Results 31 to 40 of about 995 (187)
Catalogue of variable stars in Milky Way globular clusters
EPJ Web of Conferences, 2017 Globular cluster variable stars have been studied for more than a century. In the early investigations, more than 90% of the known variables were of the RR Lyrae type.
Clement Christine
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RR Lyrae variables in the globular cluster M 5 [PDF]
Astronomy and Astrophysics Supplement Series, 2000 accepted for publication in Astronomy and Astrophysics, 15 pages with 6 ...
Kaluzny, J. +5 more
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FREQUENCY ANALYSIS OF PHOTOGRAPHIC OBSERVATIONS OF PULSATING STARS
Odessa Astronomical Publications, 2017 The Fourier analysis are performed for photoelectric and photographic B-observations (Goranskij and Shugarov, 1979) of RR Lyrae star RW Ari. Besides the main frequency f0 and four its first harmonics two more frequencies are found: f1 =f0 /3 and f2 =0 ...
V. P. Bezdenezhnyi
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Absolute Magnitudes of RR Lyrae Variables [PDF]
Highlights of Astronomy, 1971 My remarks concern the kinematics of a-type RR Lyrae variables with large ∆s(≥5), supposedly halo members, which have relatively well determined proper motions (μ) and radial velocities (ϱ) as well as accurate photoelectric photometry (m). The number of variables fulfilling these criteria is about 60.
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Photometric Metallicity and Distance Estimates for ∼136,000 RR Lyrae Stars from Gaia Data Release 3
The Astrophysical Journal, 2023 We present a sample of 135,873 RR Lyrae stars (RRLs) with precise photometric metallicity and distance estimates from our newly calibrated P – ϕ _31 – R _21 –[Fe/H]/ P – R _21 –[Fe/H] and G -band absolute magnitude–metallicity relations.
Xin-Yi Li +4 more
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RR Lyrae binary systems in the Galactic bulge
EPJ Web of Conferences, 2017 The possibility of a direct mass measurement of RR Lyrae variable stars in binary systems has remained elusive for many years, due to the apparent paucity of such systems.
Hajdu Gergely, Catelan Márcio
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The Astrophysical Journal Letters, 2023 RR Lyrae variables are excellent Population II distance indicators thanks to their well-defined period–luminosity relations (PLRs) at infrared wavelengths.
Anupam Bhardwaj +11 more
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Progress report on the K2 RR Lyrae survey
EPJ Web of Conferences, 2017 We have initiated a large survey with K2, to observe thousands of RR Lyrae stars along the ecliptic. The high photometric precision and the 70-90-day continuous coverage will allow us to investigate the light variation of these galactic structure tracer ...
Szabó Róbert
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Candidate RR Lyrae Associated with the Ultrafaint Dwarf Galaxy Aquarius III
The Astronomical JournalWe report the search of RR Lyrae in the vicinity of a newly discovered ultrafaint dwarf galaxy, Aquarius III. Based on the known RR Lyrae catalogs and gri -band light curves retrieved from public archives, we identified a RR Lyrae with distance ...
Chow-Choong Ngeow, Anupam Bhardwaj
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Search for the Blazhko Effect in Field RR Lyrae Stars Using LINEAR and ZTF Light Curves
The Astronomical JournalWe analyzed the incidence and properties of RR Lyrae stars that show evidence for amplitude and phase modulation (the so-called Blazhko Effect) in a sample of ∼3000 stars with LINEAR and ZTF light curve data collected during the periods of 2002–2008 and ...
Ema Donev, Željko Ivezić
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