Dusty disks around hot (Teff > 100,000 K) white dwarfs are a new phenomenon discovered by Spitzer. The origin of such a disk is still in debate. We propose to obtain far-infrared photometry for 6 dusty disks around hot WDs identified from our Spitzer 24 micron survey. The Herschel far-infrared measurements will provide strong constraints on the outer boundary of the disk and its total dust mass in the system, crucial information necessary to differentiate the origin of the disks.
Publication
Instrument
PACS_PacsPhoto_largeScan, SPIRE_SpirePhoto_small
Temporal Coverage
2011-06-11T16:48:21Z/2012-04-24T00:38:20Z
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.
European Space Agency, 2012, Dusty Disks Around Hot White Dwarfs: Debris Disks Or Remnant Of Post-Agb Binary Disksquestionmark, SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-dc8tgst