Zobrazeno 1 - 10
of 662
pro vyhledávání: '"Fields, P. M."'
Autor:
Wanderley, Fabio, Cunha, Katia, Kochukhov, Oleg, Smith, Verne V., Souto, Diogo, Cao, Lyra, Covey, Kevin, Majewski, Steven R., Martinez, Cintia, Muirhead, Philip S., Pinsonneault, Marc, Prieto, C. Allende, Stassun, Keivan G.
Average magnetic field measurements are presented for 62 M-dwarf members of the Pleiades open cluster, derived from Zeeman-enhanced Fe I lines in the H-band. An MCMC methodology was employed to model magnetic filling factors using SDSS-IV APOGEE high
Externí odkaz:
http://arxiv.org/abs/2406.13757
Autor:
Kochukhov, Oleg
Magnetic fields play a fundamental role for interior and atmospheric properties of M dwarfs and greatly influence terrestrial planets orbiting in the habitable zones of these low-mass stars. Determination of the strength and topology of magnetic fiel
Externí odkaz:
http://arxiv.org/abs/2011.01781
Autor:
Shulyak, D., Reiners, A., Nagel, E., Tal-Or, L., Caballero, J. A., Zechmeister, M., Béjar, V. J. S., Cortés-Contreras, M., Martin, E. L., Kaminski, A., Ribas, I., Quirrenbach, A., Amado, P. J., Anglada-Escudé, G., Bauer, F. F., Dreizler, S., Guenther, E. W., Henning, T., Jeffers, S. V., Kürster, M., Lafarga, M., Morales, J. C., Pedraz, S.
Publikováno v:
A&A 626, A86 (2019)
M dwarfs are known to generate the strongest magnetic fields among main-sequence stars with convective envelopes, but the link between the magnetic fields and underlying dynamo mechanisms, rotation, and activity still lacks a consistent picture. In t
Externí odkaz:
http://arxiv.org/abs/1904.12762
Autor:
Fábio Wanderley, Katia Cunha, Oleg Kochukhov, Verne V. Smith, Diogo Souto, Lyra Cao, Kevin Covey, Steven R. Majewski, Cintia Martinez, Philip S. Muirhead, Marc Pinsonneault, C. Allende Prieto, Keivan G. Stassun
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 112 (2024)
Average magnetic field measurements are presented for 62 M-dwarf members of the Pleiades open cluster, derived from Zeeman-enhanced Fe i lines in the H band. A Markov Chain Monte Carlo methodology was employed to model magnetic filling factors using
Externí odkaz:
https://doaj.org/article/039ed866462d4864873280e4f186cc50
Autor:
Amira Ishan, Sharief Deshmukh
Publikováno v:
AIMS Mathematics, Vol 7, Iss 2, Pp 3056-3066 (2022)
A characterization of an $ m $-sphere $ \mathbf{S}^{m}(a) $ is obtained using a non-trivial torse-forming vector field $ \zeta $ on an $ m $-dimensional Riemannian manifold.
Externí odkaz:
https://doaj.org/article/d6c26493b4ab4d489ba0524833466697
Autor:
Guerrier, Stéphane, Molinari, Roberto
We present a general M-estimation framework for inference on the wavelet variance. This framework generalizes the results on the scale-wise properties of the standard estimator and extends them to deliver the joint asymptotic properties of the estima
Externí odkaz:
http://arxiv.org/abs/1607.05858
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Observations of active M dwarfs show a broad variety of large-scale magnetic fields encompassing dipole-dominated and multipolar geometries. We detail the analogy between some anelastic dynamo simulations and spectropolarimetric observations of 23 M
Externí odkaz:
http://arxiv.org/abs/1309.6180
Strong surface magnetic fields are ubiquitously found in M-dwarfs with mean intensities on the order of few thousand Gauss-three orders of magnitude higher than the mean surface magnetic field of the Sun. These fields and their interaction with photo
Externí odkaz:
http://arxiv.org/abs/1012.1435
Akademický článek
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