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J/PASP/105/1127 Distribution of Dust in Solar Neighborhood (Gaustad+ 1993)
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The Distribution of Interstellar Dust in the Solar Neighborhood
Gaustad J.E., Van Buren D.
<Publ. Astron. Soc. Pac. 105, 1127 (1993)>
=1993PASP..105.1127G
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ADC_Keywords: Infrared sources; Colors; Interstellar medium
Abstract:
The authors have surveyed the IRAS data base at the positions of
the 1808 O6--B9.5 stars in The Bright Star Catalog for extended
objects with excess emission ("hotspots") at 60 microns,
indicating the presence of interstellar dust at the location of
the star. The spatial distribution of the dust clouds and the
filling factor for dust in the interstellar medium are discussed
in Gaustad and van Buren (1993). The data included here give the
measured infrared fluxes and radii, and the inferred absorption
optical depths, densities, and color temperatures for the 302
objects detected. Also included are a list of the BSC objects for
which no data could be obtained, and a list of those hotspots
which also show detectable reflection nebulosity.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2 119 302 *The catalog
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Note on table2:
FIR/Bol:equivalent, when multiplied by a factor of about 2, to the
absorption optical depth
Den: equivalent gas density corresponding to the observed dust density (in
number per cubic centimeter)
Byte-by-byte Description of file: table2
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Bytes Format Units Label Explanations
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1- 4 I4 --- HR HR number
6- 12 A7 --- name Flamsteed name
14- 25 A12 --- type Spectral type
27- 30 F4.2 mag V V magnitude
32- 37 F6.2 deg l Galactic longitude
39- 44 F6.2 deg b Galactic latitude
46- 49 I4 pc dist Distance
51- 58 F8.2 Jy F12 12 micron flux
60- 67 F8.2 Jy F25 25 micron flux
69- 76 F8.2 Jy F60 60 micron flux
77- 85 F9.2 Jy F100 100 micron flux
87- 95 F9.6 --- FIR/Bol *Ratio of FIR to bolometric flux
97-100 F4.1 arcmin Aradius Angular radius
102-105 F4.1 pc lRadius Linear Radius
107-111 F5.2 cm**-3 Den *Gas density
113-115 I3 K T25/T60 [10/200]? Temperature from 25/60 fluxes
117-119 I3 K T60/T100 [10/200]? Temperature from 60/100 fluxes
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Table 1: Stars Not Included in Survey
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HR (*) HR (*) HR (*)
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891 b 2871 b 5605 b
928 b 2948 b 5833 b
1610 b 2980 b 5985 b
1764 b 3143 b 6026 b
1851 b 3241 b 6113 b
1880 b 3447 x 6185 b
1886 b 3466 b 7169 b
1893 b 3498 x 7594 b
1894 b 3878 x 8143 x
1896 b 3946 x 8209 x
1897 b 4082 x 8215 x
1932 b 4116 x 8356 x
1949 b 4119 x 8438 x
2170 x 4135 b 8513 x
2279 x 4729 b 8520 x
2357 b 4731 b 8597 x
2358 b 4899 b 8704 x
2783 b 5035 b
2790 b 5211 b
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(*) x -- No data in IRAS data base
(*) b -- Visual companion unresolved by IRAS
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Table 3: Hotspots With Reflection Nebulosity
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HR (*) HR (*) HR (*)
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41 PB 1928 PB 6028 PB
482 PB 1934 PB 6084 PB
548 PB 1945 PB 6294 PB
561 PB 1962 PB 6340 PB
950 PB 2111 PB 6532 PB
1035 PB 2276 PB 6762 PB
1092 EJ 2451 EJ 6788 EJ
1142 PB 2538 PB 7035 PB
1144 PB 2627 PB 7171 PB
1149 PB 2678 PB 7185 PB
1151 PB 2769 EJ 7200 PB
1165 PB 3088 EJ 7287 PB
1307 PB 3147 EJ 7593 PB
1399 PB 3223 EJ 7678 PB
1555 PB 3525 EJ 7844 PB
1659 PB 3536 EJ 7894 PB
1660 PB 4583 EJ 8007 PB
1712 PB 4743 EJ 8020 PB
1719 PB 5027 EJ 8047 PB
1735 PB 5336 EJ 8153 PB
1750 PB 5375 EJ 8171 PB
1808 PB 5685 PB 8176 EJ
1810 PB 5904 PB 8490 PB
1847 PB 5944 PB 8854 PB
1861 PB 5988 PB 8887 PB
1868 PB 5993 PB
1875 PB 6027 PB
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(*) PB -- Palomar Sky Survey Blue Plate
(*) EJ -- ESO Sky Survey J Plate
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(End) N.G. Roman [NASA/NSSDC/ADC] and J.E. Gaustad 05-Apr-1994