Results 21 to 30 of about 308,331 (322)
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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Mapping accretion and its variability in the young open cluster NGC 2264: a study based on u-band photometry [PDF]
, 2014 We aim at characterizing the accretion properties of several hundred members of the star-forming cluster NGC 2264 (3 Myr). We performed a deep u,g,r,i mapping and a simultaneous u+r monitoring of the region with CFHT/MegaCam in order to directly probe ...
Alencar, Silvia H. P. +11 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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Accretion Rates and the Accretion Efficiency in AGNs [PDF]
Publications of the Astronomical Society of Japan, 2003 Abstract We used the standard geometrical-thin accretion theory to obtain the accretion rates in Seyfert 1 galaxies and quasars. Combining the accretion rates with the bolometric luminosity, we obtained the accretion efficiency. We found that most Seyfert 1 galaxies and radio-quiet quasars have lower accretion efficiencies, while most ...
Weihao, Bian, Yongheng, Zhao
openaire +2 more sources
Impacts of urbanization and tourism on the erosion and accretion of European, Asian and African coastal areas and possible solutions [PDF]
Urbanism. Arhitectura. Constructii, 2020 Coastal areas are very important due to the ecosystem services provided to the inhabitants. However, these advantages have resulted into an increasing attraction, especially in the recent centuries.
Huu Duy Nguyen +11 more
doaj
Galaxies, 2023 We study radio and X-ray emissions from intermediate-mass black holes (IMBHs) and explore the unified model for accretion and ejection processes. The radio band survey of IMBH (candidate) hosted galaxies indicates that only a small fraction (∼0.6%) of ...
Xiaolong Yang, Jun Yang
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