eprintid: 10191906 rev_number: 7 eprint_status: archive userid: 699 dir: disk0/10/19/19/06 datestamp: 2024-05-08 11:42:27 lastmod: 2024-05-08 11:42:27 status_changed: 2024-05-08 11:42:27 type: article metadata_visibility: show sword_depositor: 699 creators_name: O’Brien, SM creators_name: Schwamb, ME creators_name: Gill, S creators_name: Watson, CA creators_name: Burleigh, MR creators_name: Kendall, A creators_name: Casewell, SL creators_name: Anderson, DR creators_name: Vines, JI creators_name: Jenkins, JS creators_name: Alves, DR creators_name: Trouille, L creators_name: Ulmer-Moll, S creators_name: Bryant, EM creators_name: Apergis, I creators_name: Battley, M creators_name: Bayliss, D creators_name: Eisner, NL creators_name: Gillen, E creators_name: Goad, MR creators_name: Günther, MN creators_name: Henderson, BA creators_name: Heo, JE creators_name: Jackson, DG creators_name: Lintott, C creators_name: McCormac, J creators_name: Moyano, M creators_name: Nielsen, LD creators_name: Osborn, A creators_name: Saha, S creators_name: Sefako, RR creators_name: Stephens, AW creators_name: Tilbrook, RH creators_name: Udry, S creators_name: West, RG creators_name: Wheatley, PJ creators_name: Zivave, T creators_name: Lim, SM creators_name: Sainio, A title: Planet Hunters NGTS: New Planet Candidates from a Citizen Science Search of the Next Generation Transit Survey Public Data ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F63 note: Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence, https://creativecommons.org/licenses/by/4.0/. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. abstract: We present the results from the first two years of the Planet Hunters Next Generation Transit Survey (NGTS) citizen science project, which searches for transiting planet candidates in data from the NGTS by enlisting the help of members of the general public. Over 8000 registered volunteers reviewed 138,198 light curves from the NGTS Public Data Releases 1 and 2. We utilize a user weighting scheme to combine the classifications of multiple users to identify the most promising planet candidates not initially discovered by the NGTS team. We highlight the five most interesting planet candidates detected through this search, which are all candidate short-period giant planets. This includes the TIC-165227846 system that, if confirmed, would be the lowest-mass star to host a close-in giant planet. We assess the detection efficiency of the project by determining the number of confirmed planets from the NASA Exoplanet Archive and TESS Objects of Interest (TOIs) successfully recovered by this search and find that 74% of confirmed planets and 63% of TOIs detected by NGTS are recovered by the Planet Hunters NGTS project. The identification of new planet candidates shows that the citizen science approach can provide a complementary method to the detection of exoplanets with ground-based surveys such as NGTS. date: 2024-05-01 date_type: published publisher: American Astronomical Society official_url: http://dx.doi.org/10.3847/1538-3881/ad32c8 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2273395 doi: 10.3847/1538-3881/ad32c8 lyricists_name: Bryant, Edward lyricists_id: EBRYA96 actors_name: Flynn, Bernadette actors_id: BFFLY94 actors_role: owner full_text_status: public publication: The Astronomical Journal volume: 167 number: 5 article_number: 238 issn: 0004-6256 citation: O’Brien, SM; Schwamb, ME; Gill, S; Watson, CA; Burleigh, MR; Kendall, A; Casewell, SL; ... Sainio, A; + view all <#> O’Brien, SM; Schwamb, ME; Gill, S; Watson, CA; Burleigh, MR; Kendall, A; Casewell, SL; Anderson, DR; Vines, JI; Jenkins, JS; Alves, DR; Trouille, L; Ulmer-Moll, S; Bryant, EM; Apergis, I; Battley, M; Bayliss, D; Eisner, NL; Gillen, E; Goad, MR; Günther, MN; Henderson, BA; Heo, JE; Jackson, DG; Lintott, C; McCormac, J; Moyano, M; Nielsen, LD; Osborn, A; Saha, S; Sefako, RR; Stephens, AW; Tilbrook, RH; Udry, S; West, RG; Wheatley, PJ; Zivave, T; Lim, SM; Sainio, A; - view fewer <#> (2024) Planet Hunters NGTS: New Planet Candidates from a Citizen Science Search of the Next Generation Transit Survey Public Data. The Astronomical Journal , 167 (5) , Article 238. 10.3847/1538-3881/ad32c8 <https://doi.org/10.3847/1538-3881%2Fad32c8>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10191906/1/Planet%20Hunters%20NGTS%20New%20Planet%20Candidates.pdf