A Planetary-Mass Companion to the K0 Giant HD 17092
We report the discovery of a substellar-mass companion to the K0 giant HD 17092 with the Hobby-Eberly Telescope. In the absence of any correlation of the...
A planetesimal orbiting within the debris disc around a white dwarf star
Many white dwarf stars show signs of having accreted smaller bodies, implying that they may host planetary systems. A small number of these systems contain...
A plausible link between dynamically unsettled molecular gas and the radio jet in NGC 6328
We report the detection of outflowing molecular gas at the center of the nearby radio galaxy NGC6328 (z = 0.014), which has a gigahertz-peaked spectrum radio...
A Pluto-like radius and a high albedo for the dwarf planet Eris from an occultation
The dwarf planet Eris is a trans-Neptunian object with an orbital eccentricity of 0.44, an inclination of 44 degrees and a surface composition very similar to...
A polarization model for the German Vacuum Tower Telescope from in situ and laboratory measurements
It is essential to properly calibrate the polarimetric properties of telescopes, if one wants to take advantage of the capabilities of high precision spectro...
A very rapid swing in the polarization position angle (PA) in the optical region was observed in blazar OJ 287 during one night of our five nights UBVRI...
A polarized fast radio burst at low Galactic latitude
We report on the discovery of a new fast radio burst (FRB), FRB 150215, with the Parkes radio telescope on 2015 February 15. The burst was detected in real time...
A Possible Alignment Between the Orbits of Planetary Systems and their Visual Binary Companions
Astronomers do not have a complete picture of the effects of wide-binary companions (semimajor axes greater than 100 au) on the formation and evolution of...