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J/ApJ/497/330       Candidate main-sequence stars (Mannings+, 1998)

Candidate main-sequence stars with debris disks: a new sample of Vega-like sources. Mannings V., Barlow M.J. <Astrophys. J. 497, 330 (1998)> =1998ApJ...497..330M (SIMBAD/NED BibCode)
ADC_Keywords: Stars, dwarfs ; Infrared sources ; Spectra, infrared Keywords: circumstellar matter - infrared: stars Abstract: Vega-like sources are main-sequence stars that exhibit IR fluxes in excess of expectations for stellar photospheres, most likely due to reradiation of stellar emission intercepted by orbiting dust grains. We have identified a large sample of main-sequence stars with possible excess IR radiation by cross-correlating the Michigan Catalog of Two-dimensional Spectral Types for the HD Stars with the IRAS Faint Source Survey Catalog. Some 60 of these Vega-like sources were not found during previous surveys of the IRAS database, the majority of which employed the lower sensitivity Point Source Catalog. Here, we provide details of our search strategy, together with a preliminary examination of the full sample of Vega-like sources. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 122 73 Newly identified candidate main-sequence stars with debris disks table3.dat 122 35 Michigan Spectral Catalogue Vega-like stars identified with in our search and in previous studies table4.dat 122 12 Vega-like candidates with uncertain luminosity classification table5.dat 122 21 Classical Be stars extracted during our search for Vega-like sources
See also: II/156 : IRAS Faint Source Catalog, |b| > 10, Version 2.0 (Moshir+ 1989) III/31 : Michigan catalogue for the HD stars, vol. 1 (Houk+, 1975) III/51 : Michigan Catalogue of HD stars, Vol.2 (Houk, 1978) III/80 : Michigan Catalogue of HD stars, Vol.3 (Houk, 1982) III/133 : Michigan Catalogue of HD stars, Vol.4 (Houk+, 1988) Byte-by-byte Description of file: table*.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Number Object number 3- 5 A3 --- n_Number [abcdefghij ] Note on Number (1) 7- 12 I6 --- HD HD (Cat. III/135) number 14- 19 I6 --- SAO ? SAO (Cat. I/131) number 21- 24 I4 --- HR ? HR (Cat. V/50) number 26- 34 A9 --- Name Object name 36- 48 A13 --- SpType Spectral type 50- 53 I4 --- Fqual Quality flag of the IRAS bands 55- 60 F6.3 Jy F12um FSC (Cat. II/156) flux density at 12µm 62- 66 F5.3 Jy e_F12um rms uncertainty on F12um 68- 73 F6.3 Jy F25um FSC (Cat. II/156) flux density at 25µmm 75- 79 F5.3 Jy e_F25um rms uncertainty on F25um 81- 86 F6.3 Jy F60um FSC (Cat. II/156) flux density at 60µmm 88- 92 F5.3 Jy e_F60um rms uncertainty on F60um 94- 99 F6.3 Jy F100um FSC (Cat. II/156) flux density at 100µmm 101-106 F6.3 Jy e_F100um rms uncertainty on F100um 108-114 F7.2 --- D(12/25)/dobs Discrepancy for 12µm/25µm ratio (2) 116-122 F7.2 --- D(25/60)/dobs Discrepancy for 25µm/60µm ratio (2)
Note (1): a: Flagged by SIMBAD as a double or multiple star b: Flagged by SIMBAD as a variable star c: Has a K4 companion star (Corbally, 1984ApJS...55..657C) e: Member of stellar cluster f: λ Boo star (e.g., King, 1994MNRAS.269..209K) g: Classed as Herbig Ae star by Finkenzeller & Mundt (1984A&AS...55..109F) h: Located in R CrA star-forming region i: Member of Sco-Cen OB association (e.g., de Geus, de Zeeuw, & Lub, 1989A&A...216...44D) j: Not identified in previous surveys of the IRAS database Note (2): Measure of the significance of the discrepancies between the observed flux density ratios and the expected photospheric values, as defined in eqs. (5) and (6). A null entry signifies inadequate data quality
History: From ApJ electronic version
(End) James Marcout, Patricia Bauer [CDS] 16-Jun-1998
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

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