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  Newly discovered Planetary Nebulae population in Andromeda (M31): PN Luminosity function and implications for the late stages of stellar evolution

Bhattacharya, S., Arnaboldi, M., Hartke, J., Gerhard, O., Comte, V., McConnachie, A., et al. (2018). Newly discovered Planetary Nebulae population in Andromeda (M31): PN Luminosity function and implications for the late stages of stellar evolution. In F. Kerschbaum, M. Groenewegen, & H. Olofsson (Eds.), Why Galaxies Care About AGB Stars: A Continuing Challenge through Cosmic Time (pp. 201-205). Cambridge, UK: Cambridge University Press. doi:10.1017/S1743921318005446.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-68B7-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-68B8-6
Genre: Conference Paper

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 Creators:
Bhattacharya, Souradeep, Author
Arnaboldi, Magda, Author
Hartke, Johanna, Author
Gerhard, Ortwin1, Author              
Comte, Valentin, Author
McConnachie, Alan, Author
Harris, William E., Author
Affiliations:
1Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159895              

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 Abstract: Stars with masses between ∼0.7 and 8 M⊙ end their lives as Planetary Nebulae (PNe). With the MegaCam at CFHT, we have carried out a survey of the central 16 sq. degrees of Andromeda (M31) reaching the outer disk and halo, using a narrow-band [OIII]5007 and a broad-band g filter. This survey extends previous PN samples both in uniform area coverage and depth. We identify ∼4000 PNe in M31, of which ∼3000 are new discoveries. We detect PNe down to ∼6 mag below the bright cut-off of the PN luminosity function (PNLF), ∼2 mag deeper than in previous works. We detect a steep rise in the number of PNe at ∼4.5 mag fainter than the bright cut-off. It persists as we go radially outwards and is steeper than that seen in the Magellanic clouds. We explore possible reasons for this rise, which give insights into the stellar population of M31.

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Language(s): eng - English
 Dates: 2019-12-302018-08
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1017/S1743921318005446
Other: LOCALID: Reihe: IAU...343, pp.201-205
 Degree: -

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Title: 343nd Symposium of the International Astronomical Union
Place of Event: Vienna, AUSTRIA
Start-/End Date: 2018-08-20 - 2018-08-23

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Title: Why Galaxies Care About AGB Stars: A Continuing Challenge through Cosmic Time
Source Genre: Proceedings
 Creator(s):
Kerschbaum, Franz , Editor
Groenewegen, Martin , Editor
Olofsson, Hans , Editor
Affiliations:
-
Publ. Info: Cambridge, UK : Cambridge University Press
Pages: - Volume / Issue: 14 Sequence Number: - Start / End Page: 201 - 205 Identifier: ISBN: 9781108471619

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Title: Proceedings of the International Astronomical Union
Source Genre: Series
 Creator(s):
International Astronomical Union, Editor              
Affiliations:
-
Publ. Info: Cambridge, UK : Cambridge University Press
Pages: - Volume / Issue: 14/S343 Sequence Number: - Start / End Page: - Identifier: ISSN: 1743-9213