The discovery of the peculiar L dwarf ULAS J222711-004547
We present the discovery of a very peculiar L dwarf from the UKIDSS Large Area Survey (LAS), ULAS J222711-004547. Its very red infrared colours (MKO J-K = 2.79)...
The Disk-bearing Population in the Massive Stars Forming Region Cygnus OB2
Cygnus OB2 is the closest massive star forming region hosting thousand OB stars to the Sun (1450 pc). It represents the best target to study how OB stars affect...
The peculiar variable star V838 Mon underwent an extremely unusual outburst in early 2002. Unlike a classical nova, V838 Mon has remained very cool throughout...
The Distribution of Bar Strengths in Disk Galaxies
The distribution of bar strengths in disk galaxies is of fundamental importance in studies of galaxy evolution for two reasons. First, bars are the most...
The Distribution of Disks in the μ0-log h Plane and the Inclination Correction
A further fundamental modification needs to be made to the Freeman (1970) law, such that not only do LSB galaxies possess fainter central surface brightnesses...
Considering Galaxy spectra as multidimensional vectors, we use the k-means algorithm and the minimum spanning tree to show that the data in the Sloan Digital...
The distribution of galaxy luminosities, stellar and baryonic masses, and galaxy sizes from SDSS and 2MASS SEDs
We use a large sample of galaxies from the Two Micron All Sky Survey (2MASS) and the Sloan Digital Sky Survey (SDSS) to explore the distribution of galaxy...