Browsing Exact and Earth Sciences by Title
Now showing items 2738-2757 of 5964
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J-PLUS : a catalogue of globular cluster candidates around the M 81/M 82/NGC 3077 triplet of galaxies
(2022) [Journal article]Globular clusters (GCs) are proxies of the formation assemblies of their host galaxies. However, few studies exist targeting GC systems of spiral galaxies up to several effective radii. Through 12-band Javalambre Photometric ... -
J-PLUS : analysis of the intracluster light in the Coma cluster
(2019) [Journal article]Context. The intracluster light (ICL) is a luminous component of galaxy clusters composed of stars that are gravitationally bound to the cluster potential, but do not belong to the individual galaxies. Previous studies of ... -
J-PLUS: a wide-field multi-band study of the M 15 globular cluster : evidence of multiple stellar populations in the RGB
(2019) [Journal article]Context. As a consequence of internal and external dynamical processes, Galactic globular clusters (GCs) have properties that vary radially. Wide-field observations covering the entire projected area of GCs out to their ... -
J-PLUS : detecting and studying extragalactic globular clusters
(2022) [Journal article]Context. Extragalactic globular clusters (GCs) are key objects in studies of galactic histories. The advent of wide-field surveys, such as the Javalambre Photometric Local Universe Survey (J-PLUS), offers new possibilities ... -
J-PLUS : identification of low-metallicity stars with artificial neural networks using SPHINX
(2019) [Journal article]Context. We present a new methodology for the estimation of stellar atmospheric parameters from narrow- and intermediate-band photometry of the Javalambre Photometric Local Universe Survey (J-PLUS), and propose a method ... -
J-PLUS : impact of bars on quenching timescales in nearby green valley disc galaxies
(2019) [Journal article]Context. Between the blue cloud and the red sequence peaks on the galaxy colour–magnitude diagram there is a region sparsely populated by galaxies called the green valley. In a framework where galaxies mostly migrate on ... -
J-PLUS : measuring Hα emission line fluxes in the nearby universe
(2019) [Journal article]n this paper we aim to validate a methodology designed to obtain Hα emission line fluxes from J-PLUS photometric data. J-PLUS is a multi narrow-band filter survey carried out with the 2 deg2 field of view T80Cam camera, ... -
J-PLUS : morphological star/galaxy classification by PDF analysis
(2019) [Journal article]Aims. Our goal is to morphologically classify the sources identified in the images of the J-PLUS early data release (EDR) as compact (stars) or extended (galaxies) using a dedicated Bayesian classifier. Methods. J-PLUS ... -
J-PLUS : on the identification of new cluster members in the double galaxy cluster A2589 and A2593 using PDFs
(2019) [Journal article]Aims. We aim to use multiband imaging from the Phase-3 Verification Data of the J-PLUS survey to derive accurate photometric redshifts (photo-z) and look for potential new members in the surroundings of the nearby galaxy ... -
J-PLUS : the Javalambre Photometric Local Universe Survey
(2019) [Journal article]The Javalambre Photometric Local Universe Survey (J-PLUS ) is an ongoing 12-band photometric optical survey, observing thousands of square degrees of the Northern Hemisphere from the dedicated JAST/T80 telescope at the ... -
J-PLUS : two-dimensional analysis of the stellar population in NGC 5473 and NGC 5485
(2019) [Journal article]Context. The spatial variations of stellar population properties within a galaxy are intimately related to their formation process. Therefore, spatially resolved studies of galaxies are essential to uncover their formation ... -
J/(psi) suppression in electro-and hadroproduction : a conventional physics explanation
(1994) [Journal article]Having in mind the importance of the phenomenon for the search for the quark-gluon plasma in the collision of heavy nuclei, we study the suppression of J/Ψ production in leptoproduction and hadroproduction on heavy nuclear ... -
Juice test for identification of nonerosive reflux disease in heartburn patients
(2018) [Journal article]Background/Aims Evaluation of esophageal clearance by orange juice swallowing could be useful to identify different categories of gastroesophageal reflux disease. We determined whether a juice test at the beginning of ... -
Julia sets are uniformly perfect
(1992) [Journal article]We prove that Julia sets are uniformly perfect in the sense of Pommerenke (Arch. Math. 32 (1979), 192-199). This implies that their linear density of logarithmic capacity is strictly positive, thus implying that Julia sets ... -
Just-in-time teaching para o ensino de Física e Ciências : uma revisão sistemática da literatura
(2022) [Journal article]Apresenta-se neste trabalho uma Revisão Sistemática da Literatura acerca da metodologia ativa de ensino Just-in-Time Teaching empregada dentro das subáreas Ensino de Física e Educação em Ciências. Após seleção de 123 ... -
J/ψ elliptic and triangular flow in Pb-Pb collisions at √sNN= 5.02 TeV
(2020) [Journal article]The inclusive J/ψ elliptic (v2) and triangular (v3) flow coefficients measured at forward rapidity (2.5 < y < 4) and the v2 measured at midrapidity (|y| < 0.9) in Pb-Pb collisions at at √sNN = 5.02 TeV using the ALICE ... -
J/ψ elliptic flow in Pb-Pb collisions at √sNN=5.02 TeV
(2017) [Journal article]We report a precise measurement of the J=ψ elliptic flow in Pb-Pb collisions at p ¼ 5.02 TeV with the ALICE detector at the LHC. The J=ψ mesons are reconstructed at midrapidity (jyj < 0.9) in the dielectron decay channel ... -
J/Ψ photoproduction in peripheral AA collisions
(2017) [Journal article]The exclusive photoproduction of the heavy vector mesons J=Ψ is investigated in the context of peripheral lead-lead collisions for the energies available at the LHC, ps ¼ 2.76 TeV and sp ¼ 5.02 TeV. Using the light-cone ... -
J/ψ production as a function of charged-particle multiplicity in p-Pb collisions at √sNN= 8.16 TeV
(2020) [Journal article]Inclusive J/ψ yields and average transverse momenta in p-Pb collisions at a center-of-mass energy per nucleon pair √sNN=8.16 TeV are measured as a function of the charged-particle pseudorapidity density with ALICE. The J/ψ ... -
J/ψ production as a function of charged-particle pseudorapidity density in p–Pb collisions at √sNN=5.02 TeV
(2018) [Journal article]We report measurements of the inclusive J/ψyield and average transverse momentum as a function of charged-particle pseudorapidity density dNch/dηin p–Pb collisions at √sNN=5.02 TeVwith ALICE at the LHC. The observables are ...