| Name | AOTVAL_bmatthew_2 |
| Title | DEBRIS: Disc Emission via a Bias-free Reconnaissance in the Infrared/Sub-millimetre |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342183659&instrument_name=PACS&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-jlx4bkp |
| Author | European Space Agency |
| Description | Debris discs are belts of dust particles created from collisions of planetesimals (comets and asteroids) in extrasolar planetary systems. The prototype disc around Vega was discovered virgul25 years ago by IRAS, and virgul20 discs have been imaged to date, primarily by HST, SCUBA and Spitzer. Despite the relatively low numbers, debris discs are seen to be extraordinarily diverse in character, including systems with vast populations of comets or with perturbations by planets at tens of AU from the host star. Due to this low number, however, our knowledge of debris discs is incomplete; there has been no unbiased survey specifically designed to image a large number of discs. Spitzer greatly improved our understanding of the disc-rich A stars but the number of detections is still low for solar-analogue FGK stars and especially the numerous M stars. For Herschel, we therefore propose the DEBRIS (..Disc Emission via a Bias-free Reconnaissance in the Infrared/Submillimetre) Key Project which will probe 450 nearby A-M stellar systems for debris and measure Solar System dust levels in debris discs for the first time. The large sample is statistically robust and without bias, providing a rich legacy for debris disc and exo-planet science. This deep, flux-limited survey will obtain PACS 100/160 images of all 450 systems (472 fields due to wide binaries), and it will be possible to resolve discs toward each one with the PACS. high resolution. DEBRIS includes SPIRE imaging in systems where debris is detected with PACS (a rate of 50% is expected). The key science questions are: (a) which kinds of stars have debris and why? (b) what are the sizes, temperatures and masses of the debris discs? (c) what is the relation of resolved disc structures to the exo-planets? and (d) is our Kuiper Belt common or unusual? The Herschel DEBRIS Key Project will answer... these questions using Herschel.s high sensitivity, spectral coverage and resolution. Our team includes world experts in debris discs and exo-planet science from 8 countries. |
| Publication | Pursuing the Planet-Debris Disk Connection: Analysis of Upper Limits from the Anglo-Australian Planet Search . Wittenmyer Robert A. et al. . The Astronomical Journal, Volume 149, Issue 2, article id. 86, 7 pp. (2015). . 149 . 10.1088\/0004-6256\/149\/2\/86 . 2015AJ....149...86W , Does the Presence of Planets Affect the Frequency and Properties of Extrasolar Kuiper Belts? Results from the Herschel Debris and Dunes Surveys . Moro-Martín A. et al. . The Astrophysical Journal, Volume 801, Issue 2, article id. 143, 28 pp. (2015). . 801 . 10.1088\/0004-637X\/801\/2\/143 . 2015ApJ...801..143M , |
| Instrument | PACS_PacsPhoto_point |
| Temporal Coverage | 2009-09-11T18:27:22Z/2009-09-11T19:42:28Z |
| 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/h®erschel/ |
| Date Published | 2009-10-21T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2009, Debris: Disc Emission Via A Bias-Free Reconnaissance In The Infrared/Sub-Millimetre, SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-jlx4bkp |