2007MNRAS.380.1497L

Query : 2007MNRAS.380.1497L

2007MNRAS.380.1497L - Mon. Not. R. Astron. Soc., 380, 1497-1510 (2007/October-1)

Embedded stellar populations towards young massive star formation regions - I. G305.2+0.2.

LONGMORE S.N., MAERCKER M., RAMSTEDT S. and BURTON M.G.

Abstract (from CDS):

We present deep, wide field J, H and Ks images taken with Infrared Imager and Spectrometer 2 (IRIS2) on the Anglo-Australian Telescope, towards the massive star formation region G305.2+0.2. Combined with 3.6, 4.5, 5.8 and 8.0 µm data from the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) survey on the Spitzer Space Telescope, we investigate the properties of the embedded stellar populations. After removing contamination from foreground stars, we separate the sources based on their infrared (IR) colour. Strong extended emission in the GLIMPSE images hampers investigation of the most embedded sources towards the known sites of massive star formation. However, we find a sizeable population of IR excess sources in the surrounding region free from these completeness effects. Investigation reveals the recent star formation activity in the region is more widespread than previously known.

Stellar density plots show the embedded cluster in the region, G305.24+0.204, is offset from the dust emission. We discuss the effect of this cluster on the surrounding area and argue it may have played a role in triggering sites of star formation within the region. Finally, we investigate the distribution of IR excess sources towards the cluster, in particular their apparent lack towards the centre compared with its immediate environs.


Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): stars: early-type - stars: evolution - stars: formation - stars: pre-main-sequence - open clusters and associations: general - infrared: stars

VizieR on-line data: <Available at CDS (J/MNRAS/380/1497): table1.dat>

Nomenclature: Fig.1: [LMR2007] MM N (Nos 1-9). Table 1: [LMR2007] DDD.dddd+DD.ddddd N=7282.

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 19

goto Full paper

goto View the references in ADS

Number of rows : 19
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 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
2 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
3 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2421 1
4 NAME Crux-Scutum Spiral Arm reg 12 30 -60.0           ~ 323 0
5 [LMR2007] MM 8 * 13 11 00 -62 35.5           ~ 3 0
6 [WB2006] G305N * 13 11 09 -62 33.0           ~ 2 0
7 [LMR2007] MM 4 * 13 11 13.8 -62 34 39           ~ 2 0
8 GAL 305.20+00.2 bub 13 11 35.1 -62 33 26           ~ 39 0
9 [DBS2003] 131 OpC 13 11 39.400 -62 33 11.55           ~ 16 0
10 Cl Danks 1 OpC 13 12 29.0 -62 41 56           ~ 80 0
11 WR 48a WR* 13 12 39.6052790136 -62 42 55.939362876       16.081   WC6 106 0
12 Cl Danks 2 OpC 13 12 53.3 -62 40 52           ~ 73 0
13 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
14 [LMR2007] MM 7 * ~ ~           ~ 1 0
15 [LMR2007] MM 1 * ~ ~           ~ 1 0
16 [LMR2007] MM 9 * ~ ~           ~ 1 0
17 [LMR2007] MM 6 * ~ ~           ~ 1 0
18 [LMR2007] MM 3 * ~ ~           ~ 1 0
19 [LMR2007] MM 2 * ~ ~           ~ 1 0

To bookmark this query, right click on this link: simbad:objects in 2007MNRAS.380.1497L and select 'bookmark this link' or equivalent in the popup menu