In the context of the unified model of Seyfert galaxies, we use observations from the literature and a radiative transfer model to investigate the near–IR to mm emission produced by the presumed torus in the Circinus galaxy, from 2μm to 1.3mm. From the infrared SED modelling, we find that the total luminosity (LIR) in this wavelength range, consists of similar contributions from the torus and s...

The gravitational-wave spectrum emitted by a non-axisymmetric torus rotating at an angular velocity ΩT , is derived in terms of a structure function representing a combination of sausage-tilt modes in the torus in the limit of an incompressible fluid. The analysis of the gravitational-wave spectrum is then applied to a model proposed recently, in which a highly magnetized torus interacts with a...

Aims. We measure the mass and kinematics of the massive molecular torus in the planetary nebula NGC 6302. The nebula is the proto-typical butterfly nebula. The origin of the wing-like morphology is disputed: determining the mass-loss history of the confining torus is an important step in understanding the formation of this structure. Methods. We performed submillimeter observations with JCMT an...

Oral tori are an enlargement of the osseous tissue in different parts of the upper and lower maxillaries. Oral tori were studied in a Spanish sample of 278 university students, from both sexes, and age between 18 and 39 years. Presence or absence and morphological variability (analysis of their location, degree of development, form, and symmetry) of the oral tori were the topics of this researc...

The dust clouds in the torus of the quasar are irradiated by the central source, and the clouds at the inner radius of the torus re-radiate mostly in the near-infrared (NIR) wavebands. The ratio of the near-infrared luminosity to the bolometric luminosity LNIR/Lbol can therefore reflect the torus geometry to some extent. We find a significant correlation between the ratio of the near-infrared l...