Detection of interstellar PN - The first identified phosphorus compound in the interstellar medium

Details Detection of interstellar PN - The first identified phosphorus compound in the interstellar medium Detection of interstellar PN - The first identified phosphorus compound in the interstellar medium

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...321l..75t&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 321, Oct. 1, 1987, p. L75-L79.

Other

53

Interstellar Chemistry, Interstellar Matter, Molecular Spectra, Phosphorus Compounds, Abundance, Molecular Clouds, Molecular Rotation, Nitrides

Scientific paper

Interstellar PN has been identified in Ori (KL), W51M, and Sgr B2, by observations of its J = 2-1, 3-2, and 5-4 rotational transitions. PN appears to occur in regions of relatively high excitation, with fractional abundances of (1-10) x 10 to the -11th. Ion-molecule gas-phase reactions involving P at low temperatures cannot account for the observed PN abundances, especially when combined with upper limits for interstellar PO. Other processes, such as high-temperature gas-phase reactions (unlikely) or grain disruption, seem necessary to explain interstellar PN.

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