Flare-related Recurring Active Region Jets: Evidence for Very Hot Plasma
Sign Up to like & getrecommendations! Published in 2018 at "Solar Physics"
DOI: 10.1007/s11207-018-1376-4
Abstract: We present a study of two active region jets (AR jets) that are associated with two C-class X-ray flares. The recurrent, homologous jets originated from the northern periphery of a sunspot. We confirm flare-like temperatures… read more here.
Keywords: evidence hot; region jets; jet footpoint; active region ... See more keywords
Characteristics of SEP Events and Their Solar Origin During the Evolution of Active Region NOAA 10069
Sign Up to like & getrecommendations! Published in 2019 at "Solar Physics"
DOI: 10.1007/s11207-019-1400-3
Abstract: We present the results of a comparative analysis of the properties of a series of successive solar flares, which occurred in active region (AR) 10069 in August 2002, and the associated solar energetic particle (SEP)… read more here.
Keywords: region; characteristics sep; sep events; active region ... See more keywords
Evolution of Photospheric Magnetic Field and Electric Currents During the X1.6 Flare in Active Region NOAA 12192
Sign Up to like & getrecommendations! Published in 2025 at "Solar Physics"
DOI: 10.1007/s11207-025-02451-x
Abstract: The dynamics of magnetic fields in the Sun’s active regions play a key role in triggering solar eruptions. Studies have shown that changes in the photosphere’s magnetic field can destabilize the large-scale structure of the… read more here.
Keywords: flare active; magnetic field; region; active region ... See more keywords
Time Path of Turbulence and Multi-Fractality of Magnetic Field in the Evolution of an Active Region
Sign Up to like & getrecommendations! Published in 2025 at "Solar Physics"
DOI: 10.1007/s11207-025-02484-2
Abstract: Magnetograms acquired with the Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamics Observatory (SDO) were used to calculate and analyze time variations of turbulence and multifractality in the photosphere during the development and… read more here.
Keywords: time; turbulence; time path; magnetic field ... See more keywords
SARD: A YOLOv8-Based System for Solar Active Region Detection with SDO/HMI Magnetograms
Sign Up to like & getrecommendations! Published in 2025 at "Solar Physics"
DOI: 10.1007/s11207-025-02525-w
Abstract: Solar active regions are where sunspots are located and photospheric magnetic fluxes are concentrated, therefore being the sources of energetic eruptions in the solar atmosphere. The detection and statistics of solar active regions have been… read more here.
Keywords: detection; active regions; solar active; active region ... See more keywords
A study of acoustic halos in active region NOAA 11330 using multi-height SDO observations
Sign Up to like & getrecommendations! Published in 2018 at "Advances in Space Research"
DOI: 10.1016/j.asr.2017.10.033
Abstract: Abstract We analyze data from the Helioseismic Magnetic Imager (HMI) and the Atmospheric Imaging Assembly (AIA) instruments on board the Solar Dynamics Observatory (SDO) to characterize the spatio-temporal acoustic power distribution in active regions as… read more here.
Keywords: noaa 11330; halos active; study acoustic; region noaa ... See more keywords
M-shaped quantum wells for active region of interband cascade laser
Sign Up to like & getrecommendations! Published in 2019 at "Optical Materials"
DOI: 10.1016/j.optmat.2018.11.014
Abstract: Abstract This work proposes an M-shaped design of quantum wells (QWs) based on a combination of InAs and GaInSb materials forming a broken gap type II system, which can be used as an active region… read more here.
Keywords: active region; region interband; quantum wells; interband cascade ... See more keywords
Gradual degradation in InAs quantum dot lasers on Si and GaAs.
Sign Up to like & getrecommendations! Published in 2024 at "Nanoscale"
DOI: 10.1039/d3nr05311c
Abstract: Reliable quantum dot lasers on silicon are a key remaining challenge to successful integrated silicon photonics. In this work, quantum dot (QD) lasers on silicon with and without misfit dislocation trapping layers are aged for… read more here.
Keywords: quantum dot; dot lasers; gradual degradation; active region ... See more keywords
Propagating wave in active region-loops, located over the solar disk observed by the Interface Region Imaging Spectrograph
Sign Up to like & getrecommendations! Published in 2018 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201731034
Abstract: We aim to ascertain the physical parameters of a propagating wave over the solar disk detected by the Interface Region Imaging Spectrograph (IRIS). Using imaging data from the IRIS and the Solar Dynamic Observatory (SDO),… read more here.
Keywords: solar disk; wave active; active region; propagating wave ... See more keywords
Relative field line helicity of a large eruptive solar active region
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202140384
Abstract: Context. Magnetic helicity is a physical quantity of great importance in the study of astrophysical and natural plasmas. Although a density for helicity cannot be defined, a good proxy for it is field line helicity.… read more here.
Keywords: field; field line; active region; line helicity ... See more keywords
High performance Ge/MoS2 heterojunction photodetector with a short active region
Sign Up to like & getrecommendations! Published in 2024 at "Applied Physics Letters"
DOI: 10.1063/5.0218449
Abstract: We present a Ge/MoS2 van der Waals heterojunction photodetector with a short active region constructed using a transfer process. The device exhibits broadband, self-powered, superior device performance within the visible to infrared wavelength (500–1700 nm) operated… read more here.
Keywords: mos2 heterojunction; heterojunction; heterojunction photodetector; photodetector short ... See more keywords