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The first Neptune a...
The first Neptune analog or super-earth with a Neptune-like orbit : MOA-2013-BLG-605LB
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- Sumi, T. (author)
- Osaka University
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- Udalski, A. (author)
- University of Warsaw
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- Bennett, D. P. (author)
- University of Notre Dame,NASA Goddard Space Flight Center
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- Gould, A. (author)
- Ohio State University
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- Poleski, R. (author)
- Ohio State University
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- Bond, I. A. (author)
- Massey University
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- Skowron, J. (author)
- University of Warsaw
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- Rattenbury, N. (author)
- University of Auckland
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- Pogge, R. W. (author)
- Ohio State University
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- Bensby, T. (author)
- Lund University,Lunds universitet,Astronomi - Har omorganiserats,Institutionen för astronomi och teoretisk fysik - Har omorganiserats,Naturvetenskapliga fakulteten,Lund Observatory - Has been reorganised,Department of Astronomy and Theoretical Physics - Has been reorganised,Faculty of Science
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- Beaulieu, J. P. (author)
- The French National Centre for Scientific Research (CNRS)
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- Marquette, J. B. (author)
- The French National Centre for Scientific Research (CNRS)
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- Batista, V. (author)
- The French National Centre for Scientific Research (CNRS)
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- Brillant, S. (author)
- European Southern Observatory
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- Abe, F. (author)
- Nagoya University
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- Asakura, Y. (author)
- Nagoya University
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- Bhattacharya, A. (author)
- University of Notre Dame
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- Donachie, M. (author)
- University of Auckland
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- Freeman, M. (author)
- University of Auckland
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- Fukui, A. (author)
- National Astronomical Observatory of Japan
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- Hirao, Y. (author)
- Osaka University
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- Itow, Y. (author)
- Nagoya University
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- Koshimoto, N. (author)
- Osaka University
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- Li, M. C A (author)
- Lund University,Lunds universitet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,University of Auckland
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- Ling, C. H. (author)
- Massey University
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- Masuda, K. (author)
- Nagoya University
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- Matsubara, Y. (author)
- Nagoya University
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- Muraki, Y. (author)
- Nagoya University
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- Nagakane, M. (author)
- Osaka University
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- Ohnishi, K. (author)
- Nagano National College of Technology
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- Oyokawa, H. (author)
- Nagoya University
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- Saito, To (author)
- Tokyo Metropolitan College of Aeronautical Engineering
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- Sharan, A. (author)
- University of Auckland
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- Sullivan, D. J. (author)
- Te Herenga Waka / Victoria University of Wellington
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- Suzuki, D. (author)
- University of Notre Dame
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- Tristram, P. J. (author)
- Mt. John University Observatory
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- Yonehara, A. (author)
- Kyoto Sangyo University
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- Szymański, M. K. (author)
- University of Warsaw
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- Ulaczyk, K. (author)
- University of Warsaw
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- Kozłowski, S. (author)
- University of Warsaw
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- Kubiak, M. (author)
- University of Warsaw
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- Pietrukowicz, P. (author)
- University of Warsaw
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- Pietrzyński, G. (author)
- University of Warsaw
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- Soszyński, I. (author)
- University of Warsaw
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- Han, C. (author)
- Chungbuk National University
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- Jung, Y. K. (author)
- Chungbuk National University
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- Shin, I. G. (author)
- Chungbuk National University
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- Lee, C. U. (author)
- Korea Astronomy and Space Science Institute (KASI)
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(creator_code:org_t)
- 2016
- 2016
- English.
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In: Astrophysical Journal. - 0004-637X. ; 825:2
- Related links:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.3...
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Abstract
Subject headings
Close
- We present the discovery of the first Neptune analog exoplanet or super-Earth with a Neptune-like orbit, MOA-2013-BLG-605Lb. This planet has a mass similar to that of Neptune or a super-Earth and it orbits at 9 ∼ 14 times the expected position of the snow line, a snow, which is similar to Neptune's separation of 11 a snow from the Sun. The planet/host-star mass ratio is q = (3.6 ± 0.7) × 10-4 and the projected separation normalized by the Einstein radius is s = 2.39 ± 0.05. There are three degenerate physical solutions and two of these are due to a new type of degeneracy in the microlensing parallax parameters, which we designate "the wide degeneracy." The three models have (i) a Neptune-mass planet with a mass of Mp = 21-7 +6M⊕ orbiting a low-mass M-dwarf with a mass of Mh = 0.19-0.06 +0.05M⊙, (ii) a mini-Neptune with Mp = 7.9-1.2 +1.8M⊕ orbiting a brown dwarf host with Mh = 0.068-0.011 +0.019M⊙, and (iii) a super-Earth with Mp = 3.2-0.3 +0.5MM⊕ orbiting a low-mass brown dwarf host with Mh = 0.025-0.0004 +0.005M⊙, which is slightly favored. The 3D planet-host separations are 4.6-1.2 +4.7au, 2.1-0.2 +1.0au, and 0.94-0.02 +0.67au, which are 8.9-1.4 +10.5, 12-1 +7, or 14-1 +11 times larger than a snow for these models, respectively. Keck adaptive optics observations confirm that the lens is faint. This discovery suggests that low-mass planets with Neptune-like orbits are common. Therefore processes similar to the one that formed Neptune in our own solar system or cold super-Earths may be common in other solar systems.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- Galaxy: bulge
- gravitational lensing: micro
- planetary systems
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Sumi, T.
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Udalski, A.
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Bennett, D. P.
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Gould, A.
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Poleski, R.
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Bond, I. A.
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show more...
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Skowron, J.
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Rattenbury, N.
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Pogge, R. W.
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Bensby, T.
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Beaulieu, J. P.
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Marquette, J. B.
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Batista, V.
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Brillant, S.
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Abe, F.
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Asakura, Y.
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Bhattacharya, A.
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Donachie, M.
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Freeman, M.
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Fukui, A.
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Hirao, Y.
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Itow, Y.
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Koshimoto, N.
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Li, M. C A
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Ling, C. H.
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Masuda, K.
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Matsubara, Y.
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Muraki, Y.
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Nagakane, M.
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Ohnishi, K.
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Oyokawa, H.
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Saito, To
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Sharan, A.
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Sullivan, D. J.
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Suzuki, D.
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Tristram, P. J.
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Yonehara, A.
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Szymański, M. K.
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Ulaczyk, K.
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Kozłowski, S.
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Kubiak, M.
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Pietrukowicz, P.
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Pietrzyński, G.
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Soszyński, I.
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Han, C.
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Jung, Y. K.
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Shin, I. G.
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Lee, C. U.
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