output
20062026
most citedThe Helioseismic and Magnetic Imager (HMI) Vector Magnetic Field Pipeline: SHARPs -- Space-weather HMI Active Region Patches

758 citations

Showing 2020Show all

8 papers · 1 filter

astro-ph.SR2020★ 38 cited

Deriving CME density from remote sensing data and comparison to in-situ measurements

M. Temmer, L. Holzknecht, M. Dumbovic +8

We determine the 3D geometry and deprojected mass of 29 well-observed coronal mass ejections (CMEs) and their interplanetary counterparts (ICMEs) using combined STEREO-SOHO white-l…

astro-ph.SR2020★ 24 cited

Eruptive-Impulsive Homologous M-class Flares Associated with Double-Decker Flux Rope Configuration in Mini-Sigmoid of NOAA 12673

Prabir K. Mitra, Bhuwan Joshi, Astrid M. Veronig +3

We present a multiwavelength analysis of two homologous, short lived, impulsive flares of GOES class M1.4 and M7.3, that occurred from a very localized mini-sigmoid region within t…

astro-ph.SR2020★ 29 cited

Average motion of emerging solar active region polarities II: Joy's law

Hannah Schunker, Christian Baumgartner, Aaron C. Birch +3

The tilt of solar active regions described by Joy's law is essential for converting a toroidal field to a poloidal field in Babcock-Leighton dynamo models. In thin flux tube models…

astro-ph.SR2020★ 40 cited

The Coronal Global Evolutionary Model: Using HMI Vector Magnetogram and Doppler Data to Determine Coronal Magnetic Field Evolution

J. Todd Hoeksema, William P. Abbett, David J. Bercik +10

The Coronal Global Evolutionary Model (CGEM) provides data-driven simulations of the magnetic field in the solar corona to better understand the build-up of magnetic energy that le…

astro-ph.SR2020★ 28 cited

Coronal dimmings associated with coronal mass ejections on the solar limb

Galina Chikunova, Karin Dissauer, Tatiana Podladchikova +1

We present a statistical analysis of 43 coronal dimming events, associated with Earth-directed CMEs that occurred during the period of quasi-quadrature of the SDO and STEREO satell…

astro-ph.SR2020★ 4 cited

Relative Magnetic Helicity Based on a Periodic Potential Field

Kai E. Yang, Michael S. Wheatland, Stuart A. Gilchrist

Magnetic helicity is conserved under ideal magnetohydrodynamics (MHD) and quasi-conserved even under a resistive process. The standard definition for magnetic helicity cannot be ap…