Results 51 to 60 of about 115,141 (206)
Astrophysical tests of modified gravity: the morphology and kinematics of dwarf galaxies [PDF]
Journal of Cosmology and Astroparticle Physics, 2013 This paper is the third in a series on tests of gravity using observations of stars and nearby dwarf galaxies. We carry out four distinct tests using published data on the kinematics and morphology of dwarf galaxies, motivated by the theoretical work of Hui et al. (2009) and Jain and Vanderplas (2011). In a wide class of gravity theories a scalar field
Jake Vanderplas +3 more
openaire +3 more sources
Stability of disk-like galaxies--Part I: Stability via reduction [PDF]
, 2006 We prove the existence and stability of flat steady states of the Vlasov-Poisson system, which in astrophysics are used as models of disk-like galaxies.
Firt, Roman, Rein, Gerhard
core +1 more source
Fortschritte der Physik, Volume 73, Issue 8, August 2025.Abstract In this study, the properties, equilibrium, and stability of compact objects within the framework of teleparallel gravity with the generalized MIT bag model are investigated. By incorporating the modified field equations, the influence of the generalized bag constant on the structure and physical characteristics of quark stars and neutron ...
Sayantan Ghosh +2 more
wiley +1 more source
Observations of Lenticular Galaxies at the 6-m Telescope of the Special Astrophysical Observatory [PDF]
GROUND-BASED ASTRONOMY IN RUSSIA. 21ST CENTURY. Proceedings of the All-Russian Conference, 2020 This is a historical review covering the last 30 years of the observational study of lenticular galaxies at the 6m telescope BTA of the Special Astrophysical Observatory of the Russian Academy of Sciences. The development of spectroscopic techniques at the BTA has allowed to get comprehensive information about this class of stellar systems, starting ...
openaire +4 more sources
The astrophysical consequences of intervening galaxy gas on fast radio bursts [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 We adopt and analyze results on the incidence and physical properties of damped Ly$ $ systems (DLAs) to predict the astrophysical impact of gas in galaxies on observations of Fast Radio Bursts (FRBs). Three DLA measures form the basis of this analysis: (i) the HI column density distribution, parameterized as a double power-law; (ii) the incidence of ...
J. Xavier Prochaska, Marcel Neeleman
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Tracing the Mass-Assembly History of Galaxies with Deep Surveys
, 2007 We use the optical and near-infrared galaxy samples from the Munich Near-Infrared Cluster Survey (MUNICS), the FORS Deep Field (FDF) and GOODS-S to probe the stellar mass assembly history of field galaxies out to z ~ 5.
A. Cimatti +13 more
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Data Reduction and Correction of Korea Pathfinder Lunar Orbiter (KPLO) Gamma‐Ray Spectrometer (KGRS)
Earth and Space Science, Volume 12, Issue 8, August 2025.Abstract The Korea Pathfinder Lunar Orbiter (KPLO) Gamma‐Ray Spectrometer (KGRS) is Korea's first lunar surface resource exploration payload. GRS data include non‐scientific background information in addition to lunar observation information, so reduction and correction are necessary to analyze the lunar surface scientifically.
Ik‐Seon Hong +2 more
wiley +1 more source
ATLAS Probe: Breakthrough Science of Galaxy Evolution, Cosmology, Milky Way, and the Solar System [PDF]
, 2019 Astrophysics Telescope for Large Area Spectroscopy Probe is a concept for a National Aeronautics and Space Administration probe-class space mission that will achieve ground-breaking science in the fields of galaxy evolution, cosmology, Milky Way, and the
Chary, Ranga +4 more
core
Simulations of stellar convection, pulsation and semiconvection [PDF]
, 2010 We report on modelling in stellar astrophysics with the ANTARES code. First, we describe properties of turbulence in solar granulation as seen in high-resolution calculations.
Bascoul +13 more
core +1 more source
Radio Science, Volume 60, Issue 8, August 2025.Abstract A space‐borne radio‐frequency antenna is typically located in the vicinity of a conductive spacecraft body that influences its beam. Also, at wavelengths that greatly exceed the sizes of such an antenna and spacecraft, the antenna is expected to have the beam of an equivalent short dipole.
Brent Page +3 more
wiley +1 more source