Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Debi Prasad Choudhary"'
Autor:
Shuo Wang, Jack M. Jenkins, Karin Muglach, Valentin Martinez Pillet, Christian Beck, David M. Long, Debi Prasad Choudhary, James McAteer
Solar filaments exist as stable structures for extended periods of time before many of them form the core of a coronal mass ejection (CME). We examine the properties of an erupting filament on 2017 May 29–30 with high-resolution He i 10830 Å and H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8775590891fcdc6ed1eb06f1b4e52898
http://arxiv.org/abs/2111.07830
http://arxiv.org/abs/2111.07830
Autor:
Debi Prasad Choudhary
Publikováno v:
Space Weather. 17:375-378
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e366b21f81ad5ba68dfd1974af7cfeb
https://doi.org/10.1029/2018sw002097
https://doi.org/10.1029/2018sw002097
Publikováno v:
FCCM
Solar observations specifically allow one to determine stratifications of atmospheric properties in detail from studying spectra at a high spectral and temporal resolution. In this paper, we present a hardware accelerated framework for solar spectral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf2fb7d5f92922613950eb001942fabd
https://doi.org/10.1109/fccm51124.2021.00063
https://doi.org/10.1109/fccm51124.2021.00063
Context: Resistive Ohmic dissipation has been suggested as a mechanism for heating the solar chromosphere, but few studies have established this association. Aim: We aim to determine how Ohmic dissipation by electric currents can heat the solar chrom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b44bbdeba6f6b06c272c4cbde714c33
Publikováno v:
Solar Physics. 295
The Total Solar Irradiance (TSI) primarily varies on an 11-year time scale and is governed by features such as sunspots and associated decay products such as plage and faculae. These short-lived physical features can also modulate the solar irradianc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::418694a123083cfc22788bf1c30e4685
https://doi.org/10.1007/s11207-019-1559-7
https://doi.org/10.1007/s11207-019-1559-7
We use a combination of full-disk data from the Solar Dynamics Observatory and high-resolution data from the Dunn Solar Telescope (DST) to study the formation, structure, and evolution of an atypical light bridge (LB) in a regular sunspot. The LB res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b39fff31a8bc939847d6c4a962f6a388
Autor:
Debi Prasad Choudhary, Christian Beck
The inverse Evershed flow (IEF) is an inflow of material into the penumbra of sunspots in the solar chromosphere that occurs along dark, elongated superpenumbral fibrils extending from about the outer edge of the moat cell to the sunspot. The IEF cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::597f111c44aa0e1ae2003f89a5e9210b
Autor:
Debi Prasad Choudhary, Christian Beck, Valentin Martinez Pillet, Jack Jenkins, Karin Muglach, David Long, Shuo Wang, James McAteer
The full 3-D vector magnetic field of a solar filament prior to eruption is presented. The filament was observed with the Facility Infrared Spectropolarimeter at the Dunn Solar Telescope in the chromospheric He i line at 10830 {\AA} on May 29 and 30,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3149bd10a2dd2c7b9acfe62c2f96d18
Autor:
Debi Prasad Choudhary, C. Beck
We determined the direction and strength of the photospheric and lower chromospheric magnetic field in the umbra and penumbra of a sunspot from inversions of spectropolarimetric observations of photospheric lines at 617\,nm and 1565\,nm, and the chro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e491ffcb93d48f391472501fa92a462
http://arxiv.org/abs/1902.04660
http://arxiv.org/abs/1902.04660
Publikováno v:
The Astrophysical Journal. 902:30
We present the properties of the inverse Evershed flow (IEF) based on the center-to-limb variation of the plasma speed and loop geometry of chromospheric superpenumbral fibrils in eleven sunspots that were located at a wide range of heliocentric angl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b8e3c5fdbeb07b1c206c42512836c2a
https://doi.org/10.3847/1538-4357/abb3bf
https://doi.org/10.3847/1538-4357/abb3bf