Vetting of 384 TESS Objects of Interest with TRICERATOPS and Statistical Validation of 12 Planet Candidates

Steven Giacalone; Courtney D. Dressing; Eric L.N. Jensen; Karen A. Collins; George R. Ricker; Roland Vanderspek; S. Seager; Joshua N. Winn; Jon M. Jenkins; Thomas Barclay; Khalid Barkaoui; Charles Cadieux; David Charbonneau; Kevin I. Collins; Dennis M. Conti; René Doyon; Phil Evans; Mourad Ghachoui; Michaël Gillon; Natalia M. Guerrero; Rhodes Hart; Emmanuël Jehin; John F. Kielkopf; Brian McLean; Felipe Murgas; Enric Palle; Hannu Parviainen; Francisco J. Pozuelos; Howard M. Relles; Avi Shporer; Quentin Socia; Chris Stockdale; Thiam Guan Tan; Guillermo Torres; Joseph D. Twicken; William C. Waalkes; Ian A. Waite

doi:10.3847/1538-3881/abc6af

Vetting of 384 TESS Objects of Interest with TRICERATOPS and Statistical Validation of 12 Planet Candidates

Steven Giacalone, Courtney D. Dressing, Eric L.N. Jensen, Karen A. Collins, George R. Ricker, Roland Vanderspek, S. Seager, Joshua N. Winn, Jon M. Jenkins, Thomas Barclay, Khalid Barkaoui, Charles Cadieux, David Charbonneau, Kevin I. Collins, Dennis M. Conti, René Doyon, Phil Evans, Mourad Ghachoui, Michaël Gillon, Natalia M. GuerreroRhodes Hart, Emmanuël Jehin, John F. Kielkopf, Brian McLean, Felipe Murgas, Enric Palle, Hannu Parviainen, Francisco J. Pozuelos, Howard M. Relles, Avi Shporer, Quentin Socia, Chris Stockdale, Thiam Guan Tan, Guillermo Torres, Joseph D. Twicken, William C. Waalkes, Ian A. Waite

Astrophysical Sciences

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47 Scopus citations

Abstract

We present TRICERATOPS, a new Bayesian tool that can be used to vet and validate TESS Objects of Interest (TOIs). We test the tool on 68 TOIs that have been previously confirmed as planets or rejected as astrophysical false positives. By looking in the false-positive probability (FPP)-nearby false-positive probability (NFPP) plane, we define criteria that TOIs must meet to be classified as validated planets (FPP < 0.015 and NFPP < 10-3), likely planets (FPP < 0.5 and NFPP < 10-3), and likely nearby false positives (NFPP > 10-1). We apply this procedure on 384 unclassified TOIs and statistically validate 12, classify 125 as likely planets, and classify 52 as likely nearby false positives. Of the 12 statistically validated planets, 9 are newly validated. TRICERATOPS is currently the only TESS vetting and validation tool that models transits from nearby contaminant stars in addition to the target star. We therefore encourage use of this tool to prioritize follow-up observations that confirm bona fide planets and identify false positives originating from nearby stars.

Original language	English (US)
Article number	24
Journal	Astronomical Journal
Volume	161
Issue number	1
DOIs	https://doi.org/10.3847/1538-3881/abc6af
State	Published - Jan 2021

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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Giacalone, S., Dressing, C. D., Jensen, E. L. N., Collins, K. A., Ricker, G. R., Vanderspek, R., Seager, S., Winn, J. N., Jenkins, J. M., Barclay, T., Barkaoui, K., Cadieux, C., Charbonneau, D., Collins, K. I., Conti, D. M., Doyon, R., Evans, P., Ghachoui, M., Gillon, M., ... Waite, I. A. (2021). Vetting of 384 TESS Objects of Interest with TRICERATOPS and Statistical Validation of 12 Planet Candidates. Astronomical Journal, 161(1), Article 24. https://doi.org/10.3847/1538-3881/abc6af

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title = "Vetting of 384 TESS Objects of Interest with TRICERATOPS and Statistical Validation of 12 Planet Candidates",

abstract = "We present TRICERATOPS, a new Bayesian tool that can be used to vet and validate TESS Objects of Interest (TOIs). We test the tool on 68 TOIs that have been previously confirmed as planets or rejected as astrophysical false positives. By looking in the false-positive probability (FPP)-nearby false-positive probability (NFPP) plane, we define criteria that TOIs must meet to be classified as validated planets (FPP < 0.015 and NFPP < 10-3), likely planets (FPP < 0.5 and NFPP < 10-3), and likely nearby false positives (NFPP > 10-1). We apply this procedure on 384 unclassified TOIs and statistically validate 12, classify 125 as likely planets, and classify 52 as likely nearby false positives. Of the 12 statistically validated planets, 9 are newly validated. TRICERATOPS is currently the only TESS vetting and validation tool that models transits from nearby contaminant stars in addition to the target star. We therefore encourage use of this tool to prioritize follow-up observations that confirm bona fide planets and identify false positives originating from nearby stars.",

author = "Steven Giacalone and Dressing, {Courtney D.} and Jensen, {Eric L.N.} and Collins, {Karen A.} and Ricker, {George R.} and Roland Vanderspek and S. Seager and Winn, {Joshua N.} and Jenkins, {Jon M.} and Thomas Barclay and Khalid Barkaoui and Charles Cadieux and David Charbonneau and Collins, {Kevin I.} and Conti, {Dennis M.} and Ren{\'e} Doyon and Phil Evans and Mourad Ghachoui and Micha{\"e}l Gillon and Guerrero, {Natalia M.} and Rhodes Hart and Emmanu{\"e}l Jehin and Kielkopf, {John F.} and Brian McLean and Felipe Murgas and Enric Palle and Hannu Parviainen and Pozuelos, {Francisco J.} and Relles, {Howard M.} and Avi Shporer and Quentin Socia and Chris Stockdale and Tan, {Thiam Guan} and Guillermo Torres and Twicken, {Joseph D.} and Waalkes, {William C.} and Waite, {Ian A.}",

year = "2021",

month = jan,

doi = "10.3847/1538-3881/abc6af",

language = "English (US)",

volume = "161",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

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Giacalone, S, Dressing, CD, Jensen, ELN, Collins, KA, Ricker, GR, Vanderspek, R, Seager, S, Winn, JN, Jenkins, JM, Barclay, T, Barkaoui, K, Cadieux, C, Charbonneau, D, Collins, KI, Conti, DM, Doyon, R, Evans, P, Ghachoui, M, Gillon, M, Guerrero, NM, Hart, R, Jehin, E, Kielkopf, JF, McLean, B, Murgas, F, Palle, E, Parviainen, H, Pozuelos, FJ, Relles, HM, Shporer, A, Socia, Q, Stockdale, C, Tan, TG, Torres, G, Twicken, JD, Waalkes, WC & Waite, IA 2021, 'Vetting of 384 TESS Objects of Interest with TRICERATOPS and Statistical Validation of 12 Planet Candidates', Astronomical Journal, vol. 161, no. 1, 24. https://doi.org/10.3847/1538-3881/abc6af

TY - JOUR

T1 - Vetting of 384 TESS Objects of Interest with TRICERATOPS and Statistical Validation of 12 Planet Candidates

AU - Giacalone, Steven

AU - Dressing, Courtney D.

AU - Jensen, Eric L.N.

AU - Collins, Karen A.

AU - Ricker, George R.

AU - Vanderspek, Roland

AU - Seager, S.

AU - Winn, Joshua N.

AU - Jenkins, Jon M.

AU - Barclay, Thomas

AU - Barkaoui, Khalid

AU - Cadieux, Charles

AU - Charbonneau, David

AU - Collins, Kevin I.

AU - Conti, Dennis M.

AU - Doyon, René

AU - Evans, Phil

AU - Ghachoui, Mourad

AU - Gillon, Michaël

AU - Guerrero, Natalia M.

AU - Hart, Rhodes

AU - Jehin, Emmanuël

AU - Kielkopf, John F.

AU - McLean, Brian

AU - Murgas, Felipe

AU - Palle, Enric

AU - Parviainen, Hannu

AU - Pozuelos, Francisco J.

AU - Relles, Howard M.

AU - Shporer, Avi

AU - Socia, Quentin

AU - Stockdale, Chris

AU - Tan, Thiam Guan

AU - Torres, Guillermo

AU - Twicken, Joseph D.

AU - Waalkes, William C.

AU - Waite, Ian A.

PY - 2021/1

Y1 - 2021/1

N2 - We present TRICERATOPS, a new Bayesian tool that can be used to vet and validate TESS Objects of Interest (TOIs). We test the tool on 68 TOIs that have been previously confirmed as planets or rejected as astrophysical false positives. By looking in the false-positive probability (FPP)-nearby false-positive probability (NFPP) plane, we define criteria that TOIs must meet to be classified as validated planets (FPP < 0.015 and NFPP < 10-3), likely planets (FPP < 0.5 and NFPP < 10-3), and likely nearby false positives (NFPP > 10-1). We apply this procedure on 384 unclassified TOIs and statistically validate 12, classify 125 as likely planets, and classify 52 as likely nearby false positives. Of the 12 statistically validated planets, 9 are newly validated. TRICERATOPS is currently the only TESS vetting and validation tool that models transits from nearby contaminant stars in addition to the target star. We therefore encourage use of this tool to prioritize follow-up observations that confirm bona fide planets and identify false positives originating from nearby stars.

AB - We present TRICERATOPS, a new Bayesian tool that can be used to vet and validate TESS Objects of Interest (TOIs). We test the tool on 68 TOIs that have been previously confirmed as planets or rejected as astrophysical false positives. By looking in the false-positive probability (FPP)-nearby false-positive probability (NFPP) plane, we define criteria that TOIs must meet to be classified as validated planets (FPP < 0.015 and NFPP < 10-3), likely planets (FPP < 0.5 and NFPP < 10-3), and likely nearby false positives (NFPP > 10-1). We apply this procedure on 384 unclassified TOIs and statistically validate 12, classify 125 as likely planets, and classify 52 as likely nearby false positives. Of the 12 statistically validated planets, 9 are newly validated. TRICERATOPS is currently the only TESS vetting and validation tool that models transits from nearby contaminant stars in addition to the target star. We therefore encourage use of this tool to prioritize follow-up observations that confirm bona fide planets and identify false positives originating from nearby stars.

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U2 - 10.3847/1538-3881/abc6af

DO - 10.3847/1538-3881/abc6af

M3 - Article

AN - SCOPUS:85098482921

SN - 0004-6256

VL - 161

JO - Astronomical Journal

JF - Astronomical Journal

IS - 1

M1 - 24

ER -

Vetting of 384 TESS Objects of Interest with TRICERATOPS and Statistical Validation of 12 Planet Candidates

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