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Analysis on Internal Motions of the Halo Planetray Nebula, H4-1

Published online by Cambridge University Press:  26 May 2016

M. Otsuka ,
S. Tamura ,
Y. Yadoumaru  and
A. Tajitsu
M. Otsuka
Affiliation:
1 Astronomical Institute, Tohoku University, Sendai 980-8578, Japan
S. Tamura
Affiliation:
1 Astronomical Institute, Tohoku University, Sendai 980-8578, Japan
Y. Yadoumaru
Affiliation:
2 Misato Observatory, Wakayama, 640-1366, Japan
A. Tajitsu
Affiliation:
3 National Astronomical Observatory, NAOJ, Okayama, 719-0232, Japan

Extract

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Up to now, ten planetary nebulae are regarded as halo planetary nebulae (halo PNe). We obtained low- and moderate-dispersion spectra of the spatially resolved halo planetary nebula H4-1 in the wavelength region of λλ3700-6800 Å with the Cassegrain Spectrograph of 74-inch telescope at Okayama Astronomical Observatory. In the moderate dispersion observation, we were able to obtain [O III] λλ4959,5007 and Hα of H4-1 at several position angles (P.A.). The image was spatially resolved and its apparent angluar size should be less than 10″.0.

Type
Part VII: Nebular Morphology and Dynamics
Information
Symposium - International Astronomical Union , Volume 209: Planetary Nebulae: Their Evolution and Role in the Universe , 2003 , pp. 547 - 548
Copyright
Copyright © Astronomical Society of the Pacific 2003