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Title: MOA-2013-BLG-220Lb: Massive planetary companion to galactic-disk host

We report the discovery of MOA-2013-BLG-220Lb, which has a super-Jupiter mass ratio q = 3.01 ± 0.02 × 10{sup –3} relative to its host. The proper motion, μ = 12.5 ± 1 mas yr{sup –1}, is one of the highest for microlensing planets yet discovered, implying that it will be possible to separately resolve the host within ∼7 yr. Two separate lines of evidence imply that the planet and host are in the Galactic disk. The planet could have been detected and characterized purely with follow-up data, which has important implications for microlensing surveys, both current and into the Large Synoptic Survey Telescope (LSST) era.
Authors:
; ;  [1] ; ; ; ;  [2] ; ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [8] ;  [9] ;  [10] ;  [11] ;  [12] ;  [13] ;  [14] more »; ; ; ; ; « less
  1. Department of Astronomy, Ohio State University, 140 West 18th Avenue, Columbus, OH 43210 (United States)
  2. Department of Physics, Chungbuk National University, Cheongju 361-763 (Korea, Republic of)
  3. Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa (Poland)
  4. Institute of Information and Mathematical Sciences, Massey University, Private Bag 102-904, North Shore Mail Centre, Auckland (New Zealand)
  5. SUPA, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS (United Kingdom)
  6. Klein Karoo Observatory, Centre for Backyard Astrophysics, Calitzdorp (South Africa)
  7. Turitea Observatory, Palmerston North (New Zealand)
  8. Ellinbank Observatory, Ellinbank, Victoria (Australia)
  9. Dipartimento di Fisica "E. R. Caianiello," Università degli Studi di Salerno, Via S. Allende, I-84081 Baronissi (Italy)
  10. Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch 8020 (New Zealand)
  11. Auckland Observatory, Auckland (New Zealand)
  12. Department of Physics and Astronomy, Texas A and M University, College Station, TX 77843-4242 (United States)
  13. Korea Astronomy and Space Science Institute, 776 Daedukdae-ro, Yuseong-gu, Daejeon 305-348 (Korea, Republic of)
  14. Farm Cove Observatory, Centre for Backyard Astrophysics, Pakuranga, Auckland (New Zealand)
Publication Date:
OSTI Identifier:
22365618
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 790; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; GRAVITATIONAL LENSES; MASS; PROPER MOTION; TELESCOPES