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16 papers · 1 filter
Investigating Variability of Quiescent Neutron Stars in the Globular Clusters NGC 6440 and Terzan 5
A. R. Walsh, E. M. Cackett, F. Bernardini
The quiescent spectrum of neutron star low-mass X-ray binaries typically consists of two components - a thermal component associated with emission from the neutron star surface, an…
A dynamical stability study of Kepler Circumbinary Planetary systems with one planet
C. E. Chavez, N. Georgakarakos, S. Prodan +2
To date, 17 circumbinary planets have been discovered. In this paper, we focus our attention on the stability of the Kepler circumbinary planetary systems with only one planet, i.e…
Shell-Shocked: The Interstellar Medium Near Cygnus X-1
P. H. Sell, S. Heinz, E. Richards +6
We conduct a detailed case-study of the interstellar shell near the high-mass X-ray binary, Cygnus X-1. We present new WIYN optical spectroscopic and Chandra X-ray observations of…
Blow-up results for a strongly perturbed semilinear heat equation: Theoretical analysis and numerical method
Van Tien Nguyen, Hatem Zaag
We consider a blow-up solution for a strongly perturbed semilinear heat equation with Sobolev subcritical power nonlinearity. Working in the framework of similarity variables, we f…
Polarimetric and spectroscopic optical observations of the ultra-compact X-ray binary 4U 0614+091
M. C. Baglio, D. Mainetti, P. D'Avanzo +4
Aims: We present a polarimetric and spectroscopic study of the persistent ultra compact X-ray binary 4U 0614+091 aimed at searching for the emission of a relativistic particle jet…
P-MaNGA: Emission Lines Properties - Gas Ionisation and Chemical Abundances from Prototype Observations
F. Belfiore, R. Maiolino, K. Bundy +27
MaNGA (Mapping Nearby Galaxies at Apache Point Observatory) is a SDSS-IV survey that will obtain spatially resolved spectroscopy from 3600 Å to 10300 Å for a representative sample…