80 citations · 160 across the 6 of their papers we have counts for
6 papers
Detection of Gravity Modes in RR Lyrae Stars
Merieme Chadid
We report the detection of gravity modes in RR Lyrae stars. Thanks to PAIX, the first Antarctica polar photometer. Unprecedented and uninterrupted U BV RI time-series photometric g…
The Axial Rotation and Variable Macroturbulence of RR Lyrae and Red Horizontal Branch Stars
George W. Preston, Christopher Sneden, Merieme Chadid +2
We have derived relations between full-width-half-maxima and equivalent widths of metallic absorption lines in the spectra of RR~Lyrae stars to estimate new upper limits on the axi…
The RRC Stars: Chemical Abundances and Envelope Kinematics
Christopher Sneden, George W. Preston, Merieme Chadid +1
We analyzed series of spectra obtained for twelve stable RRc stars observed with the echelle spectro- graph of the du Pont telescope at Las Campanas Observatory and we analyzed the…
Optical Turbulence Characterization at LAMOST Site: Observations and Models
L. -Y. Liu, C. Giordano, Y. -Q. Yao +5
Atmospheric optical turbulence seriously limits the performance of high angular resolution instruments. An 8-night campaign of measurements was carried out at the LAMOST site in 20…
Discovery of Peculiar Double-Mode Pulsations and Period Doubling in KEPLER RRc Variables
P. Moskalik, R. Smolec, K. Kolenberg +6
We analyzed the Long Cadence photometry of 4 first overtone RR Lyr-type stars (RRc stars) observed by the KEPLER telescope. All studied variables are multiperiodic. The strongest s…
Kepler photometry of the prototypical Blazhko star RR Lyr: An old friend seen in a new light
K. Kolenberg, S. Bryson, R. Szabó +18
We present our analysis of the long cadence Kepler data for the well-studied Blazhko star RR Lyr, gathered during the first two quarters of the satellite's observations and coverin…