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 & 100 others 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, Khalid Al-Subai, 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 journalArticle

18 Citations (Scopus)

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.

Original languageEnglish
Article number91
JournalAstrophysical Journal
Volume779
Issue number2
DOIs
Publication statusPublished - 20 Dec 2013

Fingerprint

Neptune (planet)
Neptune
parallax
planetary mass
ambiguity
planets
orbits
planet
high resolution

Keywords

  • gravitational lensing: micro
  • planetary systems

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Furusawa, K., Udalski, A., Sumi, T., Bennett, D. P., Bond, I. A., Gould, A., ... Zub, M. (2013). MOA-2010-BLG-328LB: A sub-Neptune orbiting very late M dwarf? Astrophysical Journal, 779(2), [91]. https://doi.org/10.1088/0004-637X/779/2/91

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.; Prester, D. Dominis; 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.; Saito, To; Sullivan, D. J.; Suzuki, D.; Sweatman, W. L.; Tristram, P. J.; Wada, K.; Yock, P. C M; Szymański, M. K.; Soszyński, I.; Kubiak, M.; Poleski, R.; Ulaczyk, K.; Pietrzyński, G.; Wyrzykowski; 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.; Al-Subai, Khalid; Bozza, V.; Browne, P.; Burgdorf, M. J.; Novati, S. Calchi; Dodds, P.; Dominik, M.; Finet, F.; Gerner, T.; Hardis, S.; Harpsøe, K.; Hinse, T. C.; Hundertmark, M.; Kains, N.; Kerins, E.; Liebig, C.; Mancini, L.; Mathiasen, M.; Penny, M. T.; Proft, S.; Rahvar, S.; Ricci, D.; Scarpetta, G.; Schäfer, S.; Schönebeck, F.; Southworth, J.; Surdej, J.; Wambsganss, J.; Street, R. A.; Bramich, D. M.; Steele, I. A.; Tsapras, Y.; Horne, K.; Donatowicz, J.; Sahu, K. C.; Bachelet, E.; Batista, V.; Beatty, T. G.; Beaulieu, J. P.; Bennett, C. S.; Black, C.; Bowens-Rubin, R.; Brillant, S.; Caldwell, J. A R; Cassan, A.; Cole, A. A.; Corrales, E.; Coutures, C.; Dieters, S.; Fouqué, P.; Greenhill, J.; Henderson, C. B.; Kubas, D.; Marquette, J. B.; Martin, R.; Menzies, J. W.; Shappee, B.; Williams, A.; Wouters, D.; Van Saders, J.; Zellem, R.; Zub, M.

In: Astrophysical Journal, Vol. 779, No. 2, 91, 20.12.2013.

Research output: Contribution to journalArticle

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, Al-Subai, K, 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
Furusawa K, Udalski A, Sumi T, Bennett DP, Bond IA, Gould A et al. MOA-2010-BLG-328LB: A sub-Neptune orbiting very late M dwarf? Astrophysical Journal. 2013 Dec 20;779(2). 91. https://doi.org/10.1088/0004-637X/779/2/91
Furusawa, K. ; Udalski, A. ; Sumi, T. ; Bennett, D. P. ; Bond, I. A. ; Gould, A. ; Jørgensen, U. G. ; Snodgrass, C. ; Prester, D. Dominis ; 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. ; Saito, To ; Sullivan, D. J. ; Suzuki, D. ; Sweatman, W. L. ; Tristram, P. J. ; Wada, K. ; Yock, P. C M ; Szymański, M. K. ; Soszyński, I. ; Kubiak, M. ; Poleski, R. ; Ulaczyk, K. ; Pietrzyński, G. ; Wyrzykowski ; 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. ; Al-Subai, Khalid ; Bozza, V. ; Browne, P. ; Burgdorf, M. J. ; Novati, S. Calchi ; Dodds, P. ; Dominik, M. ; Finet, F. ; Gerner, T. ; Hardis, S. ; Harpsøe, K. ; Hinse, T. C. ; Hundertmark, M. ; Kains, N. ; Kerins, E. ; Liebig, C. ; Mancini, L. ; Mathiasen, M. ; Penny, M. T. ; Proft, S. ; Rahvar, S. ; Ricci, D. ; Scarpetta, G. ; Schäfer, S. ; Schönebeck, F. ; Southworth, J. ; Surdej, J. ; Wambsganss, J. ; Street, R. A. ; Bramich, D. M. ; Steele, I. A. ; Tsapras, Y. ; Horne, K. ; Donatowicz, J. ; Sahu, K. C. ; Bachelet, E. ; Batista, V. ; Beatty, T. G. ; Beaulieu, J. P. ; Bennett, C. S. ; Black, C. ; Bowens-Rubin, R. ; Brillant, S. ; Caldwell, J. A R ; Cassan, A. ; Cole, A. A. ; Corrales, E. ; Coutures, C. ; Dieters, S. ; Fouqué, P. ; Greenhill, J. ; Henderson, C. B. ; Kubas, D. ; Marquette, J. B. ; Martin, R. ; Menzies, J. W. ; Shappee, B. ; Williams, A. ; Wouters, D. ; Van Saders, J. ; Zellem, R. ; Zub, M. / MOA-2010-BLG-328LB : A sub-Neptune orbiting very late M dwarf?. In: Astrophysical Journal. 2013 ; Vol. 779, No. 2.
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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.",
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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 - Al-Subai, Khalid

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

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

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

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VL - 779

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

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ER -