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FAST INVERSION METHOD FOR DETERMINATION OF PLANETARY PARAMETERS FROM TRANSIT TIMING VARIATIONS [PDF]

open access: yesThe Astrophysical Journal, 2010
The Transit Timing Variation (TTV) method relies on monitoring changes in timing of transits of known exoplanets. Non-transiting planets in the system can be inferred from TTVs by their gravitational interaction with the transiting planet. The TTV method is sensitive to low-mass planets that cannot be detected by other means.
Nesvorny, David, Beauge, Cristian
openaire   +6 more sources

Alleviating the transit timing variation bias in transit surveys [PDF]

open access: yesAstronomy & Astrophysics, 2021
Transit timing variations (TTVs) can provide useful information for systems observed by transit, as they allow us to put constraints on the masses and eccentricities of the observed planets, or even to constrain the existence of non-transiting companions.
A. Leleu   +5 more
openaire   +2 more sources

Transit Depth Variations Reveal TOI-216 b to be a Super-puff

open access: yesThe Astronomical Journal, 2023
The planets of the TOI-216 system have been previously observed to exhibit large transit-timing variations, which enabled precise mass characterization of both transiting planets.
Brendan J. McKee, Benjamin T. Montet
doaj   +1 more source

Application of transit timing variation method (TTV) to exoplanet system TrES-3 [PDF]

open access: yesAstronomical School’s Report, 2015
On the basis of the original photometric data, the light curves of several transits in the exoplanet system TrES-3 were simulated by Monte Carlo method. Using these curves, the estimates of precise values of mid-transit time were calculated to assess the possibility of finding new planets by timing method in already known exoplanet systems using ground-
Yu. Kuznyetsova   +4 more
openaire   +2 more sources

Detection of Earth-mass and super-Earth Trojan planets using transit timing variation method [PDF]

open access: yesCelestial Mechanics and Dynamical Astronomy, 2013
We have carried out an extensive study of the possibility of the detection of Earth-mass and super-Earth Trojan planets using transit timing variation method with the Kepler space telescope. We have considered a system consisting of a transiting Jovian-type planet in a short period orbit, and determined the induced variations in its transit timing due ...
Haghighipour, Nader   +2 more
openaire   +2 more sources

The Advantages of Global Photometric Models in Fitting Transit Variations

open access: yesThe Astronomical Journal, 2023
Estimation of planetary orbital and physical parameters from light-curve data relies heavily on the accurate interpretation of Transit Timing Variation (TTV) measurements.
Yair Judkovsky   +2 more
doaj   +1 more source

Constraining the Densities of the Three Kepler-289 Planets with Transit Timing Variations

open access: yesThe Astronomical Journal, 2023
Kepler-289 is a three-planet system containing two sub-Neptunes and one cool giant planet orbiting a young, Sun-like star. All three planets exhibit transit timing variations (TTVs), with both adjacent planet pairs having orbital periods close to the 2:1
Michael Greklek-McKeon   +6 more
doaj   +1 more source

On the detection of (habitable) super-Earths around low-mass stars using Kepler and transit timing variation method [PDF]

open access: yesCelestial Mechanics and Dynamical Astronomy, 2011
31 pages, 14 figures and a 30-panel figure appendix, accepted for publication in Celestial Mechanics and Dynamical Astronomy (special issue on extrasolar planets)
Haghighipour, Nader, Kirste, Sabrina
openaire   +2 more sources

TESS Timings of 31 Hot Jupiters with Ephemeris Uncertainties

open access: yesThe Astrophysical Journal Supplement Series, 2023
A precise transit ephemeris serves as the premise for follow-up exoplanet observations. We compare TESS Object of Interest (TOI) transit timings of 262 hot Jupiters with the archival ephemeris and find 31 of them having TOI timing offsets, among which ...
Su-Su Shan   +10 more
doaj   +1 more source

Cardiac output and stroke volume variation measured by the pulse wave transit time method: a comparison with an arterial pressure-based cardiac output system [PDF]

open access: yesJournal of Clinical Monitoring and Computing, 2018
Hemodynamic monitoring is mandatory for perioperative management of cardiac surgery. Recently, the estimated continuous cardiac output (esCCO) system, which can monitor cardiac output (CO) non-invasively based on pulse wave transit time, has been developed.
Takeshi Suzuki   +9 more
openaire   +2 more sources

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