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J/A+A/331/633       IUE spectra of lambda Boo stars (Solano+ 1998)

Identification of Lambda Bootis stars using IUE spectra. I. Low Resolution Data Solano E., Paunzen E. <Astron. Astrophys. 331, 633 (1998)> =1998A&A...331..633S (SIMBAD/NED BibCode)
ADC_Keywords: Stars, peculiar ; Stars, early-type ; Spectra, ultraviolet Mission_Name: IUE Keywords: Stars: chemically peculiar - stars: early type - ultraviolet stars Abstract: An analysis of the stars included in the catalogue of λ Bootis stars by Paunzen et al. (1997, Cat. J/A+AS/123/93) and which also have IUE observations is presented here. Population I A-F type stars as well as field horizontal branch stars were also included in the analysis. Using line-ratios of carbon to heavier elements (Al and Ni) allows us to establish unambiguous membership criteria for the λ Bootis group. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 102 41 Lambda Bootis stars included in Paper I (Pauzen et al., 1997, Cat. J/A+AS/123/93) with ultraviolet observations table2.dat 102 12 Same as table1.dat but for the field horizontal branch stars table3.dat 102 48 Same as table1.dat but for the standard stars tables.tex 110 188 LaTeX version of the tables
See also: J/A+AS/123/93 : Lambda Boo stars consolidated catalogue (Paunzen+ 1997) Byte-by-byte Description of file: table?.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Star identification 11- 14 I4 K Teff ? Effective temperature (this work) 16- 19 I4 K Teff2 ? Effective temperature from other work (1) 21- 22 I2 --- r_Teff2 ? Reference for Teff2 25- 28 I4 K Teff3 ? Effective temperature from other work (1) 30- 31 I2 --- r_Teff3 ? Reference for Teff3 34- 37 I4 K Teff4 ? Effective temperature from other work (1) 39- 40 I2 --- r_Teff4 ? Reference for Teff4 42- 45 F4.2 [cm/s2] log(g) ? Surface gravity 48- 49 I2 --- r_log(g) ? Reference for log(g) (2) 52- 60 A9 ----- Images IUE Images (SWP/LWP). (3) 62- 66 F5.2 0.1nm EW(1657/2800) ? Equivalent width at 1657/2800A 68- 71 F4.2 0.1nm EW(1670) ? Equivalent width at 1670A 73- 76 F4.2 0.1nm EW(1741) ? Equivalent width at 1741A 78- 81 F4.2 0.1nm EW(1931) ? Equivalent width at 1931A 83- 84 I2 h RAh Right Ascension J2000 (hours) 86- 87 I2 min RAm Right Ascension J2000 (minutes) 89- 92 F4.1 s RAs Right Ascension J2000 (seconds) 94 A1 --- DE- Declination J2000 (sign) 95- 96 I2 deg DEd Declination J2000 (degrees) 98- 99 I2 arcmin DEm Declination J2000 (minutes) 101-102 I2 arcsec DEs ?Declination J2000 (seconds)
Note (1): Sources for Teff: 1: Iliev & Barzova (1995A&A...302..735I) 2: Stuerenburg (1993A&A...277..139S) 3: Venn & Lambert (1990ApJ...363..234V) 4: North et al. (1994A&A...281..775N) 5: Cacciari et al. (1987A&A...183..314C) 6: Huenemoerder et al. (1984AJ.....89..851H) 7: De Boer et al. (1997A&A...317L..23) 8: Adelman & Philip (1990MNRAS.247..132A) 9: Hayes & Philip (1988PASP..100..801H) 11: Holweger & Rentzsch-Holm (1995A&A...303..819H) 12: Smalley & Dworetsky (1995A&A...293..446S) 13: Blackwell & Lynas-Gray (1994, Cat. J/A+A/282/899) 14: Alonso et al. (1996A&A...313..873A) 15: Malagnini & Morossi (1990A&AS...85.1015M) 16: Smalley (1993MNRAS.265.1035S) 17: Smalley & Dworetsky (1993A&A...271..515S) 18: Napiwotzki et al. (1993A&A...268..653N) 19: Adelman et al. (1980ApJS...43..491A) 20: Nissen (1981A&A....97..145N) 21: Van Veer-Menneret et al. (1989A&A...224..171V) 22: Hill & Landstreet (1993, Cat. J/A+A/276/142) 23: Gerbaldi et al. (1989A&AS...81..127G) 24: Adelman (1978ApJ...222..547A) Note (2): Sources for log(g): 6: Huenemoerder et al. (1984AJ.....89..851H) 9: Hayes & Philip (1988PASP..100..801H) nothing: this work Note (3): Camera and image number. The L and S following the image number indicates the aperture used (Large or Small)
Acknowledgements: Enrique Solano History: The positions (from SIMBAD) were added in December 2000.
(End) Patricia Bauer [CDS] 04-Nov-1997
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