29 citations · 32 across the 3 of their papers we have counts for
4 papers
An outlook on the estimate of the solar quadrupole moment from relativistic gravitation contributions
Jean-Pierre Rozelot, Ali Kilcik, Zahra Fazel
Of all the solar fundamental parameters (mass, diameter, gravity at the surface,...), the gravitational moments have been quite often ignored in the past, mainly due to the great d…
About the recalibration of the sunspot record
Katya Georgieva, Ali Kilcik, Yury Nagovitsyn +1
In 2015 the calculation of the International (Zurich) sunspot number was cancelled, and it was replaced by a new "recalibrated" series. A new data series was proposed also for the…
A brief history of the solar diameter measurements: a critical quality assessment of the existing data
Jean Pierre Rozelot, Alexander G. Kosovichev, Ali Kilcik
The size of the diameter of the Sun has been debated for a very long time. First tackled by the Greek astronomers from a geometric point of view, an estimate, although incorrect, h…
Dynamics in Sunspot Umbra as Seen in New Solar Telescope and Interface Region Imaging Spectrograph Data
Vasyl Yurchyshyn, Valentyna Abramenko, Ali Kilcik
We analyse sunspot oscillations using Interface Region Imaging Spectrograph (IRIS) slit-jaw and spectral data and narrow-band chromospheric images from the New Solar Telescope (NST…