Constraints to the mass loss rate of globular cluster red giants
The expected mass loss rates from horizontal branch (HB) and red giant branch models are investigated. The expected dependence of those rates on luminosity...
Constraints to the masses of brown dwarf candidates form the lithium test
We present intermediate dispersion (0.7-2.2 A/pixel) optical spectroscopic observations aimed at applying the 'lithium test' to a sample of 10 brown dwarf...
Construction of coronal hole and active region magnetohydrostatic solutions in two dimensions: Force and energy balance
Coronal holes and active regions are typical magnetic structures found in the solar atmosphere. We propose several magnetohydrostatic equilibrium solutions that...
Contemporaneous observations of the radio galaxy NGC 1275 from radio to very high energy γ-rays
Aims: The radio galaxy NGC 1275, recently identified as a very high energy (VHE, >100 GeV) γ-ray emitter by MAGIC, is one of the few non-blazar active galactic...
Continuous Spectrum of Taurus A at 1.2 mm Wavelength
WE have measured the radiation from the region of the Crab nebula (Taurus A) in a waveband centred at 1.2 mm (250 GHz) in the far infrared. Our equipment was an...
Continuous tracking of volcanic tremor at Mount Etna, Italy
Using data from two dense array of short period seismometers, we analyse the kinematic properties of volcanic tremor preceding and accompanying the 2004-2005...
Continuum Intensity and [O I] Spectral Line Profiles in Solar 3D Photospheric Models: The Effect of Magnetic Fields
The importance of magnetic fields in three-dimensional (3D) magnetoconvection models of the Sun’s photosphere is investigated in terms of their influence on the...
Contrails developed under frontal influences of the North Atlantic
Satellite imagery reveals a visually striking pattern of persistent line-shaped contrails located to the Northwest of the British Isles on 1 September 2007...