2017ApJ...841L..14E

Query : 2017ApJ...841L..14E

2017ApJ...841L..14E - Astrophys. J., 841, L14-L14 (2017/May-3)

Detection of HC3N maser emission in NGC 253.

ELLINGSEN S.P., CHEN X., BREEN S.L. and QIAO H.-H.

Abstract (from CDS):

We report the detection of maser emission from the J=4–3 transition of HC3N at 36.4 GHz toward the nearby starburst galaxy NGC 253. This is the first detection of maser emission from this transition in either a Galactic or extragalactic source. The HC3N maser emission has a brightness temperature in excess of 2500 K and is offset from the center of the galaxy by approximately 18'' (300 pc), but close to a previously reported class I methanol maser. Both the HC3N and methanol masers appear to arise near the interface between the galactic bar and the central molecular zone, where it is thought that molecular gas is being transported inwards, producing a region of extensive low-velocity shocks.

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

Journal keyword(s): galaxies: individual: NGC 253 - galaxies: starburst - masers - radio lines: ISM - radio lines: ISM

Nomenclature: Table 1: [ECB2017] A (Nos A-G).

Simbad objects: 18

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Number of rows : 18
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 QSO B0023-263 BLL 00 25 49.15629900 -26 02 12.6141092   20.30 19.5 18.084   ~ 173 1
2 [LMM2011] NGC 253 A MoC 00 47 32.05 -25 17 26.5           ~ 15 0
3 [OWH2005] B MoC 00 47 32.33 -25 17 20.0           ~ 13 0
4 [LMM2011] NGC 253 C MoC 00 47 32.81 -25 17 21.1           ~ 19 0
5 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
6 [LMM2011] NGC 253 D MoC 00 47 33.25 -25 17 16.6           ~ 19 0
7 [LMM2011] NGC 253 E MoC 00 47 33.66 -25 17 12.8           ~ 18 0
8 [LMM2011] NGC 253 F MoC 00 47 34.06 -25 17 11.2           ~ 13 0
9 [LBO2015] 9 MoC 00 47 34.16 -25 17 11.8           ~ 12 0
10 NAME Scl Group GrG 01 00 06 -33 44.2           ~ 526 0
11 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
12 UGCA 39 GiG 02 41 55.092 +59 36 14.73   16       ~ 360 1
13 IC 342 AGN 03 46 48.514 +68 05 45.98   10.5       ~ 1579 1
14 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
15 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2443 1
16 GAL 010.47+00.03 HII 18 08 38.4 -19 51 52           ~ 159 0
17 QSO B1921-293 BLL 19 24 51.05595254 -29 14 30.1210248   18.71 18.21 15.07   ~ 918 1
18 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 3004 2

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