2000MNRAS.317L...6S

Query : 2000MNRAS.317L...6S

2000MNRAS.317L...6S - Mon. Not. R. Astron. Soc., 317, L6-L10 (2000/September-1)

Detection of HCO+ towards Cygnus OB2 No. 12.

SCAPPINI F., CECCHI-PESTELLINI C., CODELLA C. and DALGARNO A.

Abstract (from CDS):

HCO+ has been detected for the first time towards the star Cygnus OB2 No. 12 through emission of the 1-0 rotational transition at 89GHz. The CO(J=2-1) transition has also been observed. The observations are consistent with a model of dense regions embedded in a low-density clump gas. If actually present, the dense component would have an aggregate size L≤1300au, in agreement with estimates of small-scale density fluctuations observed along diffuse lines of sight.

Abstract Copyright: 2000, Royal Astronomical Society

Journal keyword(s): stars: individual: Cygnus OB2 No. 12 - ISM: abundances - ISM: clouds - ISM: molecules

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 - 2026 		#notes
1 Schulte 12 s*b 20 32 40.9572199728 +41 14 29.279036940 16.1 14.45 11.702     B3-4Ia+ 453 0
2 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 1023 0

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