2010ApJ...724L.158S

Query : 2010ApJ...724L.158S

2010ApJ...724L.158S - Astrophys. J., 724, L158-L160 (2010/December-1)

Discovery of the first methanol (CH3OH) maser in the Andromeda galaxy (M31).

SJOUWERMAN L.O., MURRAY C.E., PIHLSTROM Y.M., FISH V.L. and ARAYA E.D.

Abstract (from CDS):

We present the first detection of a 6.7 GHz Class II methanol (CH3OH) maser in the Andromeda galaxy (M31). The CH3 OH maser was found in a VLA survey during the fall of 2009. We have confirmed the methanol maser with the new EVLA, in operation since 2010 March, but were unsuccessful in detecting a water maser at this location. A direct application for this methanol maser is the determination of the proper motion of M31, such as was previously obtained with water masers in M33 and IC10. Unraveling the three-dimensional velocity of M31 would solve for the biggest unknown in the modeling of the dynamics and evolution of the Local Group of galaxies.

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Journal keyword(s): galaxies: individual: M31 - galaxies: ISM - Local Group - masers

Simbad objects: 10

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Number of rows : 10
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 IC 10 G 00 20 25.50 +59 17 17.0   13.6 9.5     ~ 1119 1
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12650 1
3 NAME M31* Rad 00 42 44.33 +41 16 08.4           ~ 40 0
4 IRAS 00416+4104 FIR 00 44 25.4 +41 21 09           ~ 1 0
5 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11149 1
6 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5838 1
7 NAME W 3 OH HII 02 27 04.1 +61 52 22           ~ 1028 2
8 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7066 0
9 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17434 0
10 NAME Local Group GrG ~ ~           ~ 8391 0

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