2020ApJS..247....5Q


Query : 2020ApJS..247....5Q

2020ApJS..247....5Q - Astrophys. J., Suppl. Ser., 247, 5-5 (2020/March-0)

Accurate OH maser positions from the SPLASH survey. III. The final 96 deg2.

QIAO H.-H., BREEN S.L., GOMEZ J.F., DAWSON J.R., WALSH A.J., GREEN J.A., ELLINGSEN S.P., IMAI H. and SHEN Z.-Q.

Abstract (from CDS):

We present high spatial resolution observations of ground-state OH masers achieved with the Australia Telescope Compact Array (ATCA). These observations targeted 253 pointing centers containing OH maser candidates at all four ground-state OH transitions identified in the Southern Parkes Large-Area Survey in Hydroxyl (SPLASH) across 96 deg2 of the southern Galactic plane (332° < l < 334° and -2° < b < +2°, 344° < l < 355° and -2° < b < +2°, 358° < l < 4° and +2° < b < +6°, 5° < l < 10° and -2° < b < +2°). We detect maser emission toward 236 fields and suggest that 7 out of 17 nondetections are due to the slightly lower sensitivity of the ATCA observations, combined with some temporal variability. The superior resolution provided by the ATCA data has allowed us to identify 362 OH maser sites in the 236 target fields. Almost half (160 of 362) of these masers have been detected for the first time. Comparison between these 362 maser sites and information presented in the literature allowed us to categorize 238 sites as evolved star sites (66%), 63 as star formation (17%), 8 as supernova remnants, and 53 as unknown maser sites (15%). We present an analysis of the OH masers across the full SPLASH survey range (176 deg2) and find that the detection rate of 1.7 GHz radio continuum sources (18%) is lower than that previously found at 8.2 and 9.2 GHz (38%). We also find that the velocity separations of evolved star sites with symmetric 1612 MHz maser profiles are generally smaller than those with asymmetric profiles.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Catalogs - Interstellar molecules - Circumstellar masers - Interstellar masers - Star formation - Asymptotic giant branch stars - Post-asymptotic giant branch

VizieR on-line data: <Available at CDS (J/ApJS/247/5): table1.dat>

Status at CDS : Tables of objects will be appraised for possible ingestion in SIMBAD.

Simbad objects: 48

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Number of rows : 48
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 ICRF J082526.8-501038 QSO 08 25 26.86900 -50 10 38.4877   20.94       ~ 114 1
2 IRAS 16041-4912 * 16 07 54.132 -49 20 26.82           ~ 7 0
3 IRAS 16084-5002 LP? 16 12 14.2028811937 -50 09 48.675579530           ~ 3 0
4 3FGL J1617.4-5846 AGN 16 17 17.8913859288 -58 48 07.860059063   18.23       ~ 107 1
5 IRAS 16183-4958 IR 16 22 09.0 -50 06 00           ~ 16 0
6 IRAS 16333-4807 PN 16 37 06.0114937993 -48 13 42.998107141           ~ 17 1
7 WOS 69 s?r 17 03 21.7006160321 -41 21 59.088088713     16   11.74 M3: 14 1
8 V* V605 Sco Mi* 17 06 27.5783688987 -40 30 26.716411101           ~ 5 0
9 IRAS 17048-3832 AB* 17 08 16.1680167735 -38 36 05.289535369           ~ 4 0
10 SNR G346.6-00.2 SNR 17 10.3 -40 11           ~ 83 0
11 OH 345.05 -1.86 pA* 17 12 22.806 -42 25 09.82           ~ 32 0
12 QSO J1713-2658 QSO 17 13 31.2755946 -26 58 52.526747   19.65       ~ 36 1
13 NGC 6302 PN 17 13 44.339 -37 06 10.95   7.1 10.10     ~ 764 1
14 IRAS 17104-3601 * 17 13 49.1679832487 -36 04 33.171484515           ~ 2 0
15 SNR G348.5+00.1 SNR 17 14 31.780 -38 28 34.50           ~ 202 3
16 V* V1013 Sco OH* 17 16 15.977 -37 52 04.62           ~ 16 0
17 IRAS 17130-4029 pA* 17 16 29.04 -40 32 30.9           ~ 9 0
18 SNR G349.7+00.2 SNR 17 18 10.160 -37 18 53.80           ~ 173 0
19 OH 349.96 -0.03 LP* 17 19 29.23680 -37 21 35.6868           ~ 14 0
20 IRAS 17195-2710 pA* 17 22 43.6494429055 -27 13 36.948295653           ~ 22 0
21 IRAS 17197-3517 OH* 17 23 06.44616 -35 19 58.2780           O-rich 5 0
22 IRAS 17220-2448 OH* 17 25 07.2 -24 51 03           ~ 6 0
23 IRAS 17240-3449 * 17 27 23.7412639174 -34 52 13.889462185           ~ 4 1
24 OH 354.88 -0.54 OH* 17 35 02.72136 -33 33 29.4120           O-rich 66 1
25 IRAS 17337-2514 AB* 17 36 51.4406633861 -25 16 26.071299830           ~ 6 0
26 IRAS 17347-2653 IR 17 37 53.7 -26 54 47           ~ 3 0
27 IRAS 17349-2444 mul 17 38 01.8 -24 46 00           ~ 6 0
28 [RHI84] 8-509 OH* 17 38 54.8105260444 -34 59 28.429972423     14.00     M8 8 0
29 V* V545 Oph Mi* 17 39 46.0662662492 -23 21 24.070695632           O-rich 17 1
30 IRAS 17381-2346 OH* 17 41 11.8 -23 48 28           ~ 2 0
31 IRAS 17382-2531 OH* 17 41 20.1 -25 32 53           ~ 7 0
32 IRAS 17399-2448 OH* 17 43 01.3 -24 49 33           ~ 2 0
33 ICRF J174425.4-514443 AGN 17 44 25.45077 -51 44 43.7930     20.2     ~ 81 1
34 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12380 0
35 IRAS 17428-2438 OH* 17 45 56.8 -24 40 00           ~ 7 0
36 IRAS 17560-2027 mul 17 59 04.5 -20 27 24           ~ 13 0
37 SNR G006.4-00.1 SNR 18 01 22.7 -23 17 20           ~ 675 1
38 V* V4120 Sgr Mi* 18 03 56.5274480513 -20 19 00.548209730     17     M8 59 0
39 IRC -20427 s*r 18 05 35.4932917859 -21 13 42.219485368     12 10.46   M3/4I 33 0
40 OH 9.055 -0.156 OH* 18 06 22.626 -21 11 27.39           ~ 8 0
41 OH 9.097 -0.392 OH* 18 07 20.861 -21 16 10.86           ~ 33 0
42 MSX6C G006.6143-01.9021 NIR 18 07 50.3748440834 -24 10 21.681261180           ~ 2 0
43 V* VX Sgr s*r 18 08 04.0431479808 -22 13 26.629744195 11.72 9.41 6.52 3.90 2.11 M8.5Ia 567 0
44 OH 6.59 -2.01 OH* 18 08 12.819 -24 14 36.73           ~ 15 0
45 IRAS 18070-2332 IR 18 10 04.4 -23 32 12           ~ 4 0
46 PN Vy 2-2 PN 19 24 22.2390166933 +09 53 56.259102426   14.02 12.65 13.38   ~ 252 0
47 PN K 3-35 PN 19 27 43.9751068155 +21 30 02.898607561           ~ 136 0
48 ICRF J193925.0-634245 Sy2 19 39 25.02671 -63 42 45.6255   18.87 18.37 17.64   ~ 1037 1

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2021.09.17-23:54:44

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