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29 results for “Stars”

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Research ArticleOpen accessEvery word in the titleAsymptotic Giant Branch Stars Migration from the Central of the Milky Way Galaxy to our Sun’s Birthplace and its Relation with Silicon Carbide GrainsAhmad Hashem AbdelhadiSilicon carbide grains found in meteorites are peculiar in their age and isotopic ratios; they formed before the Sun was born and their isotopic signature indicates that they come from a different galactic region. This study aims to seek a possible paradigm for such richness and peculiarity through Monte Carlo simulation of scattering of Asymptotic Giant Branch (AGB) stars off … …Space Science International, Vol. 1, Issue 1 · 20 Jun 2013 · 7,053 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleGravity Assist and Scattering off AGB Stars off Molecular CloudsAhmad Hashem AbdelhadiThe scattering of stellar orbits by galactic molecular clouds is studied in hope of explaining isotopic peculiarities of presolar grains from Asymptotic Giant Branch (AGB) stars. Silicon isotopic anomalies found in the mainstream Silicon Carbide (SiC) grains are observed to have heavy isotopes enriched. To explain the isotopic heaviness I propose that AGB stars that formed in the interior region … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,420 accessesView PDFCite
Review ArticleOpen accessIn the keywordsA New Exoplanet Reveals its IdentityNicolae Petrescu, Raffaella Aversa, Antonio Apicella, Florian Ion Tiberiu PetrescuPositioned approximately 70 light years from Earth a sun named by astronomer HD 97658, is nearly bright enough to be seen even with the naked eye. The more interesting part of the problem lies in the fact that this sun, this star, also has an exoplanet HD 97658b, the size of which is approximately double compared to our planet Earth … …Journal of Aircraft and Spacecraft Technology, Vol. 2, Issue 1 · 5 Jun 2018 · 7,495 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOur UniverseRelly Victoria Petrescu, Raffaella Aversa, Bilal Akash et al.It's hard to know ourselves and our role as humanity, without knowing our precise location first. In the universe where we find ourselves (what we know not much about), there are billions of galaxies. A galaxy is a large cluster of stars (suns), i.e., solar systems; on average an ordinary galaxy contains about two billion stars (suns), which may or … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 2 · 21 Jun 2017 · 7,343 accessesView PDFCite
Research ArticleOpen accessIn the keywordsBOOM: Rainbow’s Gravity as the Source of Light RefractionMohsen LutephyAli, A. F., Faizal, M., & Majumder, B. (2015). Absence of an effective Horizon for black holes in Gravity’s Rainbow. Europhysics Letters, 109(2), 20001. https://doi.org/10.1209/0295-5075/109/20001 Ali, A. F., & Khalil, M. M. (2015). A proposal for testing gravity’s rainbow. Europhysics Letters, 110(2), 20009. https://doi.org/10.1209/0295-5075/110/20009 Amelino-Camelia, G., Ellis, J., Mavromatos, N. E., & Nanopoulos, D. V. (1997). Distance Measurement and Wave … …Physics International, Vol. 12, Issue 1 · 23 Dec 2021 · 8,252 accessesView PDFCite
Research ArticleOpen accessIn the keywordsExplosion of the Light: Alliance of the Planck and Mach and Einstein-Riemannian PhysicsMohsen LutephyOn the evident tripartite equivalency of the light speed and time and distance as a natural paradigm introduced here it is deduced the natural metric tensor of the universe via Mach's mechanics (metric fully governed by measurable universe) included to the fully variable light speed and fully variable gravitational G accompanied with Planckian quantum gravity in natural quantization of the … …Physics International, Vol. 10, Issue 1 · 6 Dec 2019 · 8,133 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEnergy Sources TodayNicolae Petrescu, Florian Ion Tiberiu PetrescuThe paper intends to go through some major energy sources that need to be further developed in order to provide the energy needed for an indefinite period of time. It is proposed that both water and solar energy, as well as wind energy together with nuclear energy, are important, but other modern energy sources capable of generating energy directly or … …Energy Research Journal, Vol. 10, Issue 1 · 21 Aug 2019 · 6,862 accessesView PDFCite
Research ArticleOpen accessIn the keywordsWhat is a UFO?Relly Victoria Petrescu, Raffaella Aversa, Bilal Akash et al.There is much talk about UFOs sometimes. Is there anyway? If so what are they? Here are some questions we want to answer them briefly in this paper. An unidentified flying object or UFO is defined as any apparent object in the sky that can’t be identified and classified as an object or phenomenon already known. But the name is … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 2 · 25 Jun 2017 · 17,960 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe Eclipsing X-Ray Binary System Centaurus X-3Omar Al-BanawiProblem statement: We present new physical and geometrical elements for the eclipsing X-ray binary system Krzemenski's star (Centaurus X-3). Approach: In this study, the procedure depended on getting the best fit between the observational photometric light curves and synthetic ones built up in accordance to the Roche model. Results: The estimated elements showed a good agreement with the early estimated … …Physics International, Vol. 1, Issue 1 · 31 Mar 2010 · 7,560 accessesView PDFCite
Research ArticleOpen accessIn the abstractShift of Zeeman Components of Ionic Spectral Lines Caused by the Angular Doppler EffectEugene OksThe angular Doppler effect was introduced by Garetz. While the usual Doppler effect is caused by the translational motion of the emitter, the angular Doppler effect is caused by the rotational motion of the emitter. It results into the frequency shift of a circularly-polarized light. In the present paper we analyze the angular Doppler effect caused by the rotational motion … …Physics International, Vol. 15, Issue 1 · 16 Jun 2025 · 6,449 accessesView PDFCite