2009ApJ...705.1456S


Query : 2009ApJ...705.1456S

2009ApJ...705.1456S - Astrophys. J., 705, 1456-1461 (2009/November-2)

Two massive, low-luminosity cores toward infrared dark clouds.

SWIFT J.J.

Abstract (from CDS):

This article presents high-resolution interferometric mosaics in the 850 µm wave band of two massive, quiescent infrared dark clouds. The two clouds were chosen based on their likelihood to represent environments preceding the formation of massive stars. The brightest compact sources detected in each cloud have masses ~110 M and ~60 Mwith radii <0.1 pc, implying mean densities of <n> ~ 106/cm3 and <N> ~ 1 g/cm2. Supplementary data show these cores to be cold and inactive. Low upper limits to their bolometric luminosities and temperatures place them at a very early stage of evolution, while current models of massive star formation suggest they have the potential to form massive stars.

Abstract Copyright:

Journal keyword(s): ISM: clouds - ISM: individual: MSX G030.88+00.13 - ISM: structure - stars: formation

Nomenclature: Fig. 2, Table 2: [S2009c] Core N (Nos 1-2).

Simbad objects: 15

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Number of rows : 15
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 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2098 1
2 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1231 0
3 3C 279 Bla 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2811 2
4 QSO B1741-038 QSO 17 43 58.85613396 -03 50 04.6166450     18.5 17.98   ~ 495 1
5 4C 09.57 BLL 17 51 32.81857318 +09 39 00.7284829   17.46 16.78 15.57   ~ 852 1
6 OH 26.5 +0.6 OH* 18 37 32.50920 -05 23 59.1936           O-rich 286 0
7 MSXDC G028.53-0.25 DNe 18 44 17.1 -03 59 37           ~ 18 0
8 [S2009c] Core 2 cor 18 44 18.00 -03 59 23.0           ~ 2 0
9 [S2009c] Core 1 cor 18 47 13.70 -01 45 03.7           ~ 2 0
10 SDC G30.895+0.134 DNe 18 47 14.61 -01 45 03.3           ~ 8 0
11 HD 179821 pA* 19 13 58.6083165753 +00 07 31.934676028 10.81 9.694 8.19     G4_0-Ia 227 0
12 V* W Aql S* 19 15 23.3581458294 -07 02 50.308513461   12.72 10.14     S6/6e 212 0
13 NAME Cyg X Cld 20 28 41 +41 10.2           ~ 677 1
14 NML Cyg s*r 20 46 25.5382179476 +40 06 59.396202678   18.64 16.60     M7/8 488 0
15 HD 235858 pA* 22 29 10.3755939027 +54 51 06.341145584   11.40 9.52 8.47 7.34 G5Ia 241 0

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2021.09.23-03:55:20

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