How to identify the youngest protostarsStamatellosD.WhitworthA.P.BoydD.F.A.GoodwiningentaconnectAstronomy & Astrophysics Berlin
We consider the effects of an outflow on radiation escaping from the infalling envelope around a massive protostar. Using numerical radiative transfer calculations, we show that outflows with properties comparable to those observed around massive stars l
–Hubble’s law: Why are most galaxies moving away from us? –How black holes and galaxies play tug-of-war across the cosmos As the gas collapsed and its density increased, some stars formed very early on, before the gas had stabilised into a rotating disc. These early stars form the ...
The EAO JCMT/Transient Survey:How do stars grow? Most protostars have luminosities that are significantly fainter than expected from steady accretion over the protostellar lifetime.The solution to this problem may lie in episodic mass accretion--prolonged periods of very low accretion ... 沈雷歌 ...
protosun's interior. When this happened, the energy released by these reactions stopped the contraction, and a large amount of light energy was radiated into space. The protosun had become a star. Nuclear reactions continue to the present day in the interior of the Sun and are the source ...
Double-strand breaks (DBSs) are formed at leptonema, repaired in zygonema, resulting in crossovers (COs) in pachynema. Two meiotic checkpoints are activated in this stage: (i) response to unrepaired DSBs; and (ii) MSUC (meiotic silencing of unsynapsed chromatin) and MSCI (meiotic sex ...
Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards. - donnemartin/system-design-primer
Some astronomers have suggested that a separate planet or protoplanet actually formed between the two planets, but the impact of a high-speed comet broke up and scattered the newly formed body to create what we now know as the main or original asteroid belt. While it's possible that comets...
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As is depicted in Figure 3, we can model such a neuron by setting the temporal encoder 𝑒𝑖(𝑡)ei(t) to a prototypical downwards-moving pattern. Figure 3. Model of a neuron in visual cortex tuned to downwards motion. The spatiotemporal encoder e is a two-dimensional Gabor filter ...