J/A+AS/142/275 Stellar activity of late-type stars (Strassmeier+ 2000)
The Vienna-KPNO search for Doppler-imaging candidate stars
I. A catalog of stellar-activity indicators for 1058 late-type Hipparcos stars
Strassmeier K. G., Washuettl A., Granzer T., Scheck M., Weber M.
<Astron. Astrophys. Suppl. Ser. 142, 275 (2000)>
=2000A&AS..142..275S 2000A&AS..142..275S
ADC_Keywords: Stars, late-type ; Parallaxes, trigonometric ; Radial velocities ;
Equivalent widths ; Rotational velocities
Keywords: stars: activity - stars: chromospheres - stars: late-type -
stars : rotation - surveys
Abstract:
We present the results from a spectroscopic CaII H&K survey of 1058
late-type stars selected from a color-limited subsample of the
Hipparcos (Cat. I/239) catalog. Out of these 1058 stars, 371 stars
were found to show significant H&K emission, most of them previously
unknown; 23% with strong emission, 36% with moderate emission, and 41%
with weak emission. These spectra are used to determine absolute H&K
emission-line fluxes, radial velocities, and equivalent widths of the
luminosity-sensitive Sr II line at 4077Å. Red-wavelength
spectroscopic and Stroemgren y photometric follow-up observations of
the 371 stars with H&K emission are used to additionally determine the
absolute Hα-core flux, the lithium abundance from the Li I
6708Å equivalent width, the rotational velocity vsini, the radial
velocity, and the light variations and its periodicity.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 181 798 Stars with CaII H&K emission
tablea2.dat 146 766 Stars without emission
tablea3.dat 98 205 Results from photometric survey
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Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Name HD, HIP or SAO number or variable name
13- 16 F4.2 mag Vmag ? V magnitude
18- 22 A5 --- SpT Spectral type (1)
24- 27 F4.2 mag B-V ? Johnson B-V colour index
29- 32 I4 K Teff ? Effective temperature
34- 39 F6.2 mas plx ? Trigonometric parallax
40 A1 --- u_plx Uncertainty flag on plx
41- 45 F5.2 mag VMAG ? Absolute visual brightness
47- 49 A3 --- LC Luminosity class
52 I1 km/s MT ? Macro turbulence
54- 57 F4.2 mag V-R ? Johnson V-R colour index
59- 61 F3.1 --- I(K) ? [0,5] CaII K emission-line strength
62 A1 --- u_I(K) [?] ?: Unknown value
64- 75 F12.4 d HJD Heliocentric Julian Date
77- 82 F6.1 km/s RV ? Heliocentric radial velocity
83 A1 --- f_RV [c] 'c': combined values for SB systems
85- 88 F4.1 km/s e_RV ? Standard error in RV
90- 95 F6.1 km/s Uvel ? Space velocity towards the galactic center
97-102 F6.1 km/s Vvel ? Space vel. in direction of gal. rotation
104-108 F5.1 km/s Wvel ? Space vel. in direction of gal. north pole
110-113 F4.2 [mW/m2] logFK ? Logarithmic CaII K line flux in erg/cm2/s
115-118 F4.2 [mW/m2] logFH ? Logarithmic CaII H line flux in erg/cm2/s
120-123 F4.2 [mW/m2] logF'K ? Logarithmic pure chromospheric CaII K flux
125-128 F4.2 [mW/m2] logF'H ? Logarithmic pure chromospheric CaII H flux
130-135 E6.1 --- R(HK) ? Activity index (F'H+F'K)/(σ*Teff4)
137-140 I4 0.1pm Ha1A ? 1-Å equivalent width of H-α core
141 A1 --- f_Ha1A [c] 'c': combined values for SB systems
144-147 F4.2 [mW/m2] logFHa ? Log. H-α core flux in erg/cm2/s
148 A1 --- f_logFHa [c] 'c': combined values for SB systems
150-153 I4 0.1pm WLi ? Equivalent width of LiI 6708 (mÅ)
154 A1 --- f_WLi [c] 'c': combined values for SB systems
156-160 F5.2 [-] logNLi ? Logarithmic LiI 6708 abundance (H=12)
161 A1 --- f_logNLi [c] 'c': combined values for SB systems
162 A1 --- l_vsini Limit flag on vsini
163-167 F5.1 km/s vsini ? Projected rotational velocity
170-173 I4 0.1pm WSr ? Equivalent width of SrII 4077 (mÅ)
174 A1 --- f_WSr [c] 'c': combined values for SB systems
177-180 F4.2 --- ISr ? Residual intensity of SrII 4077
181 A1 --- f_ISr [c] 'c': combined values for SB systems
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Note (1): Angles, "< >", denote combined values for components of SB systems.
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Name HD, HIP or SAO number or variable name
13- 16 F4.2 mag Vmag ? V magnitude
18- 22 A5 --- SpT Spectral type (1)
24- 27 F4.2 mag B-V ? Johnson B-V colour index
29- 32 I4 K Teff ? Effective temperature
34- 39 F6.2 mas Plx ? Trigonometric parallax
41- 45 F5.2 mag VMAG ? Absolute visual brightness
47- 49 A3 --- LC Luminosity class
51- 52 I2 km/s MT ? Macro turbulence
54- 57 F4.2 mag V-R ? Johnson V-R colour index
59- 70 F12.4 d HJD Heliocentric Julian Date
72- 77 F6.1 km/s RV ? Heliocentric radial velocity
79- 82 F4.1 km/s e_RV ? Standard error in RV
84- 89 F6.1 km/s Uvel ? Space velocity towards the galactic center
91- 96 F6.1 km/s Vvel ? Space vel. in direction of gal. rotation
98-102 F5.1 km/s Wvel ? Space vel. in direction of gal. north pole
104-107 F4.2 [mW/m2] logFK ? Logarithmic CaII K line flux in erg/cm2/s
109-112 F4.2 [mW/m2] logFH ? Logarithmic CaII H line flux in erg/cm2/s
114-117 F4.2 [mW/m2] logF'K ? Logarithmic pure chromospheric CaII K flux
119-122 F4.2 [mW/m2] logF'H ? Logarithmic pure chromospheric CaII H flux
124-129 E6.1 --- R(HK) ? Activity index (FH'+FK')/(σ*Teff4)
131 A1 --- l_vsini Limit flag on vsini
132-135 F4.1 km/s vsini ? Projected rotational velocity
137-140 I4 0.1pm WSr ? Equivalent width of SrII 4077 (mÅ)
142-145 F4.2 --- ISr ? Residual intensity of SrII 4077
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Note (1): Angles, "< >", denote combined values for components of SB systems.
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Byte-by-byte Description of file: tablea3.dat
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Bytes Format Units Label Explanations
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1 A1 --- f_Name [*] when star found to be variable
2- 10 A9 --- Name Variable star name
12 A1 --- f_Cmp [*] when Cmp star found to be variable
13- 21 A9 --- Cmp Comparison star name
23 A1 --- f_Chk [*] when Chk star found to be variable
24- 32 A9 --- Chk Check star name
34- 40 I7 d OBSbeg HJD of observation begin
42- 48 I7 d OBSend HJD of observation end
50- 54 F5.3 mag yAmp Stroemgren y-band amplitude
56 A1 --- l_Pphot Limit flag on Pphot
57- 63 F7.4 d Pphot ? Photometric period
65- 67 I3 --- Np Number of data points
69- 97 A29 --- Notes Individual notes
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Acknowledgements: Michael Scheck
(End) Patricia Bauer [CDS] 14-Feb-2000