2006ApJ...653L..45F

Query : 2006ApJ...653L..45F

2006ApJ...653L..45F - Astrophys. J., 653, L45-L48 (2006/December-2)

Observations of the 6 cm lines of OH in evolved (OH/IR) stars.

FISH V.L., ZSCHAECHNER L.K., SJOUWERMAN L.O., PIHLSTROM Y.M. and CLAUSSEN M.J.

Abstract (from CDS):

Recent observational and theoretical advances have called into question traditional OH maser pumping models in evolved (OH/IR) stars. The detection of excited-state OH lines would provide additional constraints to discriminate among these theoretical models. In this Letter, we report on VLA observations of the 4750 and 4765 MHz lines of OH toward 45 sources, mostly evolved stars. We detect 4765 MHz emission in the star-forming regions Mon R2 and LDN 1084, but we do not detect excited-state emission in any evolved stars. The flux density and velocity of the 4765 MHz detection in Mon R2 suggest that a new flaring event has begun.

Abstract Copyright: ∼

Journal keyword(s): ISM: individual (LDN 1084) - ISM: Individual: Name: Monoceros R2 - Masers - Radio Lines: Stars - Stars: AGB and Post-AGB - Stars: Late-Type

Simbad objects: 49

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Number of rows : 49
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 IRAS 00170+6542 OH* 00 19 51.2821741920 +65 59 30.346600740           O-rich 27 0
2 V* V524 Cas OH* 00 46 00.1369576008 +69 10 53.631070104       10.58   M8III 49 0
3 IRC +10011 OH* 01 06 25.9879717848 +12 35 52.896392052   20.7   18.26 14.01 M8 436 0
4 IRC +30021 OH* 01 11 15.9306739944 +30 38 06.270834804       13.73   M10 85 1
5 V* RT Psc AB* 01 13 47.9460833424 +27 07 58.936900944   9.87 8.50     M0 37 0
6 OH 127.8-00.0 OH* 01 33 51.21048 +62 26 53.2032           O-rich 188 0
7 IRAS 01572+5844 OH* 02 00 45.5605352568 +58 59 11.477050296       14.36   O-rich 15 0
8 V* S Per s*r 02 22 51.7113133056 +58 35 11.422774248 13.22 10.55 7.90     M4.5-7Iae 388 0
9 V* RU Ari OH* 02 44 45.4939002600 +12 19 03.001204056   16.01 14.39 12.75   M10 54 0
10 V* YZ Ari OH* 02 57 27.4829587128 +11 18 05.661911304     12.74     M8 39 0
11 OH 138.0+07.2 OH* 03 25 08.40648 +65 32 07.0584           O-rich 92 1
12 OH 141.7+03.5 OH* 03 33 30.6174715608 +60 20 08.858343228           O-rich 60 0
13 V* IK Tau OH* 03 53 28.8924743304 +11 24 21.895183368 16.99 14.463 16.171 14.101   M7-11 675 0
14 Case 720 C* 04 16 24.2218097520 +39 25 45.146309916       13.47   C 27 0
15 V* BZ Tau OH* 04 42 21.2848861056 +06 52 40.069958556   13.611 12.035 13.455   M4 36 0
16 V* EY Eri Mi* 04 52 57.2508271848 -10 01 58.848307680     13.08     M8 26 0
17 RAFGL 5134 OH* 05 00 24.6068801544 +12 56 06.567059220           O-rich 36 0
18 GAL 174.20-00.08 Cld 05 30 45.9 +33 47 56           ~ 210 2
19 V* V883 Ori Or* 05 38 18.1018261392 -07 02 26.017707120           F:I: 274 0
20 IC 430 RNe 05 38 18.24 -07 02 26.2           ~ 66 0
21 V* V1187 Ori C* 05 39 42.6258029448 -08 09 08.616635532     12 10.18   C 40 0
22 RAFGL 5163 Y*O 05 40 27.45024 -07 27 30.0564           ~ 151 1
23 IRAS 05423+2905 OH* 05 45 29.9352714288 +29 07 05.256216444       12.42   M10.5 33 0
24 IRAS 05437-0001 SFR 05 46 17.8 -00 00 17           ~ 18 0
25 NAME Mon R2 HII 06 07 47.58 -06 22 42.6           ~ 789 2
26 IRC +40156 OH* 06 33 15.7602909600 +40 42 50.988602196           M8 76 0
27 RAFGL 961 Y*O 06 34 37.74144 +04 12 44.1972           O-rich 242 1
28 V* GX Mon OH* 06 52 47.0423680104 +08 25 19.097958468   15.40 15.46 10.56   M9 126 0
29 V* VY CMa s*r 07 22 58.3261352189 -25 46 03.194390594 12.01 10.068 8.691 7.938   M5Iae 1169 0
30 V* AI CMi pA* 07 35 41.1506935176 +00 14 57.993628992   9.83 8.31     G5Iab 64 0
31 OH 231.8+04.2 OH* 07 42 16.947 -14 42 50.20           M10III+A 548 0
32 V* AU Gem Mi* 07 45 27.4430166816 +30 46 41.342895012       11.34   M10 35 0
33 V* SS Pup OH* 07 46 38.2780695096 -26 20 35.814716736   12.99 11.66 10.91 9.09 M10 36 0
34 V* U Pup Mi* 08 00 50.4904071144 -12 50 29.130830520   12.07 10.90     M8e 69 0
35 IRAS 08005-2356 AB* 08 02 40.7049577608 -24 04 42.588796404   12.454 11.139 10.930   F5Iae 99 0
36 RAFGL 1274 OH* 08 38 08.5429878197 -10 24 15.391503505           M7pe 51 0
37 V* IW Hya OH* 09 45 15.2390936088 -22 01 45.329402244     16     M8/9 116 0
38 NML Cyg s*r 20 46 25.5392819088 +40 06 59.464289232           M7/8 527 0
39 2MASS J21430143+5456183 Y*O 21 43 01.4400 +54 56 17.800           ~ 64 2
40 IRAS 21554+6204 OH* 21 56 58.19496 +62 18 46.0152           O-rich 45 0
41 SH 2-140 OpC 22 19 07.8 +63 17 07           ~ 668 2
42 IRAS 22176+6303 Y*O 22 19 18.23 +63 18 47.5           ~ 600 0
43 RAFGL 2885 OH* 22 19 27.47784 +59 51 21.7080           O-rich 140 0
44 V* V708 Cep OH* 22 48 14.0220169728 +69 58 28.527467376           M6 23 0
45 V* MY Cep s*r 22 54 31.6975387464 +60 49 38.973030780   16.149 13.770 12.822   M7.5I 94 0
46 EM* AS 501 AB* 22 57 40.9715428128 +58 49 12.529058124   15.258 12.516 11.201   M2II-III 120 0
47 [D75] 184 S* 23 37 39.7355722368 +58 50 45.888975204           S-M5/7e 26 0
48 V* PZ Cas s*r 23 44 03.2814215136 +61 47 22.190200476 12.80 11.48 8.90 6.08 3.90 M3Ia 210 0
49 V* EY And Mi* 23 45 02.3088013272 +43 55 25.982143104       8.61   M9 63 0

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