The Variability of the Solar Coronal Helium Abundance: Polar Coronal Holes Compared to the Quiet Sun

The Astrophysical Journal ◽

10.1086/375395 ◽

2003 ◽

Vol 591 (2) ◽

pp. 1257-1266 ◽

Author(s):

J. Martin Laming ◽

Uri Feldman

Keyword(s):

Coronal Holes ◽

Helium Abundance ◽

Quiet Sun ◽

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Helium abundance and speed difference between helium ions and protons in the solar wind from coronal holes, active regions, and quiet Sun

Monthly Notices of the Royal Astronomical Society ◽

10.1093/mnras/sty1211 ◽

2018 ◽

Vol 478 (2) ◽

pp. 1884-1892 ◽

Author(s):

Hui Fu ◽

Maria S Madjarska ◽

Bo Li ◽

Lidong Xia ◽

Zhenghua Huang

Keyword(s):

Coronal Holes ◽

Active Regions ◽

Helium Abundance ◽

Helium Ions ◽

Quiet Sun ◽

Speed Difference

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Medium-Term Prediction of Relativistic Electron Fluxes in a Geostationary Orbit Using Machine Learning Methods Based on Observations of Solar Coronal Holes

Geomagnetism and Aeronomy ◽

10.1134/s0016793220030123 ◽

2020 ◽

Vol 60 (3) ◽

pp. 279-288

Author(s):

I. N. Myagkova ◽

Yu. S. Shugai ◽

V. V. Kalegaev ◽

V. A. Kolmogorova ◽

S. A. Dolenko

Keyword(s):

Machine Learning ◽

Relativistic Electron ◽

Coronal Holes ◽

Geostationary Orbit ◽

Medium Term ◽

Learning Methods ◽

Machine Learning Methods ◽

Term Prediction ◽

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Differentiating Coronal Holes from the Quiet Sun by He 1083 nm Imaging Spectroscopy

Solar Physics ◽

10.1007/s11207-005-4972-z ◽

2005 ◽

Vol 226 (1) ◽

pp. 3-16 ◽

Author(s):

O. V. Malanushenko ◽

H. P. Jones

Keyword(s):

Coronal Holes ◽

Imaging Spectroscopy ◽

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Models for Solar Coronal Holes.

10.21236/ada063195 ◽

1978 ◽

Author(s):

George L. Withbroe

Keyword(s):

Coronal Holes ◽

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Physical Conditions in Solar Coronal Holes on the Base of Non-LTE Calculations

The Dynamic Sun - Astrophysics and Space Science Library ◽

10.1007/978-94-010-0760-3_14 ◽

2001 ◽

pp. 235-238

Author(s):

E. Malanushenko ◽

E. Baranovsky

Keyword(s):

Coronal Holes ◽

Physical Conditions ◽

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On the Derivation of Empirical Limits on the Helium Abundance in Coronal Holes below 1.5 R s

The High Latitude Heliosphere ◽

10.1007/978-94-011-0167-7_6 ◽

1995 ◽

pp. 39-44

Author(s):

Shadia Rifai Habbal ◽

Ruth Esser

Keyword(s):

Coronal Holes ◽

Helium Abundance

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Heating solar coronal holes

The Astrophysical Journal ◽

10.1086/170015 ◽

1991 ◽

Vol 372 ◽

pp. 719 ◽

Author(s):

E. N. Parker

Keyword(s):

Coronal Holes ◽

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The Chromosphere in Coronal Holes and the Quiet-Sun Network: An H[CLC]e[/CLC] [CSC]i[/CSC] (584 Å) Full-Disk Scan by SUMER/[ITAL]SOHO[/ITAL]

The Astrophysical Journal ◽

10.1086/312214 ◽

1999 ◽

Vol 522 (1) ◽

pp. L77-L80 ◽

Author(s):

H. Peter

Keyword(s):

Coronal Holes ◽

Quiet Sun ◽

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THE FIRST STRAY LIGHT CORRECTED EXTREME-ULTRAVIOLET IMAGES OF SOLAR CORONAL HOLES

The Astrophysical Journal ◽

10.1088/2041-8205/749/1/l8 ◽

2012 ◽

Vol 749 (1) ◽

pp. L8 ◽

Author(s):

Paul Shearer ◽

Richard A. Frazin ◽

Alfred O. Hero III ◽

Anna C. Gilbert

Keyword(s):

Extreme Ultraviolet ◽

Coronal Holes ◽

Stray Light ◽

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Periodic processes and plasma motions in solar coronal holes

Astronomy Reports ◽

10.1134/s1063772907090077 ◽

2007 ◽

Vol 51 (9) ◽

pp. 773-779 ◽

Author(s):

N. I. Kobanov ◽

A. A. Sklyar

Keyword(s):

Coronal Holes ◽

Periodic Processes ◽

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