Fuzzy Dark Matter (FDM), consisting of ultralight bosons, is an
intriguing alternative to Cold Dark Matter (CDM). Unlike in CDM,
FDM halos consist of a central solitonic core, surrounded by an
envelope of order unity density fluctuations. The...
In this talk I will discuss two undetected populations of black
holes. In the faraway Universe, the first lensed z > 6 quasar
(J0439+1634) was recently discovered. We predicted that the
observed population of quasars should contain many mildly...
In multicellular organisms, properly programmed collective
motion is required to form tissues and organs, and this programming
breaks down in diseases like cancer. Recent experimental work
highlights that some organisms tune the global mechanical...
The interstellar medium and stellar feedback are closely tied to
the origin and evolution of galaxies. Low-frequency (<1 GHz)
radio recombination lines (RRLs) provide insight into the physical
properties and impact of these processes. In this talk I will (i)
first focus on the Cygnus X star-forming in our Galaxy, what we
glean about diffuse ionized gas and the cold neutral medium, and
(ii) how we might establish RRLs as probes of these diffuse media
out to high redshift.
The Transiting Exoplanet Survey Satellite (TESS) is proceeding
with its mission of discovering small planets transiting bright
stars. TESS is able to determine the mass of these host stars and
hence bulk and atmospheric characterization of the...
The spatial clustering of distant galaxies is a powerful
cosmological probe. As the leading example of Big Data in
astrophysics, the Vera C. Rubin Observatory Legacy Survey of Space
and Time (LSST) will produce over 50 petabytes of images,
yielding...
For two decades, the international Gemini Observatory has
powered astronomical discovery for the entire U.S. community and
the international Gemini partnership. Gemini’s twin 8.1m
optical/infrared telescopes provide nightly access to both...
Low-frequency Alfvénic turbulence is a leading candidate to
explain the heating of the solar corona and launching of the fast
solar wind. A sufficiently energetic source of such motions is
observed near the coronal base and in-situ measurements...
