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19 papers · 1 filter
MOJAVE XII: Acceleration and Collimation of Blazar Jets on Parsec Scales
D. C. Homan, M. L. Lister, Y. Y. Kovalev +5
We report on the acceleration properties of 329 features in 95 blazar jets from the MOJAVE VLBA program. Nearly half the features and three-quarters of the jets show significant ch…
Opacities and spectra of hydrogen atmospheres of moderately magnetized neutron stars
A. Y. Potekhin, G. Chabrier, W. C. G. Ho
There is observational evidence that central compact objects (CCOs) in supernova remnants have moderately strong magnetic fields G. Meanwhile, available models of pa…
First broadband characterization and redshift determination of the VHE blazar MAGIC J2001+439
MAGIC Collaboration, J. Aleksić, S. Ansoldi +167
We aim to characterize the broadband emission from 2FGL J2001.1+4352, which has been associated with the unknown-redshift blazar MG4 J200112+4352. Based on its gamma-ray spectral p…
The connection between the parsec-scale radio jet and gamma-ray flares in the blazar 1156+295
Venkatessh Ramakrishnan, Jonathan León-Tavares, Elizaveta A. Rastorgueva-Foi +30
The blazar 1156+295 was active at gamma-ray energies, exhibiting three prominent flares during the year 2010. Here, we present results using the combination of broadband (X-ray thr…
A new look at the origin of the 6.67\,hr period X-ray pulsar 1E~161348-5055
N. R. Ikhsanov, V. Y. Kim, N. G. Beskrovnaya +1
The point X-ray source 1E 161348-5055 is observed to display pulsations with the period 6.67 hr and |\dot{P}| \leq 1.6 x 10^{-9} s/s. It is associated with the supernova remnant RC…
On the spin-down mechanism of the X-ray pulsar 4U 2206+54
N. R. Ikhsanov, N. G. Beskrovnaya
Observations of the X-ray pulsar 4U 2206+54, performed over a 15-year span, show its period, which is now 5555 \pm 9 s, to increase drastically. Such behavior of the pulsar can be…