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AGB and post-AGB objects in the outer Galaxy

Published online by Cambridge University Press:  08 August 2017

Ryszard Szczerba ,
Bosco H. K. Yung ,
Marta Sewiło ,
Natasza Siódmiak  and
Agata Karska
Ryszard Szczerba
Affiliation:
Nicolaus Copernicus Astronomical Centre, PAS, ul. Rabiańska 8, 87-100 Toruń, Poland
Bosco H. K. Yung
Affiliation:
Nicolaus Copernicus Astronomical Centre, PAS, ul. Rabiańska 8, 87-100 Toruń, Poland
Marta Sewiło
Affiliation:
NASA Goddard Space Flight Center, 8800 Greenbelt Rd., Greenbelt, MD 20771, USA Astronomical Observatory of the Jagiellonian University, ul. Orla 171, 30-244 Kraków, Poland
Natasza Siódmiak
Affiliation:
Nicolaus Copernicus Astronomical Centre, PAS, ul. Rabiańska 8, 87-100 Toruń, Poland
Agata Karska
Affiliation:
Centre for Astronomy, Nicolaus Copernicus University, Faculty of Physics, Astronomy and Informatics, ul. Grudziadzka 5, 87-100 Torun, Poland
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Abstract

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We present the results of our search for low- and intermediate mass evolved stars in the outer Galaxy using AllWISE catalogue photometry. We show that the [3.4]−[12] vs. [4.6]−[22] colour-colour diagram is most suitable for separating C-rich/O-rich AGB and post-AGB star candidates. We are able to select 2,510 AGB and 24,821 post-AGB star candidates. However, the latter are severely mixed with the known young stellar objects in this diagram.

Keywords

Astronomical data bases: miscellaneousStars: AGB and post-AGBInfrared: stars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S323: Planetary Nebulae: Multi-Wavelength Probes of Stellar and Galactic Evolution , October 2016 , pp. 369 - 370
Copyright
Copyright © International Astronomical Union 2017 

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