We Can See No Naked Supercritical Accretion Disks

Supercritical Accretion Disks with Superwinds

We construct a model for supercritical accretion disks with winds, where the mass-accretion rate highly exceeds the Eddington rate and a significant fraction of the accreting gas is expelled as a superwind, under a self-similar treatment. The mass-accretion rate Ṁ decreases with radius r as Ṁ ∝ r + 1/2, where s (≥ −1/2) is some arbitrary constant. The surface density Σ and the disk central temp...

Can we see Focus

The purpose of this study was to determine whether the visual modality is useful for the perception of prosody. An audiovisual corpus consisting of four focus conditions (subject, verb, object focus and broad focus) was recorded from a male native speaker of French. A preliminary production study showed that there are visible correlates of contrastive focus in French a) increase in lip area and...

[Can we see pain?].

Pain is a highly subjective experience that is difficult to measure objectively due to its varied expression. It is defined as a complex sensory-emotional experience, it is modulated by cognitive factors and involves a broad neural system. Functional neuroimaging has helped to define that neural circuit involved in the perception, modulation and response to painful experience, both in healthy c...

Why Can We See a Local Spread of Chikungunya Virus (CHIKV) Infection?

Accretion Disks

In this lecture the basic theory of accretion disks is introduced, with emphasis on aspects relevant for X-ray binaries and Cataclysmic Variables.