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EVOLUTION OF MAGNETIC FIELD AND ENERGY IN A MAJOR ERUPTIVE ACTIVE REGION BASED ON SDO/HMI OBSERVATION
- Xudong Sun, J. T. Hoeksema, J. Thalmann
- Physics
- 1 October 2011
We report the evolution of magnetic field and its energy in NOAA active region 11158 over 5 days based on a vector magnetogram series from the Helioseismic and Magnetic Imager (HMI) on board the…
TREM2 Is a Receptor for β-Amyloid that Mediates Microglial Function
- Yingjun Zhao, Xi-lin Wu, Huaxi Xu
- Biology, ChemistryNeuron
- 1 March 2018
Why Is the Great Solar Active Region 12192 Flare-Rich But CME-Poor?
- Xudong Sun, M. Bobra, G. Fisher
- Physics
- 24 February 2015
Solar active region (AR) 12192 of October 2014 hosts the largest sunspot group in 24 years. It is the most prolific flaring site of Cycle 24, but surprisingly produced no coronal mass ejection (CME)…
On Polar Magnetic Field Reversal and Surface Flux Transport During Solar Cycle 24
- Xudong Sun, J. T. Hoeksema, Yang Liu, Junwei Zhao
- Physics
- 31 October 2014
As each solar cycle progresses, remnant magnetic flux from active regions (ARs) migrates poleward to cancel the old-cycle polar field. We describe this polarity reversal process during Cycle 24 using…
Unexplained excess of electronlike events from a 1-GeV neutrino beam.
- A. Aguilar-Arevalo, C. Anderson, E. Zimmerman
- PhysicsPhysical review letters
- 1 March 2009
TLDR
RESPONSE OF THE PHOTOSPHERIC MAGNETIC FIELD TO THE X2.2 FLARE ON 2011 FEBRUARY 15
It is well known that the long-term evolution of the photospheric magnetic field plays an important role in building up free energy to power solar eruptions. Observations, despite being…
Photospheric Electric Fields and Energy Fluxes in the Eruptive Active Region NOAA 11158
- M. Kazachenko, G. Fisher, B. Welsch, Yang Liu, Xudong Sun
- Physics
- 22 May 2015
How much electromagnetic energy crosses the photosphere in evolving solar active regions? With the advent of high-cadence vector magnetic field observations, addressing this fundamental question has…
A NON-RADIAL ERUPTION IN A QUADRUPOLAR MAGNETIC CONFIGURATION WITH A CORONAL NULL
- Xudong Sun, T. Hoeksema, Yang Liu, Qingrong Chen, K. Hayashi
- Physics
- 6 August 2012
We report one of the several homologous non-radial eruptions from NOAA active region (AR) 11158 that are strongly modulated by the local magnetic field as observed with the Solar Dynamic Observatory.…
The Global Solar Magnetic Field Through a Full Sunspot Cycle: Observations and Model Results
- C. Schrijver, Yang Liu
- Physics
- 2 August 2008
Based on 11 years of SOHO/MDI observations from the cycle minimum in 1997 to the next minimum around 2008, we compare observed and modeled axial dipole moments to better understand the large-scale…
Mineral chemistry of the Tissint meteorite: Indications of two‐stage crystallization in a closed system
- Yang Liu, I. Baziotis, P. Asimow, R. Bodnar, L. Taylor
- Geology
- 1 December 2016
The Tissint meteorite is a geochemically depleted, olivine‐phyric shergottite. Olivine megacrysts contain 300–600 μm cores with uniform Mg# (~80 ± 1) followed by concentric zones of Fe‐enrichment…
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