SIMBAD references

2016ApJ...830..106T - Astrophys. J., 830, 106-106 (2016/October-3)

13C isotopic fractionation of HC3N in star-forming regions: low-mass star-forming region L1527 and high-mass star-forming region G28.28-0.36.


Abstract (from CDS):

We observed the J = 9-8 and 10-9 rotational lines of three 13C isotopologues of HC3N in L1527 and G28.28-0.36, with the 45 m radio telescope of the Nobeyama Radio Observatory, in order to constrain the main formation mechanisms of HC3N in each source. The abundance ratios of the three 13C isotopologues of HC3N are found to be 0.9 (±0.2) : 1.00 : 1.29 (±0.19) (1σ), and 1.0 (±0.2) : 1.00 : 1.47 (±0.17) (1σ), for [H13CCCN : HC13CCN : HCC13CN] in L1527 and G28.28-0.36, respectively. We recognize, from a similar 13C isotopic fractionation pattern, that the abundances of H13CCCN and HC13CCN are comparable, and HCC13CN is more abundant than the others. Based on the results, we discuss the main formation pathway of HC3N. The 13C isotopic fractionation pattern derived from our observations can be explained by the neutral-neutral reaction between C2H2 and CN in both the low-mass (L1527) and high-mass (G28.28-0.36) star-forming regions.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): astrochemistry - ISM: individual objects: L1527, G28.28-0.36 - ISM: molecules - stars: formation - stars: formation

Simbad objects: 8

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