Results 1 to 10 of about 46,290 (218)
Development of galactic and extragalactic astronomy in Kharkov University [PDF]
Astronomical School’s Report, 2002 Development of investigations in field of galactic and extragalactic in Kharkov University since the moment of their beginnings (from 90th years of XX century) is analyzing. Three periods are distinguished: before the 30th, between 30th and 70th, and after the 70th years of the XX century.
V. A. Zakhozhay
semanticscholar +4 more sources
Symmetries in Stellar, Galactic, and Extragalactic Astronomy [PDF]
Complex Symmetries, 2021 Examples are presented for appearance of geometric symmetry in the shape of various astronomical objects and phenomena. Usage of these symmetries in astrophysical and extragalactic research is also discussed.
L. Szabados
semanticscholar +4 more sources
Symmetries in Stellar, Galactic and Extragalactic Astronomy [PDF]
, 2022 Examples are presented for appearance of geometric symmetry in the shape of various astronomical objects and phenomena. Usage of these symmetries in astrophysical and extragalactic research is also discussed.
L. Szabados
openaire +2 more sources
Observations of galactic and extragalactic novae [PDF]
The Astronomy and Astrophysics Review, 2020 The recent GAIA DR2 measurements of distances to galactic novae have allowed to re-analyse some properties of nova populations in the Milky Way and in external galaxies on new and more solid empirical bases.
M. Della Valle, L. Izzo
semanticscholar +1 more source
The Kinematic Bimodality: Efficient Feedback and Cold Gas Deficiency in Slow-rotating Galaxies
The Astrophysical Journal Letters, 2023 The bimodality in the stellar spin of low-redshift (massive) galaxies, ubiquitously existing at all star formation levels and in diverse environments, suggests that galaxies grow and quench through two diverged evolutionary pathways.
Bitao Wang, Yingjie Peng
doaj +1 more source
50 YEARS OF RESEARCH IN CONTINUUM AT THE UTR-2 RADIO TELESCOPE [PDF]
Radio Physics and Radio Astronomy, 2021 Purpose: The results of research in continuum decameter-wave radio emission of the Galaxy background, ionized hydrogen regions, supernova remnants, extragalactic discrete sources, extended galaxies, galactic clusters, extragalactic background are given ...
M. A. Sidorchuk +7 more
doaj +1 more source
The Supersonic Project: Star Formation in Early Star Clusters without Dark Matter
The Astrophysical Journal Letters, 2023 The formation mechanism of globular clusters (GCs) has long been debated by astronomers. It was recently proposed that supersonically induced gas objects (SIGOs)–which formed in the early Universe due to the supersonic relative motion of baryons and dark
William Lake +9 more
doaj +1 more source
Cosmic Rays in Galactic and Extragalactic Magnetic Fields [PDF]
Space Science Reviews, 2011 We briefly review sources of cosmic rays, their composition and spectra as well as their propagation in the galactic and extragalactic magnetic fields, both regular and fluctuating. A special attention is paid to the recent results of the X-ray and gamma-
F. Aharonian +4 more
semanticscholar +2 more sources
Decoding the giant extragalactic radio sources [PDF]
Journal of astrophysics and astronomy, 2022 Giant radio sources (GRSs) defined to be >0.7 Mpc are the largest single objects in the Universe and can be associated with both galaxies (GRGs) and quasars (GRQs).
P. Dabhade, D. Saikia, M. Mahato
semanticscholar +1 more source