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- Centre National de la Recherche ScientifiqueFR463 papers
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57 papers · 1 filter
Evolving Lorentzian wormholes supported by phantom matter and cosmological constant
Mauricio Cataldo, Sergio del Campo, Paul Minning +1
In this paper we study the possibility of sustaining an evolving wormhole via exotic matter made of phantom energy in the presence of a cosmological constant. We derive analytical…
The Frequency of Warm Debris Disks and Transition Disks in a Complete Sample of Intermediate-Mass GLIMPSE Stars: Placing Constraints on Disk Lifetimes
B. Uzpen, H. A. Kobulnicky, K. Kinemuchi
The incidence of dusty debris disks around low- and intermediate-mass stars has been investigated numerous times in order to understand the early stages of planet formation. Most n…
A survey on Cox rings
Antonio Laface, Mauricio Velasco
We survey the construction of the Cox ring of an algebraic variety X and study the birational geometry of X when its Cox ring is finitely generated.
Un metodo adaptativo para el modelo Bidominio en electrocardiologia
Mostafa Bendahmane, Raimund Bürger, Ricardo Ruiz Baier
This paper presents a finite-volume method, together with fully adaptive multi-resolution scheme to obtain spatial adaptation, and a Runge-Kutta-Fehlberg scheme with a local time-v…
A likely optical counterpart of the G292.0+1.8 pulsar wind nebula
S. V. Zharikov, Yu. A. Shibanov, D. A. Zyuzin +2
G292.0+1.8 is the Cas A-like supernova remnant containing the young pulsar PSR J1124-5916, which powers a compact torus-like pulsar wind nebula with a jet visible in X-rays. We hav…
A search for spectroscopic binaries in the galactic globular cluster M4. Based on 5973 individual spectra collected at VLT
V. Sommariva, G. Piotto, M. Rejkuba +4
We present a large multi-epoch high resolution spectroscopic investigation for the search of binary candidates in the Galactic Globular Cluster (GGC) M4. The aim of our work is the…