Systematic KMTNet Planetary Anomaly Search. I. OGLE-2019-BLG-1053Lb, a BuriedTerrestrial Planet
In order to exhume the buried signatures of “missing planetary caustics” in Korea Microlensing Telescope Network (KMTNet) data, we conducted a systematic anomaly search of the residuals from point-source point-lens fits, based on a modified version of the KMTNet Event Finder algorithm. This search r...
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| Veröffentlicht in: | The Astronomical journal 2021-09, Vol.162 (4) |
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| creator | Zang, Weicheng Hwang, Kyu-Ha Udalski, Andrzej Wang, Tianshu Zhu, Wei Sumi, Takahiro Yee, Jennifer C. Gould, Andrew Mao, Shude Zhang, Xiangyu Albrow, Michael D. Chung, Sun-Ju Han, Cheongho Jung, Youn Kil Ryu, Yoon-Hyun Shin, In-Gu Shvartzvald, Yossi Cha, Sang-Mok Kim, Dong-Jin Kim, Hyoun-Woo Kim, Seung-Lee Lee, Chung-Uk Lee, Dong-Joo Lee, Yongseok Park, Byeong-Gon Pogge, Richard W. Mróz, Przemek Skowron, Jan Poleski, Radoslaw Szymański, Michał K. Soszyński, Igor Pietrukowicz, Paweł Kozłowski, Szymon Ulaczyk, Krzysztof Rybicki, Krzysztof A. Iwanek, Patryk Wrona, Marcin Gromadzki, Mariusz Bond, Ian A. Abe, Fumio Barry, Richard Bennett, David P. Bhattacharya, Aparna Donachie, Martin Fujii, Hirosane Fukui, Akihiko Hirao, Yuki Itow, Yoshitaka Kirikawa, Rintaro Kondo, Iona Koshimoto, Naoki Li, Man Cheung Alex Matsubara, Yutaka Muraki, Yasushi Miyazaki, Shota Olmschenk, Greg Ranc, Clément Rattenbury, Nicholas J. Satoh, Yuki Shoji, Hikaru Silva, Stela Ishitani Suzuki, Daisuke Tanaka, Yuzuru Tristram, Paul J. Yamawaki, Tsubasa Yonehara, Atsunori Bryden, Geoffery Gaudi, B. Scott Johnson, Samson |
| description | In order to exhume the buried signatures of “missing planetary caustics” in Korea Microlensing Telescope Network (KMTNet) data, we conducted a systematic anomaly search of the residuals from point-source point-lens fits, based on a modified version of the KMTNet Event Finder algorithm. This search revealed the lowest-mass-ratio planetary caustic to date in the microlensing event OGLE-2019-BLG-1053, for which the planetary signal had not been noticed before. The planetary system has a planet–host mass ratio ofq= (1.25±0.13) × 10−5. A Bayesian analysis yielded estimates of the mass of the host star, Mhost =-0.61+0.29 -0.24 Mo, the mass of its planet, Mplanet =-2.48 +1.19 -0.98 Mo, the projected planet – host separation, a^= 3.4 +0.5/-0.5 au, and the lens distance, DL =-6.8 +0.6 -0.90kpc.The discovery of this very-low-mass-ratio planet illustrates the utility of our method and opens a new window for a large and homogeneous sample to study the microlensing planet–host mass ratio function down to q∼ 10−5. |
| doi_str_mv | 10.3847/1538-3881/ac12d4 |
| format | Article |
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Scott</creatorcontrib><creatorcontrib>Johnson, Samson</creatorcontrib><title>Systematic KMTNet Planetary Anomaly Search. I. OGLE-2019-BLG-1053Lb, a BuriedTerrestrial Planet</title><title>The Astronomical journal</title><description>In order to exhume the buried signatures of “missing planetary caustics” in Korea Microlensing Telescope Network (KMTNet) data, we conducted a systematic anomaly search of the residuals from point-source point-lens fits, based on a modified version of the KMTNet Event Finder algorithm. This search revealed the lowest-mass-ratio planetary caustic to date in the microlensing event OGLE-2019-BLG-1053, for which the planetary signal had not been noticed before. The planetary system has a planet–host mass ratio ofq= (1.25±0.13) × 10−5. A Bayesian analysis yielded estimates of the mass of the host star, Mhost =-0.61+0.29 -0.24 Mo, the mass of its planet, Mplanet =-2.48 +1.19 -0.98 Mo, the projected planet – host separation, a^= 3.4 +0.5/-0.5 au, and the lens distance, DL =-6.8 +0.6 -0.90kpc.The discovery of this very-low-mass-ratio planet illustrates the utility of our method and opens a new window for a large and homogeneous sample to study the microlensing planet–host mass ratio function down to q∼ 10−5.</description><subject>Astronomy</subject><issn>0004-6256</issn><issn>1538-3881</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>CYI</sourceid><recordid>eNqFjjsLwjAUhYMoWB-7g0N-gGlvkrbGUcUX1gfYvVxrxEqtkMSh_14HcXU5B74DH4eQAQdfqnAc8EgqJpXiAeZcXMIG8X6oSTwACFksorhNOtbeAThXEHokO9XW6Qe6IqfbXbrXjh5LrLRDU9Np9XxgWdOTRpPffLrx6WGVLJgAPmGzZMU4RDI5jyjS2csU-pJqY7R1psDyq-mR1hVLq_vf7pLhcpHO16xCi1nljM0ECPG594lY_pnfnzVAZg</recordid><startdate>20210924</startdate><enddate>20210924</enddate><creator>Zang, Weicheng</creator><creator>Hwang, Kyu-Ha</creator><creator>Udalski, Andrzej</creator><creator>Wang, Tianshu</creator><creator>Zhu, Wei</creator><creator>Sumi, Takahiro</creator><creator>Yee, Jennifer C.</creator><creator>Gould, Andrew</creator><creator>Mao, Shude</creator><creator>Zhang, Xiangyu</creator><creator>Albrow, Michael D.</creator><creator>Chung, Sun-Ju</creator><creator>Han, Cheongho</creator><creator>Jung, Youn Kil</creator><creator>Ryu, Yoon-Hyun</creator><creator>Shin, In-Gu</creator><creator>Shvartzvald, Yossi</creator><creator>Cha, Sang-Mok</creator><creator>Kim, Dong-Jin</creator><creator>Kim, Hyoun-Woo</creator><creator>Kim, Seung-Lee</creator><creator>Lee, Chung-Uk</creator><creator>Lee, Dong-Joo</creator><creator>Lee, Yongseok</creator><creator>Park, Byeong-Gon</creator><creator>Pogge, Richard W.</creator><creator>Mróz, Przemek</creator><creator>Skowron, Jan</creator><creator>Poleski, Radoslaw</creator><creator>Szymański, Michał K.</creator><creator>Soszyński, Igor</creator><creator>Pietrukowicz, Paweł</creator><creator>Kozłowski, Szymon</creator><creator>Ulaczyk, Krzysztof</creator><creator>Rybicki, Krzysztof A.</creator><creator>Iwanek, Patryk</creator><creator>Wrona, Marcin</creator><creator>Gromadzki, Mariusz</creator><creator>Bond, Ian A.</creator><creator>Abe, Fumio</creator><creator>Barry, Richard</creator><creator>Bennett, David P.</creator><creator>Bhattacharya, Aparna</creator><creator>Donachie, Martin</creator><creator>Fujii, Hirosane</creator><creator>Fukui, Akihiko</creator><creator>Hirao, Yuki</creator><creator>Itow, Yoshitaka</creator><creator>Kirikawa, Rintaro</creator><creator>Kondo, Iona</creator><creator>Koshimoto, Naoki</creator><creator>Li, Man Cheung Alex</creator><creator>Matsubara, Yutaka</creator><creator>Muraki, Yasushi</creator><creator>Miyazaki, Shota</creator><creator>Olmschenk, Greg</creator><creator>Ranc, Clément</creator><creator>Rattenbury, Nicholas J.</creator><creator>Satoh, Yuki</creator><creator>Shoji, Hikaru</creator><creator>Silva, Stela Ishitani</creator><creator>Suzuki, Daisuke</creator><creator>Tanaka, Yuzuru</creator><creator>Tristram, Paul J.</creator><creator>Yamawaki, Tsubasa</creator><creator>Yonehara, Atsunori</creator><creator>Bryden, Geoffery</creator><creator>Gaudi, B. 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OGLE-2019-BLG-1053Lb, a BuriedTerrestrial Planet</title><author>Zang, Weicheng ; Hwang, Kyu-Ha ; Udalski, Andrzej ; Wang, Tianshu ; Zhu, Wei ; Sumi, Takahiro ; Yee, Jennifer C. ; Gould, Andrew ; Mao, Shude ; Zhang, Xiangyu ; Albrow, Michael D. ; Chung, Sun-Ju ; Han, Cheongho ; Jung, Youn Kil ; Ryu, Yoon-Hyun ; Shin, In-Gu ; Shvartzvald, Yossi ; Cha, Sang-Mok ; Kim, Dong-Jin ; Kim, Hyoun-Woo ; Kim, Seung-Lee ; Lee, Chung-Uk ; Lee, Dong-Joo ; Lee, Yongseok ; Park, Byeong-Gon ; Pogge, Richard W. ; Mróz, Przemek ; Skowron, Jan ; Poleski, Radoslaw ; Szymański, Michał K. ; Soszyński, Igor ; Pietrukowicz, Paweł ; Kozłowski, Szymon ; Ulaczyk, Krzysztof ; Rybicki, Krzysztof A. ; Iwanek, Patryk ; Wrona, Marcin ; Gromadzki, Mariusz ; Bond, Ian A. ; Abe, Fumio ; Barry, Richard ; Bennett, David P. ; Bhattacharya, Aparna ; Donachie, Martin ; Fujii, Hirosane ; Fukui, Akihiko ; Hirao, Yuki ; Itow, Yoshitaka ; Kirikawa, Rintaro ; Kondo, Iona ; Koshimoto, Naoki ; Li, Man Cheung Alex ; Matsubara, Yutaka ; Muraki, Yasushi ; Miyazaki, Shota ; Olmschenk, Greg ; Ranc, Clément ; Rattenbury, Nicholas J. ; Satoh, Yuki ; Shoji, Hikaru ; Silva, Stela Ishitani ; Suzuki, Daisuke ; Tanaka, Yuzuru ; Tristram, Paul J. ; Yamawaki, Tsubasa ; Yonehara, Atsunori ; Bryden, Geoffery ; Gaudi, B. Scott ; Johnson, Samson</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-nasa_ntrs_202200022063</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Astronomy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zang, Weicheng</creatorcontrib><creatorcontrib>Hwang, Kyu-Ha</creatorcontrib><creatorcontrib>Udalski, Andrzej</creatorcontrib><creatorcontrib>Wang, Tianshu</creatorcontrib><creatorcontrib>Zhu, Wei</creatorcontrib><creatorcontrib>Sumi, Takahiro</creatorcontrib><creatorcontrib>Yee, Jennifer C.</creatorcontrib><creatorcontrib>Gould, Andrew</creatorcontrib><creatorcontrib>Mao, Shude</creatorcontrib><creatorcontrib>Zhang, Xiangyu</creatorcontrib><creatorcontrib>Albrow, Michael D.</creatorcontrib><creatorcontrib>Chung, Sun-Ju</creatorcontrib><creatorcontrib>Han, Cheongho</creatorcontrib><creatorcontrib>Jung, Youn Kil</creatorcontrib><creatorcontrib>Ryu, Yoon-Hyun</creatorcontrib><creatorcontrib>Shin, In-Gu</creatorcontrib><creatorcontrib>Shvartzvald, Yossi</creatorcontrib><creatorcontrib>Cha, Sang-Mok</creatorcontrib><creatorcontrib>Kim, Dong-Jin</creatorcontrib><creatorcontrib>Kim, Hyoun-Woo</creatorcontrib><creatorcontrib>Kim, Seung-Lee</creatorcontrib><creatorcontrib>Lee, Chung-Uk</creatorcontrib><creatorcontrib>Lee, Dong-Joo</creatorcontrib><creatorcontrib>Lee, Yongseok</creatorcontrib><creatorcontrib>Park, Byeong-Gon</creatorcontrib><creatorcontrib>Pogge, Richard W.</creatorcontrib><creatorcontrib>Mróz, Przemek</creatorcontrib><creatorcontrib>Skowron, Jan</creatorcontrib><creatorcontrib>Poleski, Radoslaw</creatorcontrib><creatorcontrib>Szymański, Michał K.</creatorcontrib><creatorcontrib>Soszyński, Igor</creatorcontrib><creatorcontrib>Pietrukowicz, Paweł</creatorcontrib><creatorcontrib>Kozłowski, Szymon</creatorcontrib><creatorcontrib>Ulaczyk, Krzysztof</creatorcontrib><creatorcontrib>Rybicki, Krzysztof A.</creatorcontrib><creatorcontrib>Iwanek, Patryk</creatorcontrib><creatorcontrib>Wrona, Marcin</creatorcontrib><creatorcontrib>Gromadzki, Mariusz</creatorcontrib><creatorcontrib>Bond, Ian A.</creatorcontrib><creatorcontrib>Abe, Fumio</creatorcontrib><creatorcontrib>Barry, Richard</creatorcontrib><creatorcontrib>Bennett, David P.</creatorcontrib><creatorcontrib>Bhattacharya, Aparna</creatorcontrib><creatorcontrib>Donachie, Martin</creatorcontrib><creatorcontrib>Fujii, Hirosane</creatorcontrib><creatorcontrib>Fukui, Akihiko</creatorcontrib><creatorcontrib>Hirao, Yuki</creatorcontrib><creatorcontrib>Itow, Yoshitaka</creatorcontrib><creatorcontrib>Kirikawa, Rintaro</creatorcontrib><creatorcontrib>Kondo, Iona</creatorcontrib><creatorcontrib>Koshimoto, Naoki</creatorcontrib><creatorcontrib>Li, Man Cheung Alex</creatorcontrib><creatorcontrib>Matsubara, Yutaka</creatorcontrib><creatorcontrib>Muraki, Yasushi</creatorcontrib><creatorcontrib>Miyazaki, Shota</creatorcontrib><creatorcontrib>Olmschenk, Greg</creatorcontrib><creatorcontrib>Ranc, Clément</creatorcontrib><creatorcontrib>Rattenbury, Nicholas J.</creatorcontrib><creatorcontrib>Satoh, Yuki</creatorcontrib><creatorcontrib>Shoji, Hikaru</creatorcontrib><creatorcontrib>Silva, Stela Ishitani</creatorcontrib><creatorcontrib>Suzuki, Daisuke</creatorcontrib><creatorcontrib>Tanaka, Yuzuru</creatorcontrib><creatorcontrib>Tristram, Paul J.</creatorcontrib><creatorcontrib>Yamawaki, Tsubasa</creatorcontrib><creatorcontrib>Yonehara, Atsunori</creatorcontrib><creatorcontrib>Bryden, Geoffery</creatorcontrib><creatorcontrib>Gaudi, B. Scott</creatorcontrib><creatorcontrib>Johnson, Samson</creatorcontrib><collection>NASA Scientific and Technical Information</collection><collection>NASA Technical Reports Server</collection><jtitle>The Astronomical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zang, Weicheng</au><au>Hwang, Kyu-Ha</au><au>Udalski, Andrzej</au><au>Wang, Tianshu</au><au>Zhu, Wei</au><au>Sumi, Takahiro</au><au>Yee, Jennifer C.</au><au>Gould, Andrew</au><au>Mao, Shude</au><au>Zhang, Xiangyu</au><au>Albrow, Michael D.</au><au>Chung, Sun-Ju</au><au>Han, Cheongho</au><au>Jung, Youn Kil</au><au>Ryu, Yoon-Hyun</au><au>Shin, In-Gu</au><au>Shvartzvald, Yossi</au><au>Cha, Sang-Mok</au><au>Kim, Dong-Jin</au><au>Kim, Hyoun-Woo</au><au>Kim, Seung-Lee</au><au>Lee, Chung-Uk</au><au>Lee, Dong-Joo</au><au>Lee, Yongseok</au><au>Park, Byeong-Gon</au><au>Pogge, Richard W.</au><au>Mróz, Przemek</au><au>Skowron, Jan</au><au>Poleski, Radoslaw</au><au>Szymański, Michał K.</au><au>Soszyński, Igor</au><au>Pietrukowicz, Paweł</au><au>Kozłowski, Szymon</au><au>Ulaczyk, Krzysztof</au><au>Rybicki, Krzysztof A.</au><au>Iwanek, Patryk</au><au>Wrona, Marcin</au><au>Gromadzki, Mariusz</au><au>Bond, Ian A.</au><au>Abe, Fumio</au><au>Barry, Richard</au><au>Bennett, David P.</au><au>Bhattacharya, Aparna</au><au>Donachie, Martin</au><au>Fujii, Hirosane</au><au>Fukui, Akihiko</au><au>Hirao, Yuki</au><au>Itow, Yoshitaka</au><au>Kirikawa, Rintaro</au><au>Kondo, Iona</au><au>Koshimoto, Naoki</au><au>Li, Man Cheung Alex</au><au>Matsubara, Yutaka</au><au>Muraki, Yasushi</au><au>Miyazaki, Shota</au><au>Olmschenk, Greg</au><au>Ranc, Clément</au><au>Rattenbury, Nicholas J.</au><au>Satoh, Yuki</au><au>Shoji, Hikaru</au><au>Silva, Stela Ishitani</au><au>Suzuki, Daisuke</au><au>Tanaka, Yuzuru</au><au>Tristram, Paul J.</au><au>Yamawaki, Tsubasa</au><au>Yonehara, Atsunori</au><au>Bryden, Geoffery</au><au>Gaudi, B. Scott</au><au>Johnson, Samson</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Systematic KMTNet Planetary Anomaly Search. I. OGLE-2019-BLG-1053Lb, a BuriedTerrestrial Planet</atitle><jtitle>The Astronomical journal</jtitle><date>2021-09-24</date><risdate>2021</risdate><volume>162</volume><issue>4</issue><issn>0004-6256</issn><eissn>1538-3881</eissn><abstract>In order to exhume the buried signatures of “missing planetary caustics” in Korea Microlensing Telescope Network (KMTNet) data, we conducted a systematic anomaly search of the residuals from point-source point-lens fits, based on a modified version of the KMTNet Event Finder algorithm. This search revealed the lowest-mass-ratio planetary caustic to date in the microlensing event OGLE-2019-BLG-1053, for which the planetary signal had not been noticed before. The planetary system has a planet–host mass ratio ofq= (1.25±0.13) × 10−5. A Bayesian analysis yielded estimates of the mass of the host star, Mhost =-0.61+0.29 -0.24 Mo, the mass of its planet, Mplanet =-2.48 +1.19 -0.98 Mo, the projected planet – host separation, a^= 3.4 +0.5/-0.5 au, and the lens distance, DL =-6.8 +0.6 -0.90kpc.The discovery of this very-low-mass-ratio planet illustrates the utility of our method and opens a new window for a large and homogeneous sample to study the microlensing planet–host mass ratio function down to q∼ 10−5.</abstract><cop>Goddard Space Flight Center</cop><pub>The American Astronomical Society</pub><doi>10.3847/1538-3881/ac12d4</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-6256 |
| ispartof | The Astronomical journal, 2021-09, Vol.162 (4) |
| issn | 0004-6256 1538-3881 |
| language | eng |
| recordid | cdi_nasa_ntrs_20220002206 |
| source | IOP Publishing Free Content; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; NASA Technical Reports Server; IOPscience extra; Alma/SFX Local Collection |
| subjects | Astronomy |
| title | Systematic KMTNet Planetary Anomaly Search. I. OGLE-2019-BLG-1053Lb, a BuriedTerrestrial Planet |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-22T19%3A05%3A05IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-nasa&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Systematic%20KMTNet%20Planetary%20Anomaly%20Search.%20I.%20OGLE-2019-BLG-1053Lb,%20a%20BuriedTerrestrial%20Planet&rft.jtitle=The%20Astronomical%20journal&rft.au=Zang,%20Weicheng&rft.date=2021-09-24&rft.volume=162&rft.issue=4&rft.issn=0004-6256&rft.eissn=1538-3881&rft_id=info:doi/10.3847/1538-3881/ac12d4&rft_dat=%3Cnasa%3E20220002206%3C/nasa%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |