A large fraction of planetary nebulae (about 80%) are bipolar or elliptical rather than spherically symmetric. Modern theories invoke magnetic fields, among other causes, to explain the rich variety of aspherical components observed in planetary nebulae (PNe), as ejected matter is trapped along magnetic field lines. But, until recently, this idea was mostly a theoretical claim. But in 2005, Jordan et al. report the detection of kG magnetic fields in the central star of two non-spherical PNe, namely NGC1360 and LSS1362. They observed the circular polarization spectra of these stars with the

The proper characterization of the least massive population of the young Sigma Orionis star cluster is required to understand the form of the cluster mass function and its impact on our comprehension of the substellar formation processes. S Ori 70 (T5.5+/-1) and 73, two T-type cluster member candidates, are likely to have masses between 3 and 7 MJup if their age is 3 Myr. It awaits confirmation whether S Ori 73 has a methane atmosphere. We aim to: i) confirm the presence of methane absorption in S Ori 73 by performing methane imaging; ii) study S Ori 70 and 73 cluster membership via

The Kepler spacecraft is monitoring the brightness of more than 150,000 stars  in the constellations Cygnus, Lyra,  and Draco. The photometric time series with micromagnitude precision are excellent for the study of stellar oscillations. The oscillations lead to small changes in brightness and are caused by waves trapped inside the stars. The field of asteroseismology uses information from the stellar oscillations to infer information from the stellar internal structure. The delta Scuti and gamma Doradus stars are two classes of oscillating stars of spectral type A and F that are slightly

El hallazgo, que cuenta con la participación del IAC, sugiere que hay más agua de la que se pensaba en la región interna del Sistema Solar y aporta nuevas evidencias a la teoría que postula que el agua llegó a la Tierra a través del impacto de asteroides y cometas.

Un equipo, con participación del Instituto de Astrofísica de Canarias (IAC) ha descubierto, por casualidad, una docena de sistemas estelares binarios con peculiaridades jamás vistas.

Este espectáculo único será retransmitido en directo, con la participación del IAC, a travésde la página web www.eclipsesolar.es