Results 41 to 50 of about 53,924 (236)
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
Symmetries in Stellar, Galactic, and Extragalactic Astronomy [PDF]
, 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.
openaire +2 more sources
RadioAstron space-VLBI project: studies of masers in star forming regions of our Galaxy and megamasers in external galaxies [PDF]
, 2017 Observations of the masers in the course of RadioAstron mission yielded detections of fringes for a number of sources in both water and hydroxyl maser transitions. Several sources display numerous ultra-compact details. This proves that implementation of
Alakoz, A. V. +3 more
core +1 more source
Highlights from the IceCube Neutrino Observatory [PDF]
EPJ Web of ConferencesThe IceCube Neutrino Observatory has been collecting data for more than a decade. During this time, it has heralded the birth of neutrino astronomy with the discovery of the astrophysical neutrino flux.
Aguilar Juan A.
doaj +1 more source
Synchrotron and Compton Components and their Variability in BL Lac Objects
, 2000 BL Lacertae objects are extreme extragalactic sources characterized by the emission of strong and rapidly variable nonthermal radiation over the entire electromagnetic spectrum.
Ghisellini, G. +3 more
core +2 more sources
, 2019 The discovery of radio pulsars over a half century ago was a seminal moment in astronomy. It demonstrated the existence of neutron stars, gave a powerful observational tool to study them, and has allowed us to probe strong gravity, dense matter, and the ...
Hessels, J. W. T. +2 more
core +2 more sources
The Chinese Radio Telescope Array for Interplanetary Scintillation Monitoring
Space Weather, Volume 24, Issue 1, January 2026.Abstract Solar flares, coronal mass ejections (CMEs) and enegertic particles, etc., are the driving sources that may cause catastrophic space weathers. It is desirable to obtain information of solar eruptions like flares and CMEs, etc., propagating from the Sun to the near‐Earth space.
Yihua Yan +10 more
wiley +1 more source
The Stochastic‐Dissipative Störmer Problem‐Trajectories and Radiation Patterns
Annalen der Physik, Volume 537, Issue 12, December 2025.We consider charged particle motion and radiation in a dipole magnetic field, in the presence of friction and of stochastic forces. The numerical solutions of the Langevin equation reveal how these forces modify the complex dynamics of particles, and they offer some new insights into the nonlinear processes relevant to planetary radiation belts ...
Tiberiu Harko, Gabriela Raluca Mocanu
wiley +1 more source
The EDGE-CALIFA Survey: Molecular Gas and Star Formation Activity across the Green Valley
The Astrophysical JournalWe present a ^12 CO( J = 2−1) survey of 60 local galaxies using data from the Atacama Compact Array as part of the Extragalactic Database for Galaxy Evolution: the ACA EDGE survey.
Vicente Villanueva +13 more
doaj +1 more source
An Extragalactic HI Cloud with No Optical Counterpart? [PDF]
, 2000 We report the discovery, from the HI Parkes All-Sky Survey (HIPASS), of an isolated cloud of neutral hydrogen which we believe to be extragalactic. The HI mass of the cloud (HIPASS J1712-64) is very low, 1.7 x 10^7 Msun, using an estimated distance of ~3.
A. E. Wright +43 more
core +2 more sources