Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Alexei Pevtsov"'
Autor:
Azim Ahmadzadeh, Rohan Adhyapak, Kartik Chaurasiya, Laxmi Alekhya Nagubandi, V. Aparna, Petrus C. Martens, Alexei Pevtsov, Luca Bertello, Alexander Pevtsov, Naomi Douglas, Samuel McDonald, Apaar Bawa, Eugene Kang, Riley Wu, Dustin J. Kempton, Aya Abdelkarem, Patrick M. Copeland, Sri Harsha Seelamneni
Publikováno v:
Scientific Data, Vol 11, Iss 1, Pp 1-15 (2024)
Abstract We present the Manually Annotated GONG Filaments in H-alpha Observations (MAGFiLO v1.0) dataset. This dataset contains 10,244 annotated filaments from 1,593 observations captured by the Global Oscillation Network Group (GONG), spanning the y
Externí odkaz:
https://doaj.org/article/13a69e292c4f40f0b27193c2e121b83f
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2024)
Studies of stellar magnetic fields mostly rely on proxies derived from chromospheric lines, typically forming in the UV and shorter wavelengths and therefore accessible only from space based observatories. Even Ca II K or H observations, forming in r
Externí odkaz:
https://doaj.org/article/ef42778e0ac04d68b27530e3dccd0550
Autor:
Elizabeth A. Jensen, Nat Gopalswamy, Lynn B. Wilson, Lan K. Jian, Shing F. Fung, Teresa Nieves-Chinchilla, Marta Shelton, Lihua Li, Manohar Deshpande, Lloyd Purves, Joseph Lazio, Ward B. Manchester, Brian E. Wood, Jason E. Kooi, David B. Wexler, Stuart Bale, Alexei Pevtsov, Bernard V. Jackson, Megan N. Kenny
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
There continue to be open questions regarding the solar wind and coronal mass ejections (CMEs). For example: how do magnetic fields within CMEs and corotating/stream interaction regions (CIRs/SIRs) evolve in the inner heliosphere? What is the radiall
Externí odkaz:
https://doaj.org/article/3f143b2b35364dbba9f23cc3df356581
Autor:
Jason E. Kooi, David B. Wexler, Elizabeth A. Jensen, Megan N. Kenny, Teresa Nieves-Chinchilla, Lynn B. Wilson, Brian E. Wood, Lan K. Jian, Shing F. Fung, Alexei Pevtsov, Nat Gopalswamy, Ward B. Manchester
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
For decades, observations of Faraday rotation have provided unique insights into the plasma density and magnetic field structure of the solar wind. Faraday rotation (FR) is the rotation of the plane of polarization when linearly polarized radiation p
Externí odkaz:
https://doaj.org/article/af6a61faacb545ee8304539453ca6763
Solar eruptive phenomena, like flares and coronal mass ejections(CMEs) are governed by magnetic fields. To describe the structure of these phenomena one needs information on the magnetic flux density and the electric current density vector components
Externí odkaz:
http://arxiv.org/abs/1310.5790
A combined uniform and long-time series of Ca-K images from the Kodaikanal Observatory (KO), Mount Wilson Observatory (MWO), and Mauna Loa Solar Observatory (MLSO) were used to identify and study the Ca-K small-scale features and their solar cycle va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d866f3870d49d89b5e88e397cd0c5308
http://arxiv.org/abs/2301.07350
http://arxiv.org/abs/2301.07350
Intense photospheric magnetic fields manifest as enhanced emission in several spectral lines and parts of the continuum. Here we aim to improve the understanding of the relation between magnetic fields and radiative structures by using the seeing-fre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b65775ed12aad6adbfd96a2a345e97e
https://doi.org/10.5194/egusphere-egu22-9622
https://doi.org/10.5194/egusphere-egu22-9622
Autor:
Alexei Pevtsov
Publikováno v:
Journal of Scientific Exploration, Vol 30, Iss 3 (2016)
The Magnetic Universe: The Illusive Traces of an Invisible Force by J. B. Zirker. Johns Hopkins University Press, 2009. 312 pp. $37 (paperback). ISBN 978-0801893025. Magnetism is a complex concept to explain to the general public. The human eye canno
Externí odkaz:
https://doaj.org/article/8e9882ab89cf45e0bd930c1260eee282
The axial dipole moments of emerging active regions control the evolution of the axial dipole moment of the whole photospheric magnetic field and the strength of polar fields. Hale's and Joy's laws of polarity and tilt orientation affect the sign of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbdd6dcdf26ffe4f2ef801e726abd45e
https://doi.org/10.5194/egusphere-egu2020-21663
https://doi.org/10.5194/egusphere-egu2020-21663
Autor:
Aaron Ridley, Alexander Kosovichev, Alexei Pevtsov, Anthony Mannucci, Berkay Aydin, Cooper Downs, Dale Gary, David Pan, Edward DeLuca, Eric Christian, Farzad Kamalabadi, Frank Hill, Gabor Toth, Gelu Nita, Georgia de Nolfo, Gregory Fleishman, Jack Ireland, James McAteer, Jessica Lin, Jie Zhang, Juan Banda, Kelly Korreck, Laura Boucheron, Laurel Rachmeler, Leila Mays, Ludger Scherliess, Marc DeRosa, Marco Panesi, Marco Velli, Nagi Mansour, Noe Lugaz, Olac Fuentes, Petrus Martens, Qiang Hu, Rafal Angryk, Raluca Ilie, Mcintosh, Scott W., Shasha Zou, Stephen White, Tim Bastian, Todd Hoeksema, Tom Berger, Valentin Petrov, Veronica Bindi, Vincent Oria, Dean Pesnell, W., Wenda Cao
Publikováno v:
Web of Science
The authors of this report met on 28-30 March 2018 at the New Jersey Institute of Technology, Newark, New Jersey, for a 3-day workshop that brought together a group of data providers, expert modelers, and computer and data scientists, in the solar di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ea40bc4a101d8c3ea37e80ce0c6a185