A super-Jupiter orbiting a late-type star: a refined analysis of microlensing event OGLE-2012-BLG-0406

Tsapras, Y; Choi, J-H; Street, RA; Han, C; Bozza, V; Gould, A; Dominik, M; Beaulieu, Jean-Philippe; Udalski, A; Jorgensen, UG; Sumi, T; Bramich, DM; Browne, P; Horne, K; Hundertmark, M; Ipatov, S; Kains, N; Snodgrass, C; Steele, IA; Alsubai, KA; Andersen, JM; Novati, SC; Damerdji, Y; Diehl, C; Elyiv, A; Giannini, E; Hardis, S; Harpsoe, K; Hinse, TC; Juncher, D; Kerins, E; Korhonen, H; Liebig, C; Mancini, L; Mathiasen, M; Penny, MT; Rabus, M; Rahvar, S; Scarpetta, G; Skottfelt, J; Southworth, J; Surdej, J; Tregloan-Reed, J; Vilela, C; Wambsganss, J; Skowron, J; Poleski, R; Kozlowski, S; Wyrzykowski, E; Szymanski, MK; Kubiak, M; Pietrukowicz, P; Pietrzynski, G; Soszynski, I; Ulaczyk, K; Albrow, MD; Bachelet, E; Barry, R; Batista, V; Bhattacharya, A; Brillant, S; Caldwell, JAR; Cassan, A; Cole, Andrew; Corrales, E; Coutures, C; Dieters, S; Dominis Prester, D; Donatowicz, J; Fouque, P; Greenhill, J; Kane, SR; Kubas, D; Marquette, J-B; Menzies, J; Pere, C; Pollard, KR; Zub, M; Christie, G; DePoy, DL; Dong, S; Drummond, J; Gaudi, BS; Henderson, CB; Hwang, KH; Jung, YK; Kavka, A; Koo, J-R; Lee, C-U; Maoz, D; Monard, LAG; Natusch, T; Ngan, H; Park, H; Pogge, RW; Porritt, I; Shin, I-G; Shvartzvald, Y; Tan, TG; Yee, JC; Abe, F; Bennett, DP; Bond, IA; Botzler, CS; Freeman, M; Fukui, A; Fukunaga, D; Itow, Y; Koshimoto, N; Ling, CH; Masuda, K; Matsubara, Y; Muraki, Y; Namba, S; Ohnishi, K; Rattenbury, NJ; Saito, T; Sullivan, DJ; Sweatman, WL; Suzuki, D; Tristram, PJ; Tsurumi, N; Wada, K; Yamai, N; Yock, PCM; Yonehara, A

A super-Jupiter orbiting a late-type star: a refined analysis of microlensing event OGLE-2012-BLG-0406

journal contribution

posted on 2025-01-15, 01:00 authored by Y Tsapras, J-H Choi, RA Street, C Han, V Bozza, A Gould, M Dominik, Jean-Philippe BeaulieuJean-Philippe Beaulieu, A Udalski, UG Jorgensen, T Sumi, DM Bramich, P Browne, K Horne, M Hundertmark, S Ipatov, N Kains, C Snodgrass, IA Steele, KA Alsubai, JM Andersen, SC Novati, Y Damerdji, C Diehl, A Elyiv, E Giannini, S Hardis, K Harpsoe, TC Hinse, D Juncher, E Kerins, H Korhonen, C Liebig, L Mancini, M Mathiasen, MT Penny, M Rabus, S Rahvar, G Scarpetta, J Skottfelt, J Southworth, J Surdej, J Tregloan-Reed, C Vilela, J Wambsganss, J Skowron, R Poleski, S Kozlowski, E Wyrzykowski, MK Szymanski, M Kubiak, P Pietrukowicz, G Pietrzynski, I Soszynski, K Ulaczyk, MD Albrow, E Bachelet, R Barry, V Batista, A Bhattacharya, S Brillant, JAR Caldwell, A Cassan, Andrew ColeAndrew Cole, E Corrales, C Coutures, S Dieters, D Dominis Prester, J Donatowicz, P Fouque, J Greenhill, SR Kane, D Kubas, J-B Marquette, J Menzies, C Pere, KR Pollard, M Zub, G Christie, DL DePoy, S Dong, J Drummond, BS Gaudi, CB Henderson, KH Hwang, YK Jung, A Kavka, J-R Koo, C-U Lee, D Maoz, LAG Monard, T Natusch, H Ngan, H Park, RW Pogge, I Porritt, I-G Shin, Y Shvartzvald, TG Tan, JC Yee, F Abe, DP Bennett, IA Bond, CS Botzler, M Freeman, A Fukui, D Fukunaga, Y Itow, N Koshimoto, CH Ling, K Masuda, Y Matsubara, Y Muraki, S Namba, K Ohnishi, NJ Rattenbury, T Saito, DJ Sullivan, WL Sweatman, D Suzuki, PJ Tristram, N Tsurumi, K Wada, N Yamai, PCM Yock, A Yonehara

We present a detailed analysis of survey and follow-up observations of microlensing event OGLE-2012-BLG-0406 based on data obtained from 10 different observatories. Intensive coverage of the light curve, especially the perturbation part, allowed us to accurately measure the parallax effect and lens orbital motion. Combining our measurement of the lens parallax with the angular Einstein radius determined from finite-source effects, we estimate the physical parameters of the lens system. We find that the event was caused by a 2.73 ± 0.43 M_J planet orbiting a 0.44 ± 0.07 M_☉ early M-type star. The distance to the lens is 4.97 ± 0.29 kpc and the projected separation between the host star and its planet at the time of the event is 3.45 ± 0.26 AU. We find that the additional coverage provided by follow-up observations, especially during the planetary perturbation, leads to a more accurate determination of the physical parameters of the lens.

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Publication title

The Astrophysical Journal

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782

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1

Article number

48

Number

48

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1-9

ISSN

0004-637X

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School of Natural Sciences, Physics

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Univ Chicago Press

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Published

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1427 E 60Th St, Chicago, USA, Il, 60637-2954

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280120 Expanding knowledge in the physical sciences

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A super-Jupiter orbiting a late-type star: a refined analysis of microlensing event OGLE-2012-BLG-0406

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