A dataset provided by the European Space Agency

Name SDP_cceccare_3
Title HIFI Spectral Surveys of Star Forming Regions


DOI 10.5270/esa-j7h0fis
Author ceccarelli, c.
Description Study of the molecular content of regions far beyond our Solar System has advanced enormously during the last few decades, from the first detections of diatomic molecules to the discovery of polyatomic, complex organic molecules. Nowadays, one major goal of Astrochemistry is to have the most accurate census of the molecular content (and complexity) in Star Forming Regions (SFRs). In the era of the molecular content census, unbiased spectral surveys in the radio to Infrared of SFRs have become a fundamental and necessary tool in modern astrochemistry research. In this context, the frequency range covered by HSO-HIFI, 500-2000 GHz, is of particular importance. It is in this frequency range that light molecules have their ground and low energy transitions, whereas heavier molecules have higher energy transitions. The latter are excited in the warm gas, whereas the former probe the gas at low temperatures as well. It is therefore in the HIFI frequency range that the major gas coolants (notably H _2 O) and some key components of the chemical composition of SFRs emit. We propose to obtain Spectral Surveys in the HSO-HIFI range of a representative sample of SFRs. To have a meaningful coverage of the different evolutionary stages and different masses requires a large amount of time, about 300 hrs. The proposed observations will provide a large dataset of uttermost interest for the entire astronomical community, and, particularly for the study of star formation processes and of the influence of chemistry on star and planet formation. These two basic aspects, a large requested observing time and an output of high archival value, make the present proposal suitable for a HSO Key Program.
Publication Molecular line survey of the high-mass star-forming region NGC 6334I with Herschel-HIFI and the Submillimeter Array . Zernickel A. et al. . Astronomy & Astrophysics, Volume 546, id.A87, 31 pp. . 546 . 10.1051\/0004-6361\/201219803 . 2012A&A...546A..87Z ,
Herschel-HIFI discovery of interstellar chloronium (H2Cl+) . Lis D. C. et al. . Astronomy and Astrophysics, Volume 521, id.L9, 5 pp. . 521 . 10.1051\/0004-6361\/201014959 . 2010A&A...521L...9L ,
Herschel-HIFI observations of spectrally resolved methylidyne signatures toward the high-mass star-forming core NGC 6334I . van der Wiel M. H. D. et al. . Astronomy and Astrophysics, Volume 521, id.L43, 5 pp. . 521 . 10.1051\/0004-6361\/201015096 . 2010A&A...521L..43V ,
Interstellar bromine abundance is consistent with cometary ices from Rosetta . Ligterink N. F. W. et al. . Astronomy & Astrophysics, Volume 614, id.A112, 8 pp. . 614 . 10.1051\/0004-6361\/201732325 . 2018A&A...614A.112L ,
Ionization toward the high-mass star-forming region NGC 6334 I . Morales Ortiz Jorge L. et al. . Astronomy & Astrophysics, Volume 563, id.A127, 11 pp. . 563 . 10.1051\/0004-6361\/201322071 . 2014A&A...563A.127M ,
The Abundance, Ortho-Para Ratio, and Deuteration of Water in the High-mass Star-forming Region NGC 6334 I . Emprechtinger M. et al. . The Astrophysical Journal, Volume 765, Issue 1, article id. 61, 13 pp. (2013). . 765 . 10.1088\/0004-637X\/765\/1\/61 . 2013ApJ...765...61E ,
Instrument HIFI_HifiFS_freq
Temporal Coverage 2010-02-28T22:03:59Z/2010-03-07T02:25:24Z
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 ┬Ám range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2010-05-01T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2010-05-01T00:00:00Z, SDP_cceccare_3, SPG v14.1.0. https://doi.org/10.5270/esa-j7h0fis