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13 papers · 2 filters
Be stars in open clusters. III. A uvby-beta calibration for the astrophysical parameters of Be stars
Juan Fabregat, Jose M. Torrejon
We present an empirical calibration of the uvby-beta photometric system to determine the intrinsic colours and indices and the astrophysical parameters of the underlying star, vali…
A global descriptor of spatial pattern interaction in the galaxy distribution
Martin Kerscher, Maria Jesus Pons-Borderia, Jens Schmalzing +4
We present the function J as a morphological descriptor for point patterns formed by the distribution of galaxies in the Universe. This function was recently introduced in the fiel…
A Multiwavelength Investigation of the Relationship Between 2CG135+1 and LSI+61o 303
M. S. Strickman, M. Tavani, M. J. Coe +5
We present the results of a multiwavelength monitoring campaign targeting the gamma-ray source 2CG 135+1 in an attempt to confirm the association of this object with the radio/Be/X…
Direct URCA process in neutron stars with strong magnetic fields
L. B. Leinson, A. Perez
We calculate the emissivity for the direct URCA process in strongly magnetized, degenerate matter in neutron stars, under -equilibrium. We show that, if the magnetic field is la…
Collective effects in synchrotron radiation from neutron stars
L. B. Leinson, A. Perez
We have considered collective effects in synchrotron radiation from an ultrarelativistic degenerate electron gas in neutron stars with strong magnetic fields. For this pro…
Secondary gravitational anisotropies in open universes
Vicent Quilis, Diego Saez
The applicability of the potential approximation in the case of open universes is tested. Great Attractor-like structures are considered in the test. Previous estimates of the Cosm…