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
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
doaj +1 more source
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
core +4 more sources
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
doaj +1 more source
Spherical Bondi accretion onto a magnetic dipole [PDF]
, 1998 Quasi-spherical supersonic (Bondi-type) accretion to a star with a dipole magnetic field is investigated using resistive magnetohydrodynamic simulations.
Bisnovatyi-Kogan G. S. +18 more
core +3 more sources
Литосфера, 2017 General positions on plate-tectonic metallogeny are presented and the grounds for singling out the metallogenic factors of orogenic systems are given. Mobilistic paradigma corresponds to the genotype of orogens and belts which being formed at the expense
Viktor M. Necheukhin, Elena N. Volchek
doaj +1 more source
The Accretion Disc Particle Method for Simulations of Black Hole Feeding and Feedback
, 2010 Black holes grow by accreting matter from their surroundings. However, angular momentum provides an efficient natural barrier to accretion and so only the lowest angular momentum material will be available to feed the black holes.
Andrew King +41 more
core +1 more source
Accretion variability of Herbig Ae/Be stars observed by X-Shooter. HD 31648 and HD 163296 [PDF]
, 2013 This work presents X-Shooter/VLT spectra of the prototypical, isolated Herbig Ae stars HD 31648 (MWC 480) and HD 163296 over five epochs separated by timescales ranging from days to months.
Brittain, S. D. +8 more
core +4 more sources
The high energy X-ray probe (HEX-P): studying extreme accretion with ultraluminous X-ray sources
Frontiers in Astronomy and Space Sciences, 2023 Introduction: Ultraluminous X-ray sources (ULXs) represent an extreme class of accreting compact objects: from the identification of some of the accretors as neutron stars to the detection of powerful winds travelling at 0.1–0.2 c, the increasing ...
Matteo Bachetti +28 more
doaj +1 more source
, 2006 We compare different examples of spherical accretion onto a gravitating mass. Limiting cases include the accretion of a collisionally dominated fluid and the accretion of collisionless particles.
Begelman M. C. +3 more
core +2 more sources