Detection of C6H- toward the Low-Mass Protostar IRAS 04368+2557 in L1527

Details Detection of C6H- toward the Low-Mass Protostar IRAS 04368+2557 in L1527 Detection of C6H- toward the Low-Mass Protostar IRAS 04368+2557 in L1527

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apj...667l..65s&link_type=abstract

The Astrophysical Journal, Volume 667, Issue 1, pp. L65-L68.

Astronomy and Astrophysics

Astronomy

37

Ism: Individual: Alphanumeric: L1527, Ism: Molecules

Scientific paper

We have detected the J=7-6, 8-7, and 15-14 lines of C6H- toward a low-mass star-forming region of L1527. We have also detected the J=15/2-13/2 and 33/2-31/2 lines of the corresponding neutral species, C6H, and the 81,8-71,7 line of C6H2 in L1527. This is the first detection of these three species in star-forming regions. The column density of C6H- is (5.8+/-1.8)×1010 cm-2, which is comparable to that in TMC-1, although the column density of C6H in L1527 is about 1/5 of that in TMC-1. Hence, the N(C6H-)/N(C6H) ratio is 0.093+/-0.029, which is higher than that in TMC-1 by a factor of 4. This high anion-to-neutral ratio is discussed in terms of a simplified chemical model.

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