Dusty post-red giant branch stars (post-RGB) stars in the Magellanic Clouds

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

In our recent search for post-AGB stars in the Magellanic Clouds, we discovered a new class of low-luminosity, low-metallicity, dusty, evolved objects. These objects have dust excesses, stellar parameters and spectral energy distributions similar to those of dusty post-Asymptotic Giant Branch (post-AGB) stars. However, they have lower luminosities and hence smaller masses. We suggest that they have evolved off the Red Giant Branch (RGB) instead of the AGB as a result of binary interaction. Galactic counterparts are not known due to the poorly constrained distances of dusty post-AGB-like objects in the Galaxy. Here, we present the first observational evidence these new dusty, low-luminosity "post-RGB" objects and we aim to place these objects in an evolutionary context.

Original languageEnglish
Title of host publicationThe Physics of evolved stars
Subtitle of host publicationA conference dedicated to the memory of Olivier Chesneau
EditorsE. Lagadec, F. Millour, T. Lanz
Place of PublicationNice, France
PublisherEDP Sciences
Pages129-134
Number of pages6
ISBN (Electronic)9782759819072
DOIs
Publication statusPublished - 1 Dec 2015
Externally publishedYes
EventThe Physics of Evolved Stars: A Conference Dedicated to the Memory of Olivier Chesneau - Nice, France
Duration: 8 Jun 201512 Jun 2015

Publication series

NameEAS Publications Series
Volume71-72
ISSN (Print)1633-4760
ISSN (Electronic)1638-1963

Conference

ConferenceThe Physics of Evolved Stars: A Conference Dedicated to the Memory of Olivier Chesneau
CountryFrance
CityNice
Period8/06/1512/06/15

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