Zobrazeno 1 - 10
of 787
pro vyhledávání: '"Stellar magnetic field"'
Publikováno v:
Iranian Journal of Physics Research, Vol 17, Iss 4, Pp 595-601 (2017)
In a microlensing event, at caustic crossing, flux of a spot can be magnified several times with respect of the source star. This magnification contrast provide a unique opportunity to measure the magnetic field over a source star. In this work we in
Externí odkaz:
https://doaj.org/article/dfea813a14e64809a436f761607346a1
Autor:
Arthur G. Suvorov, Kostas Glampedakis
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 508:2399-2411
Accreting millisecond X-ray pulsars are known to provide a wealth of physical information during their successive states of outburst and quiescence. Based on the observed spin-up and spin-down rates of these objects it is possible, among other things
Autor:
Catherine Espaillat, C. E. Robinson, Mark Reynolds, Thanawuth Thanathibodee, Nuria Calvet, M. M. Romanova, J. Wendeborn, James Muzerolle
Publikováno v:
Nature
Magnetospheric accretion models predict that matter from protoplanetary disks accretes onto the star via funnel flows which follow the stellar field lines and shock on the stellar surface leaving a hot spot with a density gradient. Previous work has
Publikováno v:
Chinese Astronomy and Astrophysics. 44:70-86
Using the vector magnetograms observed by SDO (Solar Dynamics Observatory)/HMI (Helioseismic and Magnetic Imager), the current distribution and evolution associated with an X9.3 flare occurred in the active region AR12673 on Sept. 6, 2017 are studied
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 490:5567-5584
In this paper, an efficient algorithm is developed to automatically detect and extract coronal loops. First of all, in the algorithm, three characteristics associated with coronal loops are used to construct a match filter able to enhance the loops.
Publikováno v:
Universe, Vol 4, Iss 3, p 43 (2018)
In this work, we explore different aspects in which strong magnetic fields play a role in the composition, structure and evolution of neutron stars. More specifically, we discuss (i) how strong magnetic fields change the equation of state of dense ma
Externí odkaz:
https://doaj.org/article/3281c25d992f4bdcb07082661f2374af
During the final stages of a neutron-star binary coalescence, stellar quasi-normal modes can become resonantly excited by tidal fields. If the strain exerted by the excited modes exceeds the extent to which the crust can respond linearly, localised c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdfae8b02c7ada3d1efbd55a75244a99
http://arxiv.org/abs/2106.16123
http://arxiv.org/abs/2106.16123
Autor:
Markus Schöller, S. Hubrig
Publikováno v:
Magnetic Fields in O, B, and A Stars
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0421790a59b3bbc5d31c574dd4c9a5c4
https://doi.org/10.1088/2514-3433/abefccch2
https://doi.org/10.1088/2514-3433/abefccch2
Autor:
E. R. Christian, Stuart D. Bale, Justin C. Kasper, Peter Harvey, John W. Bonnell, Colin J. Joyce, David M. Malaspina, William H. Matthaeus, Riddhi Bandyopadhyay, Michael L. Stevens, David J. McComas, Keith Goetz, M. I. Desai, Nathan A. Schwadron, Marc Pulupa, J. R. Szalay, Robert J. MacDowall, T. Dudok de Wit, Matthew E. Hill, Joe Giacalone, Ralph L. McNutt, Donald G. Mitchell
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 650, pp.L4. ⟨10.1051/0004-6361/202039800⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 650, pp.L4. ⟨10.1051/0004-6361/202039800⟩
Context. The observation of numerous magnetic switchbacks and associated plasma jets in Parker Solar Probe (PSP) during its first five orbits, particularly near the Sun, has attracted considerable attention. Switchbacks have been found to be systemat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::582bcd3b4717cafeea80ae9e5336312b
https://hal-insu.archives-ouvertes.fr/insu-03342918/file/aa39800-20.pdf
https://hal-insu.archives-ouvertes.fr/insu-03342918/file/aa39800-20.pdf
Autor:
Gopal Hazra
Publikováno v:
Journal of Astrophysics and Astronomy. 42
In this review, we explain recent progress made in the Babcock-Leighton dynamo models for the Sun, which have been most successful to explain various properties of the solar cycle. In general, these models are 2D axisymmetric and the mean-field dynam