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Spitzer microlensing parallax reveals two isolated stars in the Galactic bulge
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dc.contributor.author | Zang, Weicheng | |
dc.contributor.author | Shvartzvald, Yossi | |
dc.contributor.author | Wang, Tianshu | |
dc.contributor.author | Udalski, Andrzej | |
dc.contributor.author | Lee, Chung-Uk | |
dc.contributor.author | Sumi, Takahiro | |
dc.contributor.author | Skottfelt, Jesper | |
dc.contributor.author | Li, Shun-Sheng | |
dc.contributor.author | Mao, Shude | |
dc.contributor.author | Zhu, Wei | |
dc.contributor.author | Yee, Jennifer C. | |
dc.contributor.author | Calchi Novati, Sebastiano | |
dc.contributor.author | Beichman, Charles A. | |
dc.contributor.author | Bryden, Geoffery | |
dc.contributor.author | Carey, Sean | |
dc.contributor.author | Gaudi, B. Scott | |
dc.contributor.author | Henderson, Calen B. | |
dc.contributor.author | Mróz, Przemek | |
dc.contributor.author | Skowron, Jan | |
dc.contributor.author | Poleski, Radoslaw | |
dc.contributor.author | Szymański, Michał K. | |
dc.contributor.author | Soszyński, Igor | |
dc.contributor.author | Pietrukowicz, Paweł | |
dc.contributor.author | Kozłowski, Szymon | |
dc.contributor.author | Ulaczyk, Krzysztof | |
dc.contributor.author | Rybicki, Krzysztof A. | |
dc.contributor.author | Iwanek, Patryk | |
dc.contributor.author | Bachelet, Etienne | |
dc.contributor.author | Christie, Grant | |
dc.contributor.author | Green, Jonathan | |
dc.contributor.author | Hennerley, Steve | |
dc.contributor.author | Maoz, Dan | |
dc.contributor.author | Natusch, Tim | |
dc.contributor.author | Pogge, Richard W. | |
dc.contributor.author | Street, Rachel A. | |
dc.contributor.author | Tsapras, Yiannis | |
dc.contributor.author | Albrow, Michael D. | |
dc.contributor.author | Chung, Sun-Ju | |
dc.contributor.author | Gould, Andrew | |
dc.contributor.author | Han, Cheongho | |
dc.contributor.author | Hwang, Kyu-Ha | |
dc.contributor.author | Jung, Youn Kil | |
dc.contributor.author | Ryu, Yoon-Hyun | |
dc.contributor.author | Shin, In-Gu | |
dc.contributor.author | Cha, Sang-Mok | |
dc.contributor.author | Kim, Dong-Jin | |
dc.contributor.author | Kim, Hyoun-Woo | |
dc.contributor.author | Kim, Seung-Lee | |
dc.contributor.author | Lee, Dong-Joo | |
dc.contributor.author | Lee, Yongseok | |
dc.contributor.author | Park, Byeong-Gon | |
dc.contributor.author | Pogge, Richard W. | |
dc.contributor.author | Bond, Ian A. | |
dc.contributor.author | Abe, Fumio | |
dc.contributor.author | Barry, Richard | |
dc.contributor.author | Bennett, David P. | |
dc.contributor.author | Bhattacharya, Aparna | |
dc.contributor.author | Donachie, Martin | |
dc.contributor.author | Fukui, Akihiko | |
dc.contributor.author | Hirao, Yuki | |
dc.contributor.author | Itow, Yoshitaka | |
dc.contributor.author | Kondo, Iona | |
dc.contributor.author | Koshimoto, Naoki | |
dc.contributor.author | Li, Man Cheung Alex | |
dc.contributor.author | Matsubara, Yutaka | |
dc.contributor.author | Muraki, Yasushi | |
dc.contributor.author | Miyazaki, Shota | |
dc.contributor.author | Nagakane, Masayuki | |
dc.contributor.author | Ranc, Clément | |
dc.contributor.author | Rattenbury, Nicholas J. | |
dc.contributor.author | Suematsu, Haruno | |
dc.contributor.author | Sullivan, Denis J. | |
dc.contributor.author | Suzuki, Daisuke | |
dc.contributor.author | Tristram, Paul J. | |
dc.contributor.author | Yonehara, Atsunori | |
dc.contributor.author | Dominik, Martin | |
dc.contributor.author | Hundertmark, Markus | |
dc.contributor.author | Jørgensen, Uffe G. | |
dc.contributor.author | Rahvar, Sohrab | |
dc.contributor.author | Sajadian, Sedighe | |
dc.contributor.author | Snodgrass, Colin | |
dc.contributor.author | Bozza, Valerio | |
dc.contributor.author | Burgdorf, Martin J. | |
dc.contributor.author | Evans, Daniel F. | |
dc.contributor.author | Figuera Jaimes, Roberto | |
dc.contributor.author | Fujii, Yuri I. | |
dc.contributor.author | Mancini, Luigi | |
dc.contributor.author | Longa-Peña, Penelope | |
dc.contributor.author | Helling, Christiane | |
dc.contributor.author | Peixinho, Nuno | |
dc.contributor.author | Rabus, Markus | |
dc.contributor.author | Southworth, John | |
dc.contributor.author | Unda-Sanzana, Eduardo | |
dc.contributor.author | von Essen, Carolina | |
dc.date.accessioned | 2020-03-10T15:30:01Z | |
dc.date.available | 2020-03-10T15:30:01Z | |
dc.date.issued | 2020-03-01 | |
dc.identifier | 259336674 | |
dc.identifier | 927e61e6-19a7-400d-bf4c-68e4f5ade131 | |
dc.identifier | 85084645720 | |
dc.identifier | 000537772900003 | |
dc.identifier.citation | Zang , W , Shvartzvald , Y , Wang , T , Udalski , A , Lee , C-U , Sumi , T , Skottfelt , J , Li , S-S , Mao , S , Zhu , W , Yee , J C , Calchi Novati , S , Beichman , C A , Bryden , G , Carey , S , Gaudi , B S , Henderson , C B , Mróz , P , Skowron , J , Poleski , R , Szymański , M K , Soszyński , I , Pietrukowicz , P , Kozłowski , S , Ulaczyk , K , Rybicki , K A , Iwanek , P , Bachelet , E , Christie , G , Green , J , Hennerley , S , Maoz , D , Natusch , T , Pogge , R W , Street , R A , Tsapras , Y , Albrow , M D , Chung , S-J , Gould , A , Han , C , Hwang , K-H , Jung , Y K , Ryu , Y-H , Shin , I-G , Cha , S-M , Kim , D-J , Kim , H-W , Kim , S-L , Lee , D-J , Lee , Y , Park , B-G , Pogge , R W , Bond , I A , Abe , F , Barry , R , Bennett , D P , Bhattacharya , A , Donachie , M , Fukui , A , Hirao , Y , Itow , Y , Kondo , I , Koshimoto , N , Li , M C A , Matsubara , Y , Muraki , Y , Miyazaki , S , Nagakane , M , Ranc , C , Rattenbury , N J , Suematsu , H , Sullivan , D J , Suzuki , D , Tristram , P J , Yonehara , A , Dominik , M , Hundertmark , M , Jørgensen , U G , Rahvar , S , Sajadian , S , Snodgrass , C , Bozza , V , Burgdorf , M J , Evans , D F , Figuera Jaimes , R , Fujii , Y I , Mancini , L , Longa-Peña , P , Helling , C , Peixinho , N , Rabus , M , Southworth , J , Unda-Sanzana , E & von Essen , C 2020 , ' Spitzer microlensing parallax reveals two isolated stars in the Galactic bulge ' , Astrophysical Journal , vol. 891 , no. 1 , 3 . https://doi.org/10.3847/1538-4357/ab6ff8 | en |
dc.identifier.issn | 0004-637X | |
dc.identifier.other | BibCode: 2019arXiv190411204Z | |
dc.identifier.other | ORCID: /0000-0002-3202-0343/work/75996774 | |
dc.identifier.uri | https://hdl.handle.net/10023/19630 | |
dc.description.abstract | We report the mass and distance measurements of two single-lens events from the 2017 Spitzer microlensing campaign. The ground-based observations yield the detection of finite-source effects, and the microlens parallaxes are derived from the joint analysis of ground-based observations and Spitzer observations. We find that the lens of OGLE-2017-BLG-1254 is a 0.60 ± 0.03 M ⊙ star with D LS = 0.53 ± 0.11 kpc, where D LS is the distance between the lens and the source. The second event, OGLE-2017-BLG-1161, is subject to the known satellite parallax degeneracy, and thus is either a 0.51-0.10+0.12 M⊙ star with D LS = 0.40 ± 0.12 kpc or a 0.38-0.12+0.13 M⊙ star with D LS = 0.53 ± 0.19 kpc. Both of the lenses are therefore isolated stars in the Galactic bulge. By comparing the mass and distance distributions of the eight published Spitzer finite-source events with the expectations from a Galactic model, we find that the Spitzer sample is in agreement with the probability of finite-source effects occurring in single-lens events. | |
dc.format.extent | 11 | |
dc.format.extent | 2286067 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astrophysical Journal | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | DAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | Spitzer microlensing parallax reveals two isolated stars in the Galactic bulge | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. St Andrews Centre for Exoplanet Science | en |
dc.identifier.doi | 10.3847/1538-4357/ab6ff8 | |
dc.description.status | Peer reviewed | en |
dc.identifier.url | http://adsabs.harvard.edu/abs/2019arXiv190411204Z | en |
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