High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 andWASP-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, Khalid Al-Subai, 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

Research output: Contribution to journalArticle

31 Citations (Scopus)

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 andWASP-26 have been observed with Spitzer, andWASP-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 languageEnglish
Pages (from-to)776-789
Number of pages14
JournalMonthly Notices of the Royal Astronomical Society
Volume444
Issue number1
DOIs
Publication statusPublished - 26 Jul 2014

Fingerprint

obliquity
photometry
physical property
telescopes
time series
ephemerides
stars
orbitals
planetary systems
transit
light curve
physical properties
high resolution
detection
method

Keywords

  • Fundamental parameters
  • Planetary systems
  • Stars: individual: WASP-24
  • Stars: individual: WASP-25
  • Stars: individual: WASP-26

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Southworth, J., Hinse, T. C., Burgdorf, M., Calchi Novati, S., Dominik, M., Galianni, P., ... Vilela, C. (2014). High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 andWASP-26*. Monthly Notices of the Royal Astronomical Society, 444(1), 776-789. https://doi.org/10.1093/mnras/stu1492

High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 andWASP-26*. / Southworth, John; 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.; Wang, X. B.; Wertz, O.; Al-Subai, Khalid; Andersen, J. M.; Bozza, V.; Bramich, D. M.; 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, M. N.; Lundkvist, M.; Mathiasen, M.; Penny, M. T.; Popovas, A.; Prof, S.; Rahvar, S.; Sahu, K.; Scarpetta, G.; Schmidt, R. W.; Schönebeck, F.; Snodgrass, C.; Street, R. A.; Surdej, J.; Tsapras, Y.; Vilela, C.

In: Monthly Notices of the Royal Astronomical Society, Vol. 444, No. 1, 26.07.2014, p. 776-789.

Research output: Contribution to journalArticle

Southworth, J, Hinse, TC, Burgdorf, M, Calchi Novati, S, Dominik, M, Galianni, P, Gerner, T, Giannini, E, Gu, SH, Hundertmark, M, Jørgensen, UG, Juncher, D, Kerins, E, Mancini, L, Rabus, M, Ricci, D, Schäfer, S, Skottfelt, J, Tregloan-Reed, J, Wang, XB, Wertz, O, Al-Subai, K, Andersen, JM, Bozza, V, Bramich, DM, Browne, P, Ciceri, S, D'Ago, G, Damerdji, Y, Diehl, C, Dodds, P, Elyiv, A, Fang, XS, 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 andWASP-26*', Monthly Notices of the Royal Astronomical Society, vol. 444, no. 1, pp. 776-789. https://doi.org/10.1093/mnras/stu1492
Southworth J, Hinse TC, Burgdorf M, Calchi Novati S, Dominik M, Galianni P et al. High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 andWASP-26*. Monthly Notices of the Royal Astronomical Society. 2014 Jul 26;444(1):776-789. https://doi.org/10.1093/mnras/stu1492
Southworth, John ; 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. ; Wang, X. B. ; Wertz, O. ; Al-Subai, Khalid ; Andersen, J. M. ; Bozza, V. ; Bramich, D. M. ; 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, M. N. ; Lundkvist, M. ; Mathiasen, M. ; Penny, M. T. ; Popovas, A. ; Prof, S. ; Rahvar, S. ; Sahu, K. ; Scarpetta, G. ; Schmidt, R. W. ; Schönebeck, F. ; Snodgrass, C. ; Street, R. A. ; Surdej, J. ; Tsapras, Y. ; Vilela, C. / High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 andWASP-26*. In: Monthly Notices of the Royal Astronomical Society. 2014 ; Vol. 444, No. 1. pp. 776-789.
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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 andWASP-26 have been observed with Spitzer, andWASP-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.",
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T1 - High-precision photometry by telescope defocussing - VI. WASP-24, WASP-25 andWASP-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 - Al-Subai, Khalid

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.

PY - 2014/7/26

Y1 - 2014/7/26

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 andWASP-26 have been observed with Spitzer, andWASP-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 andWASP-26 have been observed with Spitzer, andWASP-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 - Fundamental parameters

KW - Planetary systems

KW - Stars: individual: WASP-24

KW - Stars: individual: WASP-25

KW - Stars: individual: WASP-26

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