SIMBAD references

2019MNRAS.483.5150M - Mon. Not. R. Astron. Soc., 483, 5150-5165 (2019/March-2)

Luminous AGB variables in the dwarf irregular galaxy, NGC 3109.


Abstract (from CDS):

In a shallow near-infrared survey of the dwarf irregular galaxy, NGC 3109, near the periphery of the Local Group, we have found eight Mira variables, seven of which appear to be oxygen-rich (O-Miras). The periods range from about 430 d to almost 1500 d. Because of our relatively bright limiting magnitude, only 45 of the more than 400 known carbon stars were measured, but none was found to be a large amplitude variable. One of the Miras may be an unrecognized C star. Five of the O-Miras are probably hot-bottom burning stars considering that they are brighter than expected from the period-luminosity relation of Miras and that, by comparison with theoretical evolutionary tracks, they appear to have masses ≳4 M_☉. A census of very long period (P > 1000 d) Miras in the Galaxy and Magellanic Clouds is presented and discussed together with the newly discovered long-period, but relatively blue, variables in NGC 3109. New JHKL photometry is presented for three O-rich long-period Miras in the Small Magellanic Cloud (including a candidate super-AGB star).

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: AGB and post-AGB - stars: variables: general - galaxies: individual: NGC 3109 - Local Group - infrared: stars

Status in Simbad:  waiting for electronic table

CDS comments: Tables A1-A2: objects in IC 1613 = [MWF2015]; objects in NGC 6822 = [WMF2013].

Simbad objects: 91

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