J/AJ/154/120 Radial velocities of HD 96511, HR 7578, and KZ And (Fekel+, 2017)
New precision orbits of bright double-lined spectroscopic binaries.
X. HD 96511, HR 7578, and KZ Andromedae.
Fekel F.C., Henry G.W., Tomkin J.
<Astron. J., 154, 120 (2017)>
=2017AJ....154..120F 2017AJ....154..120F (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Spectral types ; Photometry, UBV ;
Parallaxes, trigonometric ; Radial velocities
Keywords: binaries: spectroscopic - stars: fundamental parameters -
stars: individual (HD 96511, HR 7578, KZ And)
Abstract:
From an extensive number of newly acquired radial velocities we
determine the orbital elements for three late-type dwarf systems,
HD 96511, HR 7578, and KZ And. The orbital periods are 18.89737±0.00002,
46.81610±0.00006, and 3.0329113±0.0000005 days, respectively, and
all three systems are eccentric, although KZ And is just barely so. We
have detected lines of the secondary of HD 96511 for the first time.
The orbital dimensions (a1 sin i and a2 sin i) and minimum masses
(m1 sin3i and m2 sin3i) of the binary components all have
accuracies of 0.2% or better. Extensive photometry of the chromospherically
active binary HR 7578 confirms a rather long rotation period of
16.446±0.002 days and that the K3 V components do not eclipse. We
have estimated the basic properties of the stars in the three systems
and compared those results with evolutionary tracks. The results for
KZ And that we computed with the revised Hipparcos parallax of van Leeuwen
(Cat. I/311) produce inconsistencies. That parallax appears to be too
large, and so, instead, we used the original Hipparcos parallax of the
common proper motion primary, which improves the results, although
some problems remain.
Description:
Our new spectroscopic observations of HD 96511, HR 7578, and KZ And
were obtained at three observatories. The majority were acquired from
2003 through 2017 with the Tennessee State University 2 m automatic
spectroscopic telescope (AST) and a fiber-fed echelle spectrograph.
That telescope is part of Fairborn Observatory near Washington Camp in
the Patagonia Mountains of southeastern Arizona (Eaton & Williamson
2004SPIE.5496..710E 2004SPIE.5496..710E, 2007PASP..119..886E 2007PASP..119..886E).
From 2005 through 2011 we acquired additional spectrograms at the Kitt
Peak National Observatory (KPNO) with the coude feed telescope and
coude spectrograph. Most of the observations were obtained with a Texas
Instruments (TI) CCD detector.
Finally, at McDonald Observatory in 2005 and 2006 we collected four
spectra with the 2.1 m telescope, the Sandiford Cassegrain echelle
spectrograph (McCarthy et al. 1993PASP..105..881M 1993PASP..105..881M), and a Reticon CCD.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 78 3 Basic Properties of the Program Stars
table2.dat 52 152 Radial Velocities of HD 96511
table4.dat 52 188 Radial Velocities of HR 7578
table6.dat 52 105 Radial Velocities of KZ And
table8.dat 38 564 Photometric Observations of HR 7578
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See also:
I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)
J/AJ/146/129 : Orbits of 4 double-lined spectroscopic binaries (Fekel+, 2013)
J/AJ/149/63 : Radial velocities of HD 54371, HR 2692, and 16 UMa
(Fekel+, 2015)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Name Star name
11- 14 I4 --- HR [7578]? HR star number
16- 21 I6 --- HD [96511/218738] HD star number
23- 26 A4 --- SpType MK spectral type
28- 31 F4.2 mag Vmag [6.18/7.91] Johnson V band magnitude
33- 37 F5.3 mag B-V [0.7/1.02] Johnson B-V color index
39- 43 F5.3 mag e_B-V [0.007/2.31] Uncertainty in B-V
45- 49 F5.2 mas Plx [21.88/71.18] Parallax
51- 59 F9.7 mas e_Plx [0.0000005/0.40] Uncertainty in Plx
61- 70 F10.7 d Per [3.03291/46.8161] Period
72- 78 F7.5 d e_Per [0.00002]? Uncertainty in Per
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Byte-by-byte Description of file: table2.dat table4.dat table6.dat
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Bytes Format Units Label Explanations
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1- 9 F9.3 d HJD [52965.582/57886.917] Heliocentric Julian Date
(HJD-2400000)
11- 15 F5.3 --- Phase [0/0.999] Fractional phase
17- 21 F5.1 km/s RV1 [-85.5/64.8] Radial velocity of primary
23- 26 F4.1 km/s (O-C)1 [-0.9/0.7] Velocity residual of primary
28- 30 F3.1 --- w_RV1 [0.3/1] Weight of primary velocity
32- 37 F6.1 km/s RV2 [-122.8/65.1] Radial velocity of secondary
39- 42 F4.1 km/s (O-C)2 [-1/1.2] Velocity residual of secondary
44- 47 F4.2 --- w_RV2 [0.15/1] Weight of secondary velocity
49- 52 A4 --- Obs Observatory source (Fair, McD, KPNO) (1)
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Note (1): Observatory source as follows:
Fair = Fairborn Observatory;
McD = McDonald Observatory;
KPNO = Kitt Peak National Observatory.
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 10 F10.4 --- HJD [47276.9765/50642.8007] Heliocentric Julian Date
(HJD-2400000)
12- 17 F6.3 mag VarB [-2.045/-1.927]?=99.999 Variable - Comparison
differential magnitude in B (1)
19- 24 F6.3 mag VarV [-1.777/-1.678]?=99.999 Variable - Comparison
differential magnitude in V (1)
26- 31 F6.3 mag ChkB [-3.812/-3.747]?=99.999 Check - Comparison
differential magnitude in B (1)
33- 38 F6.3 mag ChkV [-3.297/-3.218]?=99.999 Check - Comparison
differential magnitude in V (1)
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Note (1): The '99.999' signifies that the differential magnitude was discarded
because its internal standard deviation exceeded 0.01 mag.
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History:
From electronic version of the journal
References:
Tomkin et al. Paper I. 2006AJ....131.2652T 2006AJ....131.2652T
Tomkin et al. Paper II. 2008AJ....135..555T 2008AJ....135..555T
Fekel et al. Paper III. 2009AJ....137.3900F 2009AJ....137.3900F
Fekel et al. Paper IV. 2010AJ....139.1579F 2010AJ....139.1579F
Fekel et al. Paper V. 2010AJ....140.1381F 2010AJ....140.1381F
Fekel et al. Paper VI. 2011AJ....141..145F 2011AJ....141..145F
Fekel et al. Paper VII. 2011AJ....142...69F 2011AJ....142...69F
Fekel et al. Paper VIII. 2013AJ....146..129F 2013AJ....146..129F, Cat. J/AJ/146/129
Fekel et al. Paper IX. 2015AJ....149...63F 2015AJ....149...63F, Cat. J/AJ/149/63
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 08-Jun-2018