| Name | GT2_hbeuther_3 |
| Title | The Carbon Budget and Formation Signatures of Molecular Clouds |
| URL | http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342250966&instrument_name=HIFI&product_level=LEVEL0&compress=true |
| DOI | https://doi.org/10.5270/esa-50w73ux |
| Author | beuther, h. |
| Description | The interstellar medium (ISM) is mainly comprised of ionized, neutral atomic and molecular gas. One of the most important constituents of these phases is carbon in its ionized/neutral/molecular form (C^+, C^0 and CO). However, a coherent analysis of the different phases at adequate spatial resolution (Jeans length ~0.2pc) is lacking. We therefore want to re-evaluate the ISM carbon budget via observing primarily C^+ at 1.9THz, C^0 (at 492GHz), and CO(2-1) with Herschel, APEX and the IRAM 30m at high spatial resolution (11-13) for several infrared dark clouds (IRDCs). This proposal is a guaranteed time pilot study for the line of ionized carbon CII toward one IRDC that hosts several embedded protostars. We will follow that up in the future with an open time Herschel proposal as well as SOFIA observations. With the combined data of the different carbon phases we can address: (a) How do the relative abundances change with evolutionary stage? (b) Are the different phases mainly excited by internal or external radiation sources? (c) How important are the phase changes for the carbon cooling budget of the ISM? (d) Can we identify cloud formation signatures (e.g., turbulent flows)? |
| Publication |
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| Instrument | HIFI_HifiMapping_load-raster |
| Temporal Coverage | 2012-09-13T22:44:24Z/2012-09-14T03:35:42Z |
| Version | SPG v14.1.0 |
| 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 | 2013-03-14T01:17:09Z |
| 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, beuther et al., 2013, 'The Carbon Budget and Formation Signatures of Molecular Clouds', SPG v14.1.0, European Space Agency, https://doi.org/10.5270/esa-50w73ux |