منابع مشابه
The tetra - lobed planetary nebula NGC 1501
Direct imagery and long-slit, spatially resolved echellograms of the high excitation planetary nebula NGC 1501 allowed us to study in detail the expansion velocity field, the physical conditions (electron temperature, electron density, ionization) and the spatial distribution of the nebular gas. An electron temperature of 11500 K and a turbulence of 18 km s−1 are derived by comparing the Hα and...
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Direct imagery and long-slit, spatially resolved echellograms of the high excitation planetary neb-ula NGC 1501 allowed us to study in detail the expansion velocity field, the physical conditions (electron temperature , electron density, ionization) and the spatial distribution of the nebular gas. An electron temperature of 11500 K and a turbulence of 18 km s −1 are derived by comparing the Hα ...
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ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2011
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921312012070