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    KMT-2019-BLG-0842Lb: A Cold Planet Below the Uranus/Sun Mass Ratio (2019)

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    1912.03822v1.pdf (3.110Mb)
    Type of Content
    Journal Article
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    https://hdl.handle.net/10092/101006
    
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    • Science: Journal Articles [1113]
    Authors
    Jung YK
    Udalski A
    Zang W
    Bond IA
    Yee JC
    Albrow MD
    Chung S-J
    Gould A
    Han C
    Hwang K-H
    Ryu Y-H
    Shin I-G
    Shvartzvald Y
    Cha S-M
    Kim D-J
    Kim H-W
    Kim S-L
    Lee C-U
    Lee D-J
    Lee Y
    Park B-G
    Pogge RW
    Mróz P
    Szymański MK
    Skowron J
    Poleski R
    Soszyński I
    Pietrukowicz P
    Kozłowski S
    Ulaczyk K
    Rybicki KA
    Iwanek P
    Wrona M
    Abe F
    Barry R
    Bennett DP
    Bhattacharya A
    Donachie M
    Fujii H
    Fukui A
    Hirao Y
    Itow Y
    Kamei Y
    Kondo I
    Koshimoto N
    Li MCA
    Matsubara Y
    Miyazaki S
    Muraki Y
    Nagakane M
    Ranc C
    Rattenbury NJ
    Satoh Y
    Shoji H
    Suematsu H
    Sullivan DJ
    Sumi T
    Suzuki D
    Tristram PJ
    Yamakawa T
    Yamamwaki T
    Yonehara A
    show all
    Alternative Title
    A Cold Planet Below the Uranus/Sun Mass Ratio
    Abstract

    With $q=(4.09\pm 0.27) \times 10^{-5}$, KMT-2019-BLG-0842Lb is the second cold planet with planet-host mass ratio $q$ below that of Uranus relative to the Sun ($q=4.37\times 10^{-5}$), the first having been discovered only in 2018. Hence, such cold, sub-Uranus-ratio planets are probably not rare. We discuss possible improvements in the search for these planets. The Bayesian estimates for the host mass, planet mass, system distance, and planet-host projected separation are $M_{\rm host}=0.76\pm 0.40 M_\odot$, $M_{\rm planet}=10.3\pm 5.5 M_\oplus$, $D_L = 3.3\pm 1.3$ kpc, and $a_\perp = 3.3\pm 1.4$ AU, respectively. The blended light is plausibly due to the host star, an identification that could be tested by high resolution images taken during the next (2020) bulge season.

    Citation
    Jung YK, Udalski A, Zang W, Bond IA, Yee JC, Albrow MD, Chung S-J, Gould A, Han C, Hwang K-H, Ryu Y-H, Shin I-G, Shvartzvald Y, Cha S-M, Kim D-J, Kim H-W, Kim S-L, Lee C-U, Lee D-J, Lee Y, Park B-G, Pogge RW, Mróz P, Szymański MK, Skowron J, Poleski R, Soszyński I, Pietrukowicz P, Kozłowski S, Ulaczyk K, Rybicki KA, Iwanek P, Wrona M, Abe F, Barry R, Bennett DP, Bhattacharya A, Donachie M, Fujii H, Fukui A, Hirao Y, Itow Y, Kamei Y, Kondo I, Koshimoto N, Li MCA, Matsubara Y, Miyazaki S, Muraki Y, Nagakane M, Ranc C, Rattenbury NJ, Satoh Y, Shoji H, Suematsu H, Sullivan DJ, Sumi T, Suzuki D, Tristram PJ, Yamakawa T, Yamamwaki T, Yonehara A KMT-2019-BLG-0842Lb: A Cold Planet Below the Uranus/Sun Mass Ratio.
    This citation is automatically generated and may be unreliable. Use as a guide only.
    Keywords
    astro-ph.EP; astro-ph.GA; astro-ph.SR; gravitational lensing: micro
    ANZSRC Fields of Research
    51 - Physical sciences::5101 - Astronomical sciences::510107 - Planetary science (excl. solar system and planetary geology)
    51 - Physical sciences::5101 - Astronomical sciences::510104 - Galactic astronomy
    51 - Physical sciences::5101 - Astronomical sciences::510109 - Stellar astronomy and planetary systems
    Rights
    All rights reserved unless otherwise stated
    http://hdl.handle.net/10092/17651

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