2007A&A...475..569K


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.11CET09:48:22

2007A&A...475..569K - Astronomy and Astrophysics, volume 475, 569-574 (2007/11-4)

Observations of V838 Monocerotis in the CO rotational transitions.

KAMINSKI T., MILLER M. and TYLENDA R.

Abstract (from CDS):

We investigate the structure of a field around the position of V838 Mon as seen in the lowest CO rotational transitions. We also measure and analyse emission in the same lines at the position of V838 Mon.Observations have primarily been done in the 12CO J=2-1 and J=3-2 lines using the KOSMA telescope. A field of 3.4 squared degrees has been mapped in the on-the-fly mode in these transitions. Longer integration spectra in the on-off mode have been obtained to study the emission at the position of V838 Mon. Selected positions in the field have also been observed in the 12CO J=1-0 transition using the Delingha telescope.In the observed field we have identified many molecular clouds. They can be divided into two groups from the point of view of their observed radial velocities. One, having VLSR in the range 18-32km/s, can be identified with the Perseus Galactic arm. The other one, having VLSR between 44-57km/s, probably belongs to the Norma-Cygnus arm. The radial velocity of V838 Mon is within the second range but the object does not seem to be related to any of the observed clouds. We did not find any molecular buble of a 1° dimension around the position of V838 Mon claimed in van Loon et al. (2004A&A...427..193V). An emission has been detected at the position of the object in the 12CO J=2-1 and J=3-2 transitions. The emission is very narrow (FWHM≃1.2km/s) and at VLSR=53.3km/s. Our analysis of the data suggests that the emission is probably extended.

Abstract Copyright:

Journal keyword(s): stars: individual: V838 Monocerotis - radio lines: ISM - ISM: clouds - ISM: molecules

Nomenclature: Table A1: [KMT2007] PNN (Nos P1-P17), [KMT2007] NCNN (Nos NC1-NC12).

Simbad objects: 32

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Number of rows : 32

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME Per Arm PoG 03 30 +45.0           ~ 1202 0
2 [KMT2007] P6 Cld 06 59 21.30 -03 50 46.3           ~ 1 0
3 [KMT2007] NC9 Cld 06 59 21.60 -04 01 03.3           ~ 1 0
4 [KMT2007] NC4 Cld 06 59 23.20 -03 31 12.2           ~ 1 0
5 [KMT2007] P11 Cld 06 59 29.10 -04 17 32.1           ~ 1 0
6 [KMT2007] P8 Cld 06 59 38.50 -04 08 11.7           ~ 1 0
7 [KMT2007] P12 Cld 06 59 43.30 -04 36 34.6           ~ 1 0
8 [KMT2007] P5 Cld 06 59 48.00 -03 35 51.8           ~ 1 0
9 [KMT2007] NC11 Cld 06 59 57.30 -04 06 07.0           ~ 1 0
10 [KMT2007] P4 Cld 07 00 12.50 -03 28 19.1           ~ 1 0
11 [KMT2007] P16 Cld 07 00 23.70 -04 44 07.2           ~ 1 0
12 [KMT2007] NC5 Cld 07 00 24.00 -03 32 25.6           ~ 1 0
13 [KMT2007] NC10 Cld 07 00 38.60 -03 51 37.7           ~ 1 0
14 [KMT2007] P14 Cld 07 00 38.80 -04 37 50.0           ~ 1 0
15 [KMT2007] P10 Cld 07 00 43.30 -04 07 39.4           ~ 1 0
16 [KMT2007] NC7 Cld 07 00 51.30 -03 36 47.4           ~ 1 0
17 [KMT2007] P7 Cld 07 01 05.70 -03 42 30.5           ~ 1 0
18 [KMT2007] P3 Cld 07 01 08.70 -03 18 04.8           ~ 1 0
19 [KMT2007] P9 Cld 07 01 14.30 -04 03 20.7           ~ 1 0
20 [KMT2007] NC6 Cld 07 01 18.60 -03 25 47.6           ~ 1 0
21 [KMT2007] P15 Cld 07 01 19.30 -04 35 31.4           ~ 1 0
22 [KMT2007] P13 Cld 07 01 27.90 -04 23 49.4           ~ 1 0
23 [KMT2007] NC8 Cld 07 01 29.10 -03 37 29.3           ~ 1 0
24 [KMT2007] P17 Cld 07 01 39.60 -04 37 20.1           ~ 1 0
25 [KMT2007] P2 Cld 07 01 55.50 -03 11 47.6           ~ 1 0
26 [KMT2007] P1 Cld 07 01 55.50 -03 11 47.6           ~ 1 0
27 [KMT2007] NC3 Cld 07 01 56.40 -03 02 34.5           ~ 1 0
28 [KMT2007] NC12 Cld 07 02 43.10 -04 23 55.3           ~ 1 0
29 [KMT2007] NC1 Cld 07 02 51.70 -02 54 43.2           ~ 1 0
30 [KMT2007] NC2 Cld 07 02 51.70 -02 54 43.2           ~ 1 0
31 V* V838 Mon CV* 07 04 04.8222936785 -03 50 50.637499515   15.5   15.18 14.51 M10+B3V 364 0
32 NAME Norma-Cygnus Arm reg ~ ~           ~ 71 0

    Equat.    Gal    SGal    Ecl

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2019.12.11-09:48:22

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