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Spectroscopic Study of a Quiescent Prominence

Published online by Cambridge University Press:  12 April 2016

Y.D. Park ,
H.S. Yun ,
K. Ichimoto ,
K.J. Sim  and
Y-J. Moon
Y.D. Park
Affiliation:
Korea Astronomy Observatory, San 36-1, Whaam-dong, Yuseong-gu, Taejeon 305-348, Korea
H.S. Yun
Affiliation:
Department of Astronomy, Seoul National University, Seoul 151-742, Korea
K. Ichimoto
Affiliation:
Solar Physics Division, National Astronomical Observatory of Japan, Mitaka, Tokyo 181, Japan
K.J. Sim
Affiliation:
Korea Astronomy Observatory, San 36-1, Whaam-dong, Yuseong-gu, Taejeon 305-348, Korea
Y-J. Moon
Affiliation:
Korea Astronomy Observatory, San 36-1, Whaam-dong, Yuseong-gu, Taejeon 305-348, Korea

Abstract

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We have analyzed a set of spectra of Hα and CaII H & K lines taken from a quiescent prominence with the G1 CCD camera attached to a 25 cm coronagraph at the Norikura Coronal Station, the National Astronomical Observatory of Japan. From these lines we have determined temperature, turbulent velocity and electron density at various locations on the prominence. The final analysis shows that the averaged temperature of the prominence is about 8600K with mean turbulent velocity of 7.5 km/s and with a mean electron density of < ne > = 2.4×1010cm−3.

Type
Filaments and Their Environment
Information
International Astronomical Union Colloquium , Volume 167: New Perspectives on Solar Prominences , 1998 , pp. 217 - 220
Copyright
Copyright © Astronomical Society of the Pacific 1998

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