Search Publications
Dynamics and clouds in planetary atmospheres from telescopic observations
Sánchez-Lavega, Agustín; Irwin, Patrick; García Muñoz, Antonio
This review presents an insight into our current knowledge of the atmospheres of the planets Venus, Mars, Jupiter, Saturn, Uranus and Neptune, the satellite Titan, and those of exoplanets. It deals with the thermal structure, aerosol properties (hazes and clouds, dust in the case of Mars), chemical composition, global winds, and selected dynamical…
Ram pressure stripping in high-density environments
Fossati, Matteo; Sun, Ming; Boselli, Alessandro
Galaxies living in rich environments are suffering different perturbations able to drastically affect their evolution. Among these, ram pressure stripping, i.e. the pressure exerted by the hot and dense intracluster medium (ICM) on galaxies moving at high velocity within the cluster gravitational potential well, is a key process able to remove the…
Star formation and nuclear activity in luminous infrared galaxies: an infrared through radio review
Aalto, Susanne; Alonso-Herrero, Almudena; Mattila, Seppo +2 more
Nearby galaxies offer unique laboratories allowing multi-wavelength spatially resolved studies of the interstellar medium, star formation and nuclear activity across a broad range of physical conditions. In particular, detailed studies of individual local luminous infrared galaxies (LIRGs) are crucial for gaining a better understanding of these pr…
Cool outflows in galaxies and their implications
Maiolino, Roberto; Bolatto, Alberto D.; Veilleux, Sylvain +1 more
Neutral-atomic and molecular outflows are a common occurrence in galaxies, near and far. They operate over the full extent of their galaxy hosts, from the innermost regions of galactic nuclei to the outermost reaches of galaxy halos. They carry a substantial amount of material that would otherwise have been used to form new stars. These cool outfl…
Cluster-galaxy weak lensing
Umetsu, Keiichi
Weak gravitational lensing of background galaxies provides a direct probe of the projected matter distribution in and around galaxy clusters. Here, we present a self-contained pedagogical review of cluster-galaxy weak lensing, covering a range of topics relevant to its cosmological and astrophysical applications. We begin by reviewing the theoreti…
What is a globular cluster? An observational perspective
D'Orazi, Valentina; Gratton, Raffaele; Bragaglia, Angela +3 more
Globular clusters are large and dense agglomerate of stars. At variance with smaller clusters of stars, they exhibit signs of some chemical evolution. At least for this reason, they are intermediate between open clusters and massive objects such as nuclear clusters or compact galaxies. While some facts are well established, the increasing amount o…
The realm of the galaxy protoclusters. A review
Overzier, Roderik A.
The study of galaxy protoclusters is beginning to fill in unknown details of the important phase of the assembly of clusters and cluster galaxies. This review describes the current status of this field and highlights promising recent findings related to galaxy formation in the densest regions of the early universe. We discuss the main search techn…
The faint radio sky: radio astronomy becomes mainstream
Padovani, Paolo
Radio astronomy has changed. For years it studied relatively rare sources, which emit mostly non-thermal radiation across the entire electromagnetic spectrum, I.e. radio quasars and radio galaxies. Now, it is reaching such faint flux densities that it detects mainly star-forming galaxies and the more common radio-quiet active galactic nuclei. Thes…
Radio AGN in the local universe: unification, triggering and evolution
Tadhunter, Clive
Associated with one of the most important forms of active galactic nucleus (AGN) feedback, and showing a strong preference for giant elliptical host galaxies, radio AGN (L_{1.4 GHz} > 10^{24} W Hz^{-1}) are a key sub-class of the overall AGN population. Recently their study has benefitted dramatically from the availability of high-quality data …
GG Tau: the ringworld and beyond. Mass accretion and planetary formation in young multiple stellar systems
Dutrey, Anne; Di Folco, Emmanuel; Beck, Tracy +1 more
In binary stellar systems, exoplanet searches have revealed planetary mass companions orbiting both in circumstellar and in circumbinary orbits. Modelling studies suggest increased dynamical complexity around the young stars that form such systems. Circumstellar and circumbinary disks likely exhibit different physical conditions for planet formati…