| Name | OT1_bmatthew_4 |
| Title | Testing Planetary Dynamics and Evolutionary History in the HR 8799 Planet/Disc System |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342223848&instrument_name=PACS&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-7q2rjb6 |
| Author | matthews, b. |
| Description | We propose to map the debris disc associated with the multi-planetsystem HR 8799 in order to constrain the current dynamical state ofthe planetary system and refine models for dust production in thedisc, thereby testing models for the origins of the three known giantplanets. Herschels sensitivity and resolution make it possible toimage both the cold planetesimal disc (posited to lie between radii of90-300 AU) as well as the fainter extended halo (300 - 1000 AU radius)at multiple wavelengths. Direct detection of the edges of the coldbelt of dust and an independent measure of the systems inclinationwill provide critical constraints on models of the planetary orbitswithin the system, particularly for the outer-most planet for whichmass and orbit information can be constrained by simultaneous fits tothe planet and disc.The combination of three massive, coeval, and spectroscopicallycharacterizable planets, together with the dust disc, makes thissystem a Rosetta Stone for planet formation studies. The disc is also important for differentiating between planet formation scenarios.Models predict variations in resonance structure for migration versusin situ formation, and multi-wavelength variations inobserved structure within Herschels wavelength range in the case ofplanetary migration. This proposal is at the very heart of Herschelstop science goal of understanding the mechanisms involved in theformation of stars and planetary bodies. The resolution, sensitivityand multi-wavelength imaging of Herschel are crucial to this program. |
| Publication |
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| Instrument | PACS_PacsPhoto_largeScan, SPIRE_SpirePhoto_small |
| Temporal Coverage | 2011-07-09T22:10:08Z/2011-12-18T11:16:20Z |
| 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. |
| Creator Contact | https://support.cosmos.esa.int/h®erschel/ |
| Date Published | 2012-06-18T11:13:31Z |
| Last Update | 2026-03-02 |
| Keywords | Herschel Space Observatory data, ESA Herschel mission dataset, far-infrared astronomy observations, submillimeter astronomy data, infrared space telescope observations, PACS photometer data, PACS spectrometer data, SPIRE photometer data, SPIRE Fourier transform spectrometer data, HIFI heterodyne spectroscopy data, far-infrared spectroscopy dataset, submillimeter spectral line observations, cold universe observations dataset, star formation infrared data, molecular cloud far-infrared observations, interstellar medium spectroscopy data, protoplanetary disk infrared observations, galaxy evolution far-infrared data, dust emission submillimeter observations, cosmic infrared background measurements, extragalactic infrared survey data, calibrated level 2 data products, FITS files astronomy, spectral cubes far-infrared, flux-calibrated maps, continuum photometry data, spectral energy distribution measurements, ESA Herschel Science Archive data |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, matthews et al., 2012, 'Testing Planetary Dynamics and Evolutionary History in the HR 8799 Planet/Disc System', SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-7q2rjb6 |