Planet Hunters TESS II: findings from the first two years of TESS
Article
Eisner, N. L., Barragan, O., Lintott, C., Aigrain, S., Nicholson, B., Boyajian, T. S., Howells, S., Johnston, C., Lakeland, B., Miller, G., McMaster, A., Parviainen, H., Safron, E. J., Schwamb, M. E., Trouille, L., Vaughan, S., Zicher, N., Allen, C., Allen, S., ..., Hoffman, T.. 2021. "Planet Hunters TESS II: findings from the first two years of TESS." Monthly Notices of the Royal Astronomical Society. 501 (4), pp. 4669-4690. https://doi.org/10.1093/mnras/staa3739
| Article Title | Planet Hunters TESS II: findings from the first two years of TESS |
|---|---|
| ERA Journal ID | 1074 |
| Article Category | Article |
| Authors | Eisner, N. L., Barragan, O., Lintott, C., Aigrain, S., Nicholson, B., Boyajian, T. S., Howells, S., Johnston, C., Lakeland, B., Miller, G., McMaster, A., Parviainen, H., Safron, E. J., Schwamb, M. E., Trouille, L., Vaughan, S., Zicher, N., Allen, C., Allen, S., Bouslog, M., Johnson, C., Simon, M. N., Wolfenbarger, Z., Baeten, E. M. L., Bundy, D. M. and Hoffman, T. |
| Journal Title | Monthly Notices of the Royal Astronomical Society |
| Journal Citation | 501 (4), pp. 4669-4690 |
| Number of Pages | 22 |
| Year | 2021 |
| Publisher | Oxford University Press |
| Place of Publication | United Kingdom |
| ISSN | 0035-8711 |
| 1365-2966 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/staa3739 |
| Web Address (URL) | https://academic.oup.com/mnras/article/501/4/4669/6027708 |
| 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 22 000 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⊕ and 51 per cent of those with radii between 3 and 4 R⊕. 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. |
| Keywords | methods: data analysis; catalogues; planets and satellites: |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
| Public Notes | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2020 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
| Byline Affiliations | University of Oxford, United Kingdom |
| Centre for Astrophysics | |
| Louisiana State University, United States | |
| NASA Ames Research Center, United States | |
| Institute of Astronomy, Belgium | |
| Radboud University, Netherlands | |
| Institute of Astrophysics of the Canary Islands, Spain | |
| Gemini Observatory, United States | |
| Queen’s University Belfast, United Kingdom | |
| Adler Planetarium, United States |
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