Search Publications
The sun as a significant agent provoking earthquakes
Preka-Papadema, P.; Mavromichalaki, H.; Anagnostopoulos, G. +3 more
In this paper we provide significant evidence that the sun is a principal agent provoking seismic activity. In particular the aim of the studies presented is to examine the possible relation of the coronal hole (CH) driven high speed solar wind streams (HSSs) with seismicity We performed several statistical studies of solar space and seismological…
Membership of stars in open clusters using random forest with gaia data
Hasan, S. N.; Hasan, Priya; Raja, Mudasir +1 more
Membership of stars in open clusters is one of the most crucial parameters in studies of star clusters. Gaia opened a new window in the estimation of membership because of its unprecedented 6-D data. In the present study, we used published membership data of nine open star clusters as a training set to find new members from Gaia DR2 data using a s…
Approximate analytical description of the high latitude extinction
Malkov, Oleg; Kovaleva, Dana; Nekrasov, Alexei +1 more
The distribution of visual interstellar extinction AV has been mapped in selected areas over the Northern sky, using available LAMOST DR5 and Gaia DR2/EDR3 data. AV was modelled as a barometric function of galactic latitude and distance. The function parameters were then approximated by spherical harmonics. The resulting anal…
Geozesy and geophysics of Mercury: Prospects in view of the BepiColombo mission
Hussmann, Hauke; Stark, Alexander
The BepiColombo mission, which is a joint mission of the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA), was launched successfully on October 20, 2018 from Kourou, French Guyana. The spacecraft is currently on its 7 yr cruise to Mercury. The main science campaign at Mercury will begin, however, no earlier than spring…