The transiting system GJ1214: high-precision defocused transit observations and a search for evidence of transit timing variation

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Standard

The transiting system GJ1214 : high-precision defocused transit observations and a search for evidence of transit timing variation. / Harpsøe, Kennet Bomann West; Hardis, S.; Hinse, T.C.; Jørgensen, Uffe Gråe; Mancini, L.; Southworth, J.; Alsubai, K.A.; Bozza, V.; Browne, P.; Burgdorf, M. J.; Novati, S. Calchi; Dodds, P.; Dominik, M.; Fang, X. -S.; Finet, F.; Gerner, T.; Gu, S. -H; Hundertmark, M.; Jessen-Hansen, Jens; Kains, N.; Kerins, E.; Kjeldsen, H.; Liebig, C.; Lund, M.N.; Lundkvist, Mia; Mathiasen, M.; Nesvorny, D.; Nikolov, N.; Penny, M. T.; Proft, S.; Rahvar, S.; Ricci, D.; Sahu, K. C.; Scarpetta, G.; Schaefer, S.; Schoenebeck, F.; Snodgrass, C.; Skottfelt, Jesper Fælling; Surdej, J.; Tregloan-Reed, J.; Wertz, O.

I: Astronomy & Astrophysics, Bind 549, A10, 2013.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Harpsøe, KBW, Hardis, S, Hinse, TC, Jørgensen, UG, Mancini, L, Southworth, J, Alsubai, KA, Bozza, V, Browne, P, Burgdorf, MJ, Novati, SC, Dodds, P, Dominik, M, Fang, X-S, Finet, F, Gerner, T, Gu, S-H, Hundertmark, M, Jessen-Hansen, J, Kains, N, Kerins, E, Kjeldsen, H, Liebig, C, Lund, MN, Lundkvist, M, Mathiasen, M, Nesvorny, D, Nikolov, N, Penny, MT, Proft, S, Rahvar, S, Ricci, D, Sahu, KC, Scarpetta, G, Schaefer, S, Schoenebeck, F, Snodgrass, C, Skottfelt, JF, Surdej, J, Tregloan-Reed, J & Wertz, O 2013, 'The transiting system GJ1214: high-precision defocused transit observations and a search for evidence of transit timing variation', Astronomy & Astrophysics, bind 549, A10. https://doi.org/10.1051/0004-6361/201219996

APA

Harpsøe, K. B. W., Hardis, S., Hinse, T. C., Jørgensen, U. G., Mancini, L., Southworth, J., Alsubai, K. A., Bozza, V., Browne, P., Burgdorf, M. J., Novati, S. C., Dodds, P., Dominik, M., Fang, X. -S., Finet, F., Gerner, T., Gu, S. -H., Hundertmark, M., Jessen-Hansen, J., ... Wertz, O. (2013). The transiting system GJ1214: high-precision defocused transit observations and a search for evidence of transit timing variation. Astronomy & Astrophysics, 549, [A10]. https://doi.org/10.1051/0004-6361/201219996

Vancouver

Harpsøe KBW, Hardis S, Hinse TC, Jørgensen UG, Mancini L, Southworth J o.a. The transiting system GJ1214: high-precision defocused transit observations and a search for evidence of transit timing variation. Astronomy & Astrophysics. 2013;549. A10. https://doi.org/10.1051/0004-6361/201219996

Author

Harpsøe, Kennet Bomann West ; Hardis, S. ; Hinse, T.C. ; Jørgensen, Uffe Gråe ; Mancini, L. ; Southworth, J. ; Alsubai, K.A. ; Bozza, V. ; Browne, P. ; Burgdorf, M. J. ; Novati, S. Calchi ; Dodds, P. ; Dominik, M. ; Fang, X. -S. ; Finet, F. ; Gerner, T. ; Gu, S. -H ; Hundertmark, M. ; Jessen-Hansen, Jens ; Kains, N. ; Kerins, E. ; Kjeldsen, H. ; Liebig, C. ; Lund, M.N. ; Lundkvist, Mia ; Mathiasen, M. ; Nesvorny, D. ; Nikolov, N. ; Penny, M. T. ; Proft, S. ; Rahvar, S. ; Ricci, D. ; Sahu, K. C. ; Scarpetta, G. ; Schaefer, S. ; Schoenebeck, F. ; Snodgrass, C. ; Skottfelt, Jesper Fælling ; Surdej, J. ; Tregloan-Reed, J. ; Wertz, O. / The transiting system GJ1214 : high-precision defocused transit observations and a search for evidence of transit timing variation. I: Astronomy & Astrophysics. 2013 ; Bind 549.

Bibtex

@article{89b387be539f4098af99cf47c788ff2f,
title = "The transiting system GJ1214: high-precision defocused transit observations and a search for evidence of transit timing variation",
abstract = "Aims. We present 11 high-precision photometric transit observations of the transiting super-Earth planet GJ 1214 b. Combining these data with observations from other authors, we investigate the ephemeris for possible signs of transit timing variations (TTVs) using a Bayesian approach. Methods. The observations were obtained using telescope-defocusing techinques, and achieve a high precision with random errors in the photometry as low as 1 mmag per point. To investigate the possiblity of TTVs in the light curve, we calculate the overall probability of a TTV signal using Bayesian methods. Results. The observations are used to determine the photometric parameters and the physical properties of the GJ 1214 system. Our results are in good agreement with published values. Individual times of mid-transit are measured with uncertainites as low as 10 s, allowing us to reduce the uncertainity in the orbital period by a factor or two. Conclusions. A Bayesian analysis reveals that it is highly improbable that the observed transit times is explained by TTV caused by a planet in the nominal habitable zone, when compared with the simpler alternative of a linear ephemeris.",
author = "Harps{\o}e, {Kennet Bomann West} and S. Hardis and T.C. Hinse and J{\o}rgensen, {Uffe Gr{\aa}e} and L. Mancini and J. Southworth and K.A. Alsubai and V. Bozza and P. Browne and Burgdorf, {M. J.} and Novati, {S. Calchi} and P. Dodds and M. Dominik and Fang, {X. -S.} and F. Finet and T. Gerner and Gu, {S. -H} and M. Hundertmark and Jens Jessen-Hansen and N. Kains and E. Kerins and H. Kjeldsen and C. Liebig and M.N. Lund and Mia Lundkvist and M. Mathiasen and D. Nesvorny and N. Nikolov 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 Skottfelt, {Jesper F{\ae}lling} and J. Surdej and J. Tregloan-Reed and O. Wertz",
year = "2013",
doi = "10.1051/0004-6361/201219996",
language = "English",
volume = "549",
journal = "Astronomy & Astrophysics",
issn = "0004-6361",
publisher = "E D P Sciences",

}

RIS

TY - JOUR

T1 - The transiting system GJ1214

T2 - high-precision defocused transit observations and a search for evidence of transit timing variation

AU - Harpsøe, Kennet Bomann West

AU - Hardis, S.

AU - Hinse, T.C.

AU - Jørgensen, Uffe Gråe

AU - Mancini, L.

AU - Southworth, J.

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 - Fang, X. -S.

AU - Finet, F.

AU - Gerner, T.

AU - Gu, S. -H

AU - Hundertmark, M.

AU - Jessen-Hansen, Jens

AU - Kains, N.

AU - Kerins, E.

AU - Kjeldsen, H.

AU - Liebig, C.

AU - Lund, M.N.

AU - Lundkvist, Mia

AU - Mathiasen, M.

AU - Nesvorny, D.

AU - Nikolov, N.

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 - Skottfelt, Jesper Fælling

AU - Surdej, J.

AU - Tregloan-Reed, J.

AU - Wertz, O.

PY - 2013

Y1 - 2013

N2 - Aims. We present 11 high-precision photometric transit observations of the transiting super-Earth planet GJ 1214 b. Combining these data with observations from other authors, we investigate the ephemeris for possible signs of transit timing variations (TTVs) using a Bayesian approach. Methods. The observations were obtained using telescope-defocusing techinques, and achieve a high precision with random errors in the photometry as low as 1 mmag per point. To investigate the possiblity of TTVs in the light curve, we calculate the overall probability of a TTV signal using Bayesian methods. Results. The observations are used to determine the photometric parameters and the physical properties of the GJ 1214 system. Our results are in good agreement with published values. Individual times of mid-transit are measured with uncertainites as low as 10 s, allowing us to reduce the uncertainity in the orbital period by a factor or two. Conclusions. A Bayesian analysis reveals that it is highly improbable that the observed transit times is explained by TTV caused by a planet in the nominal habitable zone, when compared with the simpler alternative of a linear ephemeris.

AB - Aims. We present 11 high-precision photometric transit observations of the transiting super-Earth planet GJ 1214 b. Combining these data with observations from other authors, we investigate the ephemeris for possible signs of transit timing variations (TTVs) using a Bayesian approach. Methods. The observations were obtained using telescope-defocusing techinques, and achieve a high precision with random errors in the photometry as low as 1 mmag per point. To investigate the possiblity of TTVs in the light curve, we calculate the overall probability of a TTV signal using Bayesian methods. Results. The observations are used to determine the photometric parameters and the physical properties of the GJ 1214 system. Our results are in good agreement with published values. Individual times of mid-transit are measured with uncertainites as low as 10 s, allowing us to reduce the uncertainity in the orbital period by a factor or two. Conclusions. A Bayesian analysis reveals that it is highly improbable that the observed transit times is explained by TTV caused by a planet in the nominal habitable zone, when compared with the simpler alternative of a linear ephemeris.

U2 - 10.1051/0004-6361/201219996

DO - 10.1051/0004-6361/201219996

M3 - Journal article

VL - 549

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

M1 - A10

ER -

ID: 49746988