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2025RNAAS...9...98C - Research Notes of the AAS, 9, 98 (2025/April-0)

Anomalous Cepheids in Crater II.

COOKE M.J. and VIVAS A.K.

Abstract (from CDS):

Fifteen Anomalous Cepheid (ACeph) candidates were recently identified in the dwarf galaxy Crater II via an extended survey done with the Dark Energy Camera at the 4 m Blanco Telescope at Cerro Tololo Inter-American Observatory (CTIO). Using various Period-Luminosity relationships found in the literature, we anchor these candidates to the nearby RR-Lyrae stars' distances to confirm 14 of the candidates as not only being ACephs, but as confidently belonging to Crater II rather than the field within the line-of-sight.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Dwarf galaxies - Dwarf irregular galaxies - Stellar populations - Galaxy stellar content - Anomalous Cepheid variable stars - Periodic variable stars - RR Lyrae variable stars - Variable stars

Simbad objects: 2

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