J/AcA/43/209 OB stars extinction based in IR photometry (Wegner, 1993)
Extinction law survey based on near IR photometry of OB stars.
Wegner W.
<Acta Astron. 43, 209-234 (1993)>
=1993AcA....43..209W 1993AcA....43..209W
ADC_Keywords: Stars, early-type ; Infrared sources ; Photometry, infrared ;
Extinction
Keywords: extinction - infrared: stars
Abstract:
The paper presents an extensive survey of interstellar extinction
curves derived from the near IR photometric measurements of early type
stars belonging to our Galaxy. This survey is more extensive and
deeper than any other one, based on spectral data. The IR magnitudes
of about 500 O and B type stars with E(B-V)≥0.05 were selected
from literature. The IR color excesses are determined with the aid of
"artificial standards". The results indicate that the extinction law
changes from place to place. The mean galactic extinction curve in the
near IR is very similar in different directions and changes very
little from the value R=3.10±0.05 obtained in this paper.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 81 506 Ratios of consecutive excesses
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- ID Identification number (HD or BD)
7- 8 A2 --- m_ID Multiplicity index
10- 20 A11 --- SpType MK spectral type
22 A1 --- u_E(B-V) Uncertainty flag on E(B-V)
23- 27 F5.3 mag E(B-V) (B-V) colour excess
29 A1 --- u_kR Uncertainty flag on kR
30- 34 F5.2 --- kR ? E(R-V)/E(B-V) ratio
36 A1 --- u_kI Uncertainty flag on kI
37- 41 F5.2 --- kI ? E(I-V)/E(B-V) ratio
43 A1 --- u_kJ Uncertainty flag on kI
44- 49 F6.2 --- kJ ? E(J-V)/E(B-V) ratio
51 A1 --- u_kH Uncertainty flag on kH
52- 57 F6.2 --- kH ? E(H-V)/E(B-V) ratio
59 A1 --- u_kK Uncertainty flag on kK
60- 65 F6.2 --- kK ? E(K-V)/E(B-V) ratio
67 A1 --- u_kL Uncertainty flag on kL
68- 73 F6.2 --- kL ? E(L-V)/E(B-V) ratio
75 A1 --- u_kM Uncertainty flag on kM
76- 81 F6.2 --- kM ? E(M-V)/E(B-V) ratio
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History:
Prepared via OCR at CDS.
(End) James Marcout, Patricia Vannier [CDS] 27-Feb-2004