Results 11 to 20 of about 152,722 (200)
Frontiers in Astronomy and Space Sciences, 2021 One normal outburst and three mini-outbursts have been detected by Rossi X-ray Timing Explorer satellite after 2000 in the well-known black hole X-ray binary XTE J1550-564.
Ai-Jun Dong +10 more
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2200 million years of crustal evolution: The Baltic Shield [PDF]
Bulletin of the Geological Society of Finland, 1986 The crustal history of the Baltic shield is interpreted in the light of the plate tectonic concept. Five tectonic cycles, each characterized by special lithological and structural features, are distinguished: The Early Archean (> 2900 Ma), the Late ...
G. Gaál
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A Brief Review on Primordial Black Holes as Dark Matter
Frontiers in Astronomy and Space Sciences, 2021 Primordial black holes (PBHs) represent a natural candidate for one of the components of the dark matter (DM) in the Universe. In this review, we shall discuss the basics of their formation, abundance and signatures.
Pablo Villanueva-Domingo +2 more
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The Radiative Transfer in Accretion Discs with Linear Plank Function: Role of Scattering Effect [PDF]
Iranian Journal of Astronomy and Astrophysics, 2020 Radiative transfer in a geometrically thin accretion disc with fnite optical depth is considered under the plane-parallel approximation. The Eddington factor that is defned as the ratio of the mean intensity to radiation stress tensor, is assumed be ...
Fahimeh Habibi, Maryam Samadi
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Physical and Social Factors of Shoreline Change in Gebang, Cirebon Regency 1915 – 2019
Journal of Applied Geospatial Information, 2020 Shoreline changes are the main concern for coastal management. In Indonesia coastal zone is the populated region for marine and fishery economic sectors. Dynamic of the region shown by shoreline change.
Millary Agung Widiawaty +2 more
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TeMA: Journal of Land Use, Mobility and Environment, 2023 Lakes and their shorelines are important ecosystem areas with the diversity of living species they host. In addition, lakes are an almost indispensable resource for humans as a source of fresh water.
Gizem Dinç
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The Relationship between Mg ii Broad Emission and Quasar Inclination Angle
Frontiers in Astronomy and Space Sciences, 2017 Several observed spectral properties of quasars are believed to be influenced by quasar orientation. In this investigation we examine the effect of orientation on the Mg ii line located at 2,798 Å in a sample of 36 radio-loud quasars, with orientation ...
Conor Wildy, Bozena Czerny
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Reference Array and Design Consideration for the Next-Generation Event Horizon Telescope
Galaxies, 2023 We describe the process to design, architect, and implement a transformative enhancement of the Event Horizon Telescope (EHT). This program—the next-generation Event Horizon Telescope (ngEHT)—will form a networked global array of radio dishes capable of ...
Sheperd S. Doeleman +28 more
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Journal of Marine Science and Engineering, 2021 Persistence of tidal wetlands under conditions of sea level rise depends on vertical accretion of organic and inorganic matter, which vary in their relative abundance across estuarine gradients.
Jenny R. Allen +2 more
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Circumbinary Disks: Accretion and Torque as a Function of Mass Ratio and Disk Viscosity [PDF]
Astrophysical Journal, 2019 Using numerical hydrodynamics calculations and a novel method for densely sampling parameter space, we measure the accretion and torque on a binary system from a circumbinary disk.
P. Duffell +6 more
semanticscholar +1 more source