Astrophysics

The South Pole Telescope (SPT) has uncovered a population of high-redshift strongly gravitationally lensed starburst galaxies in a 2500 square degree cosmological survey. We have conducted the first ALMA spectroscopic survey for a complete sample of...

Abstract: The character of cosmological survey data is rapidly becoming unlike the measurements of the past 20 years. The spatial extent of near-future datasets is such that multi-wavelength information from thousands of square degrees of...

Some wave-driven models of coronal heating hypothesize that interactions between Alfvenic waves and density fluctuations enhance the rate of turbulent dissipation and thereby increase the efficiency of Alfvenic wave heating. Such interactions may...

Quasars - accreting super-massive black holes - are the most luminous non-transient sources known and can be seen at redshifts of z > 7, when the Universe was just ~5% of its current age.  This implies that black holes with masses of up to ~10^9 M...

The Bahcall Lunch follow the astrophysics colloquium lecture. Registration is required by noon the previous Thursday so a meal can be provided.

Cosmology is undergoing a data revolution. Surveys such as the imminent Legacy Survey of Space and Time (LSST) to be conducted by the Vera C. Rubin Observatory will deliver huge galaxy catalogues that provide critical tools for understanding the...

In the last few decades, statistical analysis of cosmic microwave background (CMB) temperature fluctuations has established the standard model of cosmology with high precision. The next frontier lies in measuring the spectral shape of the CMB and...

Abstract: In his celebrated proof of the weak cosmic censorship conjecture for the spherically symmetric Einstein-scalar field system, Christodoulou exploited the following property of that specific matter model: Naked singularities, when they arise...