Submillimeter, Millimeter, and Microwave Spectral Line Catalog

Pickett, Herbert M.; Poynter, R. L.; Cohen, E. A.; Delitsky, M. L.; Pearson, J. C.; Müller, H. S. P.

doi:10.1016/s0022-4073(98)00091-0

Cited by 1,948 publications

(1,713 citation statements)

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“…Techniques range from classical absorption set-ups to the use of cavity ringdown spectroscopy to increase the sensitivity by orders of magnitude 24 . Transition frequencies and strengths of (sub)mm transitions are summarized in the Jet Propulsion Laboratory catalog (JPL) 25 and the Cologne Database for Molecular Spectroscopy (CDMS) 26,27 ¶ . Databases for vibrational transitions at infrared wavelengths include the HI-TRAN database 28 and the EXOMOL line lists .…”

Section: Laboratory Experimentsmentioning

confidence: 99%

Astrochemistry of dust, ice and gas: introduction and overview

Dishoeck

Ewine²

2014

Faraday Discuss.

136

102

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A brief introduction and overview of the astrochemistry of dust, ice and gas and their interplay is presented, aimed at non-specialists. The importance of basic chemical physics studies of critical reactions is illustrated through a number of recent examples. Such studies have also triggered new insight into chemistry, illustrating how astronomy and chemistry can enhance each other. Much of the chemistry in star- and planet-forming regions is now thought to be driven by gas-grain chemistry rather than pure gas-phase chemistry, and a critical discussion of the state of such models is given. Recent developments in studies of diffuse clouds and PDRs, cold dense clouds, hot cores, protoplanetary disks and exoplanetary atmospheres are summarized, both for simple and more complex molecules, with links to papers presented in this volume. In spite of many lingering uncertainties, the future of astrochemistry is bright: new observational facilities promise major advances in our understanding of the journey of gas, ice and dust from clouds to planets.Comment: Introductory paper for Faraday Discussions 168 conference, April 201

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Section: Laboratory Experimentsmentioning

confidence: 99%

Astrochemistry of dust, ice and gas: introduction and overview

Dishoeck

Ewine²

2014

Faraday Discuss.

136

102

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show abstract

“…The differences in the spatial distributions of these different groups of COMs are suggestive of multiple COM formation pathways, which may be associated with the theoretically predicted low-temperature gas and ice chemistry, luke-warm ice chemistry, and ice evaporation in hot cores. 29,30 . b Degeneracy in the upper level.…”

Section: Molecular Image Analysismentioning

confidence: 99%

Complex molecule formation around massive young stellar objects

et al. 2014

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Interstellar complex organic molecules were first identified in the hot inner regions of massive young stellar objects (MYSOs), but have more recently been found in many colder sources, indicating that complex molecules can form at a range of temperatures. Individually these observations provide limited constraints, however, on how complex molecules form, and whether the same formation pathways dominate in cold, warm and hot environments. To address these questions, we use spatially resolved observations from the Submillimeter Array of three MYSOs together with mostly unresolved literature data to explore how molecular ratios depend on environmental parameters, especially temperature. Toward the three MYSOs, we find multiple complex organic emission peaks characterized by different molecular compositions and temperatures. In particular, CH 3 CCH and CH 3 CN seem to always trace a luke-warm (T∼60 K) and a hot (T>100 K) complex chemistry, respectively. These spatial trends are consistent with abundance-temperature correlations of four representative complex organics -CH 3 CCH, CH 3 CN, CH 3 OCH 3 and CH 3 CHO -in a large sample of complex molecule hosts mined from the literature. Together these results indicate a general chemical evolution with temperature, i.e. that new complex molecule formation pathways are activated as a MYSO heats up. This is qualitatively consistent with model predictions. Furthermore, these results suggest that ratios of complex molecules may be developed into a powerful probe of the evolutionary stage of a MYSO, as well as provide information about its formation history.

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“…It was updated with data from the recent HITRAN (Rothman et al, 2009 and TIPS (Total Internal Partition Sums; Fischer et al, 2003;Laraia et al, 2011) editions, which introduced a number of new species and isotopologues. Some further species not (yet) in HITRAN but required for the planetary toolbox have been added with species data (molecular mass, isotopologue ratio, partition function information) taken from the JPL spectroscopic database (Pickett et al, 1998, retrieved from http://spec.jpl.nasa.gov/ (last access: September 2013)) or from educated guesses. The latter regards species that were rated as being of interest in the atmospheres of the toolbox planets and for which spectroscopic line data have been collected (e.g., C 3 H 8 ) but also inert species that are required for the planet-suitable line broadening and shift algorithm introduced (e.g., He).…”

Section: Line Cataloguementioning

confidence: 99%

ARTS, the Atmospheric Radiative Transfer Simulator – version 2.2, the planetary toolbox edition

Buehler¹,

Mendrok²,

Eriksson³

et al. 2018

Geosci. Model Dev.

140

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Abstract. This article describes the latest stable release (version 2.2) of the Atmospheric Radiative Transfer Simulator (ARTS), a public domain software for radiative transfer simulations in the thermal spectral range (microwave to infrared). The main feature of this release is a planetary toolbox that allows simulations for the planets Venus, Mars, and Jupiter, in addition to Earth. This required considerable model adaptations, most notably in the area of gaseous absorption calculations. Other new features are also described, notably radio link budgets (including the effect of Faraday rotation that changes the polarization state) and the treatment of Zeeman splitting for oxygen spectral lines. The latter is relevant, for example, for the various operational microwave satellite temperature sensors of the Advanced Microwave Sounding Unit (AMSU) family.

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Submillimeter, Millimeter, and Microwave Spectral Line Catalog

Cited by 1,948 publications

References 0 publications

Astrochemistry of dust, ice and gas: introduction and overview

Astrochemistry of dust, ice and gas: introduction and overview

Complex molecule formation around massive young stellar objects

ARTS, the Atmospheric Radiative Transfer Simulator – version 2.2, the planetary toolbox edition

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