J/ApJ/601/979 vsini of Orion low-mass stars (Wolff+, 2004)
The angular momentum evolution of 0.1-10M☉ stars from the birth line
to the main sequence.
Wolff S.C., Strom S.E., Hillenbrand L.A.
<Astrophys. J., 601, 979-999 (2004)>
=2004ApJ...601..979W 2004ApJ...601..979W
ADC_Keywords: Clusters, open ; Stars, pre-main sequence ; Photometry, UBVRI ;
Photometry, infrared ; Rotational velocities
Keywords: open clusters and associations: individual (Orion) -
stars: pre-main-sequence - stars: rotation
Abstract:
Projected rotational velocities (vsini) have been measured for a
sample of 145 stars with masses between 0.4 and greater than
10M☉ (median mass 2.1M☉) located in the Orion star-forming
complex. These measurements have been supplemented with data from the
literature for Orion stars with masses as low as 0.1M☉.
Description:
High-resolution (R∼20000) spectroscopic data were obtained in 1992
November and 1993 January with the Hydra multiobject spectrograph
mounted on the KPNO 4m telescope.
Near-infrared (JHK) observations were obtained for several hundred
stars in the Orion Ic/Id association that met the proper-motion
criteria defined above. The observations were made in 1991 November
and December with the OTTO photometer mounted on the KPNO 50 inch
telescope.
Objects:
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RA (2000) DE Designation(s)
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05 35 17.3 -05 23 28 Orion = M 42 = NGC 1976
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 154 145 Observed Parameters
table2.dat 65 145 Derived Parameters
refs.dat 111 40 References
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See also:
II/171 : Parenago Catalog of Stars in Orion Nebula (Parenago 1954)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Parenago Parenago (1954, II/171) number
6- 10 F5.2 mag Vmag The V band magnitude
12- 16 F5.2 mag B-V The (B-V) colour index
18- 22 F5.2 mag U-B ? The (U-B) colour index
24- 26 A3 --- r_Vmag The UBV photometry references
28- 32 F5.2 mag Icmag ? The Ic band magnitude
34- 38 F5.2 mag V-Ic ? The (V-Ic) colour index
40- 44 A5 --- r_Icmag Reference on Icmag
46- 50 F5.2 mag Jmag ? The J band magnitude
52- 56 F5.2 mag J-H ? The (J-H) band colour index
58- 62 F5.2 mag H-K ? The (H-K) band colour index
64 A1 --- n_Jmag [a-d] The JHK photometry references (1)
66- 74 A9 --- SpType MK spectral type
76- 86 A11 --- r_SpType Reference on SpType
88 A1 --- l_vsini1 Limit flag on vsini
89- 91 I3 km/s vsini1 Projected rotational velocity
92 A1 --- u_vsini1 Uncertainty flag on vsini
93 A1 --- --- [-] when interval
94- 95 I2 --- vsini1u ? Upper value of vsini interval
96-102 A7 --- n_vsini1u Note on vsini (2)
103 A1 --- --- [,]
104 A1 --- l_vsini2 Limit flag on vsini2
105-107 I3 km/s vsini2 ? Second value of projected rotational velocity
108 A1 --- --- [/]
109-111 I3 km/s vsini3 ? Third value of projected rotational velocity
112-118 A7 --- n_vsini2 Note on vsini2 (2)
119 A1 --- --- [,]
120-122 I3 --- vsini4 ? Fourth value of projected rotational velocity
124-134 A11 --- Refs References on vsini, detailed in refs.dat
136-139 I4 --- Brun ? The Brun (1935POLyo...1...12B 1935POLyo...1...12B) number,
NGC 1977 NNNN in Simbad
141-146 I6 --- HD ? The HD (Cat. III/135) number
148-151 I4 --- HR ? The HR (Cat. V/50) number
153-154 A2 --- WH Warren & Hesser (1997, Cat. II/36) projected
group
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Note (1): JHK photometry references are as follows:
a = this paper (1991) OTTO observations
b = this paper (1992) SQIID observations
c = this paper (1993) NICMASS observations
d = literature
Note (2): The notation (SB:nn) indicates a candidate spectroscopic binary
with nn corresponding to the amplitude of the radial velocity
variation among our different observations of the star. (SB1)
indicates an SB1 candidate identified in previous literature;
see r_vsini column.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Parenago Parenago (1954, II/171) number
6 A1 --- l_vsini Limit flag on vsini
7- 10 I4 km/s vsini Adopted projected rotational velocity
11 A1 --- u_vsini Uncertainty flag on vsini
13- 14 I2 --- r_vsini ? Reference on vsini (in this paper if blank)
16- 19 F4.2 mag A(V) Extinction in the V band
21- 25 F5.3 [K] logT Log of the effective temperature
27- 31 F5.2 [solLum] logL Log of the luminosity in solar units
33- 37 F5.2 solRad Rad Radius in solar units
39- 43 F5.2 [g.cm2] logI Log of the moment of inertia
45- 47 A3 --- Track [C/R ] HR diagram track (2)
49- 52 F4.2 [yr] logA ? Log of the Age
54- 58 F5.2 solMass Mass Mass in solar units
60- 64 F5.2 mag D(H-K) ? Difference between reddening-corrected H-K
color and underlying photospheric color
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Note (2): HR diagram track:
C = convective track
R = radiative track
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode BibCode
24- 51 A28 --- Aut Author's name
52-111 A60 --- Com Comments
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 06-Apr-2004