K. Furusawa
MOA-2010-BLG-328Lb: A SUB-NEPTUNE ORBITING VERY LATE M DWARF?
Furusawa, K.; Udalski, A.; Sumi, T.; Bennett, D.P.; Bond, I.A.; Gould, A.; Jørgensen, U.G.; Snodgrass, C.; Dominis Prester, D.; Albrow, M.D.; Abe, F.; Botzler, C.S.; Chote, P.; Freeman, M.; Fukui, A.; Harris, P.; Itow, Y.; Ling, C.H.; Masuda, K.; Matsubara, Y.; Miyake, N.; Muraki, Y.; Ohnishi, K.; Rattenbury, N.J.; To. Saito; Sullivan, D.J.; Suzuki, D.; Sweatman, W.L.; Tristram, P.J.; Wada, K.; Yock, P.C.M.; MOA Collaboration, The; Szymański, M.K.; Soszyński, I.; Kubiak, M.; Poleski, R.; Ulaczyk, K.; Pietrzyński, G.; Wyrzykowski, Ł.; OGLE Collaboration, The; Choi, J.-Y.; Christie, G.W.; DePoy, D.L.; Dong, Subo; Drummond, J.; Gaudi, B.S.; Han, C.; Hung, L.-W.; Hwang, K.-H.; Lee, C.-U.; McCormick, J.; Moorhouse, D.; Natusch, T.; Nola, M.; Ofek, E.; Pogge, R.W.; Shin, I.-G.; Skowron, J.; ThornleY, G.; Yee, J.C.; Collaboration, The μFUN; Alsubai, K.A.; Bozza, V.; Browne, P.; Burgdorf, M.J.; Calchi Novati, S.; Dodds, P.; Dominik, M.; Finet, F.; Gerner, T.; Hardis, S.; Harpsøe, K.; Hinse, T....
Authors
A. Udalski
T. Sumi
D.P. Bennett
I.A. Bond
A. Gould
U.G. Jørgensen
C. Snodgrass
D. Dominis Prester
M.D. Albrow
F. Abe
C.S. Botzler
P. Chote
M. Freeman
A. Fukui
P. Harris
Y. Itow
C.H. Ling
K. Masuda
Y. Matsubara
N. Miyake
Y. Muraki
K. Ohnishi
N.J. Rattenbury
To. Saito
D.J. Sullivan
D. Suzuki
W.L. Sweatman
P.J. Tristram
K. Wada
P.C.M. Yock
The MOA Collaboration
M.K. Szymański
I. Soszyński
M. Kubiak
R. Poleski
K. Ulaczyk
G. Pietrzyński
Ł. Wyrzykowski
The OGLE Collaboration
J.-Y. Choi
G.W. Christie
D.L. DePoy
Subo Dong
J. Drummond
B.S. Gaudi
C. Han
L.-W. Hung
K.-H. Hwang
C.-U. Lee
J. McCormick
D. Moorhouse
T. Natusch
M. Nola
E. Ofek
R.W. Pogge
I.-G. Shin
J. Skowron
G. ThornleY
J.C. Yee
The μFUN Collaboration
K.A. Alsubai
V. Bozza
P. Browne
M.J. Burgdorf
S. Calchi Novati
P. Dodds
M. Dominik
F. Finet
T. Gerner
S. Hardis
K. Harpsøe
T.C. Hinse
M. Hundertmark
N. Kains
E. Kerins
C. Liebig
L. Mancini
M. Mathiasen
M.T. Penny
S. Proft
S. Rahvar
D. Ricci
G. Scarpetta
S. Schäfer
F. Schönebeck
Dr John Taylor j.k.taylor@keele.ac.uk
J. Surdej
J. Wambsganss
The MiNDSTEp Consortium
R.A. Street
D.M. Bramich
I.A. Steele
Y. Tsapras
The RoboNet Collaboration
K. Horne
J. Donatowicz
K.C. Sahu
E. Bachelet
V. Batista
T.G. Beatty
J.-P. Beaulieu
C.S. Bennett
C. Black
R. Bowens-Rubin
S. Brillant
J.A.R. Caldwell
A. Cassan
A.A. Cole
E. Corrales
C. Coutures
S. Dieters
P. Fouqué
J. Greenhill
C.B. Henderson
D. Kubas
J.-B. Marquette
R. Martin
J.W. Menzies
B. Shappee
A. Williams
D. Wouters
J. van Saders
R. Zellem
M. Zub
The PLANET Collaboration
Abstract
We analyze the planetary microlensing event MOA-2010-BLG-328. The best fit yields host and planetary masses of M h = 0.11 ± 0.01 M ? and M p = 9.2 ± 2.2 M ?, corresponding to a very late M dwarf and sub-Neptune-mass planet, respectively. The system lies at D L = 0.81 ± 0.10 kpc with projected separation r ? = 0.92 ± 0.16 AU. Because of the host's a priori unlikely close distance, as well as the unusual nature of the system, we consider the possibility that the microlens parallax signal, which determines the host mass and distance, is actually due to xallarap (source orbital motion) that is being misinterpreted as parallax. We show a result that favors the parallax solution, even given its close host distance. We show that future high-resolution astrometric measurements could decisively resolve the remaining ambiguity of these solutions.
Citation
Furusawa, K., Udalski, A., Sumi, T., Bennett, D., Bond, I., Gould, A., …Collaboration, T. P. (2013). MOA-2010-BLG-328Lb: A SUB-NEPTUNE ORBITING VERY LATE M DWARF?. Astrophysical Journal, 779(2), Article 91. https://doi.org/10.1088/0004-637X/779/2/91
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 27, 2013 |
Online Publication Date | Nov 26, 2013 |
Publication Date | Dec 20, 2013 |
Publicly Available Date | May 26, 2023 |
Journal | Astrophysical Journal |
Print ISSN | 0004-637X |
Publisher | American Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 779 |
Issue | 2 |
Article Number | 91 |
DOI | https://doi.org/10.1088/0004-637X/779/2/91 |
Keywords | gravitational lensing, micro, planetary systems |
Publisher URL | http://iopscience.iop.org/article/10.1088/0004-637X/779/2/91/meta |
Files
20180628_Furusawa_2013_ApJ_779_91.pdf
(1.6 Mb)
PDF
Publisher Licence URL
https://creativecommons.org/licenses/by-nc/4.0/
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