37 citations · 93 across the 9 of their papers we have counts for
9 papers · 1 filter
The VELOCE modulation zoo II. Humps and splitting patterns in spectral lines of classical Cepheids
H. Netzel, R. I. Anderson, G. Viviani
Line splitting in spectral lines is observed in various types of stars due to phenomena such as shocks, spectroscopic binaries, magnetic fields, spots, and non-radial modes. In pul…
Variable stars in galactic globular Clusters I. The population of RR Lyrae stars
Mauricio Cruz Reyes, Richard I. Anderson, Lucas Johansson +2
We present a comprehensive catalog of 2824 RR Lyrae stars (RRLs) residing in 115 Galactic globular clusters (GCs). Our catalog includes 1594 fundamental-mode (RRab), 824 first-over…
Blazhko effect and the Petersen diagram
H. Netzel
Pulsations in RR Lyrae stars and classical Cepheids were thought to be relatively simple since they typically pulsate only in one or two radial modes. This picture changes at a clo…
Detailed asteroseismic modeling of RR Lyrae stars with non-radial modes
H. Netzel, L. Molnar, M. Joyce
Photometric observations from the last decade have revealed additional low-amplitude periodicities in many classical pulsators that are likely due to pulsations in non-radial modes…
To Grow Old and Peculiar: A Survey of Anomalous Variable Stars in M80 and Age Determination using K2 and Gaia
László Molnár, Emese Plachy, Attila Bódi +11
The globular cluster Messier 80 was monitored by the Kepler space telescope for 80 days during the K2 mission. Continuous, high-precision photometry of such an old, compact cluster…
Time series analysis of bright TESS RRc stars: Additional modes, phase variations and more
J. M. Benkő, E. Plachy, H. Netzel +3
Using two years of data from the TESS space telescope, we have investigated the time series of 633 overtone pulsating field RR Lyrae (RRc) stars. The majority of stars (82.8 per ce…