Title

Planet Hunters TESS II: findings from the first two years of TESS

Authors

N. L. Eisner, Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, EnglandFollow
O. Barragan, Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, England
C. Lintott, Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, England
S. Aigrain, Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, England
B. Nicholson, Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, England, Univ Southern Queensland, Ctr Astrophys, West St, Toowoomba, Qld 4350, Australia
T. S. Boyajian, Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA
S. Howell, NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
C. Johnston, Radboud Univ Nijmegen, Dept Astrophys, IMAPP, POB 9010, NL-6500 GL Nijmegen, Netherlands; Katholieke Univ Leuven, Inst Astron, Celestijnenlaan 200D, B-3001 Leuven, Belgium
B. Lakeland, Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, England
G. Miller, Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, England
A. McMaster, Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, England
H. Parviainen, Inst Astrofis Canarias IAC, Via Lactea S-N, Tenerife 38205, Spain
E. J. Safron, Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA
M. E. Schwamb, Northern Operat Ctr, Gemini Observ, 670 North Aohoku Pl, Hilo, HI 96720 USA; Queens Univ Belfast, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland
L. Trouille, Adler Planetarium, Dept Citizen Sci, Chicago, IL 60605 USA
S. Vaughan, Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, England
N. Zicher, Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, England
C. Allen, Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, England
S. Allen, Adler Planetarium, Dept Citizen Sci, Chicago, IL 60605 USA
M. Bouslog, Adler Planetarium, Dept Citizen Sci, Chicago, IL 60605 USA
C. Johnson, Adler Planetarium, Dept Citizen Sci, Chicago, IL 60605 USA
M. N. Simon, Adler Planetarium, Dept Citizen Sci, Chicago, IL 60605 USA
Z. Wolfenbarger, Adler Planetarium, Dept Citizen Sci, Chicago, IL 60605 USA
E. M. L. Baeten, Univ Oxford, Keble Rd, Oxford OX1 3RH, England
D. M. Bundy, Univ Oxford, Keble Rd, Oxford OX1 3RH, England
T. Hoffman, Univ Oxford, Keble Rd, Oxford OX1 3RH, England

Document Type

Article

Publication Date

3-2021

Abstract

We present the results from the first two years of the Planet Hunters TESS (PHT) citizen science project, which identifies planet candidates in the TESS (Transiting Exoplanet Survey Satellite) data by engaging members of the general public. Over 22000 citizen scientists from around the world visually inspected the first 26 sectors of TESS data in order to help identify transit-like signals. We use a clustering algorithm to combine these classifications into a ranked list of events for each sector, the top 500 of which are then visually vetted by the science team. We assess the detection efficiency of this methodology by comparing our results to the list of TESS Objects of Interest (TOIs) and show that we recover 85 per cent of the TOIs with radii greater than 4 R-circle plus and 51 per cent of those with radii between 3 and 4 R-circle plus. Additionally, we present our 90 most promising planet candidates that had not previously been identified by other teams, 73 of which exhibit only a single-transit event in the TESS light curve, and outline our efforts to follow these candidates up using ground-based observatories. Finally, we present noteworthy stellar systems that were identified through the Planet Hunters TESS project.

Publication Source (Journal or Book title)

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

First Page

4669

Last Page

4690

This document is currently not available here.

Share

COinS