output
20032024
most citedProperties of sunspots in cycle 23: I. Dependence of brightness on sunspot size and cycle phase

90 citations

Showing 2023Show all

5 papers · 1 filter

astro-ph.SR202313 cited

Exploring source region of 3-min slow magnetoacoustic waves observed in coronal fan loops rooted in sunspot umbra

Ananya Rawat, Girjesh R. Gupta

Sunspots host various oscillations and wave phenomena like umbral flashes, umbral oscillations, running penumbral waves, and coronal waves. All fan loops rooted in sunspot umbra co…

astro-ph.SR202314 cited

Formation of an observed eruptive flux rope above the torus instability threshold through tether-cutting magnetic reconnection

Avijeet Prasad, Sanjay Kumar, Alphonse C. Sterling +4

Erupting magnetic flux ropes (MFRs) play a crucial role in producing solar flares. However, the formation of erupting MFRs in complex coronal magnetic configurations and their subs…

astro-ph.SR20231 cited

Magnetohydrodynamics simulation of magnetic flux rope formation in a quadrupolar magnetic field configuration

Sanjay Kumar, Avijeet Prasad, Sushree S. Nayak +2

Magnetic flux ropes (MFRs) play an important role in high-energetic events like solar flares and coronal mass ejections in the solar atmosphere. Importantly, solar observations sug…

astro-ph.SR20232 cited

Hall effect on the magnetic reconnections during the evolution of a three-dimensional magnetic flux rope

Kamlesh Bora, Satyam Agarwal, Sanjay Kumar +1

We present a novel Hall magnetohydrodynamics (HMHD) numerical simulation of a three-dimensional (3D) magnetic flux rope (MFR) -- generated by magnetic reconnections from an initial…

astro-ph.SR20236 cited

A study of the propagation of magnetoacoustic waves in small-scale magnetic fields using solar photospheric and chromospheric Dopplergrams: HMI/SDO and MAST observations

Hirdesh Kumar, Brajesh Kumar, S. P. Rajaguru +2

In this work, we present a study of the propagation of low-frequency magneto-acoustic waves into the solar chromosphere within small-scale inclined magnetic fields over a quiet-mag…