MOA-2010-BLG-523: "Failed Planet" = RS CVn Star

A. Gould; J. C. Yee; I. A. Bond; A. Udalski; C. Han; U. G. Jorgensen; J. Greenhill; Y. Tsapras; M. H. Pinsonneault; T. Bensby; W. Allen; L. A. Almeida; M. Bos; G. W. Christie; D. L. DePoy; Subo Dong; B. S. Gaudi; L-W Hung; F. Jablonski; C-U Lee; J. McCormick; D. Moorhouse; J. A. Munoz; T. Natusch; M. Nola; R. W. Pogge; J. Skowron; G. Thornley; F. Abe; D. P. Bennett; C. S. Botzler; P. Chote; M. Freeman; A. Fukui; K. Furusawa; P. Harris; Y. Itow; C. H. Ling; K. Masuda; Y. Matsubara; N. Miyake; K. Ohnishi; N. J. Rattenbury; To. Saito; D. J. Sullivan; T. Sumi; D. Suzuki; W. L. Sweatman; P. J. Tristram; K. Wada; P. C. M. Yock; M. K. Szymanski; I. Soszynski; M. Kubiak; R. Poleski; K. Ulaczyk; G. Pietrzynski; L. Wyrzykowski; K. A. Alsubai; V. Bozza; P. Browne; M. J. Burgdorf; S. Calchi Novati; P. Dodds; M. Dominik; F. Finet; T. Gerner; S. Hardis; K. Harpsoe; F. V. Hessman; T. C. Hinse; M. Hundertmark; N. Kains; E. Kerins; C. Liebig; L. Mancini; M. Mathiasen; M. T. Penny; S. Proft; S. Rahvar; D. Ricci; K. C. Sahu; G. Scarpetta; S. Schaefer; F. Schoenebeck; C. Snodgrass; J. Southworth; J. Surdej; J. Wambsganss; R. A. Street; K. Horne; D. M. Bramich; I. A. Steele; M. D. Albrow; E. Bachelet; V. Batista; T. G. Beatty; J-P Beaulieu; C. S. Bennett; R. Bowens-Rubin; S. Brillant; J. A. R. Caldwell; A. Cassan; A. A. Cole; E. Corrales; C. Coutures; S. Dieters; D. Dominis Prester; J. Donatowicz; P. Fouque; C. B. Henderson; D. Kubas; J-B Marquette; R. Martin; J. W. Menzies; B. Shappee; A. Williams; J. van Saders; M. Zub

doi:10.1088/0004-637X/763/2/141

MOA-2010-BLG-523: "Failed Planet" = RS CVn Star

A. Gould^*, J. C. Yee, I. A. Bond, A. Udalski, C. Han, U. G. Jorgensen, J. Greenhill, Y. Tsapras, M. H. Pinsonneault, T. Bensby, W. Allen, L. A. Almeida, M. Bos, G. W. Christie, D. L. DePoy, Subo Dong, B. S. Gaudi, L-W Hung, F. Jablonski, C-U LeeJ. McCormick, D. Moorhouse, J. A. Munoz, T. Natusch, M. Nola, R. W. Pogge, J. Skowron, G. Thornley, F. Abe, D. P. Bennett, C. S. Botzler, P. Chote, M. Freeman, A. Fukui, K. Furusawa, P. Harris, Y. Itow, C. H. Ling, K. Masuda, Y. Matsubara, N. Miyake, K. Ohnishi, N. J. Rattenbury, To. Saito, D. J. Sullivan, T. Sumi, D. Suzuki, W. L. Sweatman, P. J. Tristram, K. Wada, P. C. M. Yock, M. K. Szymanski, I. Soszynski, M. Kubiak, R. Poleski, K. Ulaczyk, G. Pietrzynski, L. Wyrzykowski, K. A. Alsubai, V. Bozza, P. Browne, M. J. Burgdorf, S. Calchi Novati, P. Dodds, M. Dominik, F. Finet, T. Gerner, S. Hardis, K. Harpsoe, F. V. Hessman, T. C. Hinse, M. Hundertmark, N. Kains, E. Kerins, C. Liebig, L. Mancini, M. Mathiasen, M. T. Penny, S. Proft, S. Rahvar, D. Ricci, K. C. Sahu, G. Scarpetta, S. Schaefer, F. Schoenebeck, C. Snodgrass, J. Southworth, J. Surdej, J. Wambsganss, R. A. Street, K. Horne, D. M. Bramich, I. A. Steele, M. D. Albrow, E. Bachelet, V. Batista, T. G. Beatty, J-P Beaulieu, C. S. Bennett, R. Bowens-Rubin, S. Brillant, J. A. R. Caldwell, A. Cassan, A. A. Cole, E. Corrales, C. Coutures, S. Dieters, D. Dominis Prester, J. Donatowicz, P. Fouque, C. B. Henderson, D. Kubas, J-B Marquette, R. Martin, J. W. Menzies, B. Shappee, A. Williams, J. van Saders, M. Zub

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract

The Galactic bulge source MOA-2010-BLG-523S exhibited short-term deviations from a standard microlensing light curve near the peak of an A(max) similar to 265 high-magnification microlensing event. The deviations originally seemed consistent with expectations for a planetary companion to the principal lens. We combine long-term photometric monitoring with a previously published high-resolution spectrum taken near peak to demonstrate that this is an RS CVn variable, so that planetary microlensing is not required to explain the light-curve deviations. This is the first spectroscopically confirmed RS CVn star discovered in the Galactic bulge.

Original language	English
Article number	141
Number of pages	11
Journal	Astrophysical Journal
Volume	763
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/763/2/141
Publication status	Published - 1 Feb 2013

Keywords

Gravitational lensing: micro
Planetary systems
Starspots
Stars: variables: general
Gravitational lensing experiment
Galactic bulge
Microlensing events
High-magnification
Variable-stars
Dwarf stars
Systems
Photometry
Rotation
Catalog

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10.1088/0004-637X/763/2/141

gould2013astrophysj141
© 2013. The American Astronomical Society. All rights reserved
Final published version, 594 KB

Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014
Horne, K. D. (PI)
Science & Technology Facilities Council
1/10/11 → 31/03/12
Project: Standard

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Gould, A., Yee, J. C., Bond, I. A., Udalski, A., Han, C., Jorgensen, U. G., Greenhill, J., Tsapras, Y., Pinsonneault, M. H., Bensby, T., Allen, W., Almeida, L. A., Bos, M., Christie, G. W., DePoy, D. L., Dong, S., Gaudi, B. S., Hung, L.-W., Jablonski, F., ... Zub, M. (2013). MOA-2010-BLG-523: "Failed Planet" = RS CVn Star. Astrophysical Journal, 763(2), Article 141. https://doi.org/10.1088/0004-637X/763/2/141

@article{b0e125caae2a467cada07c0a435ce519,

title = "MOA-2010-BLG-523: {"}Failed Planet{"} = RS CVn Star",

abstract = "The Galactic bulge source MOA-2010-BLG-523S exhibited short-term deviations from a standard microlensing light curve near the peak of an A(max) similar to 265 high-magnification microlensing event. The deviations originally seemed consistent with expectations for a planetary companion to the principal lens. We combine long-term photometric monitoring with a previously published high-resolution spectrum taken near peak to demonstrate that this is an RS CVn variable, so that planetary microlensing is not required to explain the light-curve deviations. This is the first spectroscopically confirmed RS CVn star discovered in the Galactic bulge.",

keywords = "Gravitational lensing: micro, Planetary systems, Starspots, Stars: variables: general, Gravitational lensing experiment, Galactic bulge, Microlensing events, High-magnification, Variable-stars, Dwarf stars, Systems, Photometry, Rotation, Catalog",

author = "A. Gould and Yee, {J. C.} and Bond, {I. A.} and A. Udalski and C. Han and Jorgensen, {U. G.} and J. Greenhill and Y. Tsapras and Pinsonneault, {M. H.} and T. Bensby and W. Allen and Almeida, {L. A.} and M. Bos and Christie, {G. W.} and DePoy, {D. L.} and Subo Dong and Gaudi, {B. S.} and L-W Hung and F. Jablonski and C-U Lee and J. McCormick and D. Moorhouse and Munoz, {J. A.} and T. Natusch and M. Nola and Pogge, {R. W.} and J. Skowron and G. Thornley and F. Abe and Bennett, {D. P.} and Botzler, {C. S.} and P. Chote and M. Freeman and A. Fukui and K. Furusawa and P. Harris and Y. Itow and Ling, {C. H.} and K. Masuda and Y. Matsubara and N. Miyake and K. Ohnishi and Rattenbury, {N. J.} and To. Saito and Sullivan, {D. J.} and T. Sumi and D. Suzuki and Sweatman, {W. L.} and Tristram, {P. J.} and K. Wada and Yock, {P. C. M.} and Szymanski, {M. K.} and I. Soszynski and M. Kubiak and R. Poleski and K. Ulaczyk and G. Pietrzynski and L. Wyrzykowski and Alsubai, {K. A.} and V. Bozza and P. Browne and Burgdorf, {M. J.} and {Calchi Novati}, S. and P. Dodds and M. Dominik and F. Finet and T. Gerner and S. Hardis and K. Harpsoe and Hessman, {F. V.} 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 Sahu, {K. C.} and G. Scarpetta and S. Schaefer and F. Schoenebeck and C. Snodgrass and J. Southworth and J. Surdej and J. Wambsganss and Street, {R. A.} and K. Horne and Bramich, {D. M.} and Steele, {I. A.} and Albrow, {M. D.} and E. Bachelet and V. Batista and Beatty, {T. G.} and J-P Beaulieu and Bennett, {C. S.} 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 Prester, {D. Dominis} and J. Donatowicz and P. Fouque and Henderson, {C. B.} and D. Kubas and J-B Marquette and R. Martin and Menzies, {J. W.} and B. Shappee and A. Williams and {van Saders}, J. and M. Zub",

year = "2013",

month = feb,

day = "1",

doi = "10.1088/0004-637X/763/2/141",

language = "English",

volume = "763",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2",

}

Gould, A, Yee, JC, Bond, IA, Udalski, A, Han, C, Jorgensen, UG, Greenhill, J, Tsapras, Y, Pinsonneault, MH, Bensby, T, Allen, W, Almeida, LA, Bos, M, Christie, GW, DePoy, DL, Dong, S, Gaudi, BS, Hung, L-W, Jablonski, F, Lee, C-U, McCormick, J, Moorhouse, D, Munoz, JA, Natusch, T, Nola, M, Pogge, RW, Skowron, J, Thornley, G, Abe, F, Bennett, DP, Botzler, CS, Chote, P, Freeman, M, Fukui, A, Furusawa, K, Harris, P, Itow, Y, Ling, CH, Masuda, K, Matsubara, Y, Miyake, N, Ohnishi, K, Rattenbury, NJ, Saito, T, Sullivan, DJ, Sumi, T, Suzuki, D, Sweatman, WL, Tristram, PJ, Wada, K, Yock, PCM, Szymanski, MK, Soszynski, I, Kubiak, M, Poleski, R, Ulaczyk, K, Pietrzynski, G, Wyrzykowski, L, Alsubai, KA, Bozza, V, Browne, P, Burgdorf, MJ, Calchi Novati, S, Dodds, P, Dominik, M, Finet, F, Gerner, T, Hardis, S, Harpsoe, K, Hessman, FV, Hinse, TC, Hundertmark, M, Kains, N, Kerins, E, Liebig, C, Mancini, L, Mathiasen, M, Penny, MT, Proft, S, Rahvar, S, Ricci, D, Sahu, KC, Scarpetta, G, Schaefer, S, Schoenebeck, F, Snodgrass, C, Southworth, J, Surdej, J, Wambsganss, J, Street, RA, Horne, K, Bramich, DM, Steele, IA, Albrow, MD, Bachelet, E, Batista, V, Beatty, TG, Beaulieu, J-P, Bennett, CS, Bowens-Rubin, R, Brillant, S, Caldwell, JAR, Cassan, A, Cole, AA, Corrales, E, Coutures, C, Dieters, S, Prester, DD, Donatowicz, J, Fouque, P, Henderson, CB, Kubas, D, Marquette, J-B, Martin, R, Menzies, JW, Shappee, B, Williams, A, van Saders, J & Zub, M 2013, 'MOA-2010-BLG-523: "Failed Planet" = RS CVn Star', Astrophysical Journal, vol. 763, no. 2, 141. https://doi.org/10.1088/0004-637X/763/2/141

TY - JOUR

T1 - MOA-2010-BLG-523

T2 - "Failed Planet" = RS CVn Star

AU - Gould, A.

AU - Yee, J. C.

AU - Bond, I. A.

AU - Udalski, A.

AU - Han, C.

AU - Jorgensen, U. G.

AU - Greenhill, J.

AU - Tsapras, Y.

AU - Pinsonneault, M. H.

AU - Bensby, T.

AU - Allen, W.

AU - Almeida, L. A.

AU - Bos, M.

AU - Christie, G. W.

AU - DePoy, D. L.

AU - Dong, Subo

AU - Gaudi, B. S.

AU - Hung, L-W

AU - Jablonski, F.

AU - Lee, C-U

AU - McCormick, J.

AU - Moorhouse, D.

AU - Munoz, J. A.

AU - Natusch, T.

AU - Nola, M.

AU - Pogge, R. W.

AU - Skowron, J.

AU - Thornley, G.

AU - Abe, F.

AU - Bennett, D. P.

AU - Botzler, C. S.

AU - Chote, P.

AU - Freeman, M.

AU - Fukui, A.

AU - Furusawa, K.

AU - Harris, P.

AU - Itow, Y.

AU - Ling, C. H.

AU - Masuda, K.

AU - Matsubara, Y.

AU - Miyake, N.

AU - Ohnishi, K.

AU - Rattenbury, N. J.

AU - Saito, To.

AU - Sullivan, D. J.

AU - Sumi, T.

AU - Suzuki, D.

AU - Sweatman, W. L.

AU - Tristram, P. J.

AU - Wada, K.

AU - Yock, P. C. M.

AU - Szymanski, M. K.

AU - Soszynski, I.

AU - Kubiak, M.

AU - Poleski, R.

AU - Ulaczyk, K.

AU - Pietrzynski, G.

AU - Wyrzykowski, L.

AU - Alsubai, K. A.

AU - Bozza, V.

AU - Browne, P.

AU - Burgdorf, M. J.

AU - Calchi Novati, S.

AU - Dodds, P.

AU - Dominik, M.

AU - Finet, F.

AU - Gerner, T.

AU - Hardis, S.

AU - Harpsoe, K.

AU - Hessman, F. V.

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 - Sahu, K. C.

AU - Scarpetta, G.

AU - Schaefer, S.

AU - Schoenebeck, F.

AU - Snodgrass, C.

AU - Southworth, J.

AU - Surdej, J.

AU - Wambsganss, J.

AU - Street, R. A.

AU - Horne, K.

AU - Bramich, D. M.

AU - Steele, I. A.

AU - Albrow, M. D.

AU - Bachelet, E.

AU - Batista, V.

AU - Beatty, T. G.

AU - Beaulieu, J-P

AU - Bennett, C. S.

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 - Prester, D. Dominis

AU - Donatowicz, J.

AU - Fouque, P.

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 - van Saders, J.

AU - Zub, M.

PY - 2013/2/1

Y1 - 2013/2/1

N2 - The Galactic bulge source MOA-2010-BLG-523S exhibited short-term deviations from a standard microlensing light curve near the peak of an A(max) similar to 265 high-magnification microlensing event. The deviations originally seemed consistent with expectations for a planetary companion to the principal lens. We combine long-term photometric monitoring with a previously published high-resolution spectrum taken near peak to demonstrate that this is an RS CVn variable, so that planetary microlensing is not required to explain the light-curve deviations. This is the first spectroscopically confirmed RS CVn star discovered in the Galactic bulge.

AB - The Galactic bulge source MOA-2010-BLG-523S exhibited short-term deviations from a standard microlensing light curve near the peak of an A(max) similar to 265 high-magnification microlensing event. The deviations originally seemed consistent with expectations for a planetary companion to the principal lens. We combine long-term photometric monitoring with a previously published high-resolution spectrum taken near peak to demonstrate that this is an RS CVn variable, so that planetary microlensing is not required to explain the light-curve deviations. This is the first spectroscopically confirmed RS CVn star discovered in the Galactic bulge.

KW - Gravitational lensing: micro

KW - Planetary systems

KW - Starspots

KW - Stars: variables: general

KW - Gravitational lensing experiment

KW - Galactic bulge

KW - Microlensing events

KW - High-magnification

KW - Variable-stars

KW - Dwarf stars

KW - Systems

KW - Photometry

KW - Rotation

KW - Catalog

U2 - 10.1088/0004-637X/763/2/141

DO - 10.1088/0004-637X/763/2/141

M3 - Article

SN - 0004-637X

VL - 763

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 141

ER -

MOA-2010-BLG-523: "Failed Planet" = RS CVn Star

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