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Title: Transient Mass-loss Analysis of Solar Observations Using Stellar Methods

Abstract

Low-frequency dynamic spectra of radio bursts from nearby stars offer the best chance to directly detect the stellar signature of transient mass loss on low-mass stars. Crosley et al. (2016) proposes a multi-wavelength methodology to determine coronal mass ejection (CME) parameters, such as speed, mass, and kinetic energy. We test the validity and accuracy of the results derived from the methodology by using Geostationary Operational Environmental Satellite X-ray observations and Bruny Island Radio Spectrometer radio observations. These are analogous observations to those that would be found in the stellar studies. Derived results from these observations are compared to direct white light measurements of the Large Angle and Spectrometric Coronagraph. We find that, when a pre-event temperature can be determined, the accuracy of CME speeds are within a few hundred km s{sup −1}, and are reliable when specific criteria has been met. CME mass and kinetic energies are only useful in determining the approximate order of magnitude measurements when considering the large errors associated to them. These results will be directly applicable to the interpretation of any detected stellar events and the derivation of stellar CME properties.

Authors:
;  [1];  [2]
  1. Johns Hopkins University, Department of Physics and Astronomy, 3400 N. Charles Street, Baltimore, MD 21218 (United States)
  2. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)
Publication Date:
OSTI Identifier:
22663257
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 845; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCURACY; APPROXIMATIONS; COMPARATIVE EVALUATIONS; COSMIC RADIO SOURCES; DATA ANALYSIS; GOES SATELLITES; MASS TRANSFER; SPECTRA; SPECTROMETERS; STARS; STELLAR CORONAE; STELLAR WINDS; VELOCITY; VISIBLE RADIATION; WAVELENGTHS; X RADIATION

Citation Formats

Crosley, M. K., Norman, C., and Osten, R. A. Transient Mass-loss Analysis of Solar Observations Using Stellar Methods. United States: N. p., 2017. Web. doi:10.3847/1538-4357/AA7EDC.
Crosley, M. K., Norman, C., & Osten, R. A. Transient Mass-loss Analysis of Solar Observations Using Stellar Methods. United States. doi:10.3847/1538-4357/AA7EDC.
Crosley, M. K., Norman, C., and Osten, R. A. Thu . "Transient Mass-loss Analysis of Solar Observations Using Stellar Methods". United States. doi:10.3847/1538-4357/AA7EDC.
@article{osti_22663257,
title = {Transient Mass-loss Analysis of Solar Observations Using Stellar Methods},
author = {Crosley, M. K. and Norman, C. and Osten, R. A.},
abstractNote = {Low-frequency dynamic spectra of radio bursts from nearby stars offer the best chance to directly detect the stellar signature of transient mass loss on low-mass stars. Crosley et al. (2016) proposes a multi-wavelength methodology to determine coronal mass ejection (CME) parameters, such as speed, mass, and kinetic energy. We test the validity and accuracy of the results derived from the methodology by using Geostationary Operational Environmental Satellite X-ray observations and Bruny Island Radio Spectrometer radio observations. These are analogous observations to those that would be found in the stellar studies. Derived results from these observations are compared to direct white light measurements of the Large Angle and Spectrometric Coronagraph. We find that, when a pre-event temperature can be determined, the accuracy of CME speeds are within a few hundred km s{sup −1}, and are reliable when specific criteria has been met. CME mass and kinetic energies are only useful in determining the approximate order of magnitude measurements when considering the large errors associated to them. These results will be directly applicable to the interpretation of any detected stellar events and the derivation of stellar CME properties.},
doi = {10.3847/1538-4357/AA7EDC},
journal = {Astrophysical Journal},
number = 1,
volume = 845,
place = {United States},
year = {Thu Aug 10 00:00:00 EDT 2017},
month = {Thu Aug 10 00:00:00 EDT 2017}
}