"The Path to Detecting Molecular Oxygen in Exoplanets"
We are just at the doorsteps of discovering the first potentially earth-like planet. Once discovered, those planets will immediately become the focus of detailed atmospheric characterization. Molecules such as H2O, CH4, CO, or CO2 will be best searched for from space. Molecules such as O2 and O3, on the other hand, will be harder to detect. This talk will highlight ongoing and future work centered around optimizing the search for O2 in earth-like planets around nearby stars using high-resolution, doppler velocity...
Dwarf galaxies are extremely diverse in their morphology, from rotationally-supported star-forming disks to gas-free spheroidal stellar systems with no star-formation and negligible rotation. They are also believed to be the most dark matter dominated objects within the Lambda Cold Dark Matter (LCDM) model and, as such, they pose the most significant challenges to our cosmological scenario. LCDM galaxy formation models make two clear predictions: i) galaxy formation should become increasingly inefficient in lower mass halos,... Read more about ITC Special Seminar - Laura Sales (UC Riverside)
"Enhancements and Improved Tests of Relativity with Multi-band GW Observations "
Abstract: As LIGO continues its third observing run, the added gravitational wave (GW) events provide the promise of further tests of general relativity (GR). In the future the early inspiral of a select number of stellar mass black-hole binaries, like GW150914, will be detectable at low frequencies (10-100 mHz) by the upcoming LISA space mission. Multi-band GW astronomy is a promising avenue for improved tests of GR, both in the weak-field regime and its propagation, constraints on eccentricity...
"Particle Physics & Astrophysics with Wide Field mm-Wave Surveys"
Abstract: There have now been several generations of wide-field mm-wave surveys, with several ongoing and upcoming very ambitious projects. We have already learned a great deal about the early universe and put strong constraints on particle physics extensions to the standard model, also collecting large catalogs of strong gravitational lens systems and massive clusters of galaxies, and learning a great deal about the growth of large scale structure in the universe. Ongoing and future experiments will...
Challenges in Characterizing Extra Solar Atmospheres at High-Resolution
The field of exoplanet characterization has matured to the point where we can begin to answer fundamental questions regarding planetary climate, composition, and formation, and also provide context for understanding our own solar system planets. The community has leveraged the power of numerous ground-and space-based observatories to find and characterize a diverse range of planets ranging from hot Jupiter’s to terrestrial-sized, potentially habitable worlds. Much of the successful... Read more about ITC Colloquium - Mike Line (ASU)
Galaxy formation simulations: "sub-grid" vs. physics
Cosmological simulations of structure formation have undergone rapid development over the last decade and evolved from purely gravitational computations of large scale structure to full hydrodynamical simulations which include a plethora of complex baryonic physics. Recent successes of these simulations have been impressive, with several independent groups obtaining models of present day galaxies with a morphological mix in broad accord with observation, which has been a long standing goal for more...