TASTE. II. A new observational study of transit time variations in HAT-P-13b

V. Nascimbeni; G. Piotto; L. R. Bedin; M. Damasso; L. Malavolta; L. Borsato

doi:10.1051/0004-6361/201116830

TASTE. II. A new observational study of transit time variations in HAT-P-13b

Earth and Planetary Astrophysics 2015-05-28 v2 Instrumentation and Methods for Astrophysics

Authors: V. Nascimbeni , G. Piotto , L. R. Bedin , M. Damasso , L. Malavolta , L. Borsato

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

TASTE (The Asiago Search for Transit timing variations of Exoplanets) project is collecting high-precision, short-cadence light curves for a selected sample of transiting exoplanets. It has been claimed that the hot jupiter HAT-P-13b suddenly deviated from a linear ephemeris by $\sim 20$ min, implying that there is a perturber in the system. Using five new transits, we discuss the plausibility of this transit time variation (TTV), and show that a periodic signal should not be excluded. More follow-up observations are required to constrain the mass and the orbit of the hypothetical perturber.

Keywords

transit time variations HAT-P-13b hot Jupiter exoplanet dynamics light curves perturber ephemeris

Cite

@article{arxiv.1105.4603,
  title  = {TASTE. II. A new observational study of transit time variations in HAT-P-13b},
  author = {V. Nascimbeni and G. Piotto and L. R. Bedin and M. Damasso and L. Malavolta and L. Borsato},
  journal= {arXiv preprint arXiv:1105.4603},
  year   = {2015}
}

Comments

5 pages, 2 figures, 2 tables; accepted for publication in A&A on May 22, 2011; typos corrected

TASTE. II. A new observational study of transit time variations in HAT-P-13b

Abstract

Keywords

Cite

Comments

Related papers