Twinkle little stars: Massive stars are quenched in strong magnetic fields
The role of the magnetic fields in the formation and quenching of stars with different mass is unknown. We studied the energy balance and the star formation...
Two Extremely Compact Starbursts Inhabiting Clusters of Galaxies: Abell 539 and Abell 634
Two extremely compact Hα-emitting sources have been discovered in our deep images of the Abell 539 and Abell 634 clusters of galaxies. Follow-up spectroscopy of...
Two Groups of Red Giants with Distinct Chemical Abundances in the Bulge Globular Cluster NGC 6553 Through the Eyes of APOGEE
Multiple populations revealed in globular clusters (GCs) are important windows to the formation and evolution of these stellar systems. The metal-rich GCs in...
Two high-velocity encounters of elliptical galaxies
This paper describes results obtained on a simulation of two high-velocity encounters of NGC 4782/4783 and NGC 2672/2673 binary elliptical galaxies which differ...
We report the discovery of two new field variable stars based on CCD observations carried out between October and December, 2000. Using multicolour photometry...