TASTE: III. A homogeneous study of transit time variations in WASP-3b

V. Nascimbeni, A. Cunial, S. Murabito, P. V. Sada, A. Aparicio, G. Piotto, L. R. Bedin, A. P. Milone, A. Rosenberg, A. Zurlo, L. Borsato, M. Damasso, V. Granata, L. Malavolta

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The TASTE project is searching for low-mass planets with the transit timing variation (TTV) technique by gathering high-precision, short-cadence light curves for a selected sample of transiting exoplanets. It has been claimed that the "hot Jupiter" WASP-3b could be perturbed by a second planet. Presenting eleven new light curves (secured at the IAC80 and UDEM telescopes) and re-analyzing thirty-eight archival light curves in a homogeneous way, we show that new data do not confirm the previously claimed TTV signal. However, we bring evidence that measurements are not consistent with a constant orbital period, though no significant periodicity can be detected. Additional dynamical modeling and follow-up observations are planned to constrain the properties of the perturber or to put upper limits to it. We provide a refined ephemeris for WASP-3b and improved orbital/physical parameters. A contact eclipsing binary, serendipitously discovered among field stars, is reported here for the first time. © 2012 ESO.
Original languageEnglish
JournalAstronomy and Astrophysics
DOIs
Publication statusPublished - 1 Jan 2013
Externally publishedYes

Fingerprint

transit time
light curve
transit
planets
planet
time measurement
orbitals
star distribution
extrasolar planets
European Southern Observatory
Jupiter (planet)
Jupiter
periodicity
periodic variations
telescopes
modeling

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Nascimbeni, V. ; Cunial, A. ; Murabito, S. ; Sada, P. V. ; Aparicio, A. ; Piotto, G. ; Bedin, L. R. ; Milone, A. P. ; Rosenberg, A. ; Zurlo, A. ; Borsato, L. ; Damasso, M. ; Granata, V. ; Malavolta, L. / TASTE: III. A homogeneous study of transit time variations in WASP-3b. In: Astronomy and Astrophysics. 2013.
@article{a11b6bfe80a4454a8f22c569a26eb710,
title = "TASTE: III. A homogeneous study of transit time variations in WASP-3b",
abstract = "The TASTE project is searching for low-mass planets with the transit timing variation (TTV) technique by gathering high-precision, short-cadence light curves for a selected sample of transiting exoplanets. It has been claimed that the {"}hot Jupiter{"} WASP-3b could be perturbed by a second planet. Presenting eleven new light curves (secured at the IAC80 and UDEM telescopes) and re-analyzing thirty-eight archival light curves in a homogeneous way, we show that new data do not confirm the previously claimed TTV signal. However, we bring evidence that measurements are not consistent with a constant orbital period, though no significant periodicity can be detected. Additional dynamical modeling and follow-up observations are planned to constrain the properties of the perturber or to put upper limits to it. We provide a refined ephemeris for WASP-3b and improved orbital/physical parameters. A contact eclipsing binary, serendipitously discovered among field stars, is reported here for the first time. {\circledC} 2012 ESO.",
author = "V. Nascimbeni and A. Cunial and S. Murabito and Sada, {P. V.} and A. Aparicio and G. Piotto and Bedin, {L. R.} and Milone, {A. P.} and A. Rosenberg and A. Zurlo and L. Borsato and M. Damasso and V. Granata and L. Malavolta",
year = "2013",
month = "1",
day = "1",
doi = "10.1051/0004-6361/201219601s",
language = "English",
journal = "Astronomy and Astrophysics",
issn = "0004-6361",
publisher = "EDP Sciences",

}

Nascimbeni, V, Cunial, A, Murabito, S, Sada, PV, Aparicio, A, Piotto, G, Bedin, LR, Milone, AP, Rosenberg, A, Zurlo, A, Borsato, L, Damasso, M, Granata, V & Malavolta, L 2013, 'TASTE: III. A homogeneous study of transit time variations in WASP-3b', Astronomy and Astrophysics. https://doi.org/10.1051/0004-6361/201219601s

TASTE: III. A homogeneous study of transit time variations in WASP-3b. / Nascimbeni, V.; Cunial, A.; Murabito, S.; Sada, P. V.; Aparicio, A.; Piotto, G.; Bedin, L. R.; Milone, A. P.; Rosenberg, A.; Zurlo, A.; Borsato, L.; Damasso, M.; Granata, V.; Malavolta, L.

In: Astronomy and Astrophysics, 01.01.2013.

Research output: Contribution to journalArticle

TY - JOUR

T1 - TASTE: III. A homogeneous study of transit time variations in WASP-3b

AU - Nascimbeni, V.

AU - Cunial, A.

AU - Murabito, S.

AU - Sada, P. V.

AU - Aparicio, A.

AU - Piotto, G.

AU - Bedin, L. R.

AU - Milone, A. P.

AU - Rosenberg, A.

AU - Zurlo, A.

AU - Borsato, L.

AU - Damasso, M.

AU - Granata, V.

AU - Malavolta, L.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - The TASTE project is searching for low-mass planets with the transit timing variation (TTV) technique by gathering high-precision, short-cadence light curves for a selected sample of transiting exoplanets. It has been claimed that the "hot Jupiter" WASP-3b could be perturbed by a second planet. Presenting eleven new light curves (secured at the IAC80 and UDEM telescopes) and re-analyzing thirty-eight archival light curves in a homogeneous way, we show that new data do not confirm the previously claimed TTV signal. However, we bring evidence that measurements are not consistent with a constant orbital period, though no significant periodicity can be detected. Additional dynamical modeling and follow-up observations are planned to constrain the properties of the perturber or to put upper limits to it. We provide a refined ephemeris for WASP-3b and improved orbital/physical parameters. A contact eclipsing binary, serendipitously discovered among field stars, is reported here for the first time. © 2012 ESO.

AB - The TASTE project is searching for low-mass planets with the transit timing variation (TTV) technique by gathering high-precision, short-cadence light curves for a selected sample of transiting exoplanets. It has been claimed that the "hot Jupiter" WASP-3b could be perturbed by a second planet. Presenting eleven new light curves (secured at the IAC80 and UDEM telescopes) and re-analyzing thirty-eight archival light curves in a homogeneous way, we show that new data do not confirm the previously claimed TTV signal. However, we bring evidence that measurements are not consistent with a constant orbital period, though no significant periodicity can be detected. Additional dynamical modeling and follow-up observations are planned to constrain the properties of the perturber or to put upper limits to it. We provide a refined ephemeris for WASP-3b and improved orbital/physical parameters. A contact eclipsing binary, serendipitously discovered among field stars, is reported here for the first time. © 2012 ESO.

U2 - 10.1051/0004-6361/201219601s

DO - 10.1051/0004-6361/201219601s

M3 - Article

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

ER -