Sarah Gibson

NSF APPROVES FUNDING FOR COSMO

Artist's conceptualization of the COSMOS observatory

The National Center for Atmospheric Research (NCAR) has received funding approval to survey prospective locations for the Coronal Solar Magnetism Observatory (COSMO).

Global Maps of the Magnetic Field in the Solar Corona

Graphic image of magnetic field model

An international team led by solar physicists from Peking University, China and National Center for Atmospheric Research (NCAR), USA, has recently measured the global magnetic field of the solar corona for the first time.

Convolutional Neural Networks for Predicting the strength of the Near-Earth Magnetic Field Caused by Interplanetary Coronal Mass Ejections

Image depicting examples of various initial GLOW configurations
Thursday, July 9, 2020

In this paper, regression-based deep convolutional neural networks (CNN), with 12 layers, are developed for predicting the maximal amplitude of the southward component of the near-Earth magnetic field from a passing interplanetary coronal mass ejection (ICME).

Partnership Continues with NASA's PSP and MLSO–WHPI

Graphic image of NASA's Parker Solar Probe

Beginning in January 2021, there are new plans underway for continued coordinated efforts between NASA's PSP seventh perihelion and the WHPI campaign.

Thermal Properties of Coronal Cavities

Graph depicting temperature of cavities and surrounding streamers
Tuesday, March 31, 2020

We have analyzed 33 cavities observed between 2012 and 2018, from solar activity maximum to minimum. For each cavity we applied a differential emission measure method to obtain both a temperature distribution and a value of the average temperature.

Temperature in a long-lived cavity

Graphic depicting Angstrom images of the cavity
Wednesday, December 11, 2019

Gibson et al. have analyzed a long-lived cavity observed from 17 March 2012 to 21 March 2012. For this cavity we applied a differential emission measure method to obtain both a temperature distribution and a value of the average temperature during all five observational days.

PUNCH will Change how we Look at Young Solar Wind

Graphic depicting the PUNCH mission (Image: SwRI)

NASA's recently-funded Small-Explorer (SMEX) mission, PUNCH (Polarimeter to UNify the Corona and Heliosphere), is targeted to launch in 2022.

Simulating the solar corona in the forbidden and permitted lines with forward modeling I: Saturated and unsaturated Hanle regimes

Graphic depicting Linear polarization azimuth
Thursday, October 3, 2019

The magnetic field in the corona is important for understanding solar activity. Linear polarization measurements inforbidden lines in the visible/IR provide information about coronal magnetic direction and topology.

Data-optimized coronal field model: 1. Proof of concept

Graphic depicting field-lines from a ground-truth flux-rope magnetic field model
Thursday, August 8, 2019

Deriving the strength and direction of the three-dimensional (3D) magnetic field in the solar atmosphere is fundamental for understanding its dynamics. Volume information on the magnetic field mostly relies on photospheric and/or chromospheric surface vector magnetic fields.

Solar Prominences: Theory and models (Fleshing out the magnetic skeleton)

Painting the dips of a magnetic skeleton results in sheet-like prominences
Friday, August 24, 2018

Magnetic fields suspend the relatively cool material of solar prominences in an otherwise hot corona. A comprehensive understanding of solar prominences ultimately requires complex and dynamic models, constrained and validated by observations spanning the solar atmosphere.

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