CRA Seminar

Title: Gravitational Wave and Electromagnetic Signals Associated With the Tidal Disruption of White Dwarfs Abstract: I will discuss the gravitational-wave and electromagnetic signals expected to accompany the tidal disruption of a white dwarf by a massive (i.e., “intermediate mass” black hole). Since white dwarfs are very compact, they can only be disrupted outside of the … Continue reading "Special CRA Seminar Michael Eracleous – Penn State 11am-12 noon"

Title: Planets are not Points: Structure Evolution and Dynamical Evolution are Intertwined Abstract: The two subfields of planetary structure evolution and planetary dynamics are two rich and complex fields that have advanced in lockstep, but independently of one another. I will discuss how accounting for minor interior structure evolution of a planet can have a … Continue reading "CRA Seminar: Tiger Lu – Yale UN"

Title: JWST's Little Red Dots: Masters of Disguise in the High-Redshift Universe  This talk will explore the exciting journey to probe several populations of black holes, spanning from the distant to the local Universe. I will focus primarily on the "little red dots" (LRDs), a newly discovered and puzzling population of compact red sources at … Continue reading "CRA Seminar: Fabio Pacucci – Harvard cfa"

Title: Gravitational waves: from black holes to the cosmos Gravitational waves reveal the universe through an entirely unique spectrum, complementary to electromagnetic and neutrino observations. Although the field is young, it has already revolutionized our understanding of black holes and neutron stars, with implications for gravity, stellar and galactic astrophysics, nuclear physics and cosmology. In … Continue reading "CRA Seminar – Maximiliano Isi – Flatiron Inst. NYC"

Title: Galaxy Evolution and the Cosmic Baryon Cycle in 3D Abstract Galaxies are intricately linked to the gas in and around them, making the characterization of gas flows essential for directly constraining star formation, gas flow rates, and feedback processes, as well as for testing modern theories of galaxy evolution. The recent deployment of highly … Continue reading "CRA Seminar – Yuguang Chen UC-Davis"

Title: The anti-aligned spin of GW191109: Glitch Mitigation and its Implications  Abstract: One of the most interesting events in the third LVK observing run was GW191109, which was found to have spins which were confidently anti-aligned with the orbital angular momentum - one of only two such cases which has been released - and high … Continue reading "CRA Seminar – Rhiannon Udall, Caltech"

 Title: Probing neutron star physics via multimessenger astronomy Abstract: In this talk I will review recent work that allowed us to obtain a better understanding of the neutron star equation of state and neutron star properties by use of multimessenger observations of (binary) neutron stars. I will also discuss recent and current efforts of modeling binary neutron … Continue reading "CRA Seminar – Vasilis Paschalidis, U. of Arizona [Host Tamara Bogdanovic]"

Title: Dust Scattering Halo of black hole binary 4U 1630-47 Observed with Chandra and APEX: Using mm and X-ray Imaging to Constrain Source and Molecular Cloud Distances Abstract: Dust scattering halos have been utilized to study spectral variations during eclipses, physical properties and distribution of dust grains in the interstellar medium (ISM), X-ray extinction, and … Continue reading "CRA Seminar – Emrah Kalemci [Host Matthew Liska]"

Title: Thermonuclear X-ray Bursts in the NICER Era Abstract: Thermonuclear X-ray bursts are sudden flashes observed from some low-mass X-ray binaries. Time-resolved spectral analysis and long-term observations have revealed that they occur due to the unstable thermonuclear burning of the accreted matter on the surface of the neutron star. They typically last a few tens of … Continue reading "CRA Seminar – Tolga Guver [Host Matthew Liska]"