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 ]
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 ]

Description: The future of directly imaged exoplanet characterization studies lies with the next generation of Telescopes. While exciting exoplanet discoveries have been made with current facilities, we have primarily been left with open questions as to the formation, evolution and current state of exoplanet atmospheres. Measuring and understanding the trends within the fundamental properties of exoplanets are at the core of answering these questions. Properties like effective temperature, gravity, mass, radius, and metallicity are key parameters for investigating other worlds. While the transiting and radial velocity planet populations have been investigated via the parameters of their host stars, to date it has been nearly impossible to measure any of these for an exoworld directly from its own data. Major advancements in our understanding have been made not by studying directly imaged exoplanets alone, but by examining their relationship to isolated young brown dwarfs. These substellar objects have parallax measurements along with broad band photometry and spectral coverage from the optical through the mid infrared that has led to breakthroughs in our understanding of cool atmosphere physics. In this talk I will use a population of 152 young brown dwarfs supplemented with outlier populations of extremely cold (Y dwarfs) and low metallicity (subdwarfs) objects with parallaxes to demonstrate how youth, temperature, and gravity alter the observable properties of this analog population to giant exoplanets. Using a library of spectral energy distributions for the brown dwarf population I will show how we have teased out atmosphere parameters of isolated exoplanet equivalents and started to decipher key observables that could point to formation and evolution differences among objects. (2:00 PM, 726 Broadway, 940, CCPP Seminar)
04/03/2018Astro SeminarChris HaywardStarbursts, outflows, and the emergence of disk galaxies [ + Description ]
04/10/2018Astro SeminarNo Astro Seminar (Big Apple Colloquium) [ + Description ]
04/10/2018Big Apple ColloquiumJulianne DalcantonTba [ + Description ]
04/17/2018Astro SeminarIlsedore CleevesX-ray Driven Time Domain Astrochemistry in Protoplanetary Disks [ + Description ]
04/24/2018Astro SeminarFederica BiancoAre we ready for LSST? [ + Description ]
05/01/2018Astro SeminarBen FarrThe Compact Binary Census after LIGO/Virgo's Second Observing Run [ + Description ]
05/08/2018Astro SeminarKate RowlandsCaught in the act: charting galaxy transformation over cosmic time [ + Description ]
05/15/2018Astro SeminarTBA [ + Description ]



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