An Atlas of ISO SWS Spectra: The Transition from AGB Stars to PNe

Details An Atlas of ISO SWS Spectra: The Transition from AGB Stars to PNe An Atlas of ISO SWS Spectra: The Transition from AGB Stars to PNe

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001assl..265..329g&link_type=abstract

Post-AGB Objects as a Phase of Stellar Evolution, Proceedings of the Toruń Workshop held July 5-7, 2000. Edited by R. Szczerba a

Astronomy and Astrophysics

Astrophysics

Scientific paper

The ISO Data Archive has been searched for stars observed with the Short Wavelength Spectrograph (SWS) in the transition phase between the Asymptotic Giant Branch (AGB) and the Planetary Nebula (PN) stage. More than 350 sources have been identified with a reasonable signal-to-noise SWS01 spectrum corresponding to 77 original ISO proposals. The selected spectra have been classified according to their chemical characteristics (C-rich or O-rich) and overall spectral energy distribution from 2 to 45 microns. Based on the analysis made, an evolutionary scheme is proposed which reproduces the temporal evolution of the far infrared spectra of stars in this short and still poorly known transition phase.

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