Results 1 to 10 of about 10,149 (153)
The Nature and Origins of Sub-Neptune Size Planets. [PDF]
J Geophys Res Planets, 2021 Abstract Planets intermediate in size between the Earth and Neptune, and orbiting closer to their host stars than Mercury does the Sun, are the most common type of planet revealed by exoplanet surveys over the last quarter century. Results from NASA's Kepler mission have revealed a bimodality in the radius distribution of these objects, with a relative
Bean JL, Raymond SN, Owen JE.
europepmc +2 more sources
Testing asteroseismology with Gaia DR2: hierarchical models of the Red Clump [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 Asteroseismology provides fundamental stellar parameters independent of distance, but subject to systematics under calibration. Gaia DR2 has provided parallaxes for a billion stars, which are offset by a parallax zero-point.
Oliver Hall, Guy Davies, Andrea Miglio
exaly +5 more sources
Monthly Notices of the Royal Astronomical Society, 2018 Advances in asteroseismology of solar-like stars, now provide a unique method to estimate the stellar inclination $i_{\star}$. This enables to evaluate the spin-orbit angle of transiting planetary systems, in a complementary fashion to the Rossiter ...
Shoya Kamiaka +2 more
exaly +3 more sources
Equatorially trapped Rossby waves in radiative stars
Astronomische Nachrichten, Volume 344, Issue 10, December 2023., 2023 Abstract Observations by recent space missions reported the detection of Rossby waves (r‐modes) in light curves of many stars (mostly A, B, and F spectral types) with outer radiative envelope. This article aims to study the theoretical dynamics of Rossby‐type waves in such stars. Hydrodynamic equations in a rotating frame were split into horizontal and
Mariam Albekioni +4 more
wiley +1 more source
Astronomische Nachrichten, Volume 344, Issue 5, June 2023., 2023 Abstract We developed, tested, and validated a new Fast, Robust, and Automated (FRA) tool to detect solar‐like oscillations. FRA is based on the detection and measurement of the frequency of maximum oscillation power νmax$$ {\nu}_{\mathrm{max}} $$, without relying on the detection of a regular frequency spacing to guide the search.
Charlotte Gehan +3 more
wiley +1 more source
WIREs Data Mining and Knowledge Discovery, Volume 12, Issue 5, September/October 2022., 2022 This work presents a text‐mining‐based scientometric analysis of the scientific output in the last three decades regarding the use of artificial intelligence and machine learning in the fields of astronomy and astrophysics. Abstract Since the beginning of the 21st century, the fields of astronomy and astrophysics have experienced significant growth at ...
José‐Víctor Rodríguez +2 more
wiley +1 more source
Localizing flares to understand stellar magnetic fields and space weather in exo‐systems
Astronomische Nachrichten, Volume 343, Issue 4, May 2022., 2022 Abstract Stars are uniform spheres, but only to first order. The way in which stellar rotation and magnetism break this symmetry places important observational constraints on stellar magnetic fields, and factors in the assessment of the impact of stellar activity on exoplanet atmospheres.
Ekaterina Ilin +2 more
wiley +1 more source
Detection and Optimization of Traffic Networks Based on Voronoi Diagram
Discrete Dynamics in Nature and Society, Volume 2021, Issue 1, 2021., 2021 Traffic peak is an important parameter of modern transport systems. It can be used to calculate the indices of road congestion, which has become a common problem worldwide. With accurate information about traffic peaks, transportation administrators can make better decisions to optimize the traffic networks and therefore enhance the performance of ...
Rui Tao +6 more
wiley +1 more source
Magneto-asteroseismology of massive magnetic pulsators [PDF]
, 2016 Simultaneously and coherently studying the large-scale magnetic field and the stellar pulsations of a massive star provides strong complementary diagnostics suitable for detailed stellar modelling.
Aerts, C., Buysschaert, B., Neiner, C.
core +17 more sources
Stellar Oscillations Network Group [PDF]
, 2007 Stellar Oscillations Network Group (SONG) is an initiative aimed at designing and building a network of 1m-class telescopes dedicated to asteroseismology and planet hunting.
Arentoft T +15 more
core +1 more source