Results 111 to 120 of about 10,736 (185)

Measuring the Magnetic Field of a Coronal Mass Ejection from the Low to Middle Corona

The Astrophysical Journal Letters
A major challenge in understanding the initiation and evolution of coronal mass ejections (CMEs) is measuring the magnetic field of the magnetic flux ropes (MFRs) that drive CMEs.
Xingyao Chen, Bin Chen, Sijie Yu, Surajit Mondal, Muriel Zoë Stiefel, Peijin Zhang, Dale E. Gary, Säm Krucker, Marin M. Anderson, Judd D. Bowman, Ruby Byrne, Morgan Catha, Sherry Chhabra, Larry D’Addario, Ivey Davis, Jayce Dowell, Gregg Hallinan, Charlie Harnach, Greg Hellbourg, Jack Hickish, Rick Hobbs, David Hodge, Mark Hodges, Yuping Huang, Andrea Isella, Daniel C. Jacobs, Ghislain Kemby, John T. Klinefelter, Matthew Kolopanis, Nikita Kosogorov, James Lamb, Casey J. Law, Nivedita Mahesh, Brian O’Donnell, Kathryn Plant, Corey Posner, Travis Powell, Vinand Prayag, Andres Rizo, Andrew Romero-Wolf, Jun Shi, Greg Taylor, Jordan Trim, Mike Virgin, Akshatha Vydula, Sandy Weinreb, David Woody   +46 more
doaj   +1 more source

Highly Polarized Type III Storm Observed with Parker Solar Probe

The Astrophysical Journal Letters
The Parker Solar Probe (PSP) spacecraft observed a large coronal mass ejection (CME) on 2022 September 5, shortly before closest approach during the 13th PSP solar encounter.
Marc Pulupa, Stuart D. Bale, Immanuel Christopher Jebaraj, Orlando Romeo, Säm Krucker   +4 more
doaj   +1 more source

First Robust Detection of Linear Polarization from Metric Solar Emissions: Challenging Established Paradigms

The Astrophysical Journal Letters
Polarimetric radio observations of the Sun can provide rich information about emission mechanisms and the propagation medium. For the past five decades, solar polarimetric studies at low radio frequencies have almost always assumed the absence of linear ...
Soham Dey, Devojyoti Kansabanik, Divya Oberoi, Surajit Mondal   +3 more
doaj   +1 more source

Magneto-thermal Coupling and Coronal Heating in Solar Active Regions Inferred from Microwave Observations

The Astrophysical Journal
The solar corona is much hotter than the photosphere and chromosphere, but the physical mechanism responsible for heating the coronal plasma remains unidentified. The thermal microwave emission, which is produced in a strong magnetic field above sunspots,
Alexey A. Kuznetsov, Gregory D. Fleishman, Gelu M. Nita, Sergey A. Anfinogentov   +3 more
doaj   +1 more source

Spatiotemporal Characteristics of Very-long-periodic Pulsations in Solar Meterwave Bursts: Implications for Their Origins

The Astrophysical Journal Letters
We traced the origin of very-long-periodic pulsations (VLPs) in type-I burst chains on 2024 February 14. Seven successive and repetitive pulsation structures appeared in radio dynamic spectra in the metric waveband, which were simultaneously measured by ...
Dong Li, Lei Lu, Jingye Yan, Xinhua Zhao, Bing Wang, Chengming Tan, Jianping Li, Zongjun Ning   +7 more
doaj   +1 more source

Refraction and scattering of radio emission from a solar source due to coronal inhomogeneities [PDF]

Proceedings of the International Astronomical Union, 2004
Alexander N. Afanasiev, A. T. Altyntsev
openaire   +1 more source

A Dedicated System for Coordinated Radio and Optical Monitoring of the Space Weather of Young, Solar-type Stars

The Astrophysical Journal
Low-frequency radio emission in the form of type II and III bursts is a direct indicator of plasma motion in the solar corona and interplanetary medium.
Ivey Davis, Gregg Hallinan, Navtej Saini, Casey Law, Yuping Huang, Rick Burruss, Jeffry Zolkower, John Baker, Curt Corcoran, Carolyn Heffner, Kathryn Plant, Nikita Kosogorov, Marin Anderson, Andrea Isella, Larry D’Addario, Jun Shi, Greg Hellbourg, David Hodge, Sandy Weinreb, Nivedita Mahesh, Ruby Byrne, Jack Hickish, Rick Hobbs, Mike Virgin, Ghislain Kemby, Corey Posner, John T. Klinefelter, Morgan Catha, James Lamb, Mark Hodges, Charlie Harnach, Vinand Prayag, David Woody, Andres Rizo, Andrew Romero-Wolf, Judd D. Bowman, Daniel C. Jacobs, Matthew Kolopanis, Katherine Elder, Akshatha K. Vydula, Dale Gary, Bin Chen, Surajit Mondal, Peijin Zhang, Sijie Yu, Sherry Chhabra, Brian O’Donnell, Jayce Dowell, Greg Taylor   +48 more
doaj   +1 more source

Herringbone Structures during an X-class Eruptive Flare

The Astrophysical Journal
In this paper, we report quasiperiodic herringbone structures during the impulsive phase of an X-class flare, coinciding with the distinct acceleration phase of eruptive prominence ejection on 2023 December 31.
Qingmin Zhang, Zongjun Ning, Xingyao Chen, Wei Chen, Xiaoli Yan, Shuyue Li   +5 more
doaj   +1 more source

Defining the Middle Corona. [PDF]

Sol Phys, 2023
West MJ, Seaton DB, Wexler DB, Raymond JC, Del Zanna G, Rivera YJ, Kobelski AR, Chen B, DeForest C, Golub L, Caspi A, Gilly CR, Kooi JE, Meyer KA, Alterman BL, Alzate N, Andretta V, Auchère F, Banerjee D, Berghmans D, Chamberlin P, Chitta LP, Downs C, Giordano S, Harra L, Higginson A, Howard RA, Kumar P, Mason E, Mason JP, Morton RJ, Nykyri K, Patel R, Rachmeler L, Reardon KP, Reeves KK, Savage S, Thompson BJ, Van Kooten SJ, Viall NM, Vourlidas A, Zhukov AN.   +41 more
europepmc   +1 more source

Microwave Bright Points with Multiple Periodic Oscillations in the Solar Polar Coronal Hole during Solar Cycle Minimum

The Astrophysical Journal
During solar cycle minimum, polar coronal holes show a prominent radio brightening cap. The analysis of polar microwave enhanced radiation in polar coronal holes is helpful for understanding the magnetic field characteristics and the origin of the solar ...
Jing Huang, Satoshi Masuda, Baolin Tan, Yin Zhang, Shangbin Yang, Shuhong Yang, Yuanyong Deng   +6 more
doaj   +1 more source