2001A&A...368..712D

Query : 2001A&A...368..712D

2001A&A...368..712D - Astronomy and Astrophysics, volume 368, 712-715 (2001/3-3)

Laboratory and astrophysical detection of the hyperfine structure of the (J) = 1-0 rotational transition of HC17O+.

DORE L., CAZZOLI G. and CASELLI P.

Abstract (from CDS):

The three hyperfine components of the J=1←0 rotational transition of HC17O+ have been resolved in laboratory leading to a value of the quadrupole coupling constant eQq of 4.595 MHz, which is far below the previous estimate of an upper limit of 12 MHz by Guelin et al. (1982ApJ...263L..89G). The HC17O+ (1-0) spectrum has been observed toward the ``molecular peak'' of L1544 and analyzed on the basis of the laboratory hyperfine frequencies.

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Journal keyword(s): molecular data - methods: laboratory - ISM: individual (L1544), molecules - radio lines: ISM

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 LDN 1544 DNe 05 04 16.6 +25 10 48           ~ 862 0
2 NAME [BM89] L1544 cor 05 04 22.5 +25 11 36           ~ 437 1

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