Access to Astronomical Catalogues

← Click to display the menu
J/ApJ/623/897 Reddening and extinction at high galactic latitude (Larson+, 2005)

Reddening and the extinction law at high galactic latitude. Larson K.A., Whittet D.C.B. <Astrophys. J., 623, 897-910 (2005)> =2005ApJ...623..897L
ADC_Keywords: Extinction ; Reddening ; Photometry, infrared ; Interstellar medium Keywords: dust, extinction - infrared: ISM - ISM: clouds Abstract: We present near-infrared (JHKL) photometry of 103 southern stars located behind translucent interstellar clouds at high Galactic latitude. Our data are combined with visual photometry and spectral type information from the literature in a detailed analysis of the wavelength dependence of interstellar extinction by dust in these high-latitude clouds. We investigate the shape of the near-infrared extinction curve and evaluate the total line-of-sight extinction (AV) and ratio of total-to-selective extinction (RV) in each line of sight. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 118 105 Photometry and color excess refs.dat 108 7 References table2.dat 43 105 Extinction curve parameters
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name Source name 12 A1 --- rPh [ab] Source of photometry (1) 14- 18 F5.2 mag Jmag The J band magnitude 20- 23 F4.2 mag e_Jmag The 1σ error in Jmag 25- 29 F5.2 mag Hmag The H band magnitude 31- 34 F4.2 mag e_Hmag The 1σ error in Hmag 36- 40 F5.2 mag Kmag The K band magnitude 42- 45 F4.2 mag e_Kmag The 1σ error in Kmag 47- 50 F4.2 mag Lmag ? The L band magnitude 52- 55 F4.2 mag e_Lmag ? The 1σ error in Lmag 57- 61 F5.2 mag Vmag The V band magnitude 63- 67 F5.2 mag B-V ? The (B-V) color (2) 69 A1 --- r_Vmag Optical photometry reference 71- 79 A9 --- SpType MK spectral type 81- 83 A3 --- r_SpType Spectral type references 85- 89 F5.2 mag E(B-V) The (B-V) color excess 91- 94 F4.2 mag e_E(B-V) The 1σ error in E(B-V) 96-100 F5.2 mag E(V-J) The (V-J) color excess 102-106 F5.2 mag E(V-H) The (V-H) color excess 108-112 F5.2 mag E(V-K) The (V-K) color excess 114-118 F5.2 mag E(V-L) ? The (V-L) color excess
Note (1): Flag on Name, defined as follows: a = NIR photometry from Whittet & van Breda (1980MNRAS.192..467W); b = NIR photometry from Larson, Whittet, & Hough (1996ApJ...472..755L). Note (2): Where there are null values in B-V, the values of E(B-V) are not calculated, but rather from Penprase (1992ApJS...83..273P).
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1 A1 --- Ref Reference code 3- 21 A19 --- Bibcode Bibcode 23- 45 A23 --- Aut Author's name 47-108 A62 --- Com Comment
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name Source name 12- 15 F4.2 --- FFit ? Total line-of-sight extinction from offset power law fit 17 A1 --- f_FFit Flag on FFit (1) 19- 22 F4.2 mag HiLat ? Total line-of-sight extinction from the average high-latitude extinction curve fit 24 A1 --- f_HiLat Flag on HiiLat (1) 26- 29 F4.2 mag 1.1E(V-K) ? Total line-of-sight extinction from 1.1E(V-K) calculation 31 A1 --- f_1.1E(V-K) Flag on 1.1E(V-K) (1) 33- 36 F4.2 --- EB/EV ? The blue-visual ratio of extinction-to reddening 38 A1 --- f_EB/EV Flag on E(B-V) (1) 40- 43 F4.2 --- e_EB/EV ? The 1σ error in EB/EV
Note (1): Flag on FFit, defined as follows: a = Data not well fit by offset power law. b = Negative extinction consistent with zero. c = Negative extinction indicates possible spectral type error. d = RV not accurate for E(B-V)<0.10mag.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 16-Sep-2005
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact