Results 41 to 50 of about 5,073 (240)
Prospects for asteroseismology [PDF]
Astrophysics and Space Science, 2009 Proc. HELAS Workshop on 'Synergies between solar and stellar modelling', eds M. Marconi, D. Cardini & M. P. Di Mauro, Astrophys.
Christensen-Dalsgaard, Jørgen +1 more
openaire +5 more sources
Magnetic and Rotational Evolution of ρ CrB from Asteroseismology with TESS [PDF]
Astrophysical Journal, 2021 During the first half of main-sequence lifetimes, the evolution of rotation and magnetic activity in solar-type stars appears to be strongly coupled. Recent observations suggest that rotation rates evolve much more slowly beyond middle age, while stellar
T. Metcalfe +17 more
semanticscholar +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
Asteroseismology Across the Hertzsprung–Russell Diagram
Annual Review of Astronomy and Astrophysics, 2022 Asteroseismology has grown from its beginnings three decades ago to a mature field teeming with discoveries and applications. This phenomenal growth has been enabled by space photometry with precision 10–100 times better than ground-based observations ...
D. Kurtz
semanticscholar +1 more source
The Pre-main Sequence: Challenges and Prospects for Asteroseismology
Frontiers in Astronomy and Space Sciences, 2022 Stars do not simply pop up on the main sequence. Before the stars arrive on the zero-age main sequence, they form in the collapses of molecular clouds, gain matter through accretion processes, and compress their cores until hydrogen can burn in full ...
Konstanze Zwintz, Thomas Steindl
doaj +1 more source
A Need to Revise Stellar Opacities from Asteroseismology of δ Scuti Stars [PDF]
Astrophysical Journal Letters, 2022 We construct seismic models of the four double-mode radial δ Scuti stars adopting opacities from three databases: OPAL, OP, and OPLIB. The aim is to find the models that fit the observed frequencies of the two radial modes and have the effective ...
J. Daszyńska-Daszkiewicz +4 more
semanticscholar +1 more source
On the Detectability of Large-Scale Flows by Asteroseismology
Frontiers 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
CubeSpec space mission. I. Asteroseismology of massive stars from time series optical spectroscopy: science requirements and target list prioritisation [PDF]
Astronomy & Astrophysics, 2021 Context. There is currently a niche for providing high-cadence, high resolution, time-series optical spectroscopy from space, which can be filled by using a low-cost cubesat mission.
D. Bowman +10 more
semanticscholar +1 more source
A review on Asteroseismology [PDF]
Proceedings of Frontier Research in Astrophysics – II — PoS(FRAPWS2016), 2017 Over the last decade, thanks to the successful space missions launched to detect stellar pulsations, Asteroseismology has produced an extraordinary revolution in astrophysics, unveiling a wealth of results on structural properties of stars over a large part of the H-R diagram.
Maria Pia, di Mauro
openaire +4 more sources
White Dwarfs as Physics Laboratories: Lights and Shadows
Frontiers in Astronomy and Space Sciences, 2022 The evolution of white dwarfs is essentially a gravothermal process of cooling in which the basic ingredients for predicting their evolution are well identified, although not always well understood. There are two independent ways to test the cooling rate.
J. Isern +6 more
doaj +1 more source