Access to Astronomical Catalogues

← Click to display the menu
J/ApJ/771/40     Main-sequence A, F, G, and K stars photometry (Boyajian+, 2013)

Stellar diameters and temperatures. III. Main-sequence A, F, G, and K stars: additional high-precision measurements and empirical relations. Boyajian T.S., Von Braun K., Van Belle G., Farrington C., Schaefer G., Jones J., White R., McAlister H.A., Ten Brummelaar T.A., Ridgway S., Gies D., Sturmann L., Sturmann J., Turner N.H., Goldfinger P.J., Vargas N. <Astrophys. J., 771, 40 (2013)> =2013ApJ...771...40B (SIMBAD/NED BibCode)
ADC_Keywords: Stars, dwarfs ; Photometry ; Morphology Keywords: Hertzsprung-Russell and C-M diagrams - infrared: stars - planetary systems - stars: atmospheres - stars: fundamental parameters - stars: general - stars: solar-type - techniques: high angular resolution - techniques: interferometric Abstract: Based on CHARA Array measurements, we present the angular diameters of 23 nearby, main-sequence stars, ranging from spectral types A7 to K0, 5 of which are exoplanet host stars. We derive linear radii, effective temperatures, and absolute luminosities of the stars using Hipparcos parallaxes and measured bolometric fluxes. The new data are combined with previously published values to create an Angular Diameter Anthology of measured angular diameters to main-sequence stars (luminosity classes V and IV). This compilation consists of 125 stars with diameter uncertainties of less than 5%, ranging in spectral types from A to M. The large quantity of empirical data is used to derive color-temperature relations to an assortment of color indices in the Johnson (BVRJIJJHK), Cousins (RCIC), Kron (RKIK), Sloan (griz), and WISE (W3W4) photometric systems. These relations have an average standard deviation of ∼3% and are valid for stars with spectral types A0-M4. To derive even more accurate relations for Sun-like stars, we also determined these temperature relations omitting early-type stars (Teff>6750K) that may have biased luminosity estimates because of rapid rotation; for this subset the dispersion is only ∼2.5%. We find effective temperatures in agreement within a couple of percent for the interferometrically characterized sample of main-sequence stars compared to those derived via the infrared flux method and spectroscopic analysis. Description: Akin to the observing outlined in DT1 and DT2, observations for this project were made with the CHARA Array, a long-baseline optical/infrared interferometer located on Mount Wilson Observatory in southern California. The target stars were selected based on their approximate angular size (a function of their intrinsic linear size and distance to the observer). We limit the selection to stars with angular sizes >0.45mas, in order to adequately resolve their sizes to a few percent precision with the selected instrument setup. Note that all stars that meet this requirement are brighter than the instrumental limits of our detector by several magnitudes. The stars also have no known stellar companion within 3-arcsec to avoid contamination of incoherent light in the interferometers' field of view. From 2008 to 2012, we used the CHARA Classic beam combiner operating in the H band (λH=1.67um) and the K' band (λK'=2.14um) to collect observations of 23 stars using CHARA's longest baseline combinations. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 51 23 New angular diameters table4.dat 38 5736 Object photometry used in SED fits for 91 stars table5.dat 131 89 Spectral types and bolometric fluxes table7.dat 114 94 Photometry used in color-temperature relations from erratum (2014, ApJ, 787, 92) refs.dat 163 204 References
See also: J/ApJ/746/101 : Diameters and temperatures of AFG stars (Boyajian+, 2012) J/ApJ/757/112 : Stellar diameters. II. K and M-stars (Boyajian+, 2012) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 2 A2 --- --- [HD] 4- 9 I6 --- HD Star HD number 11- 12 I2 --- Nobs Number of observations 14- 17 F4.2 --- chi2r Reduced χ2 19- 23 F5.3 mag thetaUD Uniform disk angular diameter function (1) 25- 29 F5.3 mag e_thetaUD rms uncertainty on thetaUD 31- 35 F5.3 --- mulambda Limb-darkening coefficient (1) 37- 41 F5.3 mag thetaLD Limb-darkened angular diameter function (1) 43- 47 F5.3 mag e_thetaLD rms uncertainty on thetaLD 49- 51 F3.1 % ethetaLD Percentage error on thetaLD
Note (1): Refer to Section 2.1 for details.
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 2 A2 --- --- [HD] 3- 8 I6 --- HD Star HD number 10- 16 A7 --- System System used or Wavelength in Angstroms 18- 22 A5 --- Band Bandpass or band width 24- 28 F5.2 mag mag Observed magnitude in Band 30- 34 F5.2 mag e_mag Error in mag 36- 38 I3 --- r_mag Reference in refs.dat file
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HD Star HD number 8- 20 A13 --- SpType1 First template spectral type 22- 33 A12 --- SpType2 Second template spectral type 35- 40 A6 --- r_SpType1 Reference for SpType1 and SpType3 (1) 42- 46 A5 --- SpType3 Additional spectral type if necessary for adequate SED fitting 49- 51 I3 --- DF Fit degree of freedom 53- 57 F5.2 --- chi2/DF1 χ2-per-DF metric for first template 58 A1 --- --- [,] 59- 63 F5.2 --- chi2/DF2 ? χ2-per-DF metric for second template 64 A1 --- --- [,] 65- 68 F4.2 --- chi2/DF3 ? χ2-per-DF metric for third template 71- 80 A10 --- SpTypeph Photometric spectral type best fit 82- 89 F8.2 10-11W/m2 Fbolph Photometric bolometric flux for SpTypeph (2) 91- 95 F5.2 10-11W/m2 e_Fbolph rms uncertainty on Fbolph 97-100 F4.2 --- chi2/DFph ?=- Photometric χ2-per-DF metric 102-108 A7 --- SpTypeSp Spectrohpotometric spectral type best fit 110-118 F9.3 10-11W/m2 FbolSp ?=- Spectrohpotometric bolometric flux for SpTypeSp (2) 120-125 F6.3 10-11W/m2 e_FbolSp ? rms uncertainty on FbolSp 127-131 A5 --- r_SpTypeSp Reference for spectrophotometric data (3)
Note (2): Bolometric fluxes of target stars based upon Pickles (1998, Cat. J/PASP/110/863) spectral templates fit to literature spectral types with photometry in the literature (in Table 4), and extended by spectrophotometry when available. Note (1): References for the first and second spectral types, as found from the index by Skiff (2013, Cat. B/mk), as follows: 1 = Macrae, 1952ApJ...116..592M 2 = Cowley et al., 1967AJ.....72.1334C 3 = Hagen & van den Bergh, 1967PDDO....2..479H 4 = Barry, 1970ApJS...19..281B 5 = Schmitt, 1971ApJ...163...75S 6 = Morgan & Keenan, 1973ARA&A..11...29M 7 = Harlan, 1974AJ.....79..682H, Cat. III/171 8 = Houk & Cowley, 1975MSS...C01....0H, Cat. III/31 9 = Cowley, 1976PASP...88...95C 10 = Levato & Abt, 1978PASP...90..429L 11 = Cowley & Bidelman, 1979PASP...91...83C 12 = Jensen, 1981A&AS...45..455J 13 = Abt, 1981ApJS...45..437A, Cat. III/106 14 = Bouw, 1981PASP...93...45B 15 = Abt, 1985, Cat. J/ApJS/59/95 16 = Abt, 1986ApJ...309..260A 17 = Gray, 1989AJ.....98.1049G 18 = Gray & Garrison, 1989ApJS...69..301G 19 = Gray & Garrison, 1989ApJS...70..623G 20 = Keenan & McNeil, 1989ApJS...71..245K, Cat. III/150 21 = Abt & Morrell, 1995, Cat. J/ApJS/99/135 22 = Gray et al., 2001, Cat. J/AJ/121/2148 23 = Gray et al., 2003, Cat. J/AJ/126/2048 24 = Gray et al. 2006, Cat. J/AJ/132/161 25 = Abt, 2008, Cat. J/ApJS/176/216 26 = Zorec et al., 2009, Cat. J/A+A/501/297 27 = Abt, 2009, Cat. J/ApJS/180/117 Note (3): Spectrophotometry references as follows: 1 = Burnashev, 1985BCrAO..66..152B 2 = Alekseeva et al., 1996BaltA...5..603A, Cat. III/201, 1997BaltA...6..481A, Cat. III/201 3 = Kharitonov et al., 1988, Cat. III/202 4 = Glushneva et al. 1998, Cat. III/207 5 = Glushneva et al. 1998, Cat. III/208
Byte-by-byte Description of file: table7.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HD Star HD number 8- 12 F5.2 mag Bmag Johnson B magnitude (1) 14- 18 F5.2 mag Vmag Johnson V magnitude (1) 20- 24 F5.2 mag RJmag ?=- Johnson R magnitude (1) 26- 30 F5.2 mag IJmag ?=- Johnson I magnitude (1) 32- 36 F5.2 mag Jmag Johnson J magnitude (1) 37- 38 A2 --- n_Jmag [cd ] Note on Jmag (2) 40- 44 F5.2 mag Hmag Johnson H magnitude (1) 45- 47 A3 --- n_Hmag [cde ] Note on Hmag (2) 48- 52 F5.2 mag Kmag Johnson K magnitude (1) 53- 54 A2 --- n_Kmag [cd ] Note on Kmag (2) 56- 60 F5.2 mag RCmag ?=- Cousins R magnitude (1) 62- 66 F5.2 mag ICmag ?=- Cousins I magnitude (1) 68- 72 F5.2 mag RKmag ?=- Kron R magnitude (1) 74- 78 F5.2 mag IKmag ?=- Kron I magnitude (1) 80- 84 F5.2 mag gmag ?=- g magnitude (3) 86- 90 F5.2 mag rmag ?=- r magnitude (3) 92- 96 F5.2 mag imag ?=- i magnitude (3) 98-102 F5.2 mag zmag ?=- z magnitude (3) 104-108 F5.2 mag W3mag ?=- Wise W3 magnitude (4) 110-114 F5.2 mag W4mag ?=- Wise W4 magnitude (4)
Note (1): Photometry sources include: Johnson et al. (1966CoLPL...4...99J, 1968ApJ...152..465Jw), Epps (1972RGOB..176..127E), Glass (1974MNSSA..33...53G, 1975MNRAS.171p..19G), Guetter (1977AJ.....82..598G), Blackwell et al. (1979MNRAS.188..847B, 1990A&A...232..396B), Noguchi et al. (1981PASJ...33..373N), Sandage & Kowal (1986AJ.....91.1140S), Arribas & Martinez Roger (1989A&A...215..305A), Aumann & Probst (1991ApJ...368..264A), Alonso et al. (1994A&A...282..684A, 1994A&AS..107..365A), Sylvester et al. (1996MNRAS.279..915S), Mermilliod (1997, Cat. II/168), Ducati (2002, cat. II/237), Cousins (1980SAAOC...1..166C), Kron et al. (1957AJ.....62..205K), and Wright et al. (2010AJ....140.1868W). See Section 3 for details. Note (2): Notes as follows: c = when 2MASS magnitude converted to the Johnson system, see Section 3 for details d = missing label in original Table 7 e = incorrect input value (H=4.44) was used to derive the value in original Table 7 Note (3): Average from Ofek (2008, Cat. J/PASP/120/1128) and Pickles & Depagne (2010PASP..122.1437P, Cat. VI/135). Note (4): The WISE W3 and W4 magnitudes have been filtered to only allow values that have not reached saturation limits (W3<3.8mag and W4←0.4mag).
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Ref Reference number 5- 23 A19 --- BibCode BibeCode 25- 52 A28 --- Aut Author's name 56-163 A108 --- Com Comments
History: From electronic version of the journal References: Boyajian et al., Paper I 2012ApJ...746..101B, Cat. J/ApJ/746/101 Boyajian et al., Paper II 2012ApJ...757..112B, Cat. J/ApJ/757/112 Boyajian et al., Paper IV 2014AJ....147...47B von Braun et al., Paper V 2014MNRAS.438.2413V Boyajian et al., Paper VI 2015MNRAS.447..846B
(End) Patricia Vannier [CDS] 09-Jul-2016
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

catalogue service

© UDS/CNRS

Contact