Results 101 to 110 of about 6,060 (231)

ISENTROPIC "SHOCK WAVES" IN NUMERICAL ASTROPHYSICS

open access: yesOdessa Astronomical Publications, 2016
Numerical simulations of the cold supersonic flows in different astrophysical problems meets with the loss of precision difficulty. For to overcome the difficulty it was suggested earlier to use conservation entropy equation instead of energy ...
S. G. Moiseenko, G. S. Bisnovatyi-Kogan
doaj   +1 more source

3D Architecture of Kodiak Butte as Evidence of Fluvial or Shoal‐Water Environments in Jezero Crater, Mars

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract The Mars 2020 mission has explored depositional environments recorded in a fan‐shaped deposit on the western side of Jezero crater. Kodiak butte is an isolated outcrop of sedimentary rock ∼1 km south of the western fan scarp and may be an erosional remnant of said fan.
O. A. Kanine   +4 more
wiley   +1 more source

Search for double beta decay of 136Xe to the 0 1 + $$ {0}_1^{+} $$ excited state of 136Ba with PandaX-4T

open access: yesJournal of High Energy Physics
We perform a search of double beta decay of 136Xe to the excited state, 0 1 + $$ {0}_1^{+} $$ , of 136Ba (2νββ- 0 1 + $$ {0}_1^{+} $$ ), using the dual-phase xenon detector of PandaX-4T with the first 94.9-day commissioning data.
The PandaX collaboration   +100 more
doaj   +1 more source

Investigating Long-Term Behaviour of X-ray Binaries Using Archival Data

open access: yesActa Polytechnica CTU Proceedings, 2015
Long term modulations have been detected in a wide variety of both low and high-mass X-ray binaries. The All Sky Monitor on board the Rossi X-ray Timing Explorer provides the most extensive (~15 years) and sensitive X-ray archive for studying such ...
M. M. Kotze, P. A. Charles
doaj   +1 more source

Coupled Effects of Grain Size and Metallic Iron on Spectral and Polarimetric Properties of Lunar Simulants

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract The lunar surface is heterogeneous in grain size and metallic iron abundance due to diverse histories of space weathering. The spectral and polarimetric properties of the lunar regolith are strongly affected by both grain size and metallic iron particles.
Eunjin Cho   +10 more
wiley   +1 more source

An Introduction to Distance Measurement in Astronomy

open access: yes, 2011
Distance determination is an essential technique in astronomy, and is briefly covered in most textbooks on astrophysics and cosmology. It is rarely covered as a coherent topic in its own right.
Richard de Grijs, de Grijs, Richard
core   +1 more source

Investigating the glueball-like particle X(2370) in B meson decays

open access: yesEuropean Physical Journal C: Particles and Fields
Based on the collected data on $$J/\psi \rightarrow \gamma K_S^0K_S^0\eta '$$ J / ψ → γ K S 0 K S 0 η ′ , the Beijing Spectrometer (BESIII) experiment has conducted an analysis of the mass and spin parity of the X(2370) particle.
Xiao-Tong Li, Guang-Yu Wang, Qi-An Zhang
doaj   +1 more source

BIOLOGICAL SECTION “THE IMPORTANCE OF G. GAMOW’S IDEAS FOR BIOLOGY OF THE 21ST CENTURY” IN THE FRAMEWORK OF THE XXV GAMOW INTERNATIONAL ASTRONOMICAL CONFERENCE “ASTRONOMY AND BEYOND: ASTROPHYSICS, COSMOLOGY AND GRAVITATION, ASTROPARTICLE PHYSICS, RADIOASTRONOMY, ASTROBIOLOGY AND GENETICS” HELD ON 18–22 AUGUST 2025 AT ODESA I. I. MECHNIKOV UNIVERSITY, ODESA CITY, UKRAINE

open access: yesOdesa National University Herald. Biology
On 19 August 2025, within the framework of the Gamow International Astronomical Conference, a meeting of the traditional Biological Section entitled “The Importance of G. Gamow’s Ideas for 21st-Century Biology” was held. This year marked the seventh edition of the Biological Section.
A. Börner   +45 more
openaire   +1 more source

Elastic Properties of Titan Tholins Revealed by Brillouin Spectroscopy

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract Titan tholins, complex organic solids synthesized by simulating photochemical processes in Titan's atmosphere, are widely regarded as analogs to organic surface materials on the Saturnian moon. Their mechanical properties are critical for understanding the evolution of Titan's geomorphology and crustal layering.
Mark A. Johnson   +9 more
wiley   +1 more source

Analysis of the two degree field galaxy redshift survey [PDF]

open access: yes, 2001
In this Thesis we analyse in detail the Anglo-Australian 2 degree Field Galaxy Redshift Survey (2dFGRS). The goal of this survey is to measure all galaxy redshifts for the 250 000 galaxies brighter than b(_J) = 19.45 spread over ~ 2000 square degrees. At
Norberg, Iohn Peder Ragnar
core  

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