The Probable Low Excitation Planetary Nebula M3-44
نویسندگان
چکیده
منابع مشابه
Tomography of the low excitation planetary nebula NGC 40
Spatially resolved, long-slit echellograms at different position angles of the bright, low excitation planetary nebula NGC 40 indicate that the higher the gas excitation, the faster the radial motion, thus confirming the overturn of the Wilson law already suggested by Sabbadin & Hamzaoglu (1982). New reduction procedures, giving the radial trends of the electron density and of the ionic and che...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1989
ISSN: 0074-1809
DOI: 10.1017/s0074180900137520