2010A&A...518L..92W

Query : 2010A&A...518L..92W

2010A&A...518L..92W - Astronomy and Astrophysics, volume 518, L92-92 (2010/7-2)

A Herschel study of the properties of starless cores in the Polaris flare dark cloud region using PACS and SPIRE.

WARD-THOMPSON D., KIRK J.M., ANDRE P., SARACENO P., DIDELON P., KOENYVES V., SCHNEIDER N., ABERGEL A., BALUTEAU J.-P., BERNARD J.-P., BONTEMPS S., CAMBRESY L., COX P., DI FRANCESCO J., DI GIORGIO A.M., GRIFFIN M., HARGRAVE P., HUANG M., LI J.Z., MARTIN P., MEN'SHCHIKOV A., MINIER V., MOLINARI S., MOTTE F., OLOFSSON G., PEZZUTO S., RUSSEIL D., SAUVAGE M., SIBTHORPE B., SPINOGLIO L., TESTI L., WHITE G., WILSON C., WOODCRAFT A. and ZAVAGNO A.

Abstract (from CDS):

The Polaris Flare cloud region contains a great deal of extended emission. It is at high declination and high Galactic latitude. It was previously seen strongly in IRAS Cirrus emission at 100 microns. We have detected it with both PACS and SPIRE on Herschel. We see filamentary and low-level structure. We identify the five densest cores within this structure. We present the results of a temperature, mass and density analysis of these cores. We compare their observed masses to their virial masses, and see that in all cases the observed masses lie close to the lower end of the range of estimated virial masses. Therefore, we cannot say whether they are gravitationally bound prestellar cores. Nevertheless, these are the best candidates to be potential prestellar cores in the Polaris cloud region.

Abstract Copyright: ∼

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

Nomenclature: Fig. 1, Table 1: [WKA2010] Core N (Nos 1-5). Text: [WKA2010] loop 1 N=1, [WKA2010] filament N=1.

Simbad objects: 13

Full paper

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Number of rows : 13

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Sp type	#ref 1850 - 2023	#notes
1	[WKA2010] Core 1	cor	01 34 01.9	+87 45 42	~	2	0
2	[WKA2010] filament	IR	01 41.8	+87 43	~	1	0
3	[WKA2010] Core 2	cor	01 44 51.6	+87 43 35	~	2	0
4	[WKA2010] Core 3	cor	01 47 40.8	+87 39 33	~	2	0
5	NAME Polaris Cirrus Cloud	MoC	01 52 29.6	+87 40 31	~	75	0
6	IRAS 01432+8725	FIR	01 57 50.3	+87 39 57	~	1	0
7	[WKA2010] loop 1	IR	01 58.1	+87 40	~	1	0
8	[WKA2010] Core 4	cor	01 59 42.7	+87 39 53	~	2	0
9	[WKA2010] Core 5	cor	02 00 58.7	+87 41 58	~	3	0
10	NAME Polaris Flare	MoC	11 00 14.8	+86 10 52	~	184	1
11	NAME Cepheus Flare	MoC	23 34	+72.0	~	124	0
12	NAME Aql Region	reg	~	~	~	367	0
13	NAME Gould Belt	PoG	~	~	~	832	1

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