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New Stellar Streams Confirm ‘Melting Pot’History of the Galaxy（图）
New Stellar Streams Melting Pot History of the Galaxy
2018/1/31
Where do the stars in our Galaxy come from? All the stars we see in the night-time sky belong to our Milky Way galaxy, and while most stars were likely born here, in the Milky Way, many appear to have...
Linearized flavor-stability analysis of dense neutrino streams
Linearized flavor-stability analysis dense neutrino streams
2011/10/18
Neutrino-neutrino interactions in dense neutrino streams, like those emitted by a core-collapse supernova, can lead to self-induced neutrino flavor conversions. While this is a nonlinear phenomenon, t...
Black Hole growth and AGN obscuration by instability-driven inflows in high-redshift disk galaxies fed by cold streams
instability-driven inflows high-redshift disk galaxies cold streams
2011/9/29
Disk galaxies at high redshift have been predicted to maintain high gas surface densities due to continuous feeding by intense cold streams leading to violent gravitational instability, transient feat...
The Small Covering Factor of Cold Accretion Streams
cosmology theory { galaxies formation and evolution high-redshift radiative transfer
2010/11/11
Theoretical models of galaxy formation predict that galaxies acquire most of their baryons via cold mode accretion. Observations of high-redshift galaxies, while nding strong evidence for ubiquitous ...
We present a brief history of Galactic astrophysics, and explain the origin of halo substructure in the Galaxy. We motivate our study of tidal streams by highlighting the tight constraints that analys...
The unusually long quiet period of the Sun’s present activity may be due to the motion of “sluggish” jet streams beneath the solar surface, according to scientists at the National Solar Observatory (N...
Eta Carinae：Bullet Streams and Colliding Wind Shocks。