A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251

Aims. We present the analysis of the gravitational microlensing event OGLE-2011-BLG-0251. This anomalous event was observed by several survey and follow-up collaborations conducting microlensing observations towards the Galactic bulge.Methods. Based on detailed modelling of the observed light curve,...

Full description

Bibliographic Details
Main Authors:	Kains, N., Street, R., Choi, J., Han, C., Udalski, A., Almeida, L., Jablonski, F., Tristram, P., Jorgensen, U., Szymanski, M., Kubiak, M., Pietrzynski, G., Soszynski, I., Poleski, R., Kozlowski, S., Pietrukowicz, P., Ulaczyk, K., Wyrzykowski, L., Skowron, J., Alsubai, K., Bozza, V., Browne, P., Burgdorf, M., Calchi Novati, S., Dodds, P., Dominik, M., Dreizler, S., Fang, X., Grundahl, F., Gu, C., Hardis, S., Harpsoe, K., Hessman, F., Hinse, T., Hornstrup, A., Hundertmark, M., Jessen-Hansen, J., Kerins, E., Liebig, C., Lund, M., Lundkvist, M., Mancini, L., Mathiasen, M., Penny, M., Rahvar, S., Ricci, D., Sahu, K., Scarpetta, G., Skottfelt, J., Snodgrass, C., Southworth, J., Surdej, J., Tregloan-Reed, J., Wambsganss, J., Wertz, O., Bajek, D., Bramich, D., Horne, K., Ipatov, S., Steele, I., Tsapras, Y., Abe, F., Bennett, D., Bond, I., Botzler, C., Chote, P., Freeman, M., Fukui, A., Furusawa, K., Itow, Y., Ling, C., Masuda, K., Matsubara, Y., Miyake, N., Muraki, Y., Ohnishi, K., Rattenbury, N., Saito, T., Sullivan, D., Sumi, T., Suzuki, D., Suzuki, K., Sweatman, W., Takino, S., Wada, K., Yock, P., Allen, W., Batista, V., Chung, S., Christie, G., DePoy, D., Drummond, J., Gaudi, B., Gould, A., Henderson, C., Jung, Y., Koo, J., Lee, C., McCormick, J., McGregor, D., Munoz, J., Natusch, T., Ngan, H., Park, H., Pogge, R., Shin, I., Yee, J., Albrow, M., Bachelet, E., Beaulieu, J., Brillant, S., Caldwell, J., Cassan, A., Cole, A., Corrales, E., Coutures, C., Dieters, S., Dominis Prester, D., Donatowicz, J., Fouque, P., Greenhill, J., Kane, S., Kubas, D., Marquette, J., Martin, R., Meintjes, P., Menzies, J., Pollard, K., Williams, Andrew, Wouters, D., Zub, M.
Format:	Journal Article
Published:	EDP Sciences 2013
Subjects:	detection gravitational lensing weak – planets and satellites Galaxy planetary systems bulge
Online Access:	http://www.aanda.org/articles/aa/abs/2013/04/aa20626-12/aa20626-12.html http://hdl.handle.net/20.500.11937/46406

_version_	1848757548147015680
author	Kains, N. Street, R. Choi, J. Han, C. Udalski, A. Almeida, L. Jablonski, F. Tristram, P. Jorgensen, U. Szymanski, M. Kubiak, M. Pietrzynski, G. Soszynski, I. Poleski, R. Kozlowski, S. Pietrukowicz, P. Ulaczyk, K. Wyrzykowski, L. Skowron, J. Alsubai, K. Bozza, V. Browne, P. Burgdorf, M. Calchi Novati, S. Dodds, P. Dominik, M. Dreizler, S. Fang, X. Grundahl, F. Gu, C. Hardis, S. Harpsoe, K. Hessman, F. Hinse, T. Hornstrup, A. Hundertmark, M. Jessen-Hansen, J. Kerins, E. Liebig, C. Lund, M. Lundkvist, M. Mancini, L. Mathiasen, M. Penny, M. Rahvar, S. Ricci, D. Sahu, K. Scarpetta, G. Skottfelt, J. Snodgrass, C. Southworth, J. Surdej, J. Tregloan-Reed, J. Wambsganss, J. Wertz, O. Bajek, D. Bramich, D. Horne, K. Ipatov, S. Steele, I. Tsapras, Y. Abe, F. Bennett, D. Bond, I. Botzler, C. Chote, P. Freeman, M. Fukui, A. Furusawa, K. Itow, Y. Ling, C. Masuda, K. Matsubara, Y. Miyake, N. Muraki, Y. Ohnishi, K. Rattenbury, N. Saito, T. Sullivan, D. Sumi, T. Suzuki, D. Suzuki, K. Sweatman, W. Takino, S. Wada, K. Yock, P. Allen, W. Batista, V. Chung, S. Christie, G. DePoy, D. Drummond, J. Gaudi, B. Gould, A. Henderson, C. Jung, Y. Koo, J. Lee, C. McCormick, J. McGregor, D. Munoz, J. Natusch, T. Ngan, H. Park, H. Pogge, R. Shin, I. Yee, J. Albrow, M. Bachelet, E. Beaulieu, J. Brillant, S. Caldwell, J. Cassan, A. Cole, A. Corrales, E. Coutures, C. Dieters, S. Dominis Prester, D. Donatowicz, J. Fouque, P. Greenhill, J. Kane, S. Kubas, D. Marquette, J. Martin, R. Meintjes, P. Menzies, J. Pollard, K. Williams, Andrew Wouters, D. Zub, M.
author_facet	Kains, N. Street, R. Choi, J. Han, C. Udalski, A. Almeida, L. Jablonski, F. Tristram, P. Jorgensen, U. Szymanski, M. Kubiak, M. Pietrzynski, G. Soszynski, I. Poleski, R. Kozlowski, S. Pietrukowicz, P. Ulaczyk, K. Wyrzykowski, L. Skowron, J. Alsubai, K. Bozza, V. Browne, P. Burgdorf, M. Calchi Novati, S. Dodds, P. Dominik, M. Dreizler, S. Fang, X. Grundahl, F. Gu, C. Hardis, S. Harpsoe, K. Hessman, F. Hinse, T. Hornstrup, A. Hundertmark, M. Jessen-Hansen, J. Kerins, E. Liebig, C. Lund, M. Lundkvist, M. Mancini, L. Mathiasen, M. Penny, M. Rahvar, S. Ricci, D. Sahu, K. Scarpetta, G. Skottfelt, J. Snodgrass, C. Southworth, J. Surdej, J. Tregloan-Reed, J. Wambsganss, J. Wertz, O. Bajek, D. Bramich, D. Horne, K. Ipatov, S. Steele, I. Tsapras, Y. Abe, F. Bennett, D. Bond, I. Botzler, C. Chote, P. Freeman, M. Fukui, A. Furusawa, K. Itow, Y. Ling, C. Masuda, K. Matsubara, Y. Miyake, N. Muraki, Y. Ohnishi, K. Rattenbury, N. Saito, T. Sullivan, D. Sumi, T. Suzuki, D. Suzuki, K. Sweatman, W. Takino, S. Wada, K. Yock, P. Allen, W. Batista, V. Chung, S. Christie, G. DePoy, D. Drummond, J. Gaudi, B. Gould, A. Henderson, C. Jung, Y. Koo, J. Lee, C. McCormick, J. McGregor, D. Munoz, J. Natusch, T. Ngan, H. Park, H. Pogge, R. Shin, I. Yee, J. Albrow, M. Bachelet, E. Beaulieu, J. Brillant, S. Caldwell, J. Cassan, A. Cole, A. Corrales, E. Coutures, C. Dieters, S. Dominis Prester, D. Donatowicz, J. Fouque, P. Greenhill, J. Kane, S. Kubas, D. Marquette, J. Martin, R. Meintjes, P. Menzies, J. Pollard, K. Williams, Andrew Wouters, D. Zub, M.
author_sort	Kains, N.
building	Curtin Institutional Repository
collection	Online Access
description	Aims. We present the analysis of the gravitational microlensing event OGLE-2011-BLG-0251. This anomalous event was observed by several survey and follow-up collaborations conducting microlensing observations towards the Galactic bulge.Methods. Based on detailed modelling of the observed light curve, we find that the lens is composed of twomasses with a mass ratio q = 1.9 × 10-3. Thanks to our detection of higher-order effects on the light curve due to the Earth’s orbital motion and the finite size of source, we are able to measure the mass and distance to the lens unambiguously.Results. We find that the lens is made up of a planet of mass 0.53 ± 0.21 MJ orbiting an M dwarf host star with a mass of 0.26 ± 0.11 M. The planetary system is located at a distance of 2.57 ± 0.61 kpc towards the Galactic centre. The projected separation of the planet from its host star is d = 1.408 ± 0.019, in units of the Einstein radius, which corresponds to 2.72 ± 0.75 AU in physical units. We also identified a competitive model with similar planet and host star masses, but with a smaller orbital radius of 1.50 ± 0.50 AU. The planet is therefore located beyond the snow line of its host star, which we estimate to be around ~1-1.5 AU.
first_indexed	2025-11-14T09:29:50Z
format	Journal Article
id	curtin-20.500.11937-46406
institution	Curtin University Malaysia
institution_category	Local University
last_indexed	2025-11-14T09:29:50Z
publishDate	2013
publisher	EDP Sciences
recordtype	eprints
repository_type	Digital Repository
spelling	curtin-20.500.11937-464062017-02-28T01:44:37Z A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251 Kains, N. Street, R. Choi, J. Han, C. Udalski, A. Almeida, L. Jablonski, F. Tristram, P. Jorgensen, U. Szymanski, M. Kubiak, M. Pietrzynski, G. Soszynski, I. Poleski, R. Kozlowski, S. Pietrukowicz, P. Ulaczyk, K. Wyrzykowski, L. Skowron, J. Alsubai, K. Bozza, V. Browne, P. Burgdorf, M. Calchi Novati, S. Dodds, P. Dominik, M. Dreizler, S. Fang, X. Grundahl, F. Gu, C. Hardis, S. Harpsoe, K. Hessman, F. Hinse, T. Hornstrup, A. Hundertmark, M. Jessen-Hansen, J. Kerins, E. Liebig, C. Lund, M. Lundkvist, M. Mancini, L. Mathiasen, M. Penny, M. Rahvar, S. Ricci, D. Sahu, K. Scarpetta, G. Skottfelt, J. Snodgrass, C. Southworth, J. Surdej, J. Tregloan-Reed, J. Wambsganss, J. Wertz, O. Bajek, D. Bramich, D. Horne, K. Ipatov, S. Steele, I. Tsapras, Y. Abe, F. Bennett, D. Bond, I. Botzler, C. Chote, P. Freeman, M. Fukui, A. Furusawa, K. Itow, Y. Ling, C. Masuda, K. Matsubara, Y. Miyake, N. Muraki, Y. Ohnishi, K. Rattenbury, N. Saito, T. Sullivan, D. Sumi, T. Suzuki, D. Suzuki, K. Sweatman, W. Takino, S. Wada, K. Yock, P. Allen, W. Batista, V. Chung, S. Christie, G. DePoy, D. Drummond, J. Gaudi, B. Gould, A. Henderson, C. Jung, Y. Koo, J. Lee, C. McCormick, J. McGregor, D. Munoz, J. Natusch, T. Ngan, H. Park, H. Pogge, R. Shin, I. Yee, J. Albrow, M. Bachelet, E. Beaulieu, J. Brillant, S. Caldwell, J. Cassan, A. Cole, A. Corrales, E. Coutures, C. Dieters, S. Dominis Prester, D. Donatowicz, J. Fouque, P. Greenhill, J. Kane, S. Kubas, D. Marquette, J. Martin, R. Meintjes, P. Menzies, J. Pollard, K. Williams, Andrew Wouters, D. Zub, M. detection gravitational lensing weak – planets and satellites Galaxy planetary systems bulge Aims. We present the analysis of the gravitational microlensing event OGLE-2011-BLG-0251. This anomalous event was observed by several survey and follow-up collaborations conducting microlensing observations towards the Galactic bulge.Methods. Based on detailed modelling of the observed light curve, we find that the lens is composed of twomasses with a mass ratio q = 1.9 × 10-3. Thanks to our detection of higher-order effects on the light curve due to the Earth’s orbital motion and the finite size of source, we are able to measure the mass and distance to the lens unambiguously.Results. We find that the lens is made up of a planet of mass 0.53 ± 0.21 MJ orbiting an M dwarf host star with a mass of 0.26 ± 0.11 M. The planetary system is located at a distance of 2.57 ± 0.61 kpc towards the Galactic centre. The projected separation of the planet from its host star is d = 1.408 ± 0.019, in units of the Einstein radius, which corresponds to 2.72 ± 0.75 AU in physical units. We also identified a competitive model with similar planet and host star masses, but with a smaller orbital radius of 1.50 ± 0.50 AU. The planet is therefore located beyond the snow line of its host star, which we estimate to be around ~1-1.5 AU. 2013 Journal Article http://hdl.handle.net/20.500.11937/46406 http://www.aanda.org/articles/aa/abs/2013/04/aa20626-12/aa20626-12.html EDP Sciences restricted
spellingShingle	detection gravitational lensing weak – planets and satellites Galaxy planetary systems bulge Kains, N. Street, R. Choi, J. Han, C. Udalski, A. Almeida, L. Jablonski, F. Tristram, P. Jorgensen, U. Szymanski, M. Kubiak, M. Pietrzynski, G. Soszynski, I. Poleski, R. Kozlowski, S. Pietrukowicz, P. Ulaczyk, K. Wyrzykowski, L. Skowron, J. Alsubai, K. Bozza, V. Browne, P. Burgdorf, M. Calchi Novati, S. Dodds, P. Dominik, M. Dreizler, S. Fang, X. Grundahl, F. Gu, C. Hardis, S. Harpsoe, K. Hessman, F. Hinse, T. Hornstrup, A. Hundertmark, M. Jessen-Hansen, J. Kerins, E. Liebig, C. Lund, M. Lundkvist, M. Mancini, L. Mathiasen, M. Penny, M. Rahvar, S. Ricci, D. Sahu, K. Scarpetta, G. Skottfelt, J. Snodgrass, C. Southworth, J. Surdej, J. Tregloan-Reed, J. Wambsganss, J. Wertz, O. Bajek, D. Bramich, D. Horne, K. Ipatov, S. Steele, I. Tsapras, Y. Abe, F. Bennett, D. Bond, I. Botzler, C. Chote, P. Freeman, M. Fukui, A. Furusawa, K. Itow, Y. Ling, C. Masuda, K. Matsubara, Y. Miyake, N. Muraki, Y. Ohnishi, K. Rattenbury, N. Saito, T. Sullivan, D. Sumi, T. Suzuki, D. Suzuki, K. Sweatman, W. Takino, S. Wada, K. Yock, P. Allen, W. Batista, V. Chung, S. Christie, G. DePoy, D. Drummond, J. Gaudi, B. Gould, A. Henderson, C. Jung, Y. Koo, J. Lee, C. McCormick, J. McGregor, D. Munoz, J. Natusch, T. Ngan, H. Park, H. Pogge, R. Shin, I. Yee, J. Albrow, M. Bachelet, E. Beaulieu, J. Brillant, S. Caldwell, J. Cassan, A. Cole, A. Corrales, E. Coutures, C. Dieters, S. Dominis Prester, D. Donatowicz, J. Fouque, P. Greenhill, J. Kane, S. Kubas, D. Marquette, J. Martin, R. Meintjes, P. Menzies, J. Pollard, K. Williams, Andrew Wouters, D. Zub, M. A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251
title	A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251
title_full	A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251
title_fullStr	A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251
title_full_unstemmed	A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251
title_short	A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251
title_sort	giant planet beyond the snow line in microlensing event ogle-2011-blg-0251
topic	detection gravitational lensing weak – planets and satellites Galaxy planetary systems bulge
url	http://www.aanda.org/articles/aa/abs/2013/04/aa20626-12/aa20626-12.html http://hdl.handle.net/20.500.11937/46406

A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251

Similar Items