230. The Oosterhoff dichotomy

The Oosterhoff dichotomy is a long-standing problem in the understanding of Galactic globular clusters. It refers to the fact that clusters divide into two distinct groups according to the average period of their RR Lyrae stars pulsating in the fundamental mode. I outline the problem, and show how Gaia is advancing our knowledge, relating it to the ancient merger debris in our Galaxy's halo.

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2025-05-26
DOI
https://doi.org/10.5281/zenodo.15661571
Primary Topic
Glycosylation and Glycoproteins Research
Type
article
Field-Weighted Citation Impact
0.00
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article

230. The Oosterhoff dichotomy

Zenodo (CERN European Organization for Nuclear Research)
Glycosylation and Glycoproteins Research
article

230. The Oosterhoff dichotomy

article en

Abstract

The Oosterhoff dichotomy is a long-standing problem in the understanding of Galactic globular clusters. It refers to the fact that clusters divide into two distinct groups according to the average period of their RR Lyrae stars pulsating in the fundamental mode. I outline the problem, and show how Gaia is advancing our knowledge, relating it to the ancient merger debris in our Galaxy's halo.

Zenodo (CERN European Organization for Nuclear Research)
Openalex Percentile: Top 55%
Glycosylation and Glycoproteins Research
DOIOpen Access PDFOpenAlex
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230. The Oosterhoff dichotomy · Zenodo (CERN European Organization for Nuclear Research) (2025) | TGRS Research Map | TGRS