2010A&A...518L..93J


Query : 2010A&A...518L..93J

2010A&A...518L..93J - Astronomy and Astrophysics, volume 518, L93-93 (2010/7-2)

Galactic cold cores: Herschel study of first planck detections.

JUVELA M., RISTORCELLI I., MONTIER L.A., MARSHALL D.J., PELKONEN V.-M., MALINEN J., YSARD N., TOTH L.V., HARJU J., BERNARD J.-P., SCHNEIDER N., VEREBELYI E., ANDERSON L., ANDRE P., GIARD M., KRAUSE O., LEHTINEN K., MACIAS-PEREZ J., MARTIN P., McGEHEE P.M., MENY C., MOTTE F., PAGANI L., PALADINI R., REACH W., VALENZIANO L., WARD-THOMPSON D. and ZAVAGNO A.

Abstract (from CDS):

We present the first results from the project Galactic cold cores, where the cold interstellar clouds detected by the Planck satellite are studied with Herschel photometric observations. The final Planck catalogue is expected to contain several thousand sources. The Herschel observations during the science demonstration phase provided the first glimpse into the nature of these sources. The main goal of the project is to derive the physical properties of the cold core population revealed by Planck. We examine three fields and confirm the Planck detections with Herschel data, which we also use to establish the evolutionary stage of the identified cores. We study the morphology and spectral energy distribution of the sources using the combined wavelength coverage of Planck and Herschel. The dust colour temperatures and emissivity indices are determined. The masses of the cores are determined with distance estimates which are taken from the literature and are confirmed by kinematic and extinction information. The observations reveal extended regions of cold dust with dust colour temperatures down to Tdust∼11K. The fields represent different evolutionary stages ranging from a quiescent, cold filament in Musca to regions of active star formation in Cepheus. The Herschel observations confirm that the all-sky survey of Planck is capable of making a large number of new cold core detections. Our results suggest that many of the sources may already have left the pre-stellar phase or are at least closely associated with active star formation. High-resolution Herschel observations are needed to establish the true nature of the Planck detections.

Abstract Copyright:

Journal keyword(s): ISM: clouds - infrared: ISM - submillimeter: ISM - dust, extinction - stars: formation - stars: protostars

Nomenclature: Fig. 1, Table 2: [JRM2010] PCC288-A (Nos A-E), [JRM2010] PCC550-PN (Nos P1-P2), [JRM2010] PCC249-PN (Nos P1-P2).

Simbad objects: 20

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Number of rows : 20
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 NAME Musca Cld 12 23 -71.3           ~ 196 0
2 [JRM2010] PCC550-P2 cor 12 24 30.0 -71 50 19           ~ 6 0
3 [VMF94] 32 cor 12 25 35.6 -71 42 35           ~ 7 0
4 NAME Cepheus Region reg 21 20 00.0 +72 30 00           ~ 108 0
5 SH 2-140 OpC 22 19 07.8 +63 17 07           ~ 651 2
6 IRAS 22176+6303 Y*O 22 19 17.978 +63 18 52.92           ~ 592 0
7 NAME SH 2-140 IRS 1 Y*O 22 19 18.277 +63 18 45.82           ~ 195 0
8 LDN 1204F cor 22 19 19.1 +63 18 51           ~ 5 0
9 LDN 1204G cor 22 19 19.1 +63 18 51           ~ 10 0
10 LDN 1204A DNe 22 21 22.5 +63 51 13           ~ 104 0
11 LDN 1204 DNe 22 26.7 +63 15           ~ 87 1
12 [JRM2010] PCC288-C cor 22 53 26.9 +62 32 01           ~ 1 0
13 [JRM2010] PCC288-P cor 22 53 31.3 +62 31 44           ~ 2 0
14 V* V733 Cep Or* 22 53 33.2578965000 +62 32 23.629387452     18.57   14.63 ~ 40 0
15 [JRM2010] PCC288-D cor 22 53 38.2 +62 28 30           ~ 1 0
16 [JRM2010] PCC288-A cor 22 53 41.0 +62 31 58           ~ 1 0
17 [JRM2010] PCC288-E cor 22 54 06.2 +62 33 37           ~ 1 0
18 NAME Cep F Cld 22 54 25.4 +62 09 42           ~ 26 0
19 LBN 110.11+02.44 HII 22 57 06 +62 38.2           ~ 103 0
20 NAME III CEP ASSOC As* 23 04.2 +63 24           ~ 315 0

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2023.01.31-02:20:31

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