1. Evolution of a Viscous Protoplanetary Disk with Convectively Unstable Regions

   • Ya. N. Pavlyuchenkov
   • A. V. Tutukov
   • E. I. Vorobyov

   OriginalPaper 03 March 2020 Pages: 1 - 14

   

2. Structure and Evolution of Powerful H₂O Maser Flares in the Protostellar Object IRAS 18316–0602 (G25.65+1.05)

   • N. T. Ashimbaeva
   • V. V. Krasnov
   • A. M. Tolmachev

   OriginalPaper 03 March 2020 Pages: 15 - 22

   

3. The Herbig Be Star IL Cep A as a Long-Periodic Spectroscopic Binary

   • N. Z. Ismailov
   • M. A. Pogodin
   • G. R. Bahaddinova

   OriginalPaper 03 March 2020 Pages: 23 - 33

   

4. Analysis of the Sky Scanning Efficiency in the Lyra-B Space Experiment

   • S. V. Zhmailov
   • M. E. Prokhorov

   OriginalPaper 03 March 2020 Pages: 34 - 57

   

5. X-Ray Flares and Activity Complexes on the Sun in Solar Cycle 24

   • E. S. Isaeva
   • V. M. Tomozov
   • S. A. Yazev

   OriginalPaper 03 March 2020 Pages: 58 - 65

   

6. Corotating and Propagating Disturbances in the Solar Wind Based on Monitoring of Interplanetary Scintillations at the LPA Radio Telescope of the Lebedev Physical Institute in 2017

   • I. V. Chashei
   • T. O. Lebedeva
   • I. A. Subaev

   OriginalPaper 03 March 2020 Pages: 66 - 81

   

7. Computation of Periodic Orbits around L₁ and L₂ using PSO Technique

   • V. Kumar
   • B. S. Kushvah

   OriginalPaper 03 March 2020 Pages: 82 - 93

   

8. First Space and Kinematical Analysis of Newly Discovered Southern UFMGs Clusters with Gaia

   • W. H. Elsanhoury

   OriginalPaper 03 March 2020 Pages: 94 - 106