2016A&A...587A.106Z


Query : 2016A&A...587A.106Z

2016A&A...587A.106Z - Astronomy and Astrophysics, volume 587A, 106-106 (2016/3-1)

Herschel-Planck dust optical depth and column density maps. II. Perseus.

ZARI E., LOMBARDI M., ALVES J., LADA C.J. and BOUY H.

Abstract (from CDS):

We present optical depth and temperature maps of the Perseus molecular cloud, obtained combining dust emission data from the Herschel and Planck satellites and 2MASS/NIR dust extinction maps. The maps have a resolution of 36 arcsec in the Herschel regions, and of 5 arcmin elsewhere. The dynamic range of the optical depth map ranges from 1x10–2mag up to 20mag in the equivalent K-band extinction. We also evaluate the ratio between the 2.2µm extinction coefficient and the 850µm opacity. The value we obtain is close to the one found in the Orion B molecular cloud. We show that the cumulative and the differential area function of the data (which is proportional to the probability distribution function of the cloud column density) follow power laws with an index of respectively ≃-2, and ≃-3. We use WISE data to improve current YSO catalogs based mostly on Spitzer data and we build an up-to-date selection of Class I/0 objects. Using this selection, we evaluate the local Schmidt law, ΣYSO∝Σgasβ, showing that β=2.4±0.6. Finally, we show that the area-extinction relation is important for determining the star-formation rate in the cloud, which is in agreement with other recent works.

Abstract Copyright:

Journal keyword(s): ISM: clouds - dust, extinction - ISM: individual objects: Perseus molecular could - methods: data analysis - ISM: structure

VizieR on-line data: <Available at CDS (J/A+A/587/A106): tablec1.dat list.dat fits/*>

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

Simbad objects: 22

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Number of rows : 22
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 LDN 1448 DNe 03 22.5 +30 35           ~ 496 0
2 LDN 1451 DNe 03 26.1 +30 10           ~ 51 0
3 LDN 1455 DNe 03 28 00.6480 +30 07 58.800           ~ 177 1
4 NGC 1333 OpC 03 29 11 +31 18.6           ~ 1325 1
5 Barnard 1 MoC 03 33 16.3 +31 07 51           ~ 295 0
6 [HRF2005] 3 PoC 03 33 21.3 +31 07 27           ~ 69 0
7 [KJD2006] SMM J033335+31075 PoC 03 33 21.3 +31 07 28           ~ 93 0
8 NAME Perseus Cloud SFR 03 35.0 +31 13           ~ 1210 0
9 NAME Per B1-E PoC 03 36 45.0 +31 12 40           ~ 28 0
10 NAME Per Region reg 03 37 00.0 +31 15 00           ~ 249 0
11 HD 278942 ** 03 39 55.6857090240 +31 55 33.189519540   10.25 9.15     O9.5-B0 48 1
12 GAL 159.6-18.5 Rad 03 39 55.7 +31 55 33           ~ 34 1
13 Ass Per OB 2 As* 03 42.2 +33 26           ~ 320 0
14 IC 348 OpC 03 44 32 +32 09.5           ~ 1301 1
15 Cl Melotte 22 OpC 03 46 24 +24 06.8           ~ 3185 0
16 LDN 1471 DNe 03 48.0 +32 54           ~ 305 0
17 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3926 0
18 NAME Ori A MoC 05 38 -07.1           ~ 2841 0
19 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1266 0
20 NAME ORI MOL CLOUD MoC 05 56 -01.8           ~ 955 1
21 LHO 102 WR* 17 46 14.30 -28 49 31.5           WC9?d 20 0
22 NAME Gould Belt PoG ~ ~           ~ 799 1

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2022.05.28-09:39:36

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