Results 111 to 120 of about 64,819 (265)
Comparison of HMG and Flat Rotation Velocities Inferred from Galaxy–Galaxy Weak Lensing
The Astrophysical JournalDespite the success of dark matter models, unresolved issues require exploring alternatives such as modified gravity theories. In this context, we examine the compatibility of the hyperconical modified gravity (HMG) with galaxy rotation curves inferred ...
Robert Monjo
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Chemie Ingenieur Technik, Volume 98, Issue 3, Page 98-105, March 2026.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
Fitting dwarf galaxy rotation curves with conformal gravity [PDF]
, 2011 We continue our study of the application of the conformal gravity theory to galactic rotation curves. Previously we had studied a varied 111 spiral galaxy sample consisting of high surface brightness galaxies, low surface brightness galaxies and dwarf ...
J. O’Brien, P. Mannheim
semanticscholar +1 more source
A Re‐Examination of Foundational Elements of Cosmology
Fortschritte der Physik, Volume 74, Issue 3, March 2026.ABSTRACT This paper undertakes a conceptual re‐examination of several foundational elements of cosmology through the lens of spacetime symmetries. A new derivation of the Friedmann–Lemaître–Robertson–Walker metric is obtained by a careful conceptual examination of rotations and translations on generic manifolds, followed by solving the rotational and ...
Lavinia Heisenberg
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On the Extraction of Optical Rotation Curves for Spiral Galaxies [PDF]
Journal of Astronomy and Space Sciences, 1998 We discussed four different methods - the single, double and triple Gaussian fits, and the intensity weighted centroid fit - which extract rotation curves from several emission lines ([OII], Hβ, [OIII], and Hα) of spiral galaxies. Spatial extents and the
Young-Jong Sohn +2 more
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Prioritized Real‐Time UAV‐Based Vessel Detection for Efficient Maritime Search
Journal of Field Robotics, Volume 43, Issue 2, Page 561-577, March 2026.ABSTRACT Real‐time vessel detection in maritime environments is crucial for diverse applications requiring speed and accuracy. Static camera views often introduce blind spots, compromising detection efficiency. This paper proposes a novel, real‐time UAV‐based system that uses a dynamic camera control strategy to address this limitation.
Lyes Saad Saoud +6 more
wiley +1 more source
Template Rotation Curves for Disk Galaxies
The Astrophysical Journal, 2006 21 pages, 12 figures. To appear in the Astrophysical Journal (April 2006)
Catinella, Barbara +2 more
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KNaCaSi4O10 Obtained From Crystallization Experiments in the Quaternary System K2O–Na2O–CaO–SiO2
Journal of the American Ceramic Society, Volume 109, Issue 3, March 2026.The compound KNaCaSi4O10 has been identified in crystallization experiments of glasses in the quaternary system K2O–Na2O–CaO–SiO2 and has undergone structural characterization. Vibrational spectroscopic data have been acquired and interpreted using density functional theory (DFT) calculations.
Volker Kahlenberg +2 more
wiley +1 more source
Al‐Khadhaf: The first camera‐observed (H5–6) meteorite fall from Oman
Meteoritics &Planetary Science, Volume 61, Issue 3, Page 522-547, March 2026.Abstract A fireball camera system installed in 2022 by the Oman Meteorite Monitoring Project (OMMP) as part of the Global Fireball Observatory (GFO) recorded a 3.2 s fireball on March 8, 2022 at 8:15 p.m. UTC. A meteoroid of 4 ± 2 kg entered the atmosphere at 14.0 km/s.
Anna Zappatini +18 more
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