MOA-2010-BLG-328LB: A sub-Neptune orbiting very late M dwarf?

K. Furusawa; 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; M. K. Szymański; I. Soszyński; M. Kubiak; R. Poleski; K. Ulaczyk; G. Pietrzyński; Wyrzykowski; 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; 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; J. Southworth; J. Surdej; J. Wambsganss; R. A. Street; D. M. Bramich; I. A. Steele; Y. Tsapras; 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

doi:10.1088/0004-637X/779/2/91

MOA-2010-BLG-328LB: A sub-Neptune orbiting very late M dwarf?

K. Furusawa, 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. MatsubaraN. 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, M. K. Szymański, I. Soszyński, M. Kubiak, R. Poleski, K. Ulaczyk, G. Pietrzyński, Wyrzykowski, 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, 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, J. Southworth, J. Surdej, J. Wambsganss, R. A. Street, D. M. Bramich, I. A. Steele, Y. Tsapras, 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

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

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 _Ȯ 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.

Original language	English (US)
Article number	91
Journal	Astrophysical Journal
Volume	779
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/779/2/91
State	Published - Dec 20 2013
Externally published	Yes

Keywords

gravitational lensing: micro
planetary systems

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/0004-637X/779/2/91

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Furusawa, K., Udalski, A., Sumi, T., Bennett, D. P., Bond, I. A., Gould, A., Jørgensen, U. G., Snodgrass, C., Prester, D. D., Albrow, M. D., Abe, F., Botzler, C. S., Chote, P., Freeman, M., Fukui, A., Harris, P., Itow, Y., Ling, C. H., Masuda, K., ... Zub, M. (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

Furusawa, K, Udalski, A, Sumi, T, Bennett, DP, Bond, IA, Gould, A, Jørgensen, UG, Snodgrass, C, Prester, DD, Albrow, MD, Abe, F, Botzler, CS, Chote, P, Freeman, M, Fukui, A, Harris, P, Itow, Y, Ling, CH, Masuda, K, Matsubara, Y, Miyake, N, Muraki, Y, Ohnishi, K, Rattenbury, NJ, Saito, T, Sullivan, DJ, Suzuki, D, Sweatman, WL, Tristram, PJ, Wada, K, Yock, PCM, Szymański, MK, Soszyński, I, Kubiak, M, Poleski, R, Ulaczyk, K, Pietrzyński, G, Wyrzykowski, Choi, JY, Christie, GW, Depoy, DL, Dong, S, Drummond, J, Gaudi, BS, Han, C, Hung, LW, Hwang, KH, Lee, CU, McCormick, J, Moorhouse, D, Natusch, T, Nola, M, Ofek, E, Pogge, RW, Shin, IG, Skowron, J, Thornley, G, Yee, JC, Alsubai, KA, Bozza, V, Browne, P, Burgdorf, MJ, Novati, SC, Dodds, P, Dominik, M, Finet, F, Gerner, T, Hardis, S, Harpsøe, K, Hinse, TC, Hundertmark, M, Kains, N, Kerins, E, Liebig, C, Mancini, L, Mathiasen, M, Penny, MT, Proft, S, Rahvar, S, Ricci, D, Scarpetta, G, Schäfer, S, Schönebeck, F, Southworth, J, Surdej, J, Wambsganss, J, Street, RA, Bramich, DM, Steele, IA, Tsapras, Y, Horne, K, Donatowicz, J, Sahu, KC, Bachelet, E, Batista, V, Beatty, TG, Beaulieu, JP, Bennett, CS, Black, C, Bowens-Rubin, R, Brillant, S, Caldwell, JAR, Cassan, A, Cole, AA, Corrales, E, Coutures, C, Dieters, S, Fouqué, P, Greenhill, J, Henderson, CB, Kubas, D, Marquette, JB, Martin, R, Menzies, JW, Shappee, B, Williams, A, Wouters, D, Van Saders, J, Zellem, R & Zub, M 2013, 'MOA-2010-BLG-328LB: A sub-Neptune orbiting very late M dwarf?', Astrophysical Journal, vol. 779, no. 2, 91. https://doi.org/10.1088/0004-637X/779/2/91

@article{b31a235a910a4282856cce25607e4e97,

title = "MOA-2010-BLG-328LB: A sub-Neptune orbiting very late M dwarf?",

abstract = "We analyze the planetary microlensing event MOA-2010-BLG-328. The best fit yields host and planetary masses of Mh = 0.11 ± 0.01 M Ȯ and Mp = 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.",

keywords = "gravitational lensing: micro, planetary systems",

author = "K. Furusawa and A. Udalski and T. Sumi and Bennett, {D. P.} and Bond, {I. A.} and A. Gould and J{\o}rgensen, {U. G.} and C. Snodgrass and Prester, {D. Dominis} and Albrow, {M. D.} and F. Abe and Botzler, {C. S.} and P. Chote and M. Freeman and A. Fukui and P. Harris and Y. Itow and Ling, {C. H.} and K. Masuda and Y. Matsubara and N. Miyake and Y. Muraki and K. Ohnishi and Rattenbury, {N. J.} and To Saito and Sullivan, {D. J.} and D. Suzuki and Sweatman, {W. L.} and Tristram, {P. J.} and K. Wada and Yock, {P. C.M.} and Szyma{\'n}ski, {M. K.} and I. Soszy{\'n}ski and M. Kubiak and R. Poleski and K. Ulaczyk and G. Pietrzy{\'n}ski and Wyrzykowski and Choi, {J. Y.} and Christie, {G. W.} and Depoy, {D. L.} and Subo Dong and J. Drummond and Gaudi, {B. S.} and C. Han and Hung, {L. W.} and Hwang, {K. H.} and Lee, {C. U.} and J. McCormick and D. Moorhouse and T. Natusch and M. Nola and E. Ofek and Pogge, {R. W.} and Shin, {I. G.} and J. Skowron and G. Thornley and Yee, {J. C.} and Alsubai, {K. A.} and V. Bozza and P. Browne and Burgdorf, {M. J.} and Novati, {S. Calchi} and P. Dodds and M. Dominik and F. Finet and T. Gerner and S. Hardis and K. Harps{\o}e and Hinse, {T. C.} and M. Hundertmark and N. Kains and E. Kerins and C. Liebig and L. Mancini and M. Mathiasen and Penny, {M. T.} and S. Proft and S. Rahvar and D. Ricci and G. Scarpetta and S. Sch{\"a}fer and F. Sch{\"o}nebeck and J. Southworth and J. Surdej and J. Wambsganss and Street, {R. A.} and Bramich, {D. M.} and Steele, {I. A.} and Y. Tsapras and K. Horne and J. Donatowicz and Sahu, {K. C.} and E. Bachelet and V. Batista and Beatty, {T. G.} and Beaulieu, {J. P.} and Bennett, {C. S.} and C. Black and R. Bowens-Rubin and S. Brillant and Caldwell, {J. A.R.} and A. Cassan and Cole, {A. A.} and E. Corrales and C. Coutures and S. Dieters and P. Fouqu{\'e} and J. Greenhill and Henderson, {C. B.} and D. Kubas and Marquette, {J. B.} and R. Martin and Menzies, {J. W.} and B. Shappee and A. Williams and D. Wouters and {Van Saders}, J. and R. Zellem and M. Zub",

year = "2013",

month = dec,

day = "20",

doi = "10.1088/0004-637X/779/2/91",

language = "English (US)",

volume = "779",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2",

}

TY - JOUR

T1 - MOA-2010-BLG-328LB

T2 - A sub-Neptune orbiting very late M dwarf?

AU - Furusawa, K.

AU - Udalski, A.

AU - Sumi, T.

AU - Bennett, D. P.

AU - Bond, I. A.

AU - Gould, A.

AU - Jørgensen, U. G.

AU - Snodgrass, C.

AU - Prester, D. Dominis

AU - Albrow, M. D.

AU - Abe, F.

AU - Botzler, C. S.

AU - Chote, P.

AU - Freeman, M.

AU - Fukui, A.

AU - Harris, P.

AU - Itow, Y.

AU - Ling, C. H.

AU - Masuda, K.

AU - Matsubara, Y.

AU - Miyake, N.

AU - Muraki, Y.

AU - Ohnishi, K.

AU - Rattenbury, N. J.

AU - Saito, To

AU - Sullivan, D. J.

AU - Suzuki, D.

AU - Sweatman, W. L.

AU - Tristram, P. J.

AU - Wada, K.

AU - Yock, P. C.M.

AU - Szymański, M. K.

AU - Soszyński, I.

AU - Kubiak, M.

AU - Poleski, R.

AU - Ulaczyk, K.

AU - Pietrzyński, G.

AU - Wyrzykowski,

AU - Choi, J. Y.

AU - Christie, G. W.

AU - Depoy, D. L.

AU - Dong, Subo

AU - Drummond, J.

AU - Gaudi, B. S.

AU - Han, C.

AU - Hung, L. W.

AU - Hwang, K. H.

AU - Lee, C. U.

AU - McCormick, J.

AU - Moorhouse, D.

AU - Natusch, T.

AU - Nola, M.

AU - Ofek, E.

AU - Pogge, R. W.

AU - Shin, I. G.

AU - Skowron, J.

AU - Thornley, G.

AU - Yee, J. C.

AU - Alsubai, K. A.

AU - Bozza, V.

AU - Browne, P.

AU - Burgdorf, M. J.

AU - Novati, S. Calchi

AU - Dodds, P.

AU - Dominik, M.

AU - Finet, F.

AU - Gerner, T.

AU - Hardis, S.

AU - Harpsøe, K.

AU - Hinse, T. C.

AU - Hundertmark, M.

AU - Kains, N.

AU - Kerins, E.

AU - Liebig, C.

AU - Mancini, L.

AU - Mathiasen, M.

AU - Penny, M. T.

AU - Proft, S.

AU - Rahvar, S.

AU - Ricci, D.

AU - Scarpetta, G.

AU - Schäfer, S.

AU - Schönebeck, F.

AU - Southworth, J.

AU - Surdej, J.

AU - Wambsganss, J.

AU - Street, R. A.

AU - Bramich, D. M.

AU - Steele, I. A.

AU - Tsapras, Y.

AU - Horne, K.

AU - Donatowicz, J.

AU - Sahu, K. C.

AU - Bachelet, E.

AU - Batista, V.

AU - Beatty, T. G.

AU - Beaulieu, J. P.

AU - Bennett, C. S.

AU - Black, C.

AU - Bowens-Rubin, R.

AU - Brillant, S.

AU - Caldwell, J. A.R.

AU - Cassan, A.

AU - Cole, A. A.

AU - Corrales, E.

AU - Coutures, C.

AU - Dieters, S.

AU - Fouqué, P.

AU - Greenhill, J.

AU - Henderson, C. B.

AU - Kubas, D.

AU - Marquette, J. B.

AU - Martin, R.

AU - Menzies, J. W.

AU - Shappee, B.

AU - Williams, A.

AU - Wouters, D.

AU - Van Saders, J.

AU - Zellem, R.

AU - Zub, M.

PY - 2013/12/20

Y1 - 2013/12/20

N2 - We analyze the planetary microlensing event MOA-2010-BLG-328. The best fit yields host and planetary masses of Mh = 0.11 ± 0.01 M Ȯ and Mp = 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.

AB - We analyze the planetary microlensing event MOA-2010-BLG-328. The best fit yields host and planetary masses of Mh = 0.11 ± 0.01 M Ȯ and Mp = 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.

KW - gravitational lensing: micro

KW - planetary systems

UR - http://www.scopus.com/inward/record.url?scp=84890062483&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84890062483&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/779/2/91

DO - 10.1088/0004-637X/779/2/91

M3 - Article

AN - SCOPUS:84890062483

SN - 0004-637X

VL - 779

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 91

ER -

MOA-2010-BLG-328LB: A sub-Neptune orbiting very late M dwarf?

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