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Discovery of four gravitational lensing systems by clusters in the SDSS DR6
Zhong-Lue Wen, Jin-Lin Han, Xiang-Yang Xu +4
We report the discovery of 4 strong gravitational lensing systems by visual inspections of the Sloan Digital Sky Survey images of galaxy clusters in Data Release 6 (SDSS DR6). Two…
An Eccentric Binary Millisecond Pulsar in the Galactic Plane
D. J. Champion, S. M. Ransom, P. Lazarus +28
Binary pulsar systems are superb probes of stellar and binary evolution and the physics of extreme environments. In a survey with the Arecibo telescope, we have found PSR J1903+032…
Magnetic fields of our Galaxy on large and small scales
Jinlin Han
Magnetic fields have been observed on all scales in our Galaxy, from AU to kpc. With pulsar dispersion measures and rotation measures, we can directly measure the magnetic fields i…
The non-constant slope of the CIV Baldwin effect in NGC 4151
M. Z. Kong, Xue-Bing Wu, R. Wang +2
The relationship between the emission-line equivalent width and the continuum luminosity, so called the Baldwin effect, plays an important role in studying the physics of the broad…
Magnetic fields in our Galaxy: How much do we know? III. Progress in the last decade
J. L. Han
A decade ago, there was very limited knowledge of magnetic fields of our Galaxy. The local fields in the Solar vicinity were known to be directed towards a Galactic longitude $l\si…
Circular Polarization in Pulsar Integrated Profiles: Updates
X. P. You, J. L. Han
We update the systematic studies of circular polarization in integrated pulse profiles by Han et al (1998). Data of circular polarization profiles are compiled. Sense reversals can…