High dispersion two-dimensional spectroscopy of planetary nebulae

Details High dispersion two-dimensional spectroscopy of planetary nebulae High dispersion two-dimensional spectroscopy of planetary nebulae

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004asthe..97..351o&link_type=abstract

The Astronomical Herald (ISSN 0374-2466), Vol. 97, No. 6, p. 351 - 360 (2004)

Astronomy and Astrophysics

Astronomy

Planetary Nebulae, Spectroscopy

Scientific paper

Planetary nebulae (PNe) are known as objects which are situated in the final evolutionary stage of the relatively less massive stars, and show various shapes. Classification of PN structure has been strongly dependent on direct two-dimensional images projected onto the sky. Such images are often insufficient to fully understand the real three-dimensional structure of PNe. Since most of studies on PNe are involved in the morphology, it is important to recognize precisely their structure. It is essential to examine the velocity fields as the information along the line of sight in addition to the projected spatial information by images. Here, we show our recent results on a peculiar PN obtained by the high-dispersion two-dimensional spectroscopy, which allowed a precise determination of its morphology as bipolar.

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