| Name | OT1_vgeers_2 |
| Title | Tracing Remnant Gas in Planet Forming Debris Disks : Confronting Theories of Ice-Giant Planet Formation |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342212530&instrument_name=PACS&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-gzbcpif |
| Author | geers, v. |
| Description | Recent studies of gas emission lines with Spitzer and sub-millimeter telescopes have shown that 10-100 Myr old stars with debris disks have too little gas left to form Jupiter like gas giant planets. Whether enough gas remains in these systems to form ice giant planets is still unanswered. The OI emission line at 63 micron is the most sensitive tracer of gas in the ice-giant region of 10-50 AU in disks, and Herschel PACS is therefore uniquely suited to test theories of ice-giant planet formation.We propose to obtain PACS line spectroscopy of OI (63 micron) for a carefully selected sample of four young stars from the FEPS Spitzer Legacy Science Program with ages from 10 to 100 Myr. These extremely well systems harbour prominent debris disks that could be in the process of forming ice giants such as Neptune and Uranus. The proposed observations will probe down to gas masses of 0.3-4 Earth masses, and allow us to constrain prospects for ice giant formation, measure gas-to-dust ratios of 1-10 in evolved disks to compare with planet formation / disk evolution models, and put constraints on whether the dust dynamics in these systems is driven by the remnant gas or by the radiation. |
| Publication |
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| Instrument | PACS_PacsLineSpec_point |
| Temporal Coverage | 2011-01-11T12:04:31Z/2011-10-12T14:33:48Z |
| 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 | 2012-04-12T13:23:44Z |
| Last Update | 2026-07-09 |
| 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, geers et al., 2012, 'Tracing Remnant Gas in Planet Forming Debris Disks : Confronting Theories of Ice-Giant Planet Formation', SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-gzbcpif |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |