A dataset provided by the European Space Agency

Name OT2_amoor_4
Title A census of debris disks in nearby young moving groups with Herschel.
URL

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DOI 10.5270/esa-wh0c27s
Author moor, a.
Description Nearly all young stars harbour circumstellar disks, that serve as the reservoir for mass accretion onto the star, and later become the birthplace of planetary systems. After the disappearance of the gas component from the disk a dusty debris disk is formed that is believed to mark the location of the planetesimal belt as well. For outlining the evolution of such debris disks traditionally open clusters and field stars were studied, however we argue that the recently discovered young moving groups are more suitable objects for such analyses, due to their proximity and good coverage of the first 50 Myr period of the planetary system evolution. In this proposal we request 70-160 um Herschel-PACS photometric observations for so-far unobserved moving group members. These observations will provide a complete coverage of all known members within 80 pc of five nearby young moving groups (beta Pic Moving Group, Tucana-Horologium, Carina, Columba, and Argus), in the A to K spectral range. Based on the new observations we will identify new debris disks, characterize the disk population within individual moving groups, and study disk evolution by comparing the groups of different ages. The results will be used to verify predictions of the self-stirring model of the evolution of planetesimal disks. We will also compare the properties of debris disks in groups of the same age, looking for additional .environmental. parameters that affect disk structure over a whole moving group. Our study will be a significant contribution to the census of debris disks in young moving groups, increasing the number of observed sources by a factor of 1.5. Since Spitzer could perform only a limited census and the so-far approved Herschel programs added very few additional moving group obervations, our programme is expected to have a high legacy value.
Publication New Debris Disks in Nearby Young Moving Groups . Moór A. et al. . The Astrophysical Journal, Volume 826, Issue 2, article id. 123, 16 pp. (2016). . 826 . 10.3847\/0004-637X\/826\/2\/123 . 2016ApJ...826..123M ,
Instrument PACS_PacsPhoto_largeScan
Temporal Coverage 2013-02-20T11:05:58Z/2013-04-27T03:57:32Z
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 µm range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2013-10-27T03:48:14Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-10-27T03:48:14Z, OT2_amoor_4, SPG v14.2.0. https://doi.org/10.5270/esa-wh0c27s