We consider a generalized statistical mechanics model for the creation process of cosmic rays which takes into account local temperature fluctuations. This...
Generation of galactic disc warps due to intergalactic accretion flows onto the disc
A new method is developed to calculate the amplitude of the galactic warps generated by a torque due to external forces. This takes into account that the warp...
Generic low-atmosphere signatures of swirled-anemone jets
Context. Solar jets are collimated plasma flows moving along magnetic field lines and are accelerated at low altitude following magnetic reconnection. Several...
Geologic History and Crater Morphology of Asteroid (162173) Ryugu
Crater morphology and surface age of asteroid (162173) Ryugu are characterized using the high-resolution images obtained by the Hayabusa2 spacecraft. Our...
Geometry Diagnostics of a Stellar Flare from Fluorescent X-Rays
We present evidence of Fe fluorescent emission in the Chandra HETGS spectrum of the single G-type giant HR 9024 during a large flare. In analogy to solar X-ray...
Draco C1 is a known symbiotic binary star system composed of a carbon red giant and a hot, compact companion—likely a white dwarf—belonging to the Draco dwarf...
GHαFaS: Galaxy Hα Fabry-Perot System for the William Herschel Telescope
GHαFaS, a new Fabry-Perot system, is now available at the William Herschel Telescope (WHT). It was mounted, for the first time, at the Nasmyth focus of the 4.2...
Giant galaxy growing from recycled gas: ALMA maps the circumgalactic molecular medium of the Spiderweb in [C I]
The circumgalactic medium (CGM) of the massive Spiderweb Galaxy, a conglomerate of merging proto-cluster galaxies at z = 2.2, forms an enriched interface where...
Giant HVC's and the Rotation Curves of the Milky Way and M31
We have modelled, for the cases of Milky Way and M31, the effects on the galactic discs, of the arrival at high velocity (≥150 km s-1) of giant HI clouds, with...