153 citations
- Centre National de la Recherche ScientifiqueFR24 papers
- Istanbul UniversityTR23 papers
- CEA Paris-SaclayFR21 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR21 papers
- California Institute of TechnologyUS20 papers
- Université Paris-SaclayFR20 papers
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7 papers · 1 filter
CCD UBV(RI)KC Photometry of the Open Clusters Juchert 9 and Berkeley 97
İnci Akkaya Oralhan, Raúl Michel, Yonca Karslı +3
The CCD UBV(RI)KC photometry of the poorly studied open clusters Juchert 9 (Juc 9) and Berkeley 97 (Be 97), which are observed with the 0.84 m telescope at the San Pedro Mártir Nat…
Phase diagrams and critical behaviours of the mixed spin-5/2 and spin-7/2 Ising system
M. Karimou, R. A. Yessoufou, G. Dimitri Ngantso +2
We used mean-field theory based on the Bogoliubov inequality for the Gibbs free energy to examine the magnetic properties of a mixed spin-5/2 and spin-7/2 Blume-Capel ferrimagnetic…
UBVRI-KC Photometry of NGC~2323 and NGC~2539 Open Clusters
Inci Akkaya Oralhan, Raul Michel, William J. Schuster +3
The open clusters NGC 2323 and NGC 2539 have been analysed using CCD UBV(RI)KC photometric data, observed at the San Pedro Martir Observatory. Cluster memberships have been determi…
The Performance Of Convolutional Coding Based Cooperative Communication: Relay Position And Power Allocation Analysis
Cebrail Çiflikli, Waeal Al-Obaidi, Musaab Al-Obaidi
Wireless communication faces adversities due to noise, fading, and path loss. Multiple-Input Multiple-Output (MIMO) systems are used to overcome individual fading effect by employi…
Variability of Low-ionization Broad Absorption Line Quasars Based on Multi-epoch Spectra from The Sloan Digital Sky Survey
Weimin. Yi, W. N. Brandt, P. B. Hall +5
We present absorption variability results for 134 bona fide \mgii\ broad absorption line (BAL) quasars at 0.46~~2.3 covering days to 10 yr in the rest f…
A tidal tale: detection of multiple stellar streams in the environment of NGC1052
Oliver Müller, R. Michael Rich, Javier Román +6
The possible existence of two dark matter free galaxies (NGC1052-DF2 and NGC1052-DF4) in the field of the early-type galaxy NGC1052 presents a challenge to theories of dwarf galaxy…