Astronomy

Estimating the Intrinsic Luminosities of Heavily Obscured AGN

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Live Poster Session: Zoom LinkThursday, July 30th 1:15-2:30pm EDT Abstract: X-rays are produced by accreting supermassive black holes at the centers of galaxies; such objects are known as Active Galactic Nuclei (AGN). Through interactions with the accretion disk and surrounding torus of dense material, features are imprinted on the X-ray spectra of AGNs that provide … Read more

Bright Meals for Light Eaters: Analysis and Characterization of Ultraluminous Accreting X-Ray Binaries in the Local Universe

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Live Poster Session: Zoom Link (Live Chat Only)Thursday, July 30th 1:15-2:30pm EDT Abstract: Observations of X-ray radiation from nearby galaxies provide the best opportunities to study the some of the universe’s most extreme environments, neutron stars (NSs) and black holes (BHs) interacting with stars in binary systems in particular. Emission from these X-ray binaries (XRBs) … Read more

Doppler Flips in Protoplanetary & Debris Disks: A Possible Indicator of Hidden Planets

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Live Poster Session: Zoom LinkThursday, July 30th 1:15-2:30pm EDT Abstract: Protoplanetary disks are flattened structures of gas and optically thick dust around young stars (<10 Myr old). Debris disks are older, more evolved disks with optically thin dust levels. Recent work has shown that deviations from Keplerian rotation in the spectral line analysis of protoplanetary … Read more

Resolving Structure in the Debris Disk around HD 206893 with ALMA

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Live Poster Session: Zoom LinkThursday, July 30th 1:15-2:30pm EDT Abstract: Debris disks are tenuous, dusty belts surrounding main sequence stars generated by collisions between planetesimals. HD 206893 is one of only two stars known to host a directly imaged brown dwarf orbiting interior to its debris ring, in this case at a projected separation of … Read more

Investigating ACIS Spectra in Archival Chandra Data

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Live Poster Session: Zoom LinkThursday, July 30th 1:15-2:30pm EDT Abstract: One major source of extragalactic X-rays are X-ray binaries, when a star orbits a compact object – a black hole, neutron star, or white dwarf. As material falls from the star onto the compact object, it loses gravitational potential and heats up enough to emit … Read more