Results 21 to 30 of about 539 (174)

Detection and Optimization of Traffic Networks Based on Voronoi Diagram

open access: yesDiscrete 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

Highlights of Discoveries for δ Scuti Variable Stars From the Kepler Era

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The NASA Kepler and follow-on K2 mission (2009–2018) left a legacy of data and discoveries, finding thousands of exoplanets, and also obtaining high-precision long time-series data for hundreds of thousands of stars, including many types of pulsating ...
Joyce Ann Guzik
doaj   +1 more source

The potential of Shannon entropy to find the large separation of δ Scuti stars: The entropy spectrum

open access: yesFrontiers in Astronomy and Space Sciences, 2022
This study explores the use of Shannon entropy to find periodic patterns in the oscillation spectra of δ Scuti stars. We have developed a new diagnostic tool for detecting potential patterns that scans for minimal entropic states in the well-known ...
J. C. Suárez
doaj   +1 more source

A Mini-Review of Accreting Pulsating White Dwarfs

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The discovery in 1998 of a pulsating white dwarf in the cataclysmic variable GW Lib opened up a new avenue of exploration in the asteroseismology of white dwarfs.
Paula Szkody
doaj   +1 more source

Asteroseismology [PDF]

open access: yesPhysics Today, 2015
Pulsations known as starquakes can provide precious glimpses into a star’s interior—and clues to how the star will live and die.
openaire   +2 more sources

On the Detectability of Large-Scale Flows by Asteroseismology

open access: yesFrontiers in Astronomy and Space Sciences, 2020
Large-scale convective motions are an integral part of stellar interior dynamics and might play a relevant role in stellar dynamo processes. However, they are difficult to detect or characterize.
Markus Roth, Wiebke Herzberg
doaj   +1 more source

Saturn's Rings as a Seismograph to Probe Saturn's Internal Structure

open access: yesAGU Advances, Volume 1, Issue 2, June 2020., 2020
As it has already done for Earth, the Sun, and the stars, seismology has the potential to radically change the way the interiors of giant planets are studied. In a sequence of events foreseen by only a few, observations of Saturn's rings by the Cassini spacecraft have rapidly broken ground on giant planet seismology. Gravity directly couples the planet'
Christopher R. Mankovich
wiley   +1 more source

Helio- and asteroseismology [PDF]

open access: yesProceedings of the International Astronomical Union, 2001
AbstractObservations of solar and stellar oscillations are providing detailed information about stellar interiors. In the case of the Sun the set of observed frequencies is sufficiently detailed and accurate that the properties of the solar interior, such as sound speed, density and internal rotation, can be inferred with substantial precision and ...
openaire   +2 more sources

Pulsating stars harbouring planets

open access: yesEPJ Web of Conferences, 2013
Why bother with asteroseismology while studying exoplanets? There are several answers to this question. Asteroseismology and exoplanetary sciences have much in common and the synergy between the two opens up new aspects in both fields.
Moya A.
doaj   +1 more source

Pulsating stars and the Virtual Observatory

open access: yesEPJ Web of Conferences, 2017
Virtual Observatory is one of the most used internet-based protocols in astronomy. It has become somewhat natural to find, manage, compare, visualize and download observations from very different archives of astronomical observations with no effort.
Suárez Juan Carlos
doaj   +1 more source

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