2017MNRAS.469..916B

Query : 2017MNRAS.469..916B

2017MNRAS.469..916B - Mon. Not. R. Astron. Soc., 469, 916-929 (2017/July-3)

The emission structure of formaldehyde megamasers.

BAAN W.A., AN T., KLOCKNER H.-R. and THOMASSON P.

Abstract (from CDS):

The formaldehyde megamaser emission has been mapped for the three host galaxies IC 860, IRAS 15107+0724 and Arp 220. Elongated emission components are found at the nuclear centres of all galaxies with an extent ranging between 30 and 100 pc. These components are superposed on the peaks of the nuclear continuum. Additional isolated emission components are found superposed in the outskirts of the radio continuum structure. The brightness temperatures of the detected features ranges from 0.6 to 13.4 x 104 K, which confirms their masering nature. The masering scenario is interpreted as amplification of the radio continuum by foreground molecular gas that is pumped by far-infrared radiation fields in these starburst environments of the host galaxies.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): masers - stars: formation - ISM: molecules - galaxies: individual: (IC 860, IRAS 15107+0724, Arp 220) - galaxies: ISM - radio lines: ISM - radio lines: ISM

CDS comments: Misprints: IRAS 17207-0054 = IRAS 17208-0014; IRAS 15234+2354 = IRAS 15327+2340.

Simbad objects: 14

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Number of rows : 14
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 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1476 3
2 NGC 3628 LIN 11 20 17.018 +13 35 22.16   10.42 9.48 9.22   ~ 853 3
3 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
4 IC 860 LIN 13 15 03.51 +24 37 07.8   14.8       ~ 236 0
5 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
6 Z 271-60 Sy2 13 44 42.1883001099 +55 53 13.596220922   15.68 14.91     ~ 958 3
7 Mrk 668 BLL 14 07 00.39441712 +28 27 14.6901341   16.13 15.35 10.29   ~ 826 3
8 QSO B1509+054 Bla 15 11 41.26637844 +05 18 09.2590927   18.49 17.80 13.95   ~ 122 0
9 Z 49-57 rG 15 13 13.1083645335 +07 13 32.099256087   15.5       ~ 252 1
10 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
11 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1734 2
12 LEDA 60189 LIN 17 23 21.96264 -00 17 00.8088   15.1       ~ 454 0
13 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2443 1
14 IRAS 18566+0408 Y*O 18 59 09.95520 +04 12 15.6240           ~ 143 0

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