Nuclear rings are in most cases thought to be by-products of gas shock-focusing at Inner Lindblad Resonances (ILRs). AINUR (Atlas of Images of NUclear Rings) is...
AKARI and Spitzer Observations of Heavily Obscured C-rich AGB/Post-AGB Stars
We present AKARI/IRC and Spitzer/IRS observations of a selected sample of galactic IRAS sources considered to be heavily obscured AGB / post-AGB stars based on...
AKARI/IRC Observations of Heavily Obscured Oxygen-Rich AGB and Post-AGB Stars
We present AKARI/IRC observations of a sample of six extremely red IRAS sources, of which three are variable OH/IR stars and the rest are early post-AGB stars...
Al Comae, Not So Red Afterall; Photometry and Spectroscopy of a Very Faint TOAD.
A red inter-loper has been detected in the vicinity of the faint Tremendous Outburst Amplitude Dwarf (TOAD) AL Comae, with a 3.95 arc-seconds separation between...
The Advanced Large Homogeneous Area Medium Band Redshift Astronomical (ALHAMBRA) survey is a photometric survey designed to study systematically cosmic...
Alicante Survey of Massive Stars in H II regions (A-SMASHER)
The aim of this survey is the homogeneous characterization of a large sample of H II regions with active star formation in order to detect observational trends...
ALICE - a New Code for Simultaneous Radial Velocity and Stellar Activity Measurements
Evolved stars observed within the Penn State - Torun Center for Astronomy Planet Search (PTPS) conducted with the Hobby-Eberly Telescope are supposed to present...