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 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:
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FileName Lrecl Records Explanations
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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
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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
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Bytes Format Units Label Explanations
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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
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Note (1): Refer to Section 2.1 for details.
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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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
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Byte-by-byte Description of file: table5.dat
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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)
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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 1952ApJ...116..592M
2 = Cowley et al., 1967AJ.....72.1334C 1967AJ.....72.1334C
3 = Hagen & van den Bergh, 1967PDDO....2..479H 1967PDDO....2..479H
4 = Barry, 1970ApJS...19..281B 1970ApJS...19..281B
5 = Schmitt, 1971ApJ...163...75S 1971ApJ...163...75S
6 = Morgan & Keenan, 1973ARA&A..11...29M 1973ARA&A..11...29M
7 = Harlan, 1974AJ.....79..682H 1974AJ.....79..682H, Cat. III/171
8 = Houk & Cowley, 1975MSS...C01....0H 1975MSS...C01....0H, Cat. III/31
9 = Cowley, 1976PASP...88...95C 1976PASP...88...95C
10 = Levato & Abt, 1978PASP...90..429L 1978PASP...90..429L
11 = Cowley & Bidelman, 1979PASP...91...83C 1979PASP...91...83C
12 = Jensen, 1981A&AS...45..455J 1981A&AS...45..455J
13 = Abt, 1981ApJS...45..437A 1981ApJS...45..437A, Cat. III/106
14 = Bouw, 1981PASP...93...45B 1981PASP...93...45B
15 = Abt, 1985, Cat. J/ApJS/59/95
16 = Abt, 1986ApJ...309..260A 1986ApJ...309..260A
17 = Gray, 1989AJ.....98.1049G 1989AJ.....98.1049G
18 = Gray & Garrison, 1989ApJS...69..301G 1989ApJS...69..301G
19 = Gray & Garrison, 1989ApJS...70..623G 1989ApJS...70..623G
20 = Keenan & McNeil, 1989ApJS...71..245K 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 1985BCrAO..66..152B
2 = Alekseeva et al., 1996BaltA...5..603A 1996BaltA...5..603A, Cat. III/201,
1997BaltA...6..481A 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
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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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)
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Note (1): Photometry sources include: Johnson et al. (1966CoLPL...4...99J 1966CoLPL...4...99J,
1968ApJ...152..465J 1968ApJ...152..465Jw), Epps (1972RGOB..176..127E 1972RGOB..176..127E), Glass (1974MNSSA..33...53G 1974MNSSA..33...53G,
1975MNRAS.171p..19G 1975MNRAS.171p..19G), Guetter (1977AJ.....82..598G 1977AJ.....82..598G), Blackwell et al.
(1979MNRAS.188..847B 1979MNRAS.188..847B, 1990A&A...232..396B 1990A&A...232..396B), Noguchi et al.
(1981PASJ...33..373N 1981PASJ...33..373N), Sandage & Kowal (1986AJ.....91.1140S 1986AJ.....91.1140S),
Arribas & Martinez Roger (1989A&A...215..305A 1989A&A...215..305A),
Aumann & Probst (1991ApJ...368..264A 1991ApJ...368..264A), Alonso et al. (1994A&A...282..684A 1994A&A...282..684A,
1994A&AS..107..365A 1994A&AS..107..365A), Sylvester et al. (1996MNRAS.279..915S 1996MNRAS.279..915S),
Mermilliod (1997, Cat. II/168), Ducati (2002, cat. II/237),
Cousins (1980SAAOC...1..166C 1980SAAOC...1..166C), Kron et al. (1957AJ.....62..205K 1957AJ.....62..205K), and
Wright et al. (2010AJ....140.1868W 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 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).
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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- 3 I3 --- Ref Reference number
5- 23 A19 --- BibCode BibeCode
25- 52 A28 --- Aut Author's name
56-163 A108 --- Com Comments
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History:
From electronic version of the journal
References:
Boyajian et al., Paper I 2012ApJ...746..101B 2012ApJ...746..101B, Cat. J/ApJ/746/101
Boyajian et al., Paper II 2012ApJ...757..112B 2012ApJ...757..112B, Cat. J/ApJ/757/112
Boyajian et al., Paper IV 2014AJ....147...47B 2014AJ....147...47B
von Braun et al., Paper V 2014MNRAS.438.2413V 2014MNRAS.438.2413V
Boyajian et al., Paper VI 2015MNRAS.447..846B 2015MNRAS.447..846B
(End) Patricia Vannier [CDS] 09-Jul-2016