Stellar radius of kepler 90
Bi-Elliptic Transfer and Stability Analysis of Lagrange Points
Abstract This paper reviews the science behind orbital mechanics and acts as a summary to the most commonly used orbital maneuvers. The analysis details Hohmann transfer orbits and bi
Binary Analysis and Period Study of the Long-Period, High
The radial velocity curve and the Kepler light curve were used in PHOEBE to perform binary analysis which determined the stellar and orbital parameters. Gaia multi-color photometry was
Kepler''s laws of planetary motion
The usefulness of Kepler''s laws extends to the motions of natural and artificial satellites, as well as to stellar systems and extrasolar planets. As formulated by Kepler, the laws do not, of course, take into account the
Updated Masses for the Gas Giants in the Eight
To determine accurate masses and orbital parameters for planets g and h, we combined 34 radial velocities (RVs) of Kepler-90, collected over a decade, with the Kepler transit data. We jointly modeled the transit times of
Binary star systems are complex astronomical objects − a
This reduction means we can obtain fundamental properties – stellar masses, radii, temperatures and luminosities – for every eclipsing binary star ever observed within a month or two.
Enhancing the detection of low-energy M dwarf flares:
Context. Stellar flares are powerful bursts of electromagnetic radiation that are triggered by magnetic reconnection in the chromosphere of stars. They occur frequently and intensely on
The Gap-Giant Association: Are Planets Hiding in the Gaps?
In this paper, we assess whether undiscovered planets might occupy these gaps in systems with outer giants. For each of the four relevant systems – Kepler-48, Kepler-65, Kepler-90, and
Magnetic activity of RS CVn stars based on TESS and
Aims. Understanding flare activity in RS CVn stars is crucial for elucidating their magnetic activity properties. This study aims to conduct a detailed statistical analysis of stellar flare
Metallicities of M Dwarf Planet Host Stars from Kepler, K2,
In this study, we derived stellar metallicities and oxygen abundances for 45 M dwarf stars (with 65 exoplanets) using the near-infrared high-resolution spectra from the SDSS APOGEE survey
