What Can We Learn on the Structure and the Dynamics of the Solar Core with g Modes?
The detection of the signature of dipole gravity modes has opened the path to study the solar inner radiative zone. Indeed, g modes should be the best probes to...
What Disc Brightness Profiles Can Tell us about Galaxy Evolution
Azimuthally averaged surface brightness profiles of disc galaxies provide a most useful practical classification scheme which gives insights into their...
What do Astrophysics and the World's Oldest Profession have in Common?
In the present paper I want to tell of my impressions about the world of research in astrophysics, which I know from close observation. I see with certain...
Detection of optical surface brightness structures with magnitudes fainter than 30 mag/arcsec2 has remained elusive in current photometric deep surveys. We are...
What do RR Lyrae tell us about the formation of the Milky Way and M31 haloes?
RR Lyrae variables are old (>10 Gyr) stars and, as such, they are useful probes of the earliest events of star formation in galaxies (Bernard et al. 2008...
What do we find when nothing is found? A deep search for planetary nebulae at the outskirts of M33
Planetary nebulae (PNe) are excellent tracers of stellar populations with low surface brightness, and therefore provide a powerful method to detect and explore...
What do we really know about Spiral Galaxy Morphology
stronomers have long learned to classify spirals in terms of their morphological features, primarily their bulges, discs, and bars. In addition other properties...