High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26

John Southworth; T. C. Hinse; M. Burgdorf; S. Calchi Novati; M. Dominik; P. Galianni; T. Gerner; E. Giannini; S.-H. Gu; M. Hundertmark; U. G. Jørgensen; D. Juncher; E. Kerins; L. Mancini; M. Rabus; D. Ricci; S. Schäfer; J. Skottfelt; J. Tregloan-Reed; X.-B. Wang; O. Wertz; K. A. Alsubai; J. M. Andersen; V. Bozza; D. M. Bramich; P. Browne; S. Ciceri; G. D'Ago; Y. Damerdji; C. Diehl; P. Dodds; A. Elyiv; X.-S. Fang; F. Finet; R. Figuera Jaimes; S. Hardis; K. Harpsøe; J. Jessen-Hansen; N. Kains; H. Kjeldsen; H. Korhonen; C. Liebig; M. N. Lund; M. Lundkvist; M. Mathiasen; M. T. Penny; A. Popovas; S. Prof.; S. Rahvar; K. Sahu; G. Scarpetta; R. W. Schmidt; F. Schönebeck; C. Snodgrass; R. A. Street; J. Surdej; Y. Tsapras; C. Vilela

doi:10.1093/mnras/stu1492

High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26

John Southworth, T. C. Hinse, M. Burgdorf, S. Calchi Novati, M. Dominik, P. Galianni, T. Gerner, E. Giannini, S.-H. Gu, M. Hundertmark, U. G. Jørgensen, D. Juncher, E. Kerins, L. Mancini, M. Rabus, D. Ricci, S. Schäfer, J. Skottfelt, J. Tregloan-Reed, X.-B. WangO. Wertz, K. A. Alsubai, J. M. Andersen, V. Bozza, D. M. Bramich, P. Browne, S. Ciceri, G. D'Ago, Y. Damerdji, C. Diehl, P. Dodds, A. Elyiv, X.-S. Fang, F. Finet, R. Figuera Jaimes, S. Hardis, K. Harpsøe, J. Jessen-Hansen, N. Kains, H. Kjeldsen, H. Korhonen, C. Liebig, M. N. Lund, M. Lundkvist, M. Mathiasen, M. T. Penny, A. Popovas, S. Prof., S. Rahvar, K. Sahu, G. Scarpetta, R. W. Schmidt, F. Schönebeck, C. Snodgrass, R. A. Street, J. Surdej, Y. Tsapras, C. Vilela

School of Physics and Astronomy

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

Abstract

We present time series photometric observations of 13 transits in the planetary systems WASP-24, WASP-25 and WASP-26. All three systems have orbital obliquity measurements, WASP-24 and WASP-26 have been observed with Spitzer, and WASP-25 was previously comparatively neglected. Our light curves were obtained using the telescope-defocussing method and have scatters of 0.5–1.2 mmag relative to their best-fitting geometric models. We use these data to measure the physical properties and orbital ephemerides of the systems to high precision, finding that our improved measurements are in good agreement with previous studies. High-resolution Lucky Imaging observations of all three targets show no evidence for faint stars close enough to contaminate our photometry. We confirm the eclipsing nature of the star closest to WASP-24 and present the detection of a detached eclipsing binary within 4.25 arcmin of WASP-26.

Original language	English
Pages (from-to)	776-789
Journal	Monthly Notices of the Royal Astronomical Society
Volume	444
Issue number	1
Early online date	20 Aug 2014
DOIs	https://doi.org/10.1093/mnras/stu1492
Publication status	Published - 11 Oct 2014

Keywords

Stars: fundamental parameters
Planetary systems
Stars: individual: WASP-24
Stars: individual: WASP-25
Stars: individual: WASP-26

Access to Document

10.1093/mnras/stu1492

Dominik_2014_MNRAS_High
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Final published version, 2.28 MB

Cite this

Southworth, J., Hinse, T. C., Burgdorf, M., Calchi Novati, S., Dominik, M., Galianni, P., Gerner, T., Giannini, E., Gu, S.-H., Hundertmark, M., Jørgensen, U. G., Juncher, D., Kerins, E., Mancini, L., Rabus, M., Ricci, D., Schäfer, S., Skottfelt, J., Tregloan-Reed, J., ... Vilela, C. (2014). High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26. Monthly Notices of the Royal Astronomical Society, 444(1), 776-789. https://doi.org/10.1093/mnras/stu1492

@article{a6ff2f52afc8482c8c1cd543c753223b,

title = "High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26",

abstract = "We present time series photometric observations of 13 transits in the planetary systems WASP-24, WASP-25 and WASP-26. All three systems have orbital obliquity measurements, WASP-24 and WASP-26 have been observed with Spitzer, and WASP-25 was previously comparatively neglected. Our light curves were obtained using the telescope-defocussing method and have scatters of 0.5–1.2 mmag relative to their best-fitting geometric models. We use these data to measure the physical properties and orbital ephemerides of the systems to high precision, finding that our improved measurements are in good agreement with previous studies. High-resolution Lucky Imaging observations of all three targets show no evidence for faint stars close enough to contaminate our photometry. We confirm the eclipsing nature of the star closest to WASP-24 and present the detection of a detached eclipsing binary within 4.25 arcmin of WASP-26. ",

keywords = "Stars: fundamental parameters, Planetary systems, Stars: individual: WASP-24, Stars: individual: WASP-25, Stars: individual: WASP-26",

author = "John Southworth and Hinse, {T. C.} and M. Burgdorf and {Calchi Novati}, S. and M. Dominik and P. Galianni and T. Gerner and E. Giannini and S.-H. Gu and M. Hundertmark and J{\o}rgensen, {U. G.} and D. Juncher and E. Kerins and L. Mancini and M. Rabus and D. Ricci and S. Sch{\"a}fer and J. Skottfelt and J. Tregloan-Reed and X.-B. Wang and O. Wertz and Alsubai, {K. A.} and Andersen, {J. M.} and V. Bozza and Bramich, {D. M.} and P. Browne and S. Ciceri and G. D'Ago and Y. Damerdji and C. Diehl and P. Dodds and A. Elyiv and X.-S. Fang and F. Finet and {Figuera Jaimes}, R. and S. Hardis and K. Harps{\o}e and J. Jessen-Hansen and N. Kains and H. Kjeldsen and H. Korhonen and C. Liebig and Lund, {M. N.} and M. Lundkvist and M. Mathiasen and Penny, {M. T.} and A. Popovas and S. Prof. and S. Rahvar and K. Sahu and G. Scarpetta and Schmidt, {R. W.} and F. Sch{\"o}nebeck and C. Snodgrass and Street, {R. A.} and J. Surdej and Y. Tsapras and C. Vilela",

note = "The research leading to these results has received funding from the European Community's Seventh Framework Programme (FP7/2007-2013/) under grant agreement nos. 229517 and 268421. This publication was supported by grants NPRP 09-476-1-078 and NPRP X-019-1-006 from Qatar National Research Fund (a member of Qatar Foundation). TCH acknowledges financial support from the Korea Research Council for Fundamental Science and Technology (KRCF) through the Young Research Scientist Fellowship Programme and is supported by the KASI (Korea Astronomy and Space Science Institute) grant 2012-1-410-02/2013-9-400-00. SG, XW and XF acknowledge the support from NSFC under the grant no. 10873031. The research is supported by the ASTERISK project (ASTERoseismic Investigations with SONG and Kepler) funded by the European Research Council (grant agreement no. 267864). DR, YD, AE, FF (ARC), OW (FNRS research fellow) and J Surdej acknowledge support from the Communaut{\'e} fran{\c c}aise de Belgique – Actions de recherche concert{\'e}es – Acad{\'e}mie Wallonie-Europe. ",

year = "2014",

month = oct,

day = "11",

doi = "10.1093/mnras/stu1492",

language = "English",

volume = "444",

pages = "776--789",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "1",

}

Southworth, J, Hinse, TC, Burgdorf, M, Calchi Novati, S, Dominik, M, Galianni, P, Gerner, T, Giannini, E, Gu, S-H, Hundertmark, M, Jørgensen, UG, Juncher, D, Kerins, E, Mancini, L, Rabus, M, Ricci, D, Schäfer, S, Skottfelt, J, Tregloan-Reed, J, Wang, X-B, Wertz, O, Alsubai, KA, Andersen, JM, Bozza, V, Bramich, DM, Browne, P, Ciceri, S, D'Ago, G, Damerdji, Y, Diehl, C, Dodds, P, Elyiv, A, Fang, X-S, Finet, F, Figuera Jaimes, R, Hardis, S, Harpsøe, K, Jessen-Hansen, J, Kains, N, Kjeldsen, H, Korhonen, H, Liebig, C, Lund, MN, Lundkvist, M, Mathiasen, M, Penny, MT, Popovas, A, Prof., S, Rahvar, S, Sahu, K, Scarpetta, G, Schmidt, RW, Schönebeck, F, Snodgrass, C, Street, RA, Surdej, J, Tsapras, Y & Vilela, C 2014, 'High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26', Monthly Notices of the Royal Astronomical Society, vol. 444, no. 1, pp. 776-789. https://doi.org/10.1093/mnras/stu1492

TY - JOUR

T1 - High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26

AU - Southworth, John

AU - Hinse, T. C.

AU - Burgdorf, M.

AU - Calchi Novati, S.

AU - Dominik, M.

AU - Galianni, P.

AU - Gerner, T.

AU - Giannini, E.

AU - Gu, S.-H.

AU - Hundertmark, M.

AU - Jørgensen, U. G.

AU - Juncher, D.

AU - Kerins, E.

AU - Mancini, L.

AU - Rabus, M.

AU - Ricci, D.

AU - Schäfer, S.

AU - Skottfelt, J.

AU - Tregloan-Reed, J.

AU - Wang, X.-B.

AU - Wertz, O.

AU - Alsubai, K. A.

AU - Andersen, J. M.

AU - Bozza, V.

AU - Bramich, D. M.

AU - Browne, P.

AU - Ciceri, S.

AU - D'Ago, G.

AU - Damerdji, Y.

AU - Diehl, C.

AU - Dodds, P.

AU - Elyiv, A.

AU - Fang, X.-S.

AU - Finet, F.

AU - Figuera Jaimes, R.

AU - Hardis, S.

AU - Harpsøe, K.

AU - Jessen-Hansen, J.

AU - Kains, N.

AU - Kjeldsen, H.

AU - Korhonen, H.

AU - Liebig, C.

AU - Lund, M. N.

AU - Lundkvist, M.

AU - Mathiasen, M.

AU - Penny, M. T.

AU - Popovas, A.

AU - Prof., S.

AU - Rahvar, S.

AU - Sahu, K.

AU - Scarpetta, G.

AU - Schmidt, R. W.

AU - Schönebeck, F.

AU - Snodgrass, C.

AU - Street, R. A.

AU - Surdej, J.

AU - Tsapras, Y.

AU - Vilela, C.

N1 - The research leading to these results has received funding from the European Community's Seventh Framework Programme (FP7/2007-2013/) under grant agreement nos. 229517 and 268421. This publication was supported by grants NPRP 09-476-1-078 and NPRP X-019-1-006 from Qatar National Research Fund (a member of Qatar Foundation). TCH acknowledges financial support from the Korea Research Council for Fundamental Science and Technology (KRCF) through the Young Research Scientist Fellowship Programme and is supported by the KASI (Korea Astronomy and Space Science Institute) grant 2012-1-410-02/2013-9-400-00. SG, XW and XF acknowledge the support from NSFC under the grant no. 10873031. The research is supported by the ASTERISK project (ASTERoseismic Investigations with SONG and Kepler) funded by the European Research Council (grant agreement no. 267864). DR, YD, AE, FF (ARC), OW (FNRS research fellow) and J Surdej acknowledge support from the Communauté française de Belgique – Actions de recherche concertées – Académie Wallonie-Europe.

PY - 2014/10/11

Y1 - 2014/10/11

N2 - We present time series photometric observations of 13 transits in the planetary systems WASP-24, WASP-25 and WASP-26. All three systems have orbital obliquity measurements, WASP-24 and WASP-26 have been observed with Spitzer, and WASP-25 was previously comparatively neglected. Our light curves were obtained using the telescope-defocussing method and have scatters of 0.5–1.2 mmag relative to their best-fitting geometric models. We use these data to measure the physical properties and orbital ephemerides of the systems to high precision, finding that our improved measurements are in good agreement with previous studies. High-resolution Lucky Imaging observations of all three targets show no evidence for faint stars close enough to contaminate our photometry. We confirm the eclipsing nature of the star closest to WASP-24 and present the detection of a detached eclipsing binary within 4.25 arcmin of WASP-26.

AB - We present time series photometric observations of 13 transits in the planetary systems WASP-24, WASP-25 and WASP-26. All three systems have orbital obliquity measurements, WASP-24 and WASP-26 have been observed with Spitzer, and WASP-25 was previously comparatively neglected. Our light curves were obtained using the telescope-defocussing method and have scatters of 0.5–1.2 mmag relative to their best-fitting geometric models. We use these data to measure the physical properties and orbital ephemerides of the systems to high precision, finding that our improved measurements are in good agreement with previous studies. High-resolution Lucky Imaging observations of all three targets show no evidence for faint stars close enough to contaminate our photometry. We confirm the eclipsing nature of the star closest to WASP-24 and present the detection of a detached eclipsing binary within 4.25 arcmin of WASP-26.

KW - Stars: fundamental parameters

KW - Planetary systems

KW - Stars: individual: WASP-24

KW - Stars: individual: WASP-25

KW - Stars: individual: WASP-26

UR - http://adsabs.harvard.edu/abs/2014MNRAS.444..776S

UR - http://mnras.oxfordjournals.org/content/444/1/776/suppl/DC1

U2 - 10.1093/mnras/stu1492

DO - 10.1093/mnras/stu1492

M3 - Article

SN - 0035-8711

VL - 444

SP - 776

EP - 789

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Planet population statistics: Planet population statistics from fully-deterministic microlensing campaigns

Wide Area Search for Planets: Project support for the Wide Area Search for Planets

Cite this

High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 and WASP-26

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Planet population statistics: Planet population statistics from fully-deterministic microlensing campaigns

Wide Area Search for Planets: Project support for the Wide Area Search for Planets

Cite this