2001A&A...370..991K


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.27CET13:11:32

2001A&A...370..991K - Astronomy and Astrophysics, volume 370, 991-995 (2001/5-2)

IRAS 18456-0223 - a flare star in a new star forming region.

KIMESWENGER S. and WEINBERGER R.

Abstract (from CDS):

We report the discovery of a new conspicuous flare star coincident with the position of the IRAS PSC source 18456-0223 that is located in or projected on a dark cloud. In the immediate vicinity of the source, a very faint nebula and a small group of stars are detected in the optical. We carried out rough red band photometry and accurate astrometry of those stellar objects. In addition, near-infrared images were obtained with the DENIS survey instrument in I (0.8), J (1.25) and Ks (2.15µm) that show an increasing number of stars which appear to constitute a small cluster around the position of the IRAS source; the flare star itself (RMAX≃15.55', RMIN>22.5') however, could not be traced. We assume that the flare star is enshrouded in a dust cloud of AV>10m. By using a K vs. J-K diagram we were able to detect a new star forming region around IRAS 18456-0223 by identifying a number of YSO candidates. The distance estimate is 1600±400pc and that of the foreground extinction AV=2±0.5mag.

Abstract Copyright:

Journal keyword(s): surveys - stars: flare - stars: formation - ISM: clouds

Nomenclature: Table 2: [KW2001] NN (Nos 1-28).

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 13

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Number of rows : 13

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 SNR G030.1+00.3 SNR 18 48 -02.3           ~ 2 0
2 F3R 1063 Rad 18 48 01.8 -02 17 50           ~ 2 0
3 [L89b] 30.502-00.290 HII 18 48 02.2 -02 17 41           ~ 4 0
4 [SG96] 30.50-0.29 Rad 18 48 02.7 -02 17 38           ~ 2 0
5 USNO-A2.0 0825-13033689 * 18 48 03.577 -06 07 54.46   15.0       ~ 1 0
6 USNO-A2.0 0825-13034917 * 18 48 05.1109286396 -02 21 20.442300951   18.5       ~ 1 0
7 USNO-A2.0 0825-13044642 * 18 48 16.1000387927 -02 20 31.221048861   16.9       ~ 1 0
8 IRAS 18456-0223 IR 18 48 16.2 -02 20 16           ~ 4 0
9 USNO-A2.0 0825-13045391 * 18 48 16.9244567004 -02 20 02.205054686   16.5       ~ 1 0
10 USNO-A2.0 0825-13050151 * 18 48 22.0516559793 -02 15 59.804658698   17.6       ~ 1 0
11 HD 173955 * 18 48 22.2979401268 -02 18 45.241377575   10.47 9.91     F8/G0(V) 3 0
12 USNO-A2.0 0825-13050693 * 18 48 22.6101749689 -02 22 31.077155747   18.7       ~ 1 0
13 USNO-A2.0 0825-13060719 * 18 48 33.7916411475 -02 17 31.119473361   17.6       ~ 1 0

    Equat.    Gal    SGal    Ecl

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2020.10.27-13:11:32

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