| Name | OT1_jtobin_1 |
| Title | Protostellar Envelopes Resolved Inside and Out: A Close Look in the Far-IR |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342224922&instrument_name=SPIRE&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-b7s7n1p |
| Author | tobin, j. |
| Description | We propose to use Herschel PACS and SPIRE observations to develop a detailedcharacterization of the envelope temperature and density structure in four nearby (d ~ 200-300 pc) protostars. This will enable us to understand howthe non-axisymmetric structure in the surrounding dusty envelopes affectsthe infall process and the structure of the inner envelope. The goal of thisproposal is to take advantage of the superb spatial resolution in the far-IRand sub-millimeter to constrain envelope densities and temperatures over thewide range of spatial scales involved in protostar formation. The proposed observations will resolve the warm inner envelope around these protostars with PACS and map the cold outer envelope with PACS and SPIRE with unparalleledsensitivity and resolution. The multi-band Herschel data enable us to construct dust temperature and density maps which we will combine with our existing Spitzer/near-IR dust extinction maps and measurements of envelope mass and morphology. We will interpret our observations using radiative transfer models to provide the most comprehensive characterizations of protostellar envelope density and temperature structures with which to confront theory. |
| Publication |
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| Instrument | PACS_PacsPhoto_largeScan, SPIRE_SpirePhoto_large |
| Temporal Coverage | 2011-07-28T15:54:13Z/2011-09-22T07:57:21Z |
| 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 | 2012-03-22T00:00:00Z |
| 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, tobin et al., 2012, 'Protostellar Envelopes Resolved Inside and Out: A Close Look in the Far-IR', SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-b7s7n1p |