Zobrazeno 1 - 10
of 261
pro vyhledávání: '"Dhang P"'
The presence of a strong, large-scale magnetic field in an accretion flow leads to extraction of the rotational energy of the black hole (BH) through the Blandford-Znajek (BZ) process, believed to power relativistic jets in various astrophysical sour
Externí odkaz:
http://arxiv.org/abs/2411.02515
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 530, Issue 3, May 2024, Pages 2778-2794
We study the magneto-rotational instability (MRI) driven dynamo in a geometrically thin disc ($H/R\ll 1$) using stratified zero net flux (ZNF) shearing box simulations. We find that mean fields and EMFs oscillate with a primary frequency $f_{\rm dyn}
Externí odkaz:
http://arxiv.org/abs/2308.07959
We describe a novel method to compute the components of dynamo tensors from direct magnetohydrodynamic (MHD) simulations. Our method relies upon an extension and generalisation of the standard H\"ogbom CLEAN algorithm widely used in radio astronomy t
Externí odkaz:
http://arxiv.org/abs/2308.00059
The present study explores a cost-effective method for using activated ground granulated blast furnace slag (GGBFS) and silica fume (SF) as cement substitutes. Instead of activating them with expensive alkali solutions, the present study employs indu
Externí odkaz:
http://arxiv.org/abs/2305.12288
Large-scale magnetic fields play a vital role in determining the angular momentum transport and generating jets/outflows in the accreting systems, yet their origin remains poorly understood. We focus on radiatively inefficient accretion flows (RIAFs)
Externí odkaz:
http://arxiv.org/abs/2208.02269
Observations of $\rm SgrA^*$ have provided a lot of insight on low-luminosity accretion, with a handful of bright flares accompanied with orbital motion close to the horizon. It has been proposed that gas supply comes from stellar winds in the neighb
Externí odkaz:
http://arxiv.org/abs/2205.12287
Autor:
Qi Yan Putt, Zubaidah Ya’cob, Peter H. Adler, Chee Dhang Chen, Yan Xin Hew, Noor Izwan-Anas, Koon Weng Lau, Mohd Sofian-Azirun, Xuan Da Pham, Hiroyuki Takaoka, Van Lun Low
Publikováno v:
Parasites & Vectors, Vol 16, Iss 1, Pp 1-21 (2023)
Abstract Background Prompt and precise identification of black flies (Simuliidae) is crucial, given their biting behaviour and significant impact on human and animal health. To address the challenges presented by morphology and chromosomes in black f
Externí odkaz:
https://doaj.org/article/e4ac8ac3ac6a4b54b063e3b27c35a6cd
Autor:
Yan Xin Hew, Zubaidah Ya’cob, Peter H. Adler, Chee Dhang Chen, Koon Weng Lau, Mohd Sofian-Azirun, Abdullah Halim Muhammad-Rasul, Qi Yan Putt, Noor Izwan-Anas, Upik Kesumawati Hadi, I. Wayan Suana, Hiroyuki Takaoka, Van Lun Low
Publikováno v:
Parasites & Vectors, Vol 16, Iss 1, Pp 1-15 (2023)
Abstract Background DNA barcoding is a valuable taxonomic tool for rapid and accurate species identification and cryptic species discovery in black flies. Indonesia has 143 nominal species of black flies, but information on their biological aspects,
Externí odkaz:
https://doaj.org/article/af117e2fc35e431f867adc5f764b2dd7
Numerous studies on hydrodynamics of the Keplerian as well as the sub-Keplerian accretion disc around a compact object (e.g., white dwarf (WD), neutron star (NS), or a black hole (BH)) attempted to explain the observed UV, soft and hard X-ray spectra
Externí odkaz:
http://arxiv.org/abs/2007.10861
We explore the MRI driven dynamo in a radiatively inefficient accretion flow (RIAF) using the mean field dynamo paradigm. Using singular value decomposition (SVD) we obtain the least squares fitting dynamo coefficients $\alpha$ and $\gamma$ by compar
Externí odkaz:
http://arxiv.org/abs/1912.04916