J/A+A/537/A147 Optimizing exoplanet transit searches (Herrero+, 2012)
Optimizing exoplanet transit searches around low-mass stars with inclination
constraints.
Herrero E., Ribas I., Jordi C., Guinan E.F., Scott S.G.
<Astron. Astrophys. 537, A147 (2012)>
=2012A&A...537A.147H 2012A&A...537A.147H
ADC_Keywords: Stars, double and multiple ; Planets ; Rotational velocities ;
Spectroscopy
Keywords: stars: activity - planets and satellites: detection - stars: rotation
Abstract:
We investigate a method to increase the efficiency of a targeted
exoplanet search with the transit technique by preselecting a subset
of candidates from large catalogs of stars. Assuming spin-orbit
alignment, this can be achieved by considering stars that have a
higher probability to be oriented nearly equator-on (inclination close
to 90°).
Description:
The table is a compilation of several catalogs of stars containing
log(R'HK), vsin(i) and (B-V) data. The statistical analysis described
in the paper was performed to obtain the probability for each star to
have an axis inclination above 80°, given by the parameters
epsilon and P. The number of stars contained in the statistics box,
described by the uncertainties in the defined parameters, is also
indicated. The resulting probabilities can be used to constrain the
sample and compile a catalog for high efficiency transit searches.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 104 1198 Catalog compilation with analysis results
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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- 16 A16 --- Name Star name
18- 24 F7.3 km/s vsini Projected rotation velocity, vsin(i)
26- 32 F7.3 km/s e_vsini Error in projected rotation velocity
36- 40 F5.3 --- B-V B-V color index
44- 48 F5.3 --- e_B-V Error in B-V color index
51- 56 F6.3 [-] log(R'HK) Activity index, log(R'HK)
60- 64 F5.3 [-] e_log(R'HK) Error in activity index log(R'HK)
68- 71 F4.2 --- eps ε parameter (1)
74- 79 I6 --- Nstar Number of stars in the statistics box
82- 85 F4.2 --- Prob P parameter (2)
91-104 A14 --- Ref References (3)
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Note (1): Calculated probability for the star to have i>80°.
Note (2): Normalized probability (P=1 or ε=0.17 for a non-preselected
sample)
Note (3): References as follows:
Dc91 = Duncan et al. 1991, Cat. III/159
Gb03 = Glebocki & Gnacinski 2003, Cat. III/244
Gy06 = Gray et al. 2006, Cat. J/AJ/132/161
Hr96 = Henry et al. 1996, Cat. J/AJ/111/439
Jk11 = Jenkins et al. 2011, Cat. J/A+A/531/A8
Kh09 = Kharchenko & Roeser 2009, Cat. I/280
Lp10 = Lopez-Santiago et al. 2010, Cat. J/A+A/514/A97
Wr04 = Wright et al. 2004, Cat. J/ApJS/152/261
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Acknowledgements:
Enrique Herrero, eherrero(at)ice.cat
(End) Enrique Herrero [ICE (CSIC-IEEC)], Patricia Vannier [CDS] 10-Nov-2011