The Oosterhoff Dichotomy in the Galactic Bulge

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F18%3A00499856" target="_blank" >RIV/67985815:_____/18:00499856 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The Oosterhoff Dichotomy in the Galactic Bulge
Original language description
We explore the possibility that the Oosterhoff dichotomy in fundamental-mode RR Lyrae stars exists also in the Galactic bulge. We utilized data from the OGLE-IV survey together with a recently published list of non-modulated RR Lyraes in this region. The aforementioned stars form two hook patterns in the Fourier parameter space. These structures can be well separated by dividing them in the period-I band amplitude plane, which resembles the division of Oosterhoff groups known from other samples of RR Lyrae stars. In addition, we compare detected Oosterhoff groups in the Galactic bulge with the two Oosterhoff populations in the Sagittarius dwarf galaxy, LMC, SMC, and globular clusters.
Czech name
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Czech description
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Project
<a href="/en/project/GC17-01752J" target="_blank" >GC17-01752J: Tautenburg-Ondřejov radial velocity follow-up of transiting planetary systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
The RR Lyrae 2017 Conference. Revival of the Classical Pulsators: from Galactic Structure to Stellar Interior Diagnostics
ISBN
9788393827992
ISSN
2545-1022
e-ISSN
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Number of pages
5
Pages from-to
"June (2018)"
Publisher name
Polskie Towarzystwo Astronomiczne
Place of publication
Warszawa
Event location
Niepołomice
Event date
Sep 17, 2017
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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