Active Phenomena of Solar Prominences and Filaments

1. Name of Database:  Active Phenomena of Solar Prominences and Filaments
 
2. Institution:　 Kwasan & Hida Observatories,
                  Graduate school of Science, Kyoto University

3. Contents of Database:

These are edited with an intension to promote co-analyses of solar eruptive phenomena observed 
with different instruments in different wavelengths, and to inform when and which kind of 
phenomena appeared on the solar surface which affected our solar-terrestrial environment.
This database includes H-alpha images of solar active phenomena observed by the Flare Monitor 
Telescope (FMT) at Hida Observatory, Kyoto University. 
The FMT simultaneously obtains five kinds of solar full disk images; 
 (1) H-alpha line center image, 
 (2) H-alpha - 0.8 angstrom (blue shifted) image,
 (3) H-alpha + 0.8 angstrom (red shifted) image, 
 (4) H-alpha prominence image (with occulting disk), 
 (5) Sunspot image in a red continuum.

In this database, we supply the following two kinds of image data;

 1) Active Phenomena in H-alpha - 0.8 A 
   (Filament Activities and H-alpha Surges on the Solar Disk)

All transient phenomena, which were classified into middle or large size with the blue-shifted image 
data of FMT, are copied on CD-Rs for each month. (The blue-shifted images are especially useful to 
indentify eruptive solar active phenomena which affects solar-terrestrial environment.)
An event list is appended in HTML-format to each CD-R. By opening this list with a browser, you can 
know start and end times, position on the solar disk, type, and size of each event. If you crick an 
event on the list, you can move to the directory in which the image data of the event are stored.
Three kinds of image sets (H-alpha, H-alpha - 0.8, H-alpha + 0.8) for each event can be accessed from 
5 min before the start time to 5min after the end time with the interval of 1 min. With these data, 
you can study the evolutional changes of shapes and dynamical structures of the event.

 2) Active Phenomena in Prominence Images 
   (Prominence Activities on the Solar Limb)

All phenomena, which show conspicuous activities in the limb-prominence images of FMT are copied on 
CD-Rs for each month. 
(These limb events must be useful to study the radial or vertical structures of solar active phenomena.)
An event list is appended in HTML-format to each CD-R. By opening this list with a browser, you can 
know start, maximum and end times, position on the solar limb, type of activity, height and length of 
each recorded phenomenon. 
If you crick an event on this list, you can move to the directory in which the image data of the event 
are stored.
The two kinds of image sets (H-alpha prominence and H-alpha center) for each event can be accessed from 
5 min before the start time to 5min after the end time with the interval of 1 min. With these data, you 
can study the evolutional changes of shapes and dynamical structures of prominences and chromospheric 
activities near the solar limb.

These event lists are also accessible on WWW at the following URL.
http://www.kwasan.kyoto-u.ac.jp/Hida/FMT/obs-report.html


Reference: H.Kurokawa, K.Ishiura, G.Kimura, Y.Nakai, R.Kitai, Y.Funakoshi, and T.Shinkawa 
"Observations of Solar H alpha Filament Disappearances with a New Solar Flare-Monitoring-Telescope at 
Hida Observatory" 
J.Geomag.Geoelectr., 47, 1043-1052, 1995

5. Contact:

　Prof. Hiroki Kurokawa
　Kwasan Observatory,
　Graduate school of Science, Kyoto University
　17 Ohmine-tyo, Kitakazan, Yamashina,
　Kyoto 607-8471, Japan.
　TEL: 81-75-581-1235    FAX: 81-75-593-9617
　E-mail: kurokawa[AT]kwasan.kyoto-u.ac.jp

6. Public Offering of Database:

　The URL of public offering of these event lists:
　http://www.kwasan.kyoto-u.ac.jp/Hida/FMT/obs-report.html

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