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astro-ph2000
Properties of Proto--Planetary Nebulae
M. Meixner
This review describes some general properites of proto-planetary nebulae with particular emphasis on the recent work of morpholgical studies. The weight of observational evidence s…
astro-ph2000
The Circumstellar Matter Around OH44.8-2.3
M. Bobrowsky, B. W. Greeley, T. Ueta +1
I-band images of the OH maser source OH44.8-2.3 are presented. Having a well-determined distance, this object is shown to be very young and physically small, with an asymmetric com…