J/AJ/154/184 Multiplicity of RV exoplanet host stars (Wittrock+, 2017)
Exclusion of stellar companions to exoplanet host stars.
Wittrock J.M., Kane S.R., Horch E.P., Howell S.B., Ciardi D.R.,
Everett M.E.
<Astron. J., 154, 184-184 (2017)>
=2017AJ....154..184W 2017AJ....154..184W (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Exoplanets ; Spectral types ;
Proper motions ; Stars, distances ; Stars, masses ; Stars, ages ;
Stars, diameters ; Abundances ; Magnitudes
Keywords: planetary systems - techniques: high angular resolution
Abstract:
Given the frequency of stellar multiplicity in the solar neighborhood,
it is important to study the impacts this can have on exoplanet
properties and orbital dynamics. There have been numerous imaging
survey projects established to detect possible low-mass stellar
companions to exoplanet host stars. Here, we provide the results from
a systematic speckle imaging survey of known exoplanet host stars. In
total, 71 stars were observed at 692 and 880 nm bands using the
Differential Speckle Survey Instrument at the Gemini-north
Observatory. Our results show that all but two of the stars included
in this sample have no evidence of stellar companions with
luminosities down to the detection and projected separation limits of
our instrumentation. The mass-luminosity relationship is used to
estimate the maximum mass a stellar companion can have without being
detected. These results are used to discuss the potential for further
radial velocity follow-up and interpretation of companion signals.
Description:
A large survey project was established to search for stellar companions
to a subset of the known RV exoplanet host stars. In total, 71 stars
were observed in 2014 July using the Differential Speckle Survey
Instrument, or DSSI (Horch et al. 2009AJ....137.5057H 2009AJ....137.5057H); that instrument
was stationed at the Gemini-north Observatory at the time of the
observations. The stars were selected from the known RV exoplanet host
star population where there was no known stellar companion.
The DSSI used two different filters, 692 and 880 nm, to acquire the
speckle images of those targets. The 692 nm filter has FWHM of 40 nm,
and the 880 nm filter has FWHM of 50 nm.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 61 74 Limiting Magnitudes
table1.dat 84 69 Stellar Properties of RV Exoplanet Host Stars
with Null-detections I
table2.dat 110 69 Stellar Properties of RV Exoplanet Host Stars
with Null-detection II
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See also:
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)
J/A+AS/137/451 : Radial velocities. IX. (Grenier+, 1999)
J/AJ/121/2148 : Precise spectral types for 372 A, F + G stars (Gray+, 2001)
J/AJ/126/2048 : NStars project: the Northern Sample. I. (Gray+, 2003)
J/AJ/132/161 : NStars project: The southern sample. I. (Gray+, 2006)
J/ApJ/646/523 : Exoplanet systems with stellar companions (Raghavan+, 2006)
J/MNRAS/378/1141 : Chemical abundances in 31 stars with planet
(Gonzalez+, 2007)
J/AJ/135/209 : Rotational and radial velocities 761 HIP giants
(Massarotti+, 2008)
J/ApJ/680/728 : Diameters of exoplanet host stars (Baines+, 2008)
J/ApJ/694/1085 : Radii of exoplanet host stars (van Belle+, 2009)
J/A+A/523/A15 : HARPS XXIII: RV data for the 8 targets (Naef+, 2010)
J/A+A/535/A55 : 4 stars with long-period planets (Dumusque+, 2011)
J/ApJ/736/87 : Abundances in G-type stars with exoplanets (Kang+, 2011)
J/A+A/545/A55 : Extrasolar planets. Radial velocities of 5 stars
(Boisse+, 2012)
J/MNRAS/421/2498 : Stellar companions of exoplanet host stars (Ginski+, 2012)
J/A+A/549/A109 : HARPS XXXI. The M-dwarf sample (Bonfils+, 2013)
J/A+A/556/A150 : SWEETCat I. Stellar parameters for host stars
(Santos+, 2013)
J/ApJ/766/9 : GALEX observations of exoplanet host stars (Shkolnik, 2013)
J/A+A/562/A71 : Chemical abundances of solar neighbourhood dwarfs
(Bensby+, 2014)
J/A+A/575/A18 : Revising the ages of planet-hosting stars (Bonfanti+, 2015)
J/A+A/576/A94 : Northern bright planet host stars parameters (Sousa+, 2015)
J/A+A/579/A20 : Circumstellar debris discs (Maldonado+, 2015)
J/ApJ/804/64 : Empirical and model parameters of 183 M dwarfs (Mann+, 2015)
J/A+A/585/A5 : Exoplanet hosts/field stars age consistency
(Bonfanti+, 2016)
J/ApJ/830/46 : Radial velocities of 3 Neptune-mass planet hosts
(Fulton+, 2016)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Star Star name
12- 17 F6.2 AU Rin [0.31/263.16] Inner exclusion radius
19- 25 F7.2 AU Rout [8.7/7368.42] Outer exclusion radius
27- 30 F4.2 mag Dm0.1(692) [1.85/4.75] 5σ limiting magnitude
(Δm) at 0.1", at 692 nm
32- 35 F4.2 mag Dm0.2(692) [3.18/5.39] 5σ limiting magnitude
(Δm) at 0.2", at 692 nm
37- 40 F4.2 mag Dm0.1(880) [2.74/4.73] 5σ limiting magnitude
(Δm) at 0.1", at 880 nm
42- 45 F4.2 mag Dm0.2(880) [3.66/5.34] 5σ limiting magnitude
(Δm) at 0.2", at 880 nm
47- 51 F5.2 mag DM [-1.03/13.61] Distance modulus
53- 56 F4.2 Msun M*(692) [0/2.58] Maximum stellar mass of a hypothetical
companion, at 692 nm
58- 61 F4.2 Msun M*(880) [0/2.29] Maximum stellar mass of a hypothetical
companion, at 880 nm
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Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- Star Star name
12- 17 A6 --- SpType MK spectral type
19- 25 F7.4 mag Vmag [4.2992/10.5759] Apparent V band magnitude
27- 34 F8.2 mas/yr pmRA [-1227.67/1130.27] Proper motion along RA
(µαcosδ)
36- 42 F7.2 mas/yr pmDE [-773.02/853.63] Proper motion along DE
(µδ)
44- 49 F6.2 mas Plx [0.19/160.91] Parallax
51- 54 F4.2 mas e_Plx [0/7.8] Uncertainty in Plx
56- 62 F7.2 pc Dist [6.21/5263.16] Distance
64- 71 F8.2 pc e_Dist [0/19944.6] Uncertainty in Dist
73 I1 --- Npl [1/3] Number of exoplanet(s) the star hosts
75- 84 A10 --- Ref Reference(s) (1)
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Note (1): Reference as follows:
1 = Boisse et al. (2012, J/A+A/545/A55);
2 = Bonfils et al. (2005A&A...443L..15B 2005A&A...443L..15B);
3 = Bonfils et al. (2013, J/A+A/549/A109);
4 = Dumusque et al. (2011, J/A+A/535/A55);
5 = Endl et al. (2004ApJ...611.1121E 2004ApJ...611.1121E);
6 = ESA (1997, Cat. I/239);
7 = Fischer et al. (2002PASP..114..529F 2002PASP..114..529F);
8 = Fischer et al. (2003ApJ...586.1394F 2003ApJ...586.1394F);
9 = Fischer et al. (2006ApJ...637.1094F 2006ApJ...637.1094F);
10 = Gettel et al. (2012ApJ...745...10B 2012ApJ...745...10B);
11 = Giguere et al. (2012ApJ...744....4G 2012ApJ...744....4G);
12 = Giguere et al. (2015ApJ...799...89G 2015ApJ...799...89G);
13 = Gray et al. (2001, J/AJ/121/2148);
14 = Gray et al. (2003, J/AJ/126/2048);
15 = Gray et al. (2006, J/AJ/132/161);
16 = Grenier et al. (1999, J/A+AS/137/451);
17 = Hatzes et al. (2005A&A...437..743H 2005A&A...437..743H);
18 = Hog et al. (2000A&A...355L..27H 2000A&A...355L..27H);
19 = Johnson et al. (2007ApJ...665..785J 2007ApJ...665..785J);
20 = Johnson et al. (2008ApJ...675..784J 2008ApJ...675..784J);
21 = Kidger et al. (2003RMxAC..16..287K 2003RMxAC..16..287K);
22 = Lee et al. (2013A&A...549A...2L 2013A&A...549A...2L);
23 = Naef et al. (2010, J/A+A/523/A15);
24 = Niedzielski et al. (2007ApJ...669.1354N 2007ApJ...669.1354N);
25 = Niedzielski et al. (2009ApJ...707..768N 2009ApJ...707..768N);
26 = Robertson et al. (2012ApJ...749...39R 2012ApJ...749...39R);
27 = Santos et al. (2007A&A...474..647S 2007A&A...474..647S);
28 = Santos et al. (2013, J/A+A/556/A150);
29 = Santos et al. (2015A&A...580L..13S 2015A&A...580L..13S);
30 = Sato et al. (2009ApJ...703..671S 2009ApJ...703..671S);
31 = Sato et al. (2010PASJ...62.1063S 2010PASJ...62.1063S);
32 = van Belle & von Braun (2009, J/ApJ/694/1085);
33 = van Leeuwen (2007, Cat. I/311);
34 = Vogt et al. (2000ApJ...536..902V 2000ApJ...536..902V);
35 = von Braun et al. (2014MNRAS.438.2413V 2014MNRAS.438.2413V);
36 = Zacharias (2004AN....325..631Z 2004AN....325..631Z).
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Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- Star Star name
12- 16 F5.3 Msun M* [0.306/2.3] Stellar mass
18- 22 F5.3 Msun e_M* [0.003/0.4] Uncertainty in M*
24- 30 F7.4 Rsun R* [0.299/51.1]? Stellar radius
32- 37 F6.4 Rsun e_R* [0/9.5]? Uncertainty in R*
39- 47 F9.5 Lsun L* [0.01146/621.3]? Stellar luminosity
49- 57 F9.5 Lsun e_L* [0/211.7]? Uncertainty in L*
59- 62 I4 K Teff [3457/6211] Effective temperature
64- 66 I3 K e_Teff [11/242] Uncertainty in Teff
68- 72 F5.3 [cm/s2] logg [1.1/4.96] Surface gravity
74- 78 F5.3 [cm/s2] e_logg [0.01/0.61] Uncertainty in logg
80- 85 F6.3 Gyr Age [0.9/10.2]? Age
87- 91 F5.3 Gyr e_Age [0.1/4.5]? Uncertainty in Age
93- 97 F5.2 [-] [Fe/H] [-0.62/0.5] Metallicity
99-103 F5.3 [-] e_[Fe/H] [0.01/0.25] Uncertainty in [Fe/H]
105-110 A6 --- Ref Reference(s) (1)
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Note (1): Reference as follows:
1 = Bensby et al. (2014, J/A+A/562/A71);
2 = Bonfanti et al. (2015, J/A+A/575/A18);
3 = Bonfanti et al. (2016, J/A+A/585/A5);
4 = Fulton et al. (2016, J/ApJ/830/46);
5 = Gettel et al. (2012ApJ...745...10B 2012ApJ...745...10B);
6 = Giguere et al. (2015ApJ...799...89G 2015ApJ...799...89G);
7 = Gonzalez & Laws (2007, J/MNRAS/378/1141);
8 = Jofre et al. (2015A&A...574A..46P 2015A&A...574A..46P);
9 = Kang et al. (2011, J/ApJ/736/87);
10 = Lee et al. (2013A&A...549A...2L 2013A&A...549A...2L);
11 = Maldonado et al. (2015, J/A+A/579/A20);
12 = Mann et al. (2015, J/ApJ/804/64);
13 = Massarotti et al. (2008, J/AJ/135/209);
14 = McCarthy & Wilhelm (2014AJ....148...70M 2014AJ....148...70M);
15 = Santos et al. (2013, J/A+A/556/A150);
16 = Sousa et al. (2015, J/A+A/576/A94);
17 = Spina et al. (2016A&A...585A.152S 2016A&A...585A.152S).
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(End) Tiphaine Pouvreau [CDS] 20-Jul-2018