2001NewA....6..393A

Query : 2001NewA....6..393A

2001NewA....6..393A - New Astronomy, 6, 393-401 (2001/September-0)

Gas-phase shock chemistry of the young bipolar outflow L1157.

AMIN M.Y.

Abstract (from CDS):

We have studied the production of the key observed species in the bipolar outflow L1157. This is carried out using two-fluid MHD of C-type shocks propagating in a molecular cloud model of density 104 cm-3 with shock speeds of 10≤Vs≤25 km s-1 and the magnetic induction 20≤B≤200 µG. Using an extensive chemical network with the most updating reaction rates, the main results show that the calculated fractional abundances is in agreement with observation assuming shock velocity Vs=20 km s-1 and magnetic induction B=22 µG.

Abstract Copyright: ∼

Journal keyword(s): Molecular processes - ISM: molecules - ISM: individual: L1157 - ISM: abundances - Shock waves

CDS comments: Peaks B1 and B2 are [TB95] B1 and [TB95] B2

Simbad objects: 4

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Number of rows : 4
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 NAME LDN 1157-mm Y*O 20 39 06.2 +68 02 15           ~ 204 0
2 LDN 1157 DNe 20 39 06.4 +68 02 13           ~ 606 0
3 [DE95] LDN 1157 B2 out 20 39 09.3 +68 00 44           ~ 80 0
4 [DE95] LDN 1157 B1 out 20 39 11 +68 01.3           ~ 288 0

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