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OGLE-2016-BLG-1190Lb : The First Spitzer Bulge Planet Lies Near the Planet/Brown-dwarf Boundary
- Ryu, Y. -H. (author)
- Yee, J. C. (author)
- Udalski, A. (author)
- show more...
- Bond, I. A. (author)
- Shvartzvald, Y. (author)
- Zang, W. (author)
- Jaimes, R. Figuera (author)
- Jorgensen, U. G. (author)
- Zhu, W. (author)
- Huang, C. X. (author)
- Jung, Y. K. (author)
- Albrow, M. D. (author)
- Chung, S. -J. (author)
- Gould, A. (author)
- Han, C. (author)
- Hwang, K. -H. (author)
- Shin, I. -G. (author)
- Cha, S. -M. (author)
- Kim, D. -J. (author)
- Kim, H. -W. (author)
- Kim, S. -L. (author)
- Lee, C. -U. (author)
- Lee, D. -J. (author)
- Lee, Y. (author)
- Park, B. -G. (author)
- Pogge, R. W. (author)
- Novati, S. Calchi (author)
- Carey, S. (author)
- Henderson, C. B. (author)
- Beichman, C. (author)
- Gaudi, B. S. (author)
- Mroz, P. (author)
- Poleski, R. (author)
- Skowron, J. (author)
- Szymanski, M. K. (author)
- Soszynski, I. (author)
- Kozlowski, S. (author)
- Pietrukowicz, P. (author)
- Ulaczyk, K. (author)
- Pawlak, M. (author)
- Abe, F. (author)
- Asakura, Y. (author)
- Barry, R. (author)
- Bennett, D. P. (author)
- Bhattacharya, A. (author)
- Donachie, M. (author)
- Evans, P. (author)
- Fukui, A. (author)
- Hirao, Y. (author)
- Itow, Y. (author)
- Kawasaki, K. (author)
- Koshimoto, N. (author)
- Li, M. C. A. (author)
- Ling, C. H. (author)
- Masuda, K. (author)
- Matsubara, Y. (author)
- Miyazaki, S. (author)
- Muraki, Y. (author)
- Nagakane, M. (author)
- Ohnishi, K. (author)
- Ranc, C. (author)
- Rattenbury, N. J. (author)
- Saito, To (author)
- Sharan, A. (author)
- Sullivan, D. J. (author)
- Sumi, T. (author)
- Suzuki, D. (author)
- Tristram, P. J. (author)
- Yamada, T. (author)
- Yamada, T. (author)
- Yonehara, A. (author)
- Bryden, G. (author)
- Howell, S. B. (author)
- Jacklin, S. (author)
- Penny, M. T. (author)
- Mao, S. (author)
- Fouque, Pascal (author)
- Wang, T. (author)
- Street, R. A. (author)
- Tsapras, Y. (author)
- Hundertmark, M. (author)
- Bachelet, E. (author)
- Dominik, M. (author)
- Li, Z. (author)
- Cross, S. (author)
- Cassan, A. (author)
- Horne, K. (author)
- Schmidt, R. (author)
- Wambsganss, J. (author)
- Ment, S. K. (author)
- Maoz, D. (author)
- Snodgrass, C. (author)
- Steele, I. A. (author)
- Bozza, V. (author)
- Burgdorf, M. J. (author)
- D'Ago, G. (author)
- Evans, D. F. (author)
- Hinse, T. C. (author)
- Kerins, E. (author)
- Kokotanekova, R. (author)
- Longa, P. (author)
- MacKenzie, J. (author)
- Popovas, A. (author)
- Rabus, M. (author)
- Rahvar, S. (author)
- Sajadian, S. (author)
- Skottfelt, J. (author)
- Southworth, J. (author)
- von Essen, C. (author)
- show less...
- (creator_code:org_t)
- 2017-12-28
- 2018
- English.
- In: Astronomical Journal. - : American Astronomical Society. - 0004-6256 .- 1538-3881. ; 155:1
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- We report the discovery of OGLE-2016-BLG-1190Lb, which is likely to be the first Spitzer microlensing planet in the Galactic bulge/ bar, an assignation that can be confirmed by two epochs of high-resolution imaging of the combined source-lens baseline object. The planet's mass, M-p = 13.4 +/- 0.9 M-J, places it right at the deuteriumburning limit, i. e., the conventional boundary between planets and brown dwarfs. Its existence raises the question of whether such objects are really planets (formed within the disks of their hosts) or failed stars (lowmass objects formed by gas fragmentation). This question may ultimately be addressed by comparing disk and bulge/bar planets, which is a goal of the Spitzer microlens program. The host is a G dwarf, M-host = 0.89. +/- 0.07 M-circle dot, and the planet has a semimajor axis a similar to 2.0 au. We use Kepler K2 Campaign 9 microlensing data to break the lens-mass degeneracy that generically impacts parallax solutions from Earth-Spitzer observations alone, which is the first successful application of this approach. The microlensing data, derived primarily from near-continuous, ultradense survey observations from OGLE, MOA, and three KMTNet telescopes, contain more orbital information than for any previous microlensing planet, but not quite enough to accurately specify the full orbit. However, these data do permit the first rigorous test of microlensing orbital-motion measurements, which are typically derived from data taken over < 1% of an orbital period.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- gravitational lensing: micro
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
- Ryu, Y. -H.
- Yee, J. C.
- Udalski, A.
- Bond, I. A.
- Shvartzvald, Y.
- Zang, W.
- show more...
- Jaimes, R. Figue ...
- Jorgensen, U. G.
- Zhu, W.
- Huang, C. X.
- Jung, Y. K.
- Albrow, M. D.
- Chung, S. -J.
- Gould, A.
- Han, C.
- Hwang, K. -H.
- Shin, I. -G.
- Cha, S. -M.
- Kim, D. -J.
- Kim, H. -W.
- Kim, S. -L.
- Lee, C. -U.
- Lee, D. -J.
- Lee, Y.
- Park, B. -G.
- Pogge, R. W.
- Novati, S. Calch ...
- Carey, S.
- Henderson, C. B.
- Beichman, C.
- Gaudi, B. S.
- Mroz, P.
- Poleski, R.
- Skowron, J.
- Szymanski, M. K.
- Soszynski, I.
- Kozlowski, S.
- Pietrukowicz, P.
- Ulaczyk, K.
- Pawlak, M.
- Abe, F.
- Asakura, Y.
- Barry, R.
- Bennett, D. P.
- Bhattacharya, A.
- Donachie, M.
- Evans, P.
- Fukui, A.
- Hirao, Y.
- Itow, Y.
- Kawasaki, K.
- Koshimoto, N.
- Li, M. C. A.
- Ling, C. H.
- Masuda, K.
- Matsubara, Y.
- Miyazaki, S.
- Muraki, Y.
- Nagakane, M.
- Ohnishi, K.
- Ranc, C.
- Rattenbury, N. J ...
- Saito, To
- Sharan, A.
- Sullivan, D. J.
- Sumi, T.
- Suzuki, D.
- Tristram, P. J.
- Yamada, T.
- Yonehara, A.
- Bryden, G.
- Howell, S. B.
- Jacklin, S.
- Penny, M. T.
- Mao, S.
- Fouque, Pascal
- Wang, T.
- Street, R. A.
- Tsapras, Y.
- Hundertmark, M.
- Bachelet, E.
- Dominik, M.
- Li, Z.
- Cross, S.
- Cassan, A.
- Horne, K.
- Schmidt, R.
- Wambsganss, J.
- Ment, S. K.
- Maoz, D.
- Snodgrass, C.
- Steele, I. A.
- Bozza, V.
- Burgdorf, M. J.
- Ciceri, Simona
- D'Ago, G.
- Evans, D. F.
- Hinse, T. C.
- Kerins, E.
- Kokotanekova, R.
- Longa, P.
- MacKenzie, J.
- Popovas, A.
- Rabus, M.
- Rahvar, S.
- Sajadian, S.
- Skottfelt, J.
- Southworth, J.
- von Essen, C.
- show less...
- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- Articles in the publication
- Astronomical Jou ...
- By the university
- Stockholm University
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