Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Souvik Bose"'
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 2, p L34 (2024)
Magnetic tornadoes, characterized as impulsive Alfvén waves initiated by photospheric vortices in intergranular lanes, are considered efficient energy channels to the corona. Despite their acknowledged importance for solar coronal heating, their obs
Externí odkaz:
https://doaj.org/article/3a40722b971f4423a9348e5c7847e13c
Autor:
Viggo H. Hansteen, Juan Martinez-Sykora, Mats Carlsson, Bart De Pontieu, Milan Gošić, Souvik Bose
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 2, p 131 (2023)
The Mg ii h and k lines are among the best diagnostic tools of the upper solar chromosphere. This region of the atmosphere is of particular interest, as it is the lowest region of the Sun’s atmosphere where the magnetic field is dominant in the ene
Externí odkaz:
https://doaj.org/article/99deab86000a4f25b36edf163aaf749f
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 2, p 171 (2023)
Coronal bright points (CBPs) are sets of small-scale coronal loops, connecting opposite magnetic polarities, primarily characterized by their enhanced extreme-ultraviolet (EUV) and X-ray emission. Being ubiquitous, they are thought to play an importa
Externí odkaz:
https://doaj.org/article/8108f0d0973a488598febb0c790c331e
Autor:
Vicki L. Herde, Phillip C. Chamberlin, Don Schmit, Souvik Bose, Adrian Daw, Ryan O. Milligan, Vanessa Polito
Publikováno v:
The Astrophysical Journal, Vol 946, Iss 2, p 103 (2023)
We have developed an algorithm to identify solar spicules in the first ever systematic survey of on-disk spicules exclusively using Mg ii spectral observations. Using this algorithm we identify 2021 events in three Interface Region Imaging Spectrogra
Externí odkaz:
https://doaj.org/article/8ea55d30813d49a38826effe589927f6
Publikováno v:
Materials Today: Proceedings. 62:6507-6513
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d30eba647b00d84bcb9fa6f9ef60d9c
https://doi.org/10.1016/j.matpr.2022.04.331
https://doi.org/10.1016/j.matpr.2022.04.331
Autor:
Viggo H. Hansteen, Juan Martinez-Sykora, Mats Carlsson, Bart De Pontieu, Milan Gošić, Souvik Bose
The Mg II h&k lines are amongst the best diagnostic tools of the upper solar chromosphere. This region of the atmosphere is of particular interest as it is the lowest region of the Sun's atmosphere where the magnetic field is dominant in the energeti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bfe257857e9bb370738b39d64492dc3
Publikováno v:
Astronomy & Astrophysics. 668:A153
Short-lived (100s or less), sub-arcsec to a couple of arcsec size features of enhanced brightenings in the narrowband images at the $\mathrm{H_{2V}}$ and $\mathrm{K_{2V}}$ positions of the Ca II H and K lines in the quiet Sun are known as bright grai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d16153fd6181dd69fef8266cf642f8c0
https://doi.org/10.1051/0004-6361/202244332
https://doi.org/10.1051/0004-6361/202244332
Autor:
Valentina Salvatelli, Luiz F. G. dos Santos, Souvik Bose, Brad Neuberg, Mark C. M. Cheung, Miho Janvier, Meng Jin, Yarin Gal, Atilim Güneş Baydin
Publikováno v:
The Astrophysical Journal. 937:100
The Solar Dynamics Observatory (SDO), a NASA multi-spectral decade-long mission that has been daily producing terabytes of observational data from the Sun, has been recently used as a use-case to demonstrate the potential of machine learning methodol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20a31641a639dfeb8ddcdbf1034a38de
https://doi.org/10.3847/1538-4357/ac867b
https://doi.org/10.3847/1538-4357/ac867b
Publikováno v:
Astronomy & Astrophysics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=r3c4b2081b22::b7f8d77357aaaaad24429b64adee7dc5
Publikováno v:
Astronomy & Astrophysics
Ellerman bombs are regions with enhanced Balmer line wing emission and mark magnetic reconnection in the deep solar atmosphere in active regions and quiet Sun. They are often found in regions where opposite magnetic polarities are in close proximity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61bf87d8dfae1861b1edbb99cf6452e1