Reference system origin and scale realization within the future GNSS constellation “Kepler”
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Geodesy"
DOI: 10.1007/s00190-020-01441-0
Abstract: Currently, Global Navigation Satellite Systems (GNSS) do not contribute to the realization of origin and scale of combined global terrestrial reference frame (TRF) solutions due to present system design limitations. The future Galileo-like medium Earth… read more here.
Keywords: kepler; system; origin scale; realization ... See more keywords
The law of refraction and Kepler’s heuristics
Sign Up to like & getrecommendations! Published in 2019 at "Archive for History of Exact Sciences"
DOI: 10.1007/s00407-019-00236-w
Abstract: Johannes Kepler dedicated much of his work to discover a law for the refraction of light. Unfortunately, he formulated an incorrect law. Nevertheless, it was useful for anticipating the behavior of light in some specific… read more here.
Keywords: kepler heuristics; law; kepler; law refraction ... See more keywords
On the integration of Cid’s radial intermediary
Sign Up to like & getrecommendations! Published in 2021 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2020.11.025
Abstract: Abstract This paper deals with the integrations of homogeneous quasi-Keplerian Hamiltonians, that is, perturbed Kepler Hamiltonians which perturbation is of the form ∑ j = 2 N A j ∕ r j with A j… read more here.
Keywords: kepler; cid radial; integration cid; radial intermediary ... See more keywords
Original form of Kepler's Third Law and its misapplication in Propositions XXXII-XXXVII in Newton's Principia (Book I)
Sign Up to like & getrecommendations! Published in 2019 at "Heliyon"
DOI: 10.1016/j.heliyon.2019.e01274
Abstract: The original form of Kepler's Third Law contains a caveat regarding the requirement of small eccentricities – a fact that has not been incorporated by the traditional Newtonian derivations. This constraint is analyzed, and a… read more here.
Keywords: form kepler; kepler; law; kepler third ... See more keywords
Kepler Object of Interest Network. II. Photodynamical modelling of Kepler-9 over 8 years of transit observations
Sign Up to like & getrecommendations! Published in 2018 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201833436
Abstract: The Kepler Object of Interest Network (KOINet) is a multi-site network of telescopes around the globe organised to follow up transiting planet candidate KOIs with large transit timing variations (TTVs). Its main goal is to… read more here.
Keywords: network; kepler; transit; interest network ... See more keywords
Stellar magnetic activity and the butterfly diagram of Kepler-63
Sign Up to like & getrecommendations! Published in 2019 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201936219
Abstract: Context. The study of young solar type stars is fundamental for a better understanding of the magnetic activity of the Sun. As a planet in transit crosses in front of its host star, a darkspot… read more here.
Keywords: butterfly diagram; star; kepler; magnetic activity ... See more keywords
Accurata delineatio motuum stellae Martis: How Accurate Is Kepler’s Pretzel Diagram?
Sign Up to like & getrecommendations! Published in 2019 at "Isis"
DOI: 10.1086/706936
Abstract: In the first chapter of his Astronomia Nova, Kepler introduced a diagram that, he claimed, represents the path of Mars between 1580 and 1596, assuming a resting Earth. In the words of William H. Donahue,… read more here.
Keywords: accurata delineatio; motuum stellae; kepler; stellae martis ... See more keywords
Exploring formation scenarios for the exomoon candidate Kepler 1625b I
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1441
Abstract: If confirmed, the Neptune-size exomoon candidate in the Kepler 1625 system will be the first natural satellite outside our Solar System. Its characteristics are nothing alike we know for a satellite. Kepler 1625b I is… read more here.
Keywords: satellite; kepler 1625b; kepler; formation ... See more keywords
Near mean motion resonance of terrestrial planet pair induced by giant planet: application to Kepler-68 system
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1884
Abstract: In this work, we investigate configuration formation of two inner terrestrial planets near mean motion resonance (MMRs) induced by the perturbation of a distant gas-giant for the Kepler-68 system, by conducting thousands of numerical simulations.… read more here.
Keywords: system; terrestrial planets; kepler; giant planet ... See more keywords
A spectroscopic test of the rotational modulation origin of periodic Kepler photometric variability of A-type stars
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa2444
Abstract: High-precision space-based photometry obtained by the \emph{Kepler} and \emph{TESS} missions has revealed evidence of rotational modulation associated with main sequence (MS) A and late-B type stars. Generally, such variability in these objects is attributed to… read more here.
Keywords: kepler; variability; type; type stars ... See more keywords
Confirming known planetary trends using a photometrically selected Kepler sample
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa3921
Abstract: Statistical studies of exoplanets and the properties of their host stars have been critical to informing models of planet formation. Numerous trends have arisen in particular from the rich Kepler data set, including that exoplanets… read more here.
Keywords: sample; kepler; confirming known; trends using ... See more keywords