A dataset provided by the European Space Agency

Name OT2_tgiesen_1
Title Detection of 13CCC in star forming regions
URL

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DOI https://doi.org/10.5270/esa-mmum96v
Author giesen, t.
Description Study of carbon chain molecules in the ISM is of great importance
owing to the ubiquity of these molecules and their potential role as
the building block of larger molecules or as products of
photo-destruction of larger molecules. However the formation mechanism
of even the simplest linear carbon chain molecule is still not well
understood. The isotopic abundance ratio of C3/13CCC is believed to
be an important probe for the chemical routes for the formation of C3,
which involve C+. Using HIFI/Herschel C3 has for the first time been
detected in the warm envelopes of hot star forming cores (Mookerjea et
al. 2010). This has provided access to a much larger column density of
C3 than was previously possible with optical and/or mid-infrared
studies of C3 in diffuse clouds. The larger column density of C3
implies a higher probability of detecting its rarer isotopologue
13CCC. This detection coupled with the recent success of the Cologne
spectroscopy group in identifying the 13CCC molecule in the laboratory
and accurate determination of frequencies of several nu2 bending mode
ro-vibrational transitions in the far-infrared has set the stage for a
search for 13CCC in the interstellar space. We propose to obtain deep
integrations of the brightest of the spectral lines for 13CCC towards
two very strong continuum sources in both of which C3 has already been
clearly seen in absorption.
Publication
Instrument HIFI_HifiPoint_dbs
Temporal Coverage 2012-05-03T15:00:52Z/2012-10-04T10:17:54Z
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 2013-04-04T09:15:16Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, giesen, t., 2013, OT2_tgiesen_1, SPG v14.1.0, European Space Agency, https://doi.org/10.5270/esa-mmum96v