2018MNRAS.477..525M

Query : 2018MNRAS.477..525M

2018MNRAS.477..525M - Mon. Not. R. Astron. Soc., 477, 525-530 (2018/June-2)

Detection of HOCO+ in the protostar IRAS 16293-2422.

MAJUMDAR L., GRATIER P., WAKELAM V., CAUX E., WILLACY K. and RESSLER M.E.

Abstract (from CDS):

The protonated form of CO2, HOCO+, is assumed to be an indirect tracer of CO2 in the millimeter/submillimeter regime since CO2 lacks a permanent dipole moment. Here, we report the detection of two rotational emission lines (40,4-30,3 and 50,5-40,4) of HOCO+ in IRAS 16293-2422. For our observations, we have used EMIR heterodyne 3 mm receiver of the IRAM 30 m telescope. The observed abundance of HOCO+ is compared with the simulations using the 3-phase NAUTILUS chemical model. Implications of the measured abundances of HOCO+ to study the chemistry of CO2 ices using JWST-MIRI and NIRSpec are discussed as well.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): astrochemistry - methods: statistical - ISM: abundances - ISM: evolution - ISM: molecules

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 IRAS 16293-2422B Y*O 16 32 22.63 -24 28 31.8           ~ 352 0
2 NAME IRAS 16293-2422A Y*O 16 32 22.869 -24 28 36.11           ~ 207 0
3 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
4 [DE95] LDN 1157 B1 out 20 39 11 +68 01.3           ~ 288 0

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