2017ApJ...846..160Y


Query : 2017ApJ...846..160Y

2017ApJ...846..160Y - Astrophys. J., 846, 160-160 (2017/September-2)

A 6.7 GHz methanol maser survey at high Galactic latitudes.

YANG K., CHEN X., SHEN Z.-Q., LI X.-Q., WANG J.-Z., JIANG D.-R., LI J., DONG J., WU Y.-J., QIAO H.-H. and REN Z.

Abstract (from CDS):

We performed a systematic 6.7 GHz Class II methanol maser survey using the Shanghai Tianma Radio Telescope toward targets selected from the all-sky Wide-Field Infrared Survey Explorer (WISE) point catalog. In this paper, we report the results from the survey of those at high Galactic latitudes, i.e., | b|   2°. Of 1473 selected WISE point sources at high latitude, 17 point positions that were actually associated with 12 sources were detected with maser emission, reflecting the rarity (1%-2%) of methanol masers in the region away from the Galactic plane. Out of the 12 sources, 3 are detected for the first time. The spectral energy distribution at infrared bands shows that these new detected masers occur in the massive star-forming regions. Compared to previous detections, the methanol maser changes significantly in both spectral profiles and flux densities. The infrared WISE images show that almost all of these masers are located in the positions of the bright WISE point sources. Compared to the methanol masers at the Galactic plane, these high-latitude methanol masers provide good tracers for investigating the physics and kinematics around massive young stellar objects, because they are believed to be less affected by the surrounding cluster environment.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): ISM: molecules - masers - radio lines: ISM - stars: formation - stars: formation

VizieR on-line data: <Available at CDS (J/ApJ/846/160): table1.dat table3.dat>

Simbad objects: 13

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Number of rows : 13
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 281 HII 00 52 25.1 +56 33 54           ~ 234 1
2 IRAS 05358+3543 mul 05 39 10.4 +35 45 19           ~ 140 1
3 SH 2-231 HII 05 39 12.9 +35 45 54           ~ 121 0
4 SH 2-235 HII 05 41.1 +35 50           ~ 196 0
5 NAME Mon R2 HII 06 07 47.58 -06 22 42.6           ~ 678 2
6 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12397 0
7 IRAS 18265-1517 out 18 29 24.8 -15 15 49           ~ 60 0
8 IRAS 18277-1516 FIR 18 30 35.3 -15 14 38           ~ 25 0
9 IRAS 20126+4104 Y*O 20 14 25.8816186803 +41 13 36.869078243           B2.5-B0.5 407 0
10 SH 2-128 HII 21 32 10.393 +55 52 42.36   10.8       ~ 164 3
11 NAME Outer Arm PoG 21 48 +69.4           ~ 249 0
12 LDN 1206 DNe 22 28 52.2 +64 13 43           ~ 65 0
13 NAME Cepheus A SFR 22 56 17.9 +62 01 49           ~ 713 2

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2021.09.27-18:11:53

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