Rothberger and Rothberger-type star selection principles on hyperspaces
Sign Up to like & getrecommendations! Published in 2021 at "Topology and its Applications"
DOI: 10.1016/j.topol.2020.107448
Abstract: Abstract In this paper we characterize the Rothberger property and the selection principles star-Rothberger and strongly star-Rothberger in the hyperspaces C L ( X ) , K ( X ) , F ( X )… read more here.
Keywords: rothberger rothberger; type star; selection; topology ... See more keywords
Possible evidence of induced repetitive magnetic reconnection in a superflare from a young solar-type star
Sign Up to like & getrecommendations! Published in 2020 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201936819
Abstract: We report the detection of multiple quasi-periodic pulsations (QPPs) observed during the flaring activity of KIC 8414845, a young, active solar-type star observed by the Kepler mission launched by NASA. We analyzed the QQP signal… read more here.
Keywords: solar type; type star; reconnection; magnetic reconnection ... See more keywords
HD 99458: First time ever Ap-type star as a δ Scuti pulsator in a short period eclipsing binary?
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz1478
Abstract: We present the discovery of a unique object, a chemically peculiar Ap-type star showing fi Scuti pulsations that, is bound in an eclipsing binary system with an orbital period shorter than 3 d. HD 99458… read more here.
Keywords: 99458 first; eclipsing binary; type star; period ... See more keywords
Is the Sun a solar-type star?
Sign Up to like & getrecommendations! Published in 2017 at "Science"
DOI: 10.1126/science.357.6347.159-a
Abstract: Stellar Activity The Sun's activity, including sun-spot activity, varies on an 11-year cycle driven by changes in its magnetic field. Other nearby solar-type stars have their own cycles, but the Sun does not seem to… read more here.
Keywords: type star; solar type; sun; type ... See more keywords
Comparison and continuity of Wick-type star products on certain coadjoint orbits
Sign Up to like & getrecommendations! Published in 2019 at "Forum Mathematicum"
DOI: 10.1515/forum-2018-0302
Abstract: Abstract In this paper, we discuss continuity properties of the Wick-type star product on the 2-sphere, interpreted as a coadjoint orbit. Star products on coadjoint orbits in general have been constructed by different techniques. We… read more here.
Keywords: coadjoint orbits; continuity; star products; type star ... See more keywords