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70 papers · 2 filters
Pulsed, Polarized X-ray Emission from Neutron Star Surfaces: the Effects of Vacuum Birefringence in the Magnetosphere
Hoa Dinh Thi, Matthew G. Baring, Kun Hu +4
Intense magnetic fields in the atmospheres of neutron stars render non-trivial angular dependence of intensity and polarization of soft X-ray emission originating from their surfac…
Double-hump spectrum, pulse profile dip, and pulsed fraction spectra from the low-accretion regime in the X-ray pulsar MAXI J0655-013
C. Malacaria, S. N. Pike, A. D'Aì +18
Accreting X-ray pulsars (XRPs) undergo different physical regimes depending on the mass accretion rate. Recent observations have shown a dramatic change in the emission properties…
Multiwavelength identification of millisecond pulsar candidates in the Galactic bulge
J. Berteaud, F. Calore, M. Clavel +4
The existence of a population of millisecond pulsars in the Galactic bulge is supported, along with other evidence, by the Fermi GeV excess, an anomalous γ-ray emission detected al…
Discovery of two new millisecond pulsars towards the Galactic bulge
J. Berteaud, F. Calore, M. Clavel +13
The mysterious Galactic Center Excess of gamma rays could be explained by a large population of millisecond pulsars hiding in the Galactic bulge, too faint to be detected as indivi…
A one-parameter two-zone leptonic model for the blazar sequence
Stella Boula, Apostolos Mastichiadis, Demosthenes Kazanas
Blazars, a subclass of radio-loud active galactic nuclei with relativistic jets aligned close to our line of sight, emit highly variable non-thermal radiation across the electromag…
A minimalist approach to BL Lacertae: explaining gamma-ray spectral and temporal variability with a single physical parameter
Raniere de Menezes, Francesco Massaro, Elisa Visentin +2
The eponymous BL Lac object BL Lacertae is one of the most well-monitored active galactic nuclei, frequently observed from radio to gamma rays. Its relatively soft -ray spectrum…