arXiv subjects

S. Kwok

Publications and source records attributed to S. Kwok.

20 records · Page 2Linked to original sources

arXiv2000

HST NICMOS Observation of Proto-Planetary Nebulae

We report NICMOS wide-band and polarimetric observations of four proto-planetary nebulae. Molecular hydrogen emission is detected near the ends of the bipolar lobes of IRAS 17150-3224, which is evidence for the interaction of a fast, collimated outflow with the remnant of the asymptotic giant branch wind.

astro-ph↗

arXiv2000

2-D Radiation Transfer Model of Non-Spherically Symmetric Dust Shell in P roto-Planetary Nebulae

We have fitted the HST images and the spectral energy distributions (SEDs) of three proto-planetary nebulae (PPN) with a 2-D radiation transfer model. The geometric and mass loss properties of these PPN are also derived.

astro-ph↗