CCD Photometry and Spectroscopy of IRAS Sources Having Far-IR Colors Similar to Planetary Nebulae

Details CCD Photometry and Spectroscopy of IRAS Sources Having Far-IR Colors Similar to Planetary Nebulae CCD Photometry and Spectroscopy of IRAS Sources Having Far-IR Colors Similar to Planetary Nebulae

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aj....112.2053r&link_type=abstract

Astronomical Journal v.112, p.2053

Astronomy and Astrophysics

Astronomy

17

Planetary Nebulae: General, Infrared: Stars, Infrared: Interstellar: Continuum

Scientific paper

CCD imaging and BVRI photometry of 14 IRAS sources with far-IR colors similar to planetary nebulae and post-AGB stars are presented. Also results of optical and near-IR spectroscopy of 10 of these candidates are given. From the observed flux distribution from 0.4 μm to 100 μm we find the presence of hot dust component in addition to the cold dust component. The stellar temperatures, luminosities and distances are estimated. We also estimated the parameters of the circumstellar dust envelopes. These results suggest that the 14 IRAS sources considered here are associated with post-AGB supergiants.

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