Planet Hunters NGTS: New Planet Candidates from a Citizen Science Search of the Next Generation Transit Survey Public Data

被引：2

作者：

O'Brien, Sean M. ^{[1
]}

Schwamb, Megan E. ^{[1
]}

Gill, Samuel ^{[2
,3
]}

Watson, Christopher A. ^{[1
]}

Burleigh, Matthew R. ^{[4
]}

Kendall, Alicia ^{[4
]}

Casewell, Sarah L. ^{[4
]}

Anderson, David R. ^{[5
]}

Vines, Jose I. ^{[5
]}

Jenkins, James S. ^{[6
,7
]}

Alves, Douglas R. ^{[8
]}

Trouille, Laura ^{[9
]}

Ulmer-Moll, Solene ^{[10
,11
]}

Bryant, Edward M. ^{[12
]}

Apergis, Ioannis ^{[2
,3
]}

Battley, Matthew ^{[10
]}

Bayliss, Daniel ^{[2
,3
]}

Eisner, Nora L. ^{[13
]}

Gillen, Edward ^{[14
]}

Goad, Michael R. ^{[4
]}

Gunther, Maximilian N. ^{[15
]}

Henderson, Beth A. ^{[4
]}

Heo, Jeong-Eun ^{[16
]}

Jackson, David G. ^{[1
]}

Lintott, Chris ^{[17
]}

McCormac, James ^{[2
,3
]}

Moyano, Maximiliano ^{[5
]}

Nielsen, Louise D. ^{[18
]}

Osborn, Ares ^{[2
,3
]}

Saha, Suman ^{[6
,7
]}

Sefako, Ramotholo R. ^{[19
]}

Stephens, Andrew W. ^{[20
]}

Tilbrook, Rosanna H. ^{[4
]}

Udry, Stephane ^{[10
]}

West, Richard G. ^{[2
,3
]}

Wheatley, Peter J. ^{[2
,3
]}

Zivave, Tafadzwa ^{[2
,3
]}

Lim, See Min

Sainio, Arttu

机构：

[1] Queens Univ Belfast, Astrophys Res Ctr, Sch Math & Phys, Belfast BT7 1NN, North Ireland

[2] Univ Warwick, Dept Phys, Gibbet Hill Rd, Coventry CV4 7AL, England

[3] Univ Warwick, Ctr Exoplanets & Habitabil, Gibbet Hill Rd, Coventry CV4 7AL, England

[4] Univ Leicester, Sch Phys & Astron, Univ Rd, Leicester LE1 7RH, England

[5] Univ Catolica Norte, Inst Astron, Angamos 0610, Antofagasta 1270709, Chile

[6] Univ Diego Portales, Fac Ingn & Ciencias, Inst Estudios Astrofis, Ave Ejercito Libertador 441, Santiago, Chile

[7] Ctr Excelencia Astrofis & Tecnol Afines CATA, Camino Observ 1515, Santiago, Chile

[8] Univ Chile, Dept Astron, Casilla 36-D, Santiago, Chile

[9] Sci Engagement Div, Adler Planetarium, Chicago, IL 60605 USA

[10] Observ Astron Univ Geneve, Chemin Pegasi 51, CH-1290 Versoix, Switzerland

[11] Univ Bern, Phys Inst, Space Res & Planetary Sci, Gesellschaftsstr 6, CH-3012 Bern, Switzerland

[12] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, England

[13] Flatiron Inst, Ctr Computat Astrophys, New York, NY 10010 USA

[14] Queen Mary Univ London, Astron Unit, Mile End Rd, London E1 4NS, England

[15] European Space Res & Technol Ctr ESTEC, European Space Agcy ESA, Keplerlaan 1, NL-2201 AZ Noordwijk, Netherlands

[16] Gemini Observ NSFs NOIRLab, Casilla 603, La Serena, Chile

[17] Univ Oxford, Dept Phys, Keble Rd, Oxford OX1 3RH, England

[18] European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany

[19] South African Astron Observ, POB 9, ZA-7935 Cape Town, South Africa

[20] Gemini Observ NSFs NOIRLab, Hilo, HI USA

来源：

ASTRONOMICAL JOURNAL | 2024年 / 167卷 / 05期

基金：

英国科学技术设施理事会;

关键词：

PERIOD HOT-JUPITER; GALAXY ZOO; VALIDATED PLANETS; FALSE POSITIVES; TESS OBJECTS; DATA RELEASE; STELLAR; KEPLER; EXOPLANET; K2;

D O I：

10.3847/1538-3881/ad32c8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

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