Subjects -> ASTRONOMY (Total: 94 journals)
Showing 1 - 46 of 46 Journals sorted alphabetically
Advances in Astronomy     Open Access   (Followers: 49)
Annual Review of Astronomy and Astrophysics     Full-text available via subscription   (Followers: 50)
Annual Review of Earth and Planetary Sciences     Full-text available via subscription   (Followers: 67)
Artificial Satellites     Open Access   (Followers: 21)
Astrobiology     Hybrid Journal   (Followers: 11)
Astronomical & Astrophysical Transactions: The Journal of the Eurasian Astronomical Society     Hybrid Journal   (Followers: 7)
Astronomical Review     Open Access   (Followers: 5)
Astronomische Nachrichten     Hybrid Journal   (Followers: 4)
Astronomy & Geophysics     Hybrid Journal   (Followers: 49)
Astronomy and Astrophysics     Full-text available via subscription   (Followers: 67)
Astronomy and Computing     Hybrid Journal   (Followers: 6)
Astronomy Letters     Hybrid Journal   (Followers: 22)
Astronomy Reports     Hybrid Journal   (Followers: 22)
Astronomy Studies Development     Open Access   (Followers: 15)
Astroparticle Physics     Hybrid Journal   (Followers: 10)
Astrophysical Bulletin     Hybrid Journal   (Followers: 4)
Astrophysics     Hybrid Journal   (Followers: 35)
Astrophysics and Space Science     Hybrid Journal   (Followers: 49)
Astrophysics and Space Sciences Transactions (ASTRA)     Open Access   (Followers: 60)
Astropolitics: The International Journal of Space Politics & Policy     Hybrid Journal   (Followers: 13)
Celestial Mechanics and Dynamical Astronomy     Hybrid Journal   (Followers: 15)
Chinese Astronomy and Astrophysics     Full-text available via subscription   (Followers: 25)
Colloid Journal     Hybrid Journal   (Followers: 2)
Comptes Rendus : Physique     Open Access   (Followers: 2)
Computational Astrophysics and Cosmology     Open Access   (Followers: 6)
Earth and Planetary Science Letters     Hybrid Journal   (Followers: 143)
Earth, Moon, and Planets     Hybrid Journal   (Followers: 47)
Earth, Planets and Space     Open Access   (Followers: 77)
EAS Publications Series     Full-text available via subscription   (Followers: 8)
EPL Europhysics Letters     Partially Free   (Followers: 8)
Experimental Astronomy     Hybrid Journal   (Followers: 38)
Expert Opinion on Astronomy and Astrophysics     Open Access   (Followers: 8)
Extreme Life, Biospeology & Astrobiology - International Journal of the Bioflux Society     Full-text available via subscription   (Followers: 4)
Few-Body Systems     Hybrid Journal   (Followers: 1)
Foundations of Physics     Hybrid Journal   (Followers: 40)
Frontiers in Astronomy and Space Sciences     Open Access   (Followers: 15)
Galaxies     Open Access   (Followers: 6)
Globe, The     Full-text available via subscription   (Followers: 3)
Gravitation and Cosmology     Hybrid Journal   (Followers: 6)
Icarus     Hybrid Journal   (Followers: 71)
International Journal of Advanced Astronomy     Open Access   (Followers: 21)
International Journal of Astrobiology     Hybrid Journal   (Followers: 4)
International Journal of Astronomy     Open Access   (Followers: 22)
International Journal of Astronomy and Astrophysics     Open Access   (Followers: 36)
International Journal of Satellite Communications Policy and Management     Hybrid Journal   (Followers: 15)
International Letters of Chemistry, Physics and Astronomy     Open Access   (Followers: 8)
ISRN Astronomy and Astrophysics     Open Access   (Followers: 14)
Journal for the History of Astronomy     Full-text available via subscription   (Followers: 20)
Journal of Astrobiology & Outreach     Open Access   (Followers: 5)
Journal of Astronomical Instrumentation     Open Access   (Followers: 3)
Journal of Astrophysics     Open Access   (Followers: 33)
Journal of Astrophysics and Astronomy     Open Access   (Followers: 58)
Journal of Atmospheric and Solar-Terrestrial Physics     Hybrid Journal   (Followers: 133)
Journal of Geophysical Research : Planets     Full-text available via subscription   (Followers: 116)
Journal of Geophysical Research : Space Physics     Full-text available via subscription   (Followers: 136)
Journal of High Energy Astrophysics     Full-text available via subscription   (Followers: 25)
Kinematics and Physics of Celestial Bodies     Hybrid Journal   (Followers: 11)
KronoScope     Hybrid Journal   (Followers: 1)
Macalester Journal of Physics and Astronomy     Open Access   (Followers: 5)
Monthly Notices of the Royal Astronomical Society     Hybrid Journal   (Followers: 13)
Monthly Notices of the Royal Astronomical Society : Letters     Hybrid Journal   (Followers: 2)
Nature Astronomy     Hybrid Journal   (Followers: 14)
New Astronomy     Hybrid Journal   (Followers: 26)
New Astronomy Reviews     Full-text available via subscription   (Followers: 19)
Nonlinear Dynamics     Hybrid Journal   (Followers: 19)
NRIAG Journal of Astronomy and Geophysics     Open Access   (Followers: 4)
Physics of the Dark Universe     Open Access   (Followers: 4)
Planetary and Space Science     Hybrid Journal   (Followers: 106)
Planetary Science     Open Access   (Followers: 52)
Proceedings of the International Astronomical Union     Full-text available via subscription   (Followers: 2)
Publications of the Astronomical Society of Australia     Hybrid Journal   (Followers: 3)
Publications of the Astronomical Society of Japan     Hybrid Journal   (Followers: 4)
Research & Reviews : Journal of Space Science & Technology     Full-text available via subscription   (Followers: 20)
Research in Astronomy and Astrophysics     Full-text available via subscription   (Followers: 38)
Revista Mexicana de AstronomĂ­a y AstrofĂ­sica     Open Access   (Followers: 3)
Science China : Physics, Mechanics & Astronomy     Full-text available via subscription   (Followers: 4)
Science China Physics, Mechanics & Astronomy     Hybrid Journal   (Followers: 4)
Solar Physics     Hybrid Journal   (Followers: 29)
Solar System Research     Hybrid Journal   (Followers: 15)
Space Science International     Open Access   (Followers: 118)
Space Science Reviews     Hybrid Journal   (Followers: 92)
Space Weather     Full-text available via subscription   (Followers: 27)
Transport and Aerospace Engineering     Open Access   (Followers: 13)
Universe     Open Access   (Followers: 6)
Similar Journals
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International Journal of Astronomy
Number of Followers: 22  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2169-8848 - ISSN (Online) 2169-8856
Published by SAP Homepage  [105 journals]
  • The Processes that Determine the Formation and Chemical Composition of the
           Atmosphere of the Body in Orbit

    • Abstract: Publication year: 2020Source: International Journal of Astronomy, Volume 9, Number 1Weitter DuckssThe goal of this article is to analyze the formation of an atmosphere on the orbiting planets and to determine the processes that participate in the formation of an atmospheric chemical composition, as well as in determining it. The research primarily analyzes the formation of atmospheres on the objects of different sizes (masses) and at the same or different orbital distances. This paper analyzes the influence of a star's temperature, the space and the orbit's distance to an object's temperature level, as well as the influence of the operating temperature of atoms and chemical compounds to chemical composition and the representation of elements and compounds in an atmosphere. The objects, which possess different masses and temperatures, are able to create and do create different compositions and sizes of atmospheres in the same or different distances from their main objects (Saturn/Titan or Pluto). The processes that are included in the formation of an atmosphere are the following: operating temperatures of compounds and atoms, migrations of hydrogen, helium and the other elements and compounds towards a superior mass. The lack of oxygen and hydrogen is additionally related to the level of temperature of space, which can be classified into internal (characterized by the lack of hydrogen) and the others (characterized by the lack of oxygen).
  • The Evidence of the Split of the Moon

    • Abstract: Publication year: 2020Source: International Journal of Astronomy, Volume 9, Number 1O. K. AbouEassaThe theories of formation of craters and crack of the moon are not realistic. If we read history, the split of the moon event is discussed in many parts. In this paper I discuss the origin of crack and craters of moon. I show that the craters originated after the split of the moon to cohere its two splitting parts and this information is likely to be true because the split and craters of the moon are not old to the age of the moon, they are late and not more than 1388 years ago when the miracle happened in the time of Prophet Mohammed as the history is saying. The asteroid impacts did not formed the craters of the moon according to the explanation of formation of the craters because the debris of these asteroids does not exist which we can conclude that maybe this theory is not true.
  • Accretion onto Black Holes and Neutron Stars

    • Abstract: Publication year: 2019Source: International Journal of Astronomy, Volume 8, Number 2Najmeh Hajian DehkordiA black hole is a region of space in which the matter is so compact that nothing can escape from it, not even light; the "surface" of a black hole, inside of which nothing can escape, is called an event horizon. The matter that forms a black hole is crushed out of existence. Just as the Cheshire Cat disappeared and left only its smile behind, a black hole represents matter that leaves only its gravity behind. Black holes are usually formed when an extremely massive star dies in a supernova. However, some people think small black holes were formed during the Big Bang, and that the resulting "mini black holes" may be in great abundance in our galaxy. In reality, it is known that this limit can be violated, due to non-spherical geometry or various kinds of instabilities. Nevertheless, the Eddington limit remains an important reference point, and many of the details of how accretion proceeds above this limit remain unclear [Gregory B. Poole Chris Blake, David Parkinson, 2012]. Understanding how this so-called super-Eddington accretion occurs is of clear cosmological importance, since it potentially governs the growth of the first supermassive black holes (SMBHs) and the impact this growth would have had on their host galaxies and the epoch of reionization, as well as improving our understanding of accretion physics more generally.
  • God and Universe

    • Abstract: Publication year: 2019Source: International Journal of Astronomy, Volume 8, Number 2Sohrab AbdollahiGod and the universe both are mysteries. The main question is that who created whom' God created man or man created God' What is the reality of universal concepts such as the super universe, infinity, absence, emptiness, and nothingness' Man has created a God with humanistic behavior to share with him, his agony, hopes, disappointments, fears, stress, and anxiety. Man-made God, has spontaneous absolute power (almighty), self-conscious, he can override all the universal laws, create everything at once, has justice and he is singular. However, this is the fake side of the story. Then who is the real God' Real God is physicochemical laws that use energy to create everything along with the time dimension in non-Euclidean space of the universe. God may be both, singular and plural, depending on the reference frame in which someone looking at him. Matrices representation of plural Gods has the same elements as a matrix representation of singular God through the addition of plural matrices. A real god doesn’t create at once, his actions are unintentional, exact identical creation is impossible, he has no anger, no mercy and doesn’t want to have any control over people’s destiny, his justice is not humanistic, he just acts based on the universal laws. God power is not absolute, his power and abilities are defined by the universal laws. The real God never violates or deviates from physiochemical laws of the universe. Integration of infinitesimal God, dg, is equal to ∞ ±1. God coexist in the present time (∞), future (∞ +1) and past (∞ - 1). With having a speed of light, you may be able to enter into the past, but it is impossible to enter into future. In the future and the past, the differential of time with respect to motion, dt/dx, is equal to zero and speed, υ, is equal to infinity. The masses in the universe are in continues motion not because of the universe expansion, but because of the elastic interaction of the masses with the wall of the nothingness.
  • The Manifestations of Mass

    • Abstract: Publication year: 2019Source: International Journal of Astronomy, Volume 8, Number 2Ranku KalitaThe existence of visible and dark matter, and the continued direct undetectability of dark matter, necessitates a theoretical investigation into the nature of inertial mass that constitutes visible and dark matter. It is proposed that inertial mass is manifested dually: materially, as extrinsic inertial mass and immaterially, as intrinsic inertial mass. Visible matter experiences inertia when accelerated because the applied real force on the material extrinsic manifestation inertial mass is not cancelled by the equal and opposite inertial pseudo force on the immaterial intrinsic manifestation of inertial mass. It is also proposed that all visible matter experience inertia all the time in cosmological acceleration, because spacetime real force on extrinsic inertial mass is not cancelled by the inertial pseudo force on intrinsic inertial mass. Visible matter in gravitational freefall does not experiencing inertia because inertial pseudo force associated with intrinsic inertial mass is cancelled by the pseudo-like gravitational force associated with gravitational mass. Immaterial intrinsic inertial mass also exists independently as intrinsic inertial mass objects, which are in cosmological freefall and do not experience inertia, because of cancellation between spacetime pseudo-like force and inertial pseudo force on intrinsic inertial mass. Immaterial intrinsic inertial mass objects in cosmological freefall are the dark matter in the universe.
  • General Relativity Model for Oblate Spheroidal Plasma Stars

    • Abstract: Publication year: 2019Source: International Journal of Astronomy, Volume 8, Number 1Chifu E. Ndikilar, Hafeez Y. HafeezThe mechanics of star interiors has remained a subject of much research concern. Many theories have been proposed to account for the behavior of stars. However, these theories have one shortcoming or the other. A star model based on general relativity theory and current astrophysical observations was recently proposed. High gravitational forces, mass concentration in cores, rapid rates of spin and high centripetal forces gives stars their spheroidal shapes. In this article, the gravitational metric tensor of a spherically symmetric sphere containing a non compressible liquid is extended to formulate an oblate spheroidal plasma star model. Using removable space singularities at the Hilbert radius and in outer space, the plasma stars are classified into three major groups (regular, neutron stars and pulsars, black holes). The metric tensor for an oblate spheroidal liquid star obtained has six non zero components as opposed to four for spherical plasma star model.
  • Modeling Celestial Mechanics Using the Fibonacci Numbers

    • Abstract: Publication year: 2019Source: International Journal of Astronomy, Volume 8, Number 1Robert G. SaccoThe purpose of this study was to model the relationship between celestial mechanical cycles and the Fibonacci numbers. Data were collected on known celestial mechanical cycles including the period of rotation, precession, and orbit. The data were then compared to two time scaling methods for the Fibonacci numbers based on 24-hour and 365-day units of time. Results showed a significant correlation between celestial mechanics and Fibonacci numbers measured in 24-hour periods with an average deviation of less than 3%. No statistically significant correlation was found between celestial mechanics and Fibonacci numbers measured in 365-day periods. These results will be useful for understanding the optimal way the solar system achieves its stability.
  • Characterizing Coronal Mass Ejections in Solar Cycle Analysis

    • Abstract: Publication year: 2019Source: International Journal of Astronomy, Volume 8, Number 1Ryan Manuel D. Guido, Jason B. KalawThe Sun is the major source of heat and light in our solar system. Solar activity is associated with several factors including radio flux, solar irradiance, magnetic field, solar flares, coronal mass ejections (CMEs), and solar cycles. This study is unique as it determines the Sun’s activity specifically for the coronal mass ejection, its trend during solar cycle 23 and gives significance to the statistical nature in the form of normality of the emissions of the coronal mass ejections. The data were gathered from the different solar databases to obtain accurate results of the data. A time series analysis was used to measure the CME data for larger cases and to see the apparent difference and trends of the CMEs. This study analyzed the coronal mass ejections in the solar cycle 23 analysis.
  • An Action-Reaction Interpretation of the Interaction between Cosmic
           Expansion and Gravitation

    • Abstract: Publication year: 2018Source: International Journal of Astronomy, Volume 7, Number 1Thomas A. Kriz, Adam T. KrizAn updated review is presented to demonstrate the impact an expanding cosmos on three approaches to analyzing gravity. 1) the General Relativity based tensor method, 2) the Escape Velocity based conservation of energy method, and 3) the Force-Balanced based action-reaction method. The only common solution from all three methods is a flat space result with critical matter density ρc=3H2/8πG where H is the Hubble parameter, and G is the gravitational constant. It is also shown that the use of a Force-Balance based analysis for action-reaction, derived from a conservation of energy baseline, is analytically equivalent to that of a General Relativity tensor-based analysis for a flat space solution. Galaxy-based energy conservation and force-balanced solutions in an expanding cosmos also indicate that cosmic expansion is the unique action-based cause of a gravitational reaction at a galaxy level. Friedmann solutions from General Relativity for open and closed space curvature, however, add a speed of light term to H that violates galaxy-based conservation of energy and action-reaction force balance requirements. Thus, such curved space solutions are not physically relevant in an expanding cosmos. Evidence from Guth-Linde Inflationary Universe models is also cited to support the validity of a unique galaxy-based flat space solution.
  • The Theory about Light

    • Abstract: Publication year: 2018Source: International Journal of Astronomy, Volume 7, Number 1J. W. VegtA change in approach in the theory of Relativistic Electromagnetic Fields, introduced by James Clerk Maxwell in 1865 and the theory of “Electric-Magnetic / Space-Time” conversions by Einstein-Lorentz-Minkovski in 1905 in the theory of Special Relativity (specially described by the Lorentz-Transformations) and the Theory of General Relativity (GTR) by Albert Einstein in 1915 has been presented in this article. What is known in Astrophysics has originally been based on the fundamental knowledge of the classical Electromagnetic theories of James Clerk Maxwell and the famous Theory of General Relativity by Albert Einstein. Electromagnetic radiation and in specific light has always been the carrier for this information. That is a fundamental problem. Because what do we really know about light' When James Maxwell published his famous set of 4 electromagnetic equations, the Maxwell equations, he did not built his theory on a logical fundament. His foundation was not logical at all. Why would a set of 4 electromagnetic equations which are correct at low frequencies describe a physical phenomenon like the propagation of light with a speed that at that time had never been measured before' Since then nobody ever doubted about the correctness of the theories of Maxwell. The success of his predictions made Maxwell famous. But fame is not a ground for fundamental science.
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