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J/ApJ/704/750      Rotational behavior of metal-poor stars       (Cortes+, 2009)

An overview of the rotational behavior of metal-poor stars. Cortes C., Silva J.R.P., Recio-Blanco A., Catelan M., Do Nascimento J.D., De Medeiros J.R. <Astrophys. J., 704, 750-769 (2009)> =2009ApJ...704..750C
ADC_Keywords: Abundances, [Fe/H] ; Clusters, globular ; Magnitudes ; Stars, metal-deficient Keywords: stars: evolution - stars: fundamental parameters - stars: Population II - stars: rotation - stars: statistics Abstract: This paper describes the behavior of the rotational velocity in metal-poor stars ([Fe/H]≤-0.5dex) in different evolutionary stages, based on vsini values from the literature. Our sample is comprised of stars in the field and some Galactic globular clusters, including stars on the main sequence, the red giant branch (RGB), and the horizontal branch (HB). The metal-poor stars are, mainly, slow rotators, and their vsini distribution along the HR diagram is quite homogeneous. Nevertheless, a few moderate to high values of vsini are found in stars located on the main sequence and the HB. We show that the overall distribution of vsini values is basically independent of metallicity for the stars in our sample. We present an extensive tabulation of all quantities discussed in this paper, including rotation velocities, temperatures, gravities, and metallicities [Fe/H], as well as broadband magnitudes and colors. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 36 10 Chemical and photometrical parameters for Galactic globular clusters table3.dat 57 316 Data characteristics of field metal-poor stars table4.dat 90 214 Data characteristics of globular cluster stars
See also: VII/202 : Globular Clusters in the Milky Way (Harris, 1997) I/239 : The Hipparcos and Tycho Catalogues (ESA 1997) J/A+A/458/895 : vsini of evolved metal-poor stars (de Medeiros+, 2006) J/A+A/434/235 : Abundances of BHB stars in NGC 1904 (Fabbian+, 2005) J/A+A/364/102 : Abundances of field BHB star candidates (Kinman+, 2000) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 4 A4 --- M Messier cluster identification 6- 13 A8 --- NGC NGC cluster identification 15- 19 F5.2 [Sun] [Fe/H] Metallicity 21- 25 F5.2 mag VMag Absolute V-band magnitude 27- 31 F5.2 mag (m-M)V Distance modulus in V-band 33- 36 F4.2 mag E(B-V) Extinction
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 14 A14 --- Name Star name 15- 19 I5 K Teff Effective temperature 21- 24 F4.2 [cm/s2] logg Surface gravity 26- 30 F5.1 km/s vsini Rotational velocity 32 A1 --- l_[Fe/H] Limit flag on [Fe/H] 33- 37 F5.2 [-] [Fe/H] Metallicity 39- 43 F5.2 mag Vmag ? SIMBAD V-band magnitude 45- 49 F5.2 mag B-V ? SIMBAD (B-V) color index 51- 55 F5.2 mag V-I ? (V-I) color index from Hipparcos (Cat. I/239) 57 I1 --- Ref Reference for vsini (1)
Note (1): References as follows: 1 = Kinman et al. 2000, Cat. J/A+A/364/102; 2 = Behr 2003ApJS..149..101B; 3 = Carney et al. 2003AJ....125..293C; 4 = De Medeiros et al. 2006, Cat. J/A+A/458/895; 5 = Carney et al. 2008AJ....135..892C.
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 7 A7 --- Cl Cluster name 9- 16 A8 --- Name Star name 18- 27 A10 --- OID Other identification(s) 29- 33 I5 K Teff ? Effective temperature 35- 38 F4.2 [cm/s2] logg ? Surface gravity 40- 44 F5.2 km/s vsini Rotational velocity 46- 50 F5.2 [Sun] [Fe/H] ? Metallicity 52- 56 F5.2 mag Vmag ? Apparent V magnitude (1) 58- 62 F5.2 mag B-V ? (B-V) color index (1) 64- 68 F5.2 mag mag ? Magnitude in band according to flag 70- 74 F5.2 mag CI ? Color index according to flag n_mag 75 A1 --- n_mag [a-e] Flag indicating in which band are "mag" and "CI" (2) 77- 80 F4.2 mag VMag ? Absolute V-band magnitude (MV) (3) 82- 86 F5.2 mag (B-V)0 ? Dereddened (B-V) color index (3) 88- 90 A3 --- Ref Reference(s) (4)
Note (1): For the stars in M 79, the V values are based on measurements using the y passband of the Stromgren system, since V and y magnitudes are well known to be basically identical (Clem et al. 2004, Cat. J/AJ/127/1227). Note (2): Flag as follows: a = (V-I) Johnson system. b = u, (u-y) Stromgren system. c = F555W, (F439W-F555W) Stromgren system. d = (U-V) Johnson system. e = U, (U-B) Johnson system. Note (3): We calculated the absolute magnitude MV and the unreddened color (B-V)0 provided using the distance modulus and reddening values compiled in Harris (1996, Cat. VII/195, superseded by VII/202) for each globular cluster (see Table 2). Note (4): References as follows: 1 = Peterson 1985ApJ...289..320P; 2 = Peterson et al. 1995ApJ...453..214P; 3 = Cohen & McCarthy 1997AJ....113.1353C; 4 = Recio-Blanco et al. 2002ApJ...572L..71R; 5 = Behr 2003ApJS..149...67B; 6 = Crocker et al. 1988ApJ...332..236C; 7 = Moehler et al. 1995A&A...294...65M; 8 = Fabbian et al. 2005, Cat. J/A+A/434/235.
History: From electronic version of the journal
(End) Emmanuelle Perret [CDS] 10-Nov-2011
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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