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J/AJ/119/2214   Photometry of Magellanic OB associations   (Massey+, 2000)

The progenitor masses of Wolf-Rayet stars and luminous blue variables determined from cluster turnoffs. I. Results from 19 OB Associations in the Magellanic Clouds Massey P., Waterhouse E., DeGioia-Eastwood K. <Astron. J. 119, 2214 (2000)> =2000AJ....119.2214M
ADC_Keywords: Magellanic Clouds ; Photometry, UBV ; Stars, Wolf-Rayet ; Stars, early-type Keywords: Magellanic Clouds - stars: early-type - stars: evolution - stars: Wolf-Rayet Abstract: We combine new CCD UBV photometry and spectroscopy with those from the literature to investigate 19 Magellanic Cloud OB associations that contain Wolf-Rayet (W-R) and other types of evolved, massive stars. Our spectroscopy reveals a wealth of newly identified interesting objects, including early O-type supergiants, a high-mass, double-lined binary in the SMC, and, in the LMC, a newly confirmed luminous blue variable (LBV; R85), a newly discovered W-R star (Sk -69deg 194), and a newly found luminous B[e] star (LH 85-10). We use these data to provide precise reddening determinations and construct physical H-R diagrams for the associations. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 164 548 Catalog of Photometry and spectroscopy of 19 Magellanic Cloud OB associations table5.dat 111 184 Derived parameters for the highest mass unevolved stars
See also: J/ApJS/91/583 : MC massive stars IMF. I. (Hill+, 1994) J/AJ/108/1256 : The OB association LH 58 (Garmany+, 1994) J/A+A/301/396 : Photometry of NGC 1962-65-66-70 (Will J.-M.+, 1995) J/ApJS/104/71 : UBV photometry of OB associations in LMC superbubbles (Oey 1996) J/AJ/118/1684 : UBV photometry of 4 LMC compact OB groups (Walborn+, 1999) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Assoc Association name (1) 10 A1 --- n_Assoc [cd] Color correction required (2) 13- 31 A19 --- Name1 Object name 33- 50 A18 --- Name2 Second name of object 52- 60 A9 --- Name3 Third name of object 62- 68 A7 --- Name4 Fourth name of object 71- 72 I2 h RAh ? Right Ascension (J2000) 74- 75 I2 min RAm ? Right Ascension (J2000) 77- 81 F5.2 s RAs ? Right Ascension (J2000) 85 A1 --- DE- Declination (J2000) 86- 87 I2 deg DEd ? Declination (J2000) 89- 90 I2 arcmin DEm ? Declination (J2000) 92- 95 F4.1 arcsec DEs ? Declination (J2000) 98-102 F5.2 mag Vmag ? The V band magnitude 104-108 F5.2 mag (B-V) ? The (B-V) color 110-114 F5.2 mag (U-B) ? The (U-B) color 117 A1 --- f_Comments [b] Indicates luminosity class adjusted based upon MV 120-164 A45 --- Comments Spectral type and/or comments (3)
Note (1): NGC 346 = See Massey et al. (1989AJ.....98.1305M) LH 9 = See Walborn et al. (1999AJ....118.1684W) LH 47 = See Oey & Massey (1995ApJ...452..210O) LH 58 = See Garmany et al. (1994AJ....108.1256G) LH 101 = Tester & Niemela (1998A&AS..130..527T) Note (2): c = U-B colors of L 39 may require a correction of -0.13 mag. See text. d = U-B colors of LH 41 may require a correction of -0.15 mag. See text. Note (3): HM93 = Heydari-Malayeri et al. (1993A&A...278...11H) M95 = Massey et al. (1995ApJ...438..188M) S87 = Schild (1987A&A...173..405S) ST92 = Schild & Testor (1992A&AS...92..729S) TN98 = Testor & Niemela (1998A&AS..130..527T) W99 = Walborn et al. (1999AJ....118.1684W) Z93 = Zickgraf (1993)
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Assoc Association name 11 A1 --- n_Assoc [abcd] Stellar identification (1) 13- 26 A14 --- Name1 Object name 28- 33 A6 --- Name2 Second name of object 36- 40 F5.3 [K] logT Derived Log of the effective temperature 41 A1 --- u_logT Indicates an uncertain LogT 43- 46 F4.1 mag VMag Derived Absolute V band magnitude 47 A1 --- u_VMag Indicates an uncertain VMag 49- 53 F5.1 mag Mbol Derived Bolometric magnitude 54 A1 --- u_Mbol Indicates an uncertain MBol 56- 58 I3 solMass Mass Derived Mass in solar units 59 A1 --- u_Mass Indicates an uncertain Mass 61- 64 F4.2 [Myr] logAge Derived Log of the age in Myrs 65 A1 --- u_logAge Indicates an uncertain LogAge 67-111 A45 --- Comments Spectral type and/or comment
Note (1): a = Star identification from Massey et al. (1989AJ.....98.1305M) b = Star identification from Oey & Massey (1995ApJ...452..210O) c = Star identification from Garmany et al. (1994AJ....108.1256G) d = Star identification from Testor & Niemela (1998A&AS..130..527T)
History: * 23-May-2000: Prepared by Greg Schwarz [AAS] * 25-Jan-2009: Correction in table2 of the position of Sk-68 59 (error communicated by Brian Skiff, Lowell Obs., agreed by the author Phil Massey) References: Zickgraf, F.-J. 1993, in New Aspects of Magellanic Cloud Research, ed. B. Baschek, G. Klare, & J. Lequeux (Berlin: Springer), 257
(End) Greg Schwarz [AAS] 23-May-2000
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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