Results 61 to 70 of about 179 (144)
RR Lyrae Variable Stars in the Dwarf Spheroidal Galaxy Leo I
The Astrophysical Journal, 2001 We report the discovery of a significant population of RR Lyrae variables in the dwarf spheroidal galaxy Leo I. Based on 40 V and 22 B images of the galaxy taken using the ESO Wide Field Imager we have identified so far 74 candidate RR Lyrae's in two CCD's hosting the main body of the galaxy.
Held, E. V. +5 more
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Exploring RR Lyrae Variable Stars in the Vera C. Rubin Observatory Data Preview 1
The Astronomical JournalWe investigate the properties of known RR Lyrae in the Vera C. Rubin Observatory Data Preview 1 (DP1) fields and compare those with the predictions based on stellar pulsation models tailored to the Legacy Survey of Space and Time filters.
Chow-Choong Ngeow, Anupam Bhardwaj
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A Search for Rapid Variables and RR Lyrae Stars in the LMC on ESO Schmidt Plates [PDF]
Symposium - International Astronomical Union, 1975 This is a very preliminary report about a search for rapid variables in extended fields of the Large Magellanic Cloud.
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Classification for 969 Double-mode RR Lyrae Stars from Zwicky Transient Facility
The Astrophysical Journal Supplement SeriesRR Lyrae (RRL) variable stars are cornerstone distance indicators. In particular, double-mode RR Lyrae (RRd) stars enable period–luminosity relations (PLRs) that are less sensitive to metallicity, reducing systematic biases in distance measurements ...
Jianxing Zhang +4 more
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The Privileged Life of a Theoretical Observer. [PDF]
Sol Phys, 2022 Gough D.
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LOW-AMPLITUDE VARIABLES: DISTINGUISHING RR LYRAE STARS FROM ECLIPSING BINARIES
The Astronomical Journal, 2010 12 pages, accepted to ...
Kinman, T. D., Brown, Warren R.
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The Astrophysical Journal Supplement SeriesUtilizing Zwicky Transient Facility (ZTF) data and existing RR Lyrae stars (RRLs) catalogs, this study achieves the first calibration of the P − ϕ _31 − R _21 − [Fe/H] and P − ϕ _31 − A _2 − A _1 − [Fe/H] relations in the ZTF photometric system for RRab ...
Shun-Xuan He +7 more
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The Astronomical JournalThe Draco Dwarf spheroidal (dSph) galaxy is one of the nearest and the most dark-matter-dominated satellites of the Milky Way. We obtained multiepoch near-infrared (NIR, JHK _s ) observations of the central region of Draco dSph covering a sky area of ∼21′
Anupam Bhardwaj +6 more
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Nonradial modes in RR Lyrae stars from the OGLE Collection of Variable Stars
, 2016 The Optical Gravitational Lensing Experiment (OGLE) is a great source of top-quality photometry of classical pulsators. Collection of variable stars from the fourth part of the project contains more than 38 000 RR Lyrae stars. These stars pulsate mostly in the radial fundamental mode (RRab), in radial first overtone (RRc) or in both modes ...
Netzel, Henryka +2 more
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The Astrophysical JournalPulsating stars are universally recognized as precise distance indicators and tracers of stellar populations. Their variability, combined with well-defined relationships between pulsation properties and intrinsic evolutionary parameters such as ...
Giulia De Somma +3 more
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