Cosmic rays comprise only about one billionth of interstellar
particles in the Milky Way, but have as much energy as the thermal
gas. Low energy cosmic rays affect the chemistry and thermodynamics
of interstellar through collisional processes...
Richard Schwartz, Member (2003–04) in the School of Mathematics and
the Chancellor’s Professor of Mathematics at Brown University, will
talk about really large numbers, as well as the different sizes of
infinity and the different forms of infinite...
Recent results from Kepler and ground-based exoplanet surveys
suggest that low-mass stars are host to numerous small planets.
Since low-mass stars are intrinsically faint at optical
wavelengths, obtaining the Doppler precision necessary to detect...
https://www.ias.edu/sns/~baldauf/Bias/program.html
The interpretation of low-redshift galaxy surveys is more
complicated than the interpretation of CMB temperature
anisotropies. First, the matter distribution evolves nonlinearly at
low redshift...
Galaxy formation is a complex, hierarchical, highly non-linear
process, which involves gravitational collapse of dark matter and
baryons, supersonic, highly compressible and turbulent flows of
gas, star formation, stellar feedback, as well as...
In this lecture, Tegmark surveys how humans have repeatedly
underestimated not only the size of the cosmos, but also the power
of the human mind to understand it using mathematical equations. He
explores how mathematics in physics has allowed us to...
Jo Bovy, John N. Bahcall Fellow in the School of Natural Sciences,
talks about stars, planets, and gases that make up galaxies, the
dark matter that holds them together, and the history of our own
Milky Way galaxy in this talk geared for children...
The last decades have seen great advances in our understanding of
the history of our universe. I will summarize our current
knowledge, describe some of the puzzles that still remain and
speculate about future developments in cosmology. Matias...