A Super-Jupiter Orbiting a Late-type Star: A Refined Analysis of Microlensing Event OGLE-2012-BLG-0406

Tsapras, Y.; Choi, J-Y.; Street, R.A.; Han, C.; Bozza, V.; Gould, A.; Dominik, M.; Beaulieu, J-P.; Udalski, A.; Jørgensen, U.G.; Sumi, T.; Bramich, D.M.; Browne, P.; Horne, K.; Hundertmark, M.; Ipatov, S.; Kains, N.; Snodgrass, C.; Steele, I.A.; Alsubai, K.A.; Andersen, J.M.; Calchi Novati, S.; Damerdji, Y.; Diehl, C.; Elyiv, A.; Giannini, E.; Hardis, S.; Harpsøe, K.; Hinse, T.C.; Juncher, D.; Kerins, E.; Korhonen, H.; Liebig, C.; Mancini, L.; Mathiasen, M.; Penny, M.T.; 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, L.; Szymanski, M.K.; Kubiak, M.; Pietrukowicz, P.; Pietrzynski, G.; Soszynski, I.; Ulaczyk, K.; Albrow, Michael; Bachelet, E.; Barry, R.; Batista, V.; Bhattacharya, A.; Brillant, S.; Caldwell, J.A.R.; Cassan, A.; Cole, A.; Corrales, E.; Coutures, Ch.; Dieters, S.; Dominis Prester, D.; Donatowicz, J.; Fouqué, P.; Greenhill, J.; Kane, S.R.; Kubas, D.; Marquette, J-B.; Menzies, J.; Père, C.; Pollard, K.R.; Zub, M.; Christie, G.; DePoy, D.L.; Dong, S.; Drummond, J.; Gaudi, B.S.; Henderson, C. B.; Hwang, K.H.; Jung, Y.K.; Kavka, A.; Koo, J-R.; Lee, C-U.; Maoz, D.; Monard, L.A.G.; Natusch, T.; Ngan, H.; Park, H.; Pogge, R.W.; Porritt, I.; Shin, I-G.; Shvartzvald, Y.; Tan, T.G.; Yee, J.C.; Abe, F.; Bennett, D.P.; Bond, I.A.; Botzler, C.S.; Freeman, M.; Fukui, A.; Fukunaga, D.; Itow, Y.; Koshimoto, N.; Ling, C.H.; Masuda, K.; Matsubara, Y.; Muraki, Y.; Namba, S.; Ohnishi, K.; Rattenbury, N.J.; Saito, To.; Sullivan, D.J.; Sweatman, W.L.; Suzuki, D.; Tristram, P.J.; Tsurumi, N.; Wada, K.; Yamai, N.; Yock, P.C.M.; Yonehara, A.

A Super-Jupiter Orbiting a Late-type Star: A Refined Analysis of Microlensing Event OGLE-2012-BLG-0406

Files

12650039_apj_782_1_48.pdf (2.06 MB)

Type of content

Journal Article

UC permalink

http://hdl.handle.net/10092/10526

Publisher's DOI/URI

https://doi.org/10.1088/0004-637X/782/1/48

Publisher

University of Canterbury. Physics and Astronomy

Date

2014

Authors

Tsapras, Y.

Choi, J-Y.

Street, R.A.

Han, C.

Bozza, V.

Gould, A.

Dominik, M.

Beaulieu, J-P.

Udalski, A.

Jørgensen, U.G.

Abstract

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 MJ planet orbiting a 0.44±0.07M 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.

Citation

Tsapras, Y., Choi, J-Y., Street, R.A., Han, C., Bozza, V., Gould, A., Dominik, M., Beaulieu, J-P., Udalski, A., Jørgensen, U.G., Sumi, T., Bramich, D.M., Browne, P., Horne, K., Hundertmark, M., Ipatov, S., Kains, N., Snodgrass, C., Steele, I.A., Alsubai, K.A., Andersen, J.M., Calchi Novati, S., Damerdji, Y., Diehl, C., Elyiv, A., Giannini, E., Hardis, S., Harpsøe, K., Hinse, T.C., Juncher, D., Kerins, E., Korhonen, H., Liebig, C., Mancini, L., Mathiasen, M., Penny, M.T., 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, L., Szymanski, M.K., Kubiak, M., Pietrukowicz, P., Pietrzynski, G., Soszynski, I., Ulaczyk, K., Albrow, M.D., Bachelet, E., Barry, R., Batista, V., Bhattacharya, A., Brillant, S., Caldwell, J.A.R., Cassan, A., Cole, A., Corrales, E., Coutures, Ch., Dieters, S., Dominis Prester, D., Donatowicz, J., Fouqué, P., Greenhill, J., Kane, S.R., Kubas, D., Marquette, J-B., Menzies, J., Père, C., Pollard, K.R., Zub, M., Christie, G., DePoy, D.L., Dong, S., Drummond, J., Gaudi, B.S., Henderson, C. B., Hwang, K.H., Jung, Y.K., Kavka, A., Koo, J-R., Lee, C-U., Maoz, D., Monard, L.A.G., Natusch, T., Ngan, H., Park, H., Pogge, R.W., Porritt, I., Shin, I-G., Shvartzvald, Y., Tan, T.G., Yee, J.C., Abe, F., Bennett, D.P., Bond, I.A., Botzler, C.S., Freeman, M., Fukui, A., Fukunaga, D., Itow, Y., Koshimoto, N., Ling, C.H., Masuda, K., Matsubara, Y., Muraki, Y., Namba, S., Ohnishi, K., Rattenbury, N.J., Saito, To., Sullivan, D.J., Sweatman, W.L., Suzuki, D., Tristram, P.J., Tsurumi, N., Wada, K., Yamai, N., Yock, P.C.M., Yonehara, A. (2014) A Super-Jupiter Orbiting a Late-type Star: A Refined Analysis of Microlensing Event OGLE-2012-BLG-0406. Astrophysical Journal, 782(1), pp. 48.

Keywords

gravitational lensing, planetary systems

ANZSRC fields of research

Fields of Research::51 - Physical sciences::5101 - Astronomical sciences::510109 - Stellar astronomy and planetary systems

https://hdl.handle.net/10092/17651

Collections

Science: Journal Articles

Full item page