the largest space telescope ever launched. It is performing photometry and spectroscopy in approximately the 55-671 ┬Ám range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2012-06-16T01:17:26Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012-06-16T01:17:26Z, OT1_gherczeg_1, SPG v14.2.0. https://doi.org/10.5270/esa-0w0wx06