2018ApJ...852..102S


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.15CEST07:36:18

2018ApJ...852..102S - Astrophys. J., 852, 102-102 (2018/January-2)

Intensity-corrected Herschel observations of nearby isolated low-mass clouds.

SADAVOY S.I., KETO E., BOURKE T.L., DUNHAM M.M., MYERS P.C., STEPHENS I.W., DI FRANCESCO J., WEBB K., STUTZ A.M., LAUNHARDT R. and TOBIN J.J.

Abstract (from CDS):

We present intensity-corrected Herschel maps at 100, 160, 250, 350, and 500 µm for 56 isolated low-mass clouds. We determine the zero-point corrections for Herschel Photodetector Array Camera and Spectrometer (PACS) and Spectral Photometric Imaging Receiver (SPIRE) maps from the Herschel Science Archive (HSA) using Planck data. Since these HSA maps are small, we cannot correct them using typical methods. Here we introduce a technique to measure the zero-point corrections for small Herschel maps. We use radial profiles to identify offsets between the observed HSA intensities and the expected intensities from Planck. Most clouds have reliable offset measurements with this technique. In addition, we find that roughly half of the clouds have underestimated HSA-SPIRE intensities in their outer envelopes relative to Planck, even though the HSA-SPIRE maps were previously zero-point corrected. Using our technique, we produce corrected Herschel intensity maps for all 56 clouds and determine their line-of-sight average dust temperatures and optical depths from modified blackbody fits. The clouds have typical temperatures of ∼14-20 K and optical depths of ∼10–5-10–3. Across the whole sample, we find an anticorrelation between temperature and optical depth. We also find lower temperatures than what was measured in previous Herschel studies, which subtracted out a background level from their intensity maps to circumvent the zero-point correction. Accurate Herschel observations of clouds are key to obtaining accurate density and temperature profiles. To make such future analyses possible, intensity-corrected maps for all 56 clouds are publicly available in the electronic version.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

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

VizieR on-line data: <Available at CDS (J/ApJ/852/102): table1.dat refs.dat fits/*>

Simbad objects: 81

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Number of rows : 81

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 [DB2002b] G121.03-9.97 MoC 00 39 03 +52 51.5           ~ 19 0
2 LBN 122.71-12.11 MoC 00 49 29 +50 44.6           ~ 27 0
3 Cl Melotte 20 OpC 03 26 42 +48 48.0           ~ 771 0
4 LDN 1389 MoC 04 04 38 +56 56.2           ~ 82 0
5 LDN 1521F DNe 04 28 39.3 +26 51 43           ~ 190 1
6 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1251 0
7 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3679 0
8 LDN 1439 DNe 05 00 09 +52 04.9           ~ 81 0
9 LDN 1512 MoC 05 04 09.7 +32 43 09           ~ 160 0
10 LDN 1544 DNe 05 04 16.6 +25 10 48           ~ 725 0
11 LDN 1552 DNe 05 17.7 +26 03           ~ 22 0
12 [DB2002b] G205.81-21.50 MoC 05 22 11 -03 41.6           ~ 11 0
13 * lam Ori ** 05 35 08.27761 +09 56 02.9611 2.45 3.48 3.66 3.72 3.89 O8IIIf+B0.5V 275 0
14 JCMTSF J054429.8+090856 DNe 05 44 29.8 +09 08 54           ~ 18 0
15 CG 13 CGb 07 14 11.3 -48 28 32           ~ 19 0
16 CG 1 CGb 07 19 21.5 -44 35 03           ~ 39 1
17 TGU H1654 MoC 08 05 26 -39 08.9           ~ 15 0
18 CG 30 CGb 08 09 32.8 -36 05 00           ~ 123 0
19 [DB2002b] G257.30-2.47 cor 08 17 07.1 -39 54 01           ~ 3 0
20 [DB2002b] G265.65-7.71 MoC 08 18 40 -49 43.9           ~ 10 0
21 [DB2002b] G267.94-7.80 MoC 08 26 12 -51 39.3           ~ 8 0
22 BHR 34 MoC 08 26 34 -50 39.9           ~ 18 0
23 IRAS 08261-5100 MoC 08 27 38.9 -51 10 38           ~ 29 0
24 BHR 40 MoC 08 32 01 -50 32.8           ~ 9 0
25 NAME Vela XYZ Rad 08 34.0 -45 50           ~ 1138 2
26 BHR 38 MoC 08 34 09 -50 18.4           ~ 6 0
27 [DB2002b] G276.21-10.57 MoC 08 44 14 -59 54.0           ~ 10 0
28 IRAS F08432-5945 Ae? 08 44 23.6523734417 -59 56 57.873679934   10.96 10.91     A5V 8 0
29 [LM99] 100 cor 09 28 47.5 -51 36 24           ~ 2 0
30 [DB2002b] G273.23+2.37 MoC 09 36 04 -48 53.6           ~ 7 0
31 [DB2002b] G273.78+3.15 MoC 09 41 41 -48 40.7           ~ 7 0
32 BHR 55 MoC 09 46 51 -51 06.4           ~ 16 0
33 TGU H1822 P1 MoC 11 49 59 -58 33.1           ~ 9 0
34 BHR 71 MoC 12 01 36.810 -65 08 49.22           ~ 121 0
35 NAME Lower Centaurus Crux As* 12 19 -57.1           ~ 376 1
36 BHR 74 MoC 12 22 09 -66 27.1           ~ 7 0
37 NAME Musca Cld 12 23 -71.3           ~ 168 0
38 NAME Coalsack Nebula DNe 12 31 19 -63 44.6           ~ 246 0
39 [DB2002b] G301.65-6.67 MoC 12 36 56 -69 30.7           ~ 10 0
40 [DB2002b] G301.70-2.59 MoC 12 39 40 -65 26.5           ~ 9 0
41 [LM99] 130 cor 14 26 04.1 -55 20 34           ~ 2 0
42 NAME Circinus Region reg 14 49 -65.3           ~ 30 0
43 [DB2002b] G316.90-2.08 MoC 14 53 21 -61 36.1           ~ 6 0
44 NAME Upper Centaurus Lupus As* 15 24 -41.9           ~ 381 1
45 [DB2002b] G320.47-3.50 MoC 15 25 03 -61 01.7           ~ 6 0
46 [DB2002b] G320.49-3.62 MoC 15 25 45 -61 07.1           ~ 8 0
47 [DB2002b] G319.92-4.77 MoC 15 27 12 -62 23.3           ~ 7 0
48 [LM99] DC 3391+117-2 cor 15 59 03.6 -37 36 57           ~ 2 0
49 NAME Lup Cloud SFR 16 03 -38.1           ~ 558 0
50 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3156 1
51 [LM99] DC 3460+78 cor 16 36 53.0 -35 36 29           ~ 4 0
52 V* AK Sco Ae* 16 54 44.8497760618 -36 53 18.560813962 9.80 9.63 9.00     F5V 244 1
53 LDN 146 MoC 16 57 17.5 -16 09 18           ~ 67 1
54 BHR 147 MoC 16 58 26 -36 42.3           ~ 6 0
55 LDN 57 DNe 17 22 38.2 -23 49 34           ~ 286 1
56 NAME the Pipe Nebula DNe 17 30 -25.0           ~ 351 1
57 LDN 392 DNe 17 53 05.2300 -08 33 41.170           ~ 14 0
58 LDN 422 DNe 18 12 06 -08 05.9           ~ 7 0
59 LDN 507 MoC 18 16 15 -02 32.8           ~ 28 0
60 LDN 429 DNe 18 16 44 -08 18.9           ~ 34 0
61 LDN 483 DNe 18 17 35 -04 39.8           ~ 223 0
62 NAME Aql Rift DNe 18 32 -01.0           ~ 263 1
63 LDN 544 DNe 19 01.6 -05 26           ~ 12 0
64 LDN 549 DNe 19 02 06.8 -05 18 57           ~ 29 0
65 [CB88] 176 MoC 19 02 14 -04 22.7           ~ 3 0
66 LDN 723 DNe 19 18 12 +19 13.6           ~ 153 0
67 [CB88] 188 cor 19 20 15.6 +11 36 15           ~ 34 0
68 LDN 673 DNe 19 20 54.4 +11 13 12           ~ 69 0
69 LDN 663 DNe 19 36 55 +07 34.4           ~ 570 0
70 NAME Northern Coalsack DNe 20 21 +37.0           ~ 108 0
71 LDN 1177 DNe 21 17 38.62 +68 17 34.0           ~ 83 1
72 LDN 1014 cor 21 24 05.9 +49 59 07           ~ 92 0
73 HD 209811 * 22 04 20.0530129826 +58 46 55.249716557   7.66 7.61     A0 6 0
74 LDN 1165 DNe 22 06 50.7 +59 02 47           ~ 41 0
75 LDN 1219 DNe 22 11.6 +71 00           ~ 13 0
76 LDN 1221 DNe 22 28 02.9 +69 01 13           ~ 46 0
77 NGC 7538 OpC 23 13 37 +61 30.0           ~ 834 0
78 NAME NGC 7538 IRS 1-3 reg 23 13 45 +61 28.3           ~ 26 1
79 LDN 1262 MoC 23 25 47 +74 17.6           ~ 131 0
80 Ass Ori OB 1a As* ~ ~           ~ 204 0
81 NAME Aql Region reg ~ ~           ~ 328 0

    Equat.    Gal    SGal    Ecl

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2021.04.15-07:36:18

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