Results 11 to 20 of about 169,400 (221)
Chemie Ingenieur Technik, EarlyView., 2023 Let us consider an alternative perspective on climate change: The sum of solar radiation and heat generated by human activity result in a net energy input of 1.96 times that of the Sun on the Earth's surface. The expanding global population is expected to exacerbate this issue. Potential solutions are proposed, including replacement and heat recycling.
Martin Bertau, Gerald Steiner
wiley +1 more source
Dynamical Models of Spherical Galaxies with Massive Halo [PDF]
Journal of Astronomy and Space Sciences, 2003 Using the Schwarzschild's linear programming technique, we obtained the general solutions of the collisionless Bolzmann equation describing the spherical galaxy in dynamical equilibrium.
Mun-Suk Chun +2 more
doaj +1 more source
Analytic model for galaxy and dark matter clustering [PDF]
, 2000 We investigate an analytic model to compute nonlinear power spectrum of dark matter, galaxies and their cross-correlation. The model is based on Press-Schechter halos, which cluster and have realistic dark matter profiles.
Spergel, U. Seljak
core +2 more sources
Can a galaxy redshift survey measure dark energy clustering? [PDF]
, 2006 (abridged) A wide-field galaxy redshift survey allows one to probe galaxy clustering at largest spatial scales, which carries an invaluable information on horizon-scale physics complementarily to the cosmic microwave background (CMB).
C. Alcock +9 more
core +2 more sources
Analytical Approximations to Galaxy Clustering [PDF]
, 1997 We discuss some recent progress in constructing analytic approximations to the galaxy clustering. We show that successful models can be constructed for the clustering of both dark matter and dark matter haloes.
AJS Hamilton +12 more
core +3 more sources
Simulating Atomic Dark Matter in Milky Way Analogs
The Astrophysical Journal Letters, 2023 Dark sector theories naturally lead to multicomponent scenarios for dark matter where a subcomponent can dissipate energy through self-interactions, allowing it to efficiently cool inside galaxies.
Sandip Roy +5 more
doaj +1 more source
Formation of Transitional cE/UCD Galaxies through Massive/Dwarf Disc Galaxy Mergers
Galaxies, 2023 The dynamics of the merger of a dwarf disc galaxy with a massive spiral galaxy of the Milky Way type were studied in detail. The remnant of such interaction after numerous crossings of the satellite through the disc of the main galaxy was a compact ...
Alexander V. Khoperskov +2 more
doaj +1 more source
The cosmological constant derived via galaxy groups and clusters
European Physical Journal C: Particles and Fields, 2019 The common nature of dark matter and dark energy is argued in Gurzadyan (Eur Phys J Plus 134:14, 2019) based on the approach that the cosmological constant $$\varLambda $$ Λ enters the weak-field General Relativity following from Newton theorem on the ...
V. G. Gurzadyan, A. Stepanian
doaj +1 more source
PossibleExistence of Dark-Matter-Admixed Pulsar in the Disk Region of the Milky Way Galaxy
Universe, 2022 In our previous study, (Eur Phys J Plus 135:362, 2020 & Eur Phys J Plus 135:637, 2020), we have discussed the possible existence of the dark-matter-admixed pulsars, located in dwarf as well as in massive spiral galaxies (based on Singular Isothermal ...
Nilofar Rahman +3 more
doaj +1 more source
Imprint of Pressure on Characteristic Dark Matter Profiles: The Case of ESO0140040
Galaxies, 2020 We investigate the dark matter distribution in the spiral galaxy ESO0140040, employing the most widely used density profiles: the pseudo-isothermal, exponential sphere, Burkert, Navarro-Frenk-White, Moore and Einasto profiles.
Kuantay Boshkayev +4 more
doaj +1 more source