Zobrazeno 1 - 10
of 45
pro vyhledávání: '"A. C. Donea"'
Autor:
S. S. A. Silva, M. Lennard, G. Verth, I. Ballai, E. L. Rempel, J. Warnecke, H. Iijima, H. Hotta, S.-H. Park, A. C. Donea, K. Kusano, V. Fedun
Publikováno v:
The Astrophysical Journal Letters, Vol 948, Iss 2, p L24 (2023)
One key aspect of understanding the solar dynamo mechanism and the evolution of solar magnetism is to properly describe the emergence of solar active regions. In this Letter, we describe the Lagrangian photospheric flows dynamics during a simulated f
Externí odkaz:
https://doaj.org/article/d8ad25c8286e487489b3c53d2828bd53
Publikováno v:
Solar Physics. 245:121-139
We carried out an electromagnetic acoustic analysis of the solar flare of 14 August 2004 in active region AR10656 from the radio to the hard X-ray spectrum. The flare was a GOES soft X-ray class M7.4 and produced a detectable sun quake, confirming ea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dee45826c4be801f2a7a331d8a8e12fd
https://doi.org/10.1007/s11207-007-9004-8
https://doi.org/10.1007/s11207-007-9004-8
We use the exact solutions for magnetoacoustic waves in a two dimensional isothermal atmosphere with uniform inclined magnetic field to calculate the wave reflection, transmission, and conversion of slow and fast waves incident from above ($z=\infty$
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08a50f6d368388ea2911a0c497ee73c1
http://arxiv.org/abs/1511.07364
http://arxiv.org/abs/1511.07364
Autor:
Alina-C. Donea, Hannah Schunker
Publikováno v:
Space Science Reviews. 107:99-102
We present preliminary results from high resolution observations obtained with the Michelson Doppler Imager (MDI) instrument on the SOHO of two large solar flares of 14 July 2000 and 24 November 2000. We show that rapid variations of the line-of-sigh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::388e4be0060ab4a559e201aeb4056953
https://doi.org/10.1023/a:1025559319434
https://doi.org/10.1023/a:1025559319434
Autor:
Alina C. Donea, R. J. Protheroe
Publikováno v:
Publications of the Astronomical Society of Australia. 19:39-42
In blazar models both protons and electrons may be efficiently accelerated in jets and produce γ-rays. Here we discuss the interactions of these γ-rays with different radiation fields. The external radiation fields within a few parsecs from the bla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9517916b064f74d53dd498abd6ce419d
https://doi.org/10.1071/as01098
https://doi.org/10.1071/as01098
Autor:
Alina C. Donea, Peter L. Biermann
Publikováno v:
Publications of the Astronomical Society of Australia. 19:125-128
This paper discusses the boundary layer and the emission spectrum from an accretion disk having a jet anchored at its inner radius, close to the black hole. We summarise our earlier work and apply it to the accretion disks of some blazars. We suggest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd8650d03054e094897c4c3eb798987e
https://doi.org/10.1071/as01078
https://doi.org/10.1071/as01078
Publikováno v:
The Astrophysical Journal. 513:L143-L146
We have used helioseismic holography to render seismic images of the solar flare of 1996 July 9, whose helioseismic signature was recently reported by Kosovichev & Zharkova. We computed time series of "egression power maps" in 2 mHz bands centered at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3201d0061827e3aa6e6013d01259dce0
https://doi.org/10.1086/311915
https://doi.org/10.1086/311915
Autor:
A.-C. Donea, J. C. Martinez-Oliveros
Dynamical changes in the solar corona have proven to be very important in inducing seismic waves into the photosphere. Different mechanisms for their generation have been proposed. In this work, we explore the magnetic field forces as plausible mecha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b253c3001750935430f1186fe56c8510
http://arxiv.org/abs/0902.3856
http://arxiv.org/abs/0902.3856
Autor:
C. Lindsey, A.-C. Donea
Publikováno v:
Helioseismology, Asteroseismology, and MHD Connections ISBN: 9780387894812
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a58d7dc926560430ac54e2aeae66e0bb
https://doi.org/10.1007/978-0-387-89482-9_41
https://doi.org/10.1007/978-0-387-89482-9_41
Publikováno v:
Helioseismology, Asteroseismology, and MHD Connections ISBN: 9780387894812
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::357486ee824ca2da13280a8943ab7acb
https://doi.org/10.1007/978-0-387-89482-9_40
https://doi.org/10.1007/978-0-387-89482-9_40