2008A&A...489..143L

Query : 2008A&A...489..143L

2008A&A...489..143L - Astronomy and Astrophysics, volume 489143-156 (2008/10-1)

2MASS wide field extinction maps. II. The Ophiuchus and the Lupus cloud complexes.

LOMBARDI M., LADA C.J. and ALVES J.

Abstract (from CDS):

We present an extinction map of a ∼1700 deg sq region that encloses the Ophiuchus, the Lupus, and the Pipe dark complexes using 42 million stars from the Two Micron All Sky Survey (2MASS) point source catalog. The use of a robust and optimal near-infrared method to map dust column density (nicer, described in Lombardi & Alves, 2001A&A...377.1023L) allow us to detect extinction as low as AK=0.05mag with a 2-σ significance, and still to have a resolution of 3arcmin on our map. We also present a novel, statistically sound method to characterize the small-scale inhomogeneities in molecular clouds. Finally, we investigate the cloud structure function, and show that significant deviations from the results predicted by turbulent models are observed.

Abstract Copyright: ∼

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

Simbad objects: 33

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Number of rows : 33
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 Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
2 Lupus 1 Cld 15 43 02.1 -34 09 06           ~ 320 0
3 Lupus 2 MoC 15 57 08 -37 47.1           ~ 119 1
4 NAME Lupus Complex SFR 16 03 -38.1           ~ 851 0
5 Lupus 4 MoC 16 03 12.4 -42 07 43           ~ 163 0
6 Lupus 3 SFR 16 09.6 -39 03           ~ 348 0
7 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
8 Lupus 7 Cld 16 14 10 -44 02.8           ~ 4 0
9 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1497 1
10 LDN 1719 DNe 16 19.9 -20 07           ~ 24 0
11 Lupus 5 MoC 16 21 -37.5           ~ 63 0
12 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
13 Lupus 6 Cld 16 25 -40.3           ~ 51 1
14 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
15 * alf Sco s*r 16 29 24.45970 -26 25 55.2094 4.08 2.75 0.91 -0.64 -1.87 M1.5Iab+B2Vn 786 0
16 NAME Oph Cloud Complex DNe 16 30 -24.3           ~ 67 1
17 LDN 1709 DNe 16 31 34.8 -24 02 55           ~ 84 0
18 LDN 1689 DNe 16 32 22.5 -24 28 29           ~ 153 0
19 LDN 43 DNe 16 34 29.3 -15 47 11           ~ 147 1
20 LDN 1729 DNe 16 43.0 -24 06           ~ 31 0
21 Lupus 9 Cld 16 44 38 -35 23.2           ~ 5 0
22 LDN 1765 DNe 16 45.0 -21 15           ~ 15 0
23 LDN 148 DNe 16 46.4 -14 10           ~ 4 0
24 LDN 204 DNe 16 47 47.3 -12 05 16           ~ 55 0
25 LDN 191 DNe 16 47.8 -12 45           ~ 13 0
26 LDN 234 DNe 16 48.8 -11 05           ~ 12 0
27 LDN 62 DNe 16 49.9 -18 05           ~ 4 0
28 LDN 31 DNe 16 50 27 -19 07.3           ~ 19 0
29 LDN 137 DNe 16 50.9 -15 25           ~ 9 0
30 LDN 146 MoC 16 57 17.5 -16 09 18           ~ 89 1
31 NAME the Pipe Nebula DNe 17 30 -25.0           ~ 442 1
32 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
33 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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