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Chemical Complexity...
Chemical Complexity of Phosphorous-bearing Species in Various Regions of the Interstellar Medium
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- Sil, Milan (author)
- Indian Centre for Space Physics
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- Srivastav, Satyam (author)
- Banaras Hindu University
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- Bhat, Bratati (author)
- Indian Centre for Space Physics
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- Mondal, Suman Kumar (author)
- Indian Centre for Space Physics
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- Gorai, Prasanta, 1991 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Indian Centre for Space Physics
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- Ghosh, Rana (author)
- Indian Centre for Space Physics
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- Shimonishi, Takashi (author)
- Niigata University
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- Chakrabarti, Sandip K. (author)
- Indian Centre for Space Physics
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- Sivaraman, Bhalamurugan (author)
- Physical Research Laboratory
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- Pathak, Amit (author)
- Banaras Hindu University
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- Nakatani, Naoki (author)
- Tokyo Metropolitan University,Hokkaido University
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- Furuya, Kenji (author)
- National Astronomical Observatory of Japan,University of Tsukuba
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- Das, Ankan (author)
- Indian Centre for Space Physics
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(creator_code:org_t)
- 2021-08-25
- 2021
- English.
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In: Astronomical Journal. - : American Astronomical Society. - 1538-3881 .- 0004-6256. ; 162:3
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http://arxiv.org/pdf...
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Abstract
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- Phosphorus-related species are not known to be as omnipresent in space as hydrogen, carbon, nitrogen, oxygen, and sulfur-bearing species. Astronomers spotted very few P-bearing molecules in the interstellar medium and circumstellar envelopes. Limited discovery of the P-bearing species imposes severe constraints in modeling the P-chemistry. In this paper, we carry out extensive chemical models to follow the fate of P-bearing species in diffuse clouds, photon-dominated or photodissociation regions (PDRs), and hot cores/corinos. We notice a curious correlation between the abundances of PO and PN and atomic nitrogen. Since N atoms are more abundant in diffuse clouds and PDRs than in the hot core/corino region, PO/PN reflects <1 in diffuse clouds, MUCH LESS-THAN1 in PDRs, and >1 in the late warm-up evolutionary stage of the hot core/corino regions. During the end of the post-warm-up stage, we obtain PO/PN > 1 for hot core and <1 for its low-mass analog. We employ a radiative transfer model to investigate the transitions of some of the P-bearing species in diffuse cloud and hot core regions and estimate the line profiles. Our study estimates the required integration time to observe these transitions with ground-based and space-based telescopes. We also carry out quantum chemical computation of the infrared features of PH3, along with various impurities. We notice that SO2 overlaps with the PH3 bending-scissoring modes around similar to 1000-1100 cm(-1). We also find that the presence of CO2 can strongly influence the intensity of the stretching modes around similar to 2400 cm(-1) of PH3.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
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- By the author/editor
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Sil, Milan
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Srivastav, Satya ...
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Bhat, Bratati
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Mondal, Suman Ku ...
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Gorai, Prasanta, ...
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Ghosh, Rana
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Shimonishi, Taka ...
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Chakrabarti, San ...
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Sivaraman, Bhala ...
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Pathak, Amit
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Nakatani, Naoki
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Furuya, Kenji
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Das, Ankan
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Meteorology and ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geology
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Astronomical Jou ...
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Chalmers University of Technology