News
Three supernova shells around a young star cluster in M33
Using a specialized technique sensitive to the presence of expanding ionized gas, we have detected a set of three concentric expanding shells in an H ii region...
-
-
NewsTidally trapped pulsations in a close binary star systemIt has long been suspected that tidal forces in close binary stars could modify the orientation of the pulsation axis of the constituent stars. Such stars have...
-
NewsTrES-2In August 2006 a new planetary transit was discovered from data from the TrES network. The discovery was confirmed using radial velocity curves obtained with...
-
NewsType-II surface brightness profiles in edge-on galaxies produced by flaresPrevious numerical studies had apparently ruled out the possibility that flares in galaxy discs could give rise to the apparent breaks in their luminosity...
-
NewsUbiquitous yet forgotten: Broad absorptions in the optical spectra of low-mass X-ray binariesLow-mass X-ray binaries are systems in which a star transfers matter onto a compact object—either a black hole or a neutron star—producing energetic outbursts...
-
NewsUnnoticed magnetic field oscillations in the very quiet Sun revealed by Sunrise/IMaX.As we enhance the spatial resolution and sensitivity of spectro-polarimetric measurements, it becomes increasingly evident that highly dynamic magnetic fields...
-
NewsUnravelling coronal bright pointsWhen the Sun is observed in X-ray or extreme ultraviolet wavelengths, hundreds of bright and compact structures with a rounded shape and sizes similar to that...
-
NewsUnveiling the companion of Aquila X-1 40 years after its discoveryLow mass X-ray binaries consist of two components: a compact object (either a neutron star or a stellar-mass black hole) and a star with a mass similar or lower...
-
NewsVariability in the Orion nebulaUsing images from the HST archive of the Ha and [OIII] l5007A emission lines that are 6.84 years apart, variability in the temperature and density of ionized...