Results 81 to 90 of about 480,960 (375)
Annalen der Physik, EarlyView.The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley +1 more source
A spectroscopic study of the peculiar galaxy UGC 5600 [PDF]
, 2002 We present our observations of the galaxy UGS 5600 with a long-slit spectrograph (UAGS) and a multipupil field spectrograph (MPFS) attached to the 6-m Special Astrophysical Observatory telescope.
L. Shalyapina, A. Moiseev, V. Yakovleva
semanticscholar +1 more source
Journal of Applied Polymer Science, EarlyView.A synergistic flame retardant containing melamine polyphosphate and zinc borate was prepared and applied to provide rLLDPE/CaCO3 composites with superior flame retardancy. ABSTRACT The use of recycled thermoplastics is crucial for addressing environmental challenges such as waste management and sustainability.
Antonio Benjamim Mapossa +2 more
wiley +1 more source
Estimating Cluster Masses: A Comparative Study between Machine Learning and Maximum Likelihood
The Astrophysical JournalWe compare an autoencoder convolutional neural network (AE-CNN) with conventional maximum-likelihood estimation (MLE) for inferring cluster virial masses, M _v , directly from the galaxy distribution around clusters, without identifying members or ...
Raeed Mundow, Adi Nusser
doaj +1 more source
Searching for Barium Stars from the LAMOST Spectra Using the Machine-learning Method: I
The Astronomical Journal, 2023 Barium stars are chemically peculiar stars that exhibit enhancement of s -process elements. Chemical abundance analysis of barium stars can provide crucial clues for the study of the chemical evolution of the Galaxy. The Large Sky Area Multi-Object Fiber
Fengyue Guo +7 more
doaj +1 more source
The Peculiar Velocity Function of Galaxy Clusters [PDF]
, 1996 The peculiar velocity function of clusters of galaxies is determined using an accurate sample of cluster velocities based on Tully-Fisher distances of Sc galaxies (Giovanelli et al 1995b).
Croft R. A. C. +3 more
core +2 more sources
Spiral- and bar-driven peculiar velocities in Milky Way-sized galaxy simulations [PDF]
, 2015 We investigate the kinematic signatures induced by spiral and bar structure in a set of simulations of Milky Way-sized spiral disc galaxies. The set includes test particle simulations that follow a quasi-stationary density wave-like scenario with rigidly
R. Grand +7 more
semanticscholar +1 more source
Journal of the Association for Information Science and Technology, EarlyView.Abstract Provenance is the story of how something has come to be. In this paper, we provide a systematic literature review to categorize the various notions of provenance in Information Sciences. The goal of this review is to paint a broader picture of the multiple uses of provenance at play and to enhance our understanding of the importance of ...
Rhiannon Bettivia +2 more
wiley +1 more source
Discovery of a 100 kpc Narrow Curved Twin Jet in the S-shaped Giant Radio Galaxy J0644+1043
The Astrophysical JournalWe report the discovery of an S-shaped morphology of the radio galaxy J0644+1043 imaged with a 30 μ Jy beam ^−1 sensitive 525 MHz broadband (bands 3 + 4) uGMRT map.
Sagar Sethi +3 more
doaj +1 more source
Deep Learning nearby galaxy peculiar velocities [PDF]
, 2022 Kevin M. Quigley +2 more
openalex +1 more source