ARTICLE
|
doi:10.20944/preprints202403.1663.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Photon energy density parameter; Friedmann equation; critical density; Thermodynamical Friedmann equation
Online: 27 March 2024 (14:17:57 CET)
ARTICLE
|
doi:10.20944/preprints202403.1651.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
universe model; exact solution; Hubble tension; cosmoly
Online: 27 March 2024 (08:18:49 CET)
ARTICLE
|
doi:10.20944/preprints202105.0197.v9
Online: 26 March 2024 (14:12:05 CET)
ARTICLE
|
doi:10.20944/preprints202403.1241.v2
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Friedmann equations, FLRW, Universal critical density, Cosmological con- stant, Haug-Tatum model, Extremal solution, Haug-Spavieri solution, Flat space cosmology
Online: 26 March 2024 (10:51:27 CET)
ARTICLE
|
doi:10.20944/preprints202403.1475.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
optical turbulence; profiles; Fried parameter; the air refractive index structure constant Cn2.
Online: 25 March 2024 (11:25:51 CET)
ARTICLE
|
doi:10.20944/preprints202403.1228.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
SPARC database; galaxy; MOND; Newtonian Fractional-Dimension Gravity; Refracted Gravity; κ -model; dark matter
Online: 21 March 2024 (01:54:38 CET)
ARTICLE
|
doi:10.20944/preprints202201.0301.v9
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Cosmology; Black holes; Dark Energy; Schwarzschild metric
Online: 19 July 2022 (10:32:16 CEST)
ARTICLE
|
doi:10.20944/preprints202403.1049.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Mercury; angular precession; Doppler tracking
Online: 18 March 2024 (15:15:59 CET)
ARTICLE
|
doi:10.20944/preprints202403.0771.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Quantum Entanglement Asymmetry; Matter-Antimatter Imbalance; Cosmic Microwave Background Anisotropies; Friedmann Equations; Cosmological Evolution
Online: 13 March 2024 (09:52:08 CET)
ARTICLE
|
doi:10.20944/preprints202402.0478.v2
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Einstein's gravity; black holes; thermodynamics; Smarr relation; Gibbs free energy; Anti-de Sitter spacetime
Online: 12 March 2024 (08:10:18 CET)
ARTICLE
|
doi:10.20944/preprints202309.1751.v3
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Schwarzschild black holes; Schwarzschild non-black holes; Ruler distance; Planck units; Hawking radiation; Tolman radiation; Gravitational frequency shift; Firewall mass; Negative gravitational mass-energy; Birkhoff's Theorem; Thermodynamic equilibrium; First Law of Thermodynamics; Second Law of Thermodynamics
Online: 5 March 2024 (10:56:30 CET)
REVIEW
|
doi:10.20944/preprints202403.0236.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
varying speed of light models; standard cosmological model; Robertson-Walker metric; physical constants; Hubble parameter
Online: 5 March 2024 (06:31:42 CET)
ARTICLE
|
doi:10.20944/preprints202403.0117.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
space-time; generic space expansion; emergence of time; dark energy; quantum gravity; Wheeler-de Witt-equation; volume quantisation; friction by information transfer; information quantum
Online: 4 March 2024 (05:58:41 CET)
ARTICLE
|
doi:10.20944/preprints202402.1645.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
universe expansion; gravity; wave-particle-duality; singularities; electromagnetism; quantum entanglement; fine structure constant; 137
Online: 28 February 2024 (14:43:47 CET)
ARTICLE
|
doi:10.20944/preprints202402.1598.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
cosmography; varying speed of light models; standard cosmological model; Hubble parameter
Online: 28 February 2024 (10:35:56 CET)
ARTICLE
|
doi:10.20944/preprints202402.1621.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
f(R,T) gravity; dark energy; scale factor.
Online: 28 February 2024 (09:31:08 CET)
ARTICLE
|
doi:10.20944/preprints202402.1292.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Kappa distribution; solar wind electrons; whistler-mode waves; turbulence; thermal fluctuations; electromagnetic; electrostatic; plasma; kinetic
Online: 22 February 2024 (09:51:26 CET)
ARTICLE
|
doi:10.20944/preprints202402.1088.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Dark Matter; MOND; Retardation; General Relativity
Online: 20 February 2024 (11:28:30 CET)
REVIEW
|
doi:10.20944/preprints202402.1068.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
galaxy groups, blackhole activity, AGN feedback, kinematic misalignment, mergers, group dynamics, radio luminosity, stellar populations, galaxy formation
Online: 19 February 2024 (14:54:38 CET)
ARTICLE
|
doi:10.20944/preprints202004.0468.v2
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Universe inflation; Einstein's gravity; nonlinear electrodynamics; e-folding number; classical stability; causality
Online: 19 February 2024 (14:51:50 CET)
ARTICLE
|
doi:10.20944/preprints202402.0712.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
cosmic microwave background; Hubble redshift; black hole; black hole universe; gravastar; optical gravity
Online: 12 February 2024 (16:26:11 CET)
ARTICLE
|
doi:10.20944/preprints202402.0683.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Relativistic fluid; gravitational collapse; dissipative systems
Online: 12 February 2024 (13:26:34 CET)
ARTICLE
|
doi:10.20944/preprints202402.0564.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
MCMC; cosmological parameters; Power Law; Observational constraints; Om Diagnostics; cosmography
Online: 9 February 2024 (13:24:41 CET)
ARTICLE
|
doi:10.20944/preprints202402.0442.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
LISA; Gravitational Waves; EMRI; PSO; Likelihood Ratio
Online: 7 February 2024 (11:51:12 CET)
ARTICLE
|
doi:10.20944/preprints202402.0371.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
dark energy
cosmic background radiation
dark ages
large-scale structure of the Universe
cosmic background radiation
dark ages
large-scale structure of the Universe
Online: 7 February 2024 (03:37:23 CET)
ARTICLE
|
doi:10.20944/preprints202401.0664.v3
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Hubble sphere, Casimir effect, luminosity, radiation pressure, quantum cosmology, vacuum energy.
Online: 2 February 2024 (10:33:27 CET)
REVIEW
|
doi:10.20944/preprints202402.0041.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
modified gravity; dark matter; galaxy dynamics; acceleration scale; scaling relations; galaxy clusters; cosmology
Online: 1 February 2024 (12:55:19 CET)
ARTICLE
|
doi:10.20944/preprints202401.2051.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
general relativity; cosmology; black hole; dark energy; naked singularity; gravastar
Online: 29 January 2024 (15:44:38 CET)
ARTICLE
|
doi:10.20944/preprints202312.2215.v2
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Cosmology; Cosmological parameters; Hubble tension
Online: 29 January 2024 (13:09:48 CET)
ARTICLE
|
doi:10.20944/preprints202309.0873.v4
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Cosmology; Dark Energy; General Relativity; Black Holes; Cosmological Constant
Online: 29 January 2024 (04:48:12 CET)
ARTICLE
|
doi:10.20944/preprints202311.1084.v2
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
dark matter; dark energy; origin of life; cosmic dust; quintessential water
Online: 26 January 2024 (07:23:20 CET)
ARTICLE
|
doi:10.20944/preprints202401.1586.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
LISA; Gravitational Waves; EMRI; PSO; Likelihood Ratio
Online: 22 January 2024 (10:47:23 CET)
ARTICLE
|
doi:10.20944/preprints202401.1337.v1
Online: 17 January 2024 (14:54:26 CET)
ARTICLE
|
doi:10.20944/preprints202401.1126.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Oort cloud; Modified Newtonian Dynamics; Modified Newtonian Gravity
Online: 15 January 2024 (11:51:42 CET)
ARTICLE
|
doi:10.20944/preprints202401.0964.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Protoplanetary disk; FARGO3D; Exoplanet
Online: 12 January 2024 (10:41:30 CET)
ARTICLE
|
doi:10.20944/preprints202401.0909.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
33 Polyhymnia; dark matter; superheavy elements; compact object
Online: 11 January 2024 (11:16:33 CET)
ARTICLE
|
doi:10.20944/preprints202401.0720.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Unification; Relativity of spacetime; Extended Principle of Inertia; Geometrization of spacetime; Local scaling function of curved spacetime; Four-potential of a field; Tensor of a field; Relativistic dynamics; Superposition in gravitation
Online: 9 January 2024 (12:21:54 CET)
ARTICLE
|
doi:10.20944/preprints202309.1002.v4
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
dark energy; dark matter; extra dimension; gravity; neutrino; vacuum energy
Online: 5 January 2024 (15:40:05 CET)
ARTICLE
|
doi:10.20944/preprints202401.0173.v2
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
CMB temperature luminosity; black hole luminosity; Hawking temperature
Online: 5 January 2024 (07:00:26 CET)
ARTICLE
|
doi:10.20944/preprints202401.0302.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
solar transition region; radio emission; magnetic field; gradient
Online: 4 January 2024 (03:11:59 CET)
ARTICLE
|
doi:10.20944/preprints202401.0174.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Modified redshift; Friedmann; Number density; Light intensity; Galaxies
Online: 3 January 2024 (09:03:32 CET)
ARTICLE
|
doi:10.20944/preprints202401.0144.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
quintessence models; cosmic acceleration; dark energy evolution; scalar fields; cosmological constant
Online: 3 January 2024 (06:56:31 CET)
ARTICLE
|
doi:10.20944/preprints202401.0137.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Hubble tension; Cosmic Microwave Background; Large-scale structures; Dark energy constraints; Future cosmological observations
Online: 3 January 2024 (04:20:40 CET)
ARTICLE
|
doi:10.20944/preprints202401.0136.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
cosmology; cosmic background radiation — early Universe
Online: 3 January 2024 (04:18:33 CET)
ARTICLE
|
doi:10.20944/preprints202401.0077.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
dark matter interaction; baryonic matter; cosmological perturbations; supergravity potentials; cosmic structure formation
Online: 3 January 2024 (02:33:30 CET)
ARTICLE
|
doi:10.20944/preprints202312.2238.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Lane-Emden equation; polytrope; ODEs
Online: 29 December 2023 (08:15:28 CET)
ARTICLE
|
doi:10.20944/preprints202312.1759.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
dense baryonic matter; neutron stars; phase transitions
Online: 25 December 2023 (09:55:56 CET)
ARTICLE
|
doi:10.20944/preprints202312.1782.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Hydrostatic pressure; Hubble sphere; black hole; Planck length; super fluid
Online: 25 December 2023 (09:39:29 CET)
ARTICLE
|
doi:10.20944/preprints202312.1564.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
gravitational waves, dark energy, cosmological constant, Planck length
Online: 20 December 2023 (14:05:37 CET)
ARTICLE
|
doi:10.20944/preprints202312.1489.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
CMB temperature; Gravitational potential energy; geometric mean
Online: 20 December 2023 (10:50:43 CET)
ARTICLE
|
doi:10.20944/preprints202312.1365.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
gravitation; astrophysics; black holes
Online: 19 December 2023 (09:37:24 CET)
ARTICLE
|
doi:10.20944/preprints202207.0121.v6
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
big bang and big crunch; cosmology; dark energy; dark matter; gravitational force; the cyclic universe
Online: 18 December 2023 (06:27:08 CET)
ARTICLE
|
doi:10.20944/preprints202105.0488.v9
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
solar system; complete relativity; nature; mechanics
Online: 19 July 2023 (09:29:20 CEST)
ARTICLE
|
doi:10.20944/preprints202312.1161.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Atomic data; transition probabilities; photoionization cross sections; electron-ion recombination cross sections and rate coefficients; lifetimes; electron-impact excitation; Line ratios; third generation synchrotron radiation
Online: 15 December 2023 (12:09:55 CET)
REVIEW
|
doi:10.20944/preprints202312.1182.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
large number hypothesis; infinitesimal; infinite; gravitational constant; continuous; mass creation;
anthropic principle; variability of constants; cosmological parameters; theoretical physics; universe models;
Einstein's theory of general relativity; cosmic time; quantum physics
anthropic principle; variability of constants; cosmological parameters; theoretical physics; universe models;
Einstein's theory of general relativity; cosmic time; quantum physics
Online: 15 December 2023 (11:17:31 CET)
REVIEW
|
doi:10.20944/preprints202312.1070.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
γ -ray astrophysics; Active galactic nuclei; very-high-energy gamma rays; non-thermal; high energy astrophysics
Online: 14 December 2023 (08:32:44 CET)
ARTICLE
|
doi:10.20944/preprints202312.1016.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
cosmological constant; lepton mass; dark energy paradigm; unified dark sector; Planck's dimensional analysis
Online: 14 December 2023 (04:32:07 CET)
ARTICLE
|
doi:10.20944/preprints202312.0886.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
space-time singularity, astrophysical jets, energy density of superfluid space
Online: 12 December 2023 (11:21:49 CET)
ARTICLE
|
doi:10.20944/preprints202312.0775.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
neutrinos; tachyons; dark matter; detection of Cosmic Neutrino Background
Online: 12 December 2023 (05:06:23 CET)
ARTICLE
|
doi:10.20944/preprints202312.0732.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
radioastronomy, superconducting sensors, SINIS detectors, optical telescope, BTA SAO RAS
Online: 11 December 2023 (15:57:26 CET)
ARTICLE
|
doi:10.20944/preprints202312.0075.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
radar; near-Earth Objects; asteroids; planetary defense
Online: 4 December 2023 (08:27:04 CET)
ARTICLE
|
doi:10.20944/preprints202311.1978.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
entropy; black holes; oscillating Universe
Online: 30 November 2023 (11:35:46 CET)
ARTICLE
|
doi:10.20944/preprints202311.1924.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Modifeied and alternative theories of gravity; Reconstruction; Inflation
Online: 30 November 2023 (10:34:30 CET)
REVIEW
|
doi:10.20944/preprints202311.1815.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
cosmology: theory; dark matter; dark energy; inflation; galaxies: formation; rotation; weyl integrable geometry; dirac co-calculus
Online: 30 November 2023 (02:00:32 CET)
ARTICLE
|
doi:10.20944/preprints202311.1854.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
EUV Spectroscopy; solar IFS; EUV slicers; image slicers; solar space mission; particle acceleration
Online: 29 November 2023 (10:56:44 CET)
ARTICLE
|
doi:10.20944/preprints202311.1087.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Space weather; scatter polarimeter; hybrid pixel detectors; Timepix; dE/dX spectrometer; low earth orbit; magnetic spectrometer; galactic cosmic rays; space instrumentation
Online: 17 November 2023 (05:15:34 CET)
ARTICLE
|
doi:10.20944/preprints202101.0017.v3
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Oscillating universe; big bang; big bounce; Hubble constant; dark energy; dark matter; inflation; vacuum energy density; Casimir effect
Online: 15 November 2023 (09:05:38 CET)
ARTICLE
|
doi:10.20944/preprints202311.0823.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
galaxies; distances and redshifts - galaxies; high-redshift - stars; gamma ray burst; general - cosmology; cosmological parameters
Online: 13 November 2023 (12:18:40 CET)
ARTICLE
|
doi:10.20944/preprints202311.0667.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
AMS-02 Layer 0 upgrade; Silicon micro-strips detector; nuclei; charge resolution; ADC
Online: 10 November 2023 (08:09:06 CET)
ARTICLE
|
doi:10.20944/preprints202311.0499.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
solar flare; impulsive flare; gradual flare; solar comic-rays; solar energetic particles; particle acceleration; solar neutrons
Online: 8 November 2023 (06:44:03 CET)
ARTICLE
|
doi:10.20944/preprints202311.0370.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
neutron star; symmetry energy; nuclear matter modeling
Online: 7 November 2023 (11:39:19 CET)
ARTICLE
|
doi:10.20944/preprints202311.0416.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
galatic cosmic rays; nearby source; cosmic ray anisotropy; cosmic ray spectra
Online: 7 November 2023 (08:28:00 CET)
ARTICLE
|
doi:10.20944/preprints202311.0208.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Solar cycles; Solar flares; Geomagnetic activity indices; Cosmic rays; Period analysis
Online: 3 November 2023 (11:23:50 CET)
ARTICLE
|
doi:10.20944/preprints202311.0134.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Spiral arms; spiral pattern rotation; evolution; spiral galaxies
Online: 2 November 2023 (10:34:43 CET)
REVIEW
|
doi:10.20944/preprints202311.0092.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
orientation of galaxies; galaxies clusters; morphological types of galaxies
Online: 1 November 2023 (12:17:22 CET)
ARTICLE
|
doi:10.20944/preprints202308.0531.v2
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
special relativity; general relativity; gravitational frequency shift; conservation of energy; conservation of linear momentum; thought experiments; history and philosophy of physics
Online: 31 October 2023 (10:32:32 CET)
REVIEW
|
doi:10.20944/preprints202310.1818.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Dark energy; observational data; dynamical dark energy models
Online: 27 October 2023 (14:27:15 CEST)
ARTICLE
|
doi:10.20944/preprints202310.1715.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Sun: corona; Sun: magnetic field; instrumentation: polarimeters; radiative transfer
Online: 26 October 2023 (11:32:53 CEST)
ARTICLE
|
doi:10.20944/preprints202309.0784.v2
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
cyclic universe; spacetime energy-momentum; big bang; dark energy; cosmological constant
Online: 24 October 2023 (10:59:25 CEST)
ARTICLE
|
doi:10.20944/preprints202110.0082.v6
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
emergent gravity; MOND; modified newtonian gravity; dark matter
Online: 20 October 2023 (11:53:20 CEST)
ARTICLE
|
doi:10.20944/preprints202310.1187.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
exoplanet; red giant; habitable zone
Online: 19 October 2023 (03:56:52 CEST)
ARTICLE
|
doi:10.20944/preprints202310.0486.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
solar magnetograph; space weather; space sciences; solar instrumentation; miniaturised optics
Online: 9 October 2023 (11:10:47 CEST)
ARTICLE
|
doi:10.20944/preprints202310.0318.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Quantum spacetime geometrization, field back-reaction on gravity, QED at high energy, super massive Black hole formation at he big-bang
Online: 6 October 2023 (11:04:01 CEST)
ARTICLE
|
doi:10.20944/preprints202310.0153.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
gravitational redshift; cosmic redshift; effective redshift; zero gravity sphere; cosmic expansion
Online: 3 October 2023 (11:59:49 CEST)
ARTICLE
|
doi:10.20944/preprints202309.2160.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
QSOs; LightGBM; CatBoost; XGBoost; random forest
Online: 30 September 2023 (08:04:34 CEST)
ARTICLE
|
doi:10.20944/preprints202309.2017.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
RLC electrical model; RC electrical model; cosmology; background radiation; Hubble’s law; Boltzmann´s constant; dark energy; dark matter; black hole; Big Bang and cosmic inflation.
Online: 29 September 2023 (13:28:05 CEST)
ARTICLE
|
doi:10.20944/preprints202309.2086.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
photon; gravity; antigravity; dark energy; redshift
Online: 29 September 2023 (08:37:21 CEST)
REVIEW
|
doi:10.20944/preprints202309.1724.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
radio astronomy; radio telescopes; telecommunications; millimeter and submillimeter waves; atmospheric opacity
Online: 26 September 2023 (07:07:08 CEST)
REVIEW
|
doi:10.20944/preprints202308.1948.v2
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Sun: corona; Sun: radio radiation; acceleration of particles; magnetic reconnection; Sun: Radiation mechanisms: non-thermal; Sun: Meter-Wavelengths and Longer; Sun: activity; Sun: Flares; Sun: Ejections; Sun: magnetic fields
Online: 19 September 2023 (03:38:47 CEST)
ARTICLE
|
doi:10.20944/preprints202309.0620.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
dark matter; 2D dilaton gravity; MOND; modified gravity
Online: 11 September 2023 (05:27:22 CEST)
ARTICLE
|
doi:10.20944/preprints202302.0427.v3
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
extra dimension; thermodynamics and gravity; accelerated expansion; universe-antiuniverse pair
Online: 11 September 2023 (05:00:26 CEST)
ARTICLE
|
doi:10.20944/preprints202309.0434.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
cosmology; universe models; hubble tension
Online: 7 September 2023 (04:53:37 CEST)
ARTICLE
|
doi:10.20944/preprints202309.0400.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
pulsar candidate image; lossless compression; PixelCNN; FAST
Online: 6 September 2023 (09:48:00 CEST)
ARTICLE
|
doi:10.20944/preprints201907.0241.v2
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
recurrent neural networks; LSTM; lightcurves; simulation; variability
Online: 31 August 2023 (10:08:17 CEST)
ARTICLE
|
doi:10.20944/preprints202308.1689.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Bianchi type-V; f(R, T) gravity; Time-dependent Cosmological constant; Deceleration Parameter; Big Rip
Online: 24 August 2023 (08:22:46 CEST)
ARTICLE
|
doi:10.20944/preprints202308.1655.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
gravitation; gravitational redshift; equivalence principle; law of conservation of mechanical energy
Online: 24 August 2023 (04:03:23 CEST)
ARTICLE
|
doi:10.20944/preprints202308.1594.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
dark energy; cosmological parameters; numerical methods
Online: 23 August 2023 (07:50:58 CEST)
ARTICLE
|
doi:10.20944/preprints202308.1508.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
General relativity theory; cosmological constant extremal solution; Reissner-Nordström; Kerr; Kerr-Newman
Online: 22 August 2023 (08:57:37 CEST)
COMMUNICATION
|
doi:10.20944/preprints202308.1299.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
apparent surface density; concentration parameter; GAIA DR2; globular clusters; HST; space observations
Online: 18 August 2023 (10:18:22 CEST)
BRIEF REPORT
|
doi:10.20944/preprints202308.1320.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
dark matter; dark photons; diurnal variations
Online: 18 August 2023 (08:18:53 CEST)