Search Publications
Chandrayaan-1 Moon Impact Probe: Impact Location Refined
Stooke, P. J.; Subramanian, S.; Ahmed, S. M.
Chndrayaan-1's Moon Impact Probe took images as it descended on 14 November 2009. Past attempts to locate the impact compared lower resolution images with a Clementine map. We use LROC images and the last few MIP images to refine the impact site.
Studies of Heliospheric Modulation of Cosmic Rays at ShICRA SB RAS and Prospects of Their Further Development
Gololobov, P. Yu.; Starodubtsev, S. A.; Krymsky, G. F. +8 more
The paper presents the results of the staff of ShICRA SB RAS on cosmic ray research over the past two decades. A brief description of the current state and prospects for further development of the experimental base for recording cosmic rays, methods for processing experimental data, and scientific research of various phenomena of heliospheric modu…
Investigation of relative motion in the triple system ADS 48 on the basis of Gaia DR2 and Pulkovo 26-inch refractor observations
Zhuchkov, R. Ya.; Kiyaeva, O. V.; Izmailov, I. S.
There are high-precision positions, proper motions, parallaxes and radial velocities at the instant 2015.5 for all three components of the star ADS 48 ABF in the catalog Gaia DR2 (2018). According to these data relative motions and the family of orbits were calculated by the Apparent Motion Parameters (AMP) method (Kiselev and Kiyaeva,1980), and t…
Kinematics of the Milky Way Thick disk in solar neighborhood
Vieira, K.; Korchagin, V.; Lutsenko, A.
Using GAIA EDR3 catalog, we present the detailed analysis of the two-component Milky Way stellar disk in the solar neighborhood. To determine the kinematical properties of the thin and of the Thick disks, we select the complete sample of about 278,000 evolved red giant branch (RGB) stars distributed in the cylinder of 1 kpc radius and 0.5 kpc heig…
Origin of the Solar Rotation Harmonics Seen in the EUV and UV Irradiance
Giono, G.; Zender, J. J.; Kariyappa, R. +1 more
Long-term periodicities in the solar irradiance are often observed with periods proportional to the solar rotational period of 27 days. These periods are linked either to some internal mechanism in the Sun or said to be higher harmonics of the rotation without further discussion of their origin. In this article, the origin of the peaks in periodic…
ILEWG report to COSPAR: Science, Technology, human aspects, roadmaps, socio-economics, young lunar explorers, MoonVillage, MoonMars synergies, EuroMoonMars, ArtMoonMars
Foing, Bernard H.
ILEWG has been organising since 1994 ICEUM International Conferences on Exploration & Utilisation of the Moon with published proceedings, and where community declarations have been prepared and endorsed by community participants. ILEWG has co-organised and co-sponsored lunar sessions at EGU, COSPAR, EPSC. ILEWG task groups include science, tec…
The Overcontact Binary BO Arietis
Nelson, Robert H.
New radial velocity and photometric data for BO Ari have been obtained, and Roche-based simultaneous analysis of RV and light curve data for the system has been accomplished using the 2003 version of the Wilson-Devinney code. Values for the masses and radii have been obtained: M1 = 1.34 (2) Mʘ, M2 = 0.26 (1) M…
GALEX photometry of the open cluster NGC 752
Smith, Graeme H.
Ultraviolet photometry from the GALEX mission is compiled for a sample of main sequence stars and red giants in the open cluster NGC 752. This is one of the few ensembles of coveal near-solar abundance FGK stars for which near-ultraviolet and far-ultraviolet magnitudes are available from GALEX. Cluster members are identified on the basis of Gaia p…
The GATE summer school
Paunzen, E.; Skarka, M.; Janík, J. +1 more
The education activities in the form of short and condensed courses such as summer schools are essential parts of the educational process of every scientist. Here we briefly describe the program and the organization of the GATE summer school that was held in a form of virtual meeting between August 8 and 15 in Brno, Czech Republic.
The Circumstellar Gas of Phi Leonis in the UV
Eiroa, C.; Brown, Alexander; Grady, C. A. +2 more
HST UV spectra were obtained to study whether the φ Leo system has one or more stellar companions, as shown for the A-star dwarf, HR10, stellar pulsation, or transiting exocomets. During five partial HST observation sets spread over 13 months, redshifted gas with radial velocities up to +245 km s-1 was observed on one occasion, with low…