2017 - 2018 Astro Seminar Schedule

DateEvent TypeSpeakerTitle
09/08/2017Astro SeminarMarcel SchmittfullFundamental physics from the nonlinear Universe [ + Description ]
09/15/2017Astro SeminarNicholas BattagliaLarge-Scale Structure Information Encoded in CMB Photons [ + Description ]
09/22/2017Astro SeminarVivian PoulinCosmological signatures of exotic electromagnetic energy injection [ + Description ]
09/29/2017Astro SeminarTjitske StarkenburgThe diverse history of counterrotating galaxies [ + Description ]
10/06/2017Astro SeminarMansi KasliwalThe Dynamic Infrared Sky [ + Description ]
10/20/2017Astro SeminarJulie ComerfordAGN Fueling and Feedback in Galaxies [ + Description ]
10/27/2017Astro SeminarRenee HlozekNew cosmology with small-scale CMB data: ultra light dark matter, isocurvature and cosmic voids [ + Description ]
11/03/2017Astro SeminarJames PeeblesA Tale of Two Theories: Missing Mass in 1980 and Galaxy Formation Today [ + Description ]
11/10/2017Astro SeminarMatias ZaldarriagaThe spin of the black holes detected by LIGO [ + Description ]
11/17/2017Astro SeminarSarah PearsonThe Milky Way’s Galactic bar can punch holes in stellar streams [ + Description ]
12/01/2017Astro SeminarVera GluscevicDark matter: Searches in the lab and the sky [ + Description ]
01/17/2018Astro Seminar [ + Description ]
01/17/2018Astro SeminarOlivier DelignyTowards locating the ultra-high energy cosmic ray accelerators [ + Description ]
01/23/2018Astro SeminarMarilena LoverdeNeutrinos, Quintessence and Structure Formation in the Universe [ + Description ]
01/30/2018Astro SeminarJennifer BarnesWelcome to the multi-messenger era: a report on the first binary neutron star merger detection [ + Description ]
02/06/2018Astro SeminarPhil ArmitageTidal disruption at home and abroad [ + Description ]
02/13/2018Astro SeminarRyan FoleyDiscovery of the First Electromagnetic Counterpart to a Gravitational Wave Source [ + Description ]
02/20/2018Astro SeminarViviana AcquavivaUnderstanding the Universe through distant galaxies [ + Description ]
02/27/2018Astro SeminarChiara MingarelliInsights into Supermassive Black Hole Mergers, Stalling and Demographics with Pulsar Timing Arrays [ -- Description ]

Description: Galaxy mergers are a standard aspect of galaxy formation and evolution, and likely all large galaxies contain central supermassive black holes (SMBH). Here I discuss a new bottom-up approach to identifying continuous nanohertz gravitational wave (GW) host galaxies by using massive elliptical galaxies in the 2 Micron All Sky Survey, assessing the likelihood of detecting one of these sources with Pulsar Timing Arrays (PTAs), their contribution to the GW background and its anisotropy, and report on the characteristics of the most detected SMBH binaries and host galaxies. We find that out to 225 Mpc there are on average 91 sources emitting GWs in the PTA band and 7 stalled binaries. The chance of detecting these GW sources with current PTA data is <1%, however in the next 10 years PTAs probe a region of the parameter space rich in sources, making a 3-sigma (or better) detection likely, depending on the source position of the sky and the ability to subtract the GW background. (2:00 PM, 726 Broadway, 940, CCPP Seminar)
03/06/2018Astro SeminarChang FengMeasuring the Universe at microwave, infrared and gamma-ray wavelengths [ + Description ]
03/13/2018Astro SeminarNo Astro Seminar (spring break) [ + Description ]
03/20/2018Astro SeminarLina NecibEmpirical Determination of the Dark Matter Velocity Distribution [ + Description ]
03/27/2018Astro SeminarJackie FahertyBrown Dwarfs Reveal Exoplanet Secrets [ + Description ]
04/03/2018Astro SeminarChris HaywardTBA (galaxy formation) [ + Description ]
04/10/2018Astro SeminarTBA [ + Description ]
04/10/2018Big Apple ColloquiumJulianne DalcantonTba [ + Description ]
04/17/2018Astro SeminarIlsedore CleevesTBA (proto-planetary disks) [ + Description ]
04/24/2018Astro SeminarFederica BiancoLSST Science [ + Description ]
05/01/2018Astro SeminarBen FarrTBA (LIGO, neutron stars) [ + Description ]
05/08/2018Astro SeminarTBA [ + Description ]
05/15/2018Astro SeminarTBA [ + Description ]