J/AJ/166/28 Validation of 69 exoplanets using ExoMiner V1.2 (Valizadegan+, 2023)
Multiplicity Boost of Transit Signal Classifiers: Validation of 69 New
Exoplanets using the Multiplicity Boost of ExoMiner.
Valizadegan H., Martinho M.J.S., Jenkins J.M., Caldwell D.A.,
Twicken J.D., Bryson S.T.
<Astron. J., 166, 28 (2023)>
=2023AJ....166...28V 2023AJ....166...28V
ADC_Keywords: Exoplanets; Positional data
Keywords: Exoplanet astronomy ; Exoplanet catalogs ; Exoplanets ;
Exoplanet detection methods ; Exoplanet systems ; Convolutional
neural networks ; Neural networks
Abstract:
Most existing exoplanets are discovered using validation techniques
rather than being confirmed by complementary observations. These
techniques generate a score that is typically the probability of the
transit signal being an exoplanet (y(x)=exoplanet) given some
information related to that signal (represented by x). Except for the
validation technique in Rowe et al. (2014), which uses multiplicity
information to generate these probability scores, the existing
validation techniques ignore the multiplicity boost information. In
this work, we introduce a framework with the following premise: given
an existing transit-signal vetter (classifier), improve its
performance using multiplicity information. We apply this framework to
several existing classifiers, which include vespa, Robovetter,
AstroNet, ExoNet, GPC and RFC, and ExoMiner, to support our claim that
this framework is able to improve the performance of a given
classifier. We then use the proposed multiplicity boost framework for
ExoMiner V1.2, which addresses some of the shortcomings of the
original ExoMiner classifier, and validate 69 new exoplanets for
systems with multiple Kepler Objects of Interests from the Kepler
catalog.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table9.dat 117 6181 The original scores of ExoMiner V1.2 and the
boosted scores after the application of
multiplicity boost framework on 6181 known KOIs.
table11.dat 112 1570 The original scores of ExoMiner V1.2 and the
boosted scores after the application of
multiplicity boost framework on 1570 unknown KOIs.
table13.dat 108 69 List of 69 newly validated exoplanets
table14.dat 106 64 List of low-MES KOIs (MES<10.5) with boosted
ExoMiner V1.2 score >0.99, RUWE<1.2, and
positional probability > 0.99.
table15.dat 157 59 List of KOIs with boosted ExoMiner V1.2 score
>0.99 that did not pass positional probability
or RUWE tests
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See also:
J/AJ/142/112 : KIC photometric calibration (Brown+, 2011)
J/PASP/124/1279 : Q3 Kepler's combined photometry (Christiansen+, 2012)
J/ApJ/790/146 : Planets in Keplers multi-transiting system (Fabrycky+, 2014)
J/ApJS/211/2 : Stellar properties of Q1-16 Kepler targets (Huber+, 2014)
J/ApJ/784/45 : Kepler's multiple planet candidates. III. (Rowe+, 2014)
J/ApJS/224/12 : Kepler planetary candidates. VII. 48-month (Coughlin+, 2016)
J/ApJ/822/86 : False + probabilities for Q1-Q17 DR24 KOIs (Morton+, 2016)
J/AJ/152/158 : Final Kepler transiting planet search (Twicken+, 2016)
J/MNRAS/465/2634 : Kepler and K2 best candidates for planets (Armstrong+, 2017)
J/ApJ/866/99 : Revised radii of KIC stars & planets (Berger+, 2018)
J/ApJS/235/38 : Kepler planetary cand. DR25 reliability (Thompson+, 2018)
J/AJ/161/246 : Transit time variations 12 exoplanets (Jontof-Hutter+, 2021)
Byte-by-byte Description of file: table9.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- KIC Kepler Input catalog identifier
10- 10 I1 --- TCE [1/7] Threshold Crossing Event number
12- 20 A9 --- KOI Kepler Object of Interest Name
22- 35 F14.9 d Per [0.34/1072] TCE Period
37- 49 F13.9 Rgeo Rad [0.00/896] Planet radius, Earth units
51- 66 F16.9 --- MES [7.1/120000] TCE multiple event statistic
68- 79 F12.9 --- RUWE [0.69/77.5]? Renormalized unit weight error
81- 91 F11.9 --- Prob [0.001/1] Positional Probability
93- 93 I1 --- Label [0/1] 0=Confirmes False Positive 1=Confirmed Planet
95-105 A11 --- Score1 ExoMiner score
107-117 A11 --- Score2 Boosted ExoMiner Score
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Byte-by-byte Description of file: table11.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- KIC Kepler Input catalog identifier
10- 10 I1 --- TCE [1/7] Threshold Crossing Event number
12- 20 A9 --- KOI Kepler Object of Interest Name
22- 34 F13.9 d Per [0.5/632] TCE Period
36- 48 F13.9 Rgeo Rad [0.08/249] Planet radius, Earth units
50- 63 F14.9 --- MES [7.1/2770] TCE multiple event statistic
65- 76 F12.9 --- RUWE [-1/45.5] Renormalized unit weight error
78- 88 F11.9 --- Prob [0.001/1] Positional Probability
90-100 A11 --- Score1 ExoMiner score
102-112 F11.9 --- Score2 [0.0007/1] Boosted ExoMiner Score
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Byte-by-byte Description of file: table13.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
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1- 8 I8 --- KIC Kepler Input catalog identifier
10- 10 I1 --- TCE [1/4] Threshold Crossing Event number
12- 20 A9 --- KOI Kepler Object of Interest Name
22- 34 F13.9 d Per [0.62/454] TCE Period
36- 46 F11.9 Rgeo Rad [0.62/9.42] Planet radius, Earth units
48- 59 F12.8 --- MES [10.52/433] TCE multiple event statistic
61- 72 F12.9 --- RUWE [-1/1.15] Renormalized unit weight error
74- 84 F11.9 --- Prob [0.99/1] Positional Probability
86- 96 F11.9 --- Score1 [0.61/1] ExoMiner score
97-108 F12.9 --- Score2 [0.99/1] Boosted ExoMiner Score
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Byte-by-byte Description of file: table14.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- KIC Kepler Input catalog identifier
10- 10 I1 --- TCE [1/6] Threshold Crossing Event number
12- 20 A9 --- KOI Kepler Object of Interest Name
22- 33 F12.9 d Per [1.74/93.9] TCE Period
35- 45 F11.9 Rgeo Rad [0.6/3.43] Planet radius, Earth units
47- 57 F11.9 --- MES [7.23/9.86] TCE multiple event statistic
59- 69 F11.9 --- Prob [0.99/1] Positional Probability
71- 82 F12.9 --- RUWE [-1/1.15] Renormalized unit weight error
84- 94 F11.9 --- Score1 [0.55/1] ExoMiner score
96-106 F11.9 --- Score2 [0.99/1] Boosted ExoMiner Score
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Byte-by-byte Description of file: table15.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- KIC Kepler Input catalog identifier
10- 10 I1 --- TCE [1/5] Threshold Crossing Event number
12- 20 A9 --- KOI Kepler Object of Interest Name
22- 41 F20.16 d Per [0.7/153] TCE Period
43- 61 F19.16 Rgeo Rad [0.52/13.4] Planet radius, Earth units
63- 80 F18.15 --- MES [7.39/82.6] TCE multiple event statistic
82- 99 F18.16 --- Prob [0.09/1] Positional Probability
101-119 F19.16 --- RUWE [-1/45.5] Renormalized unit weight error
121-138 F18.16 --- Score1 [0.35/1] ExoMiner score
140-157 F18.16 --- Score2 [0.99/1] Boosted ExoMiner Score
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 05-Feb-2024