Events Calendar

 September 2018        
MondayTuesdayWednesdayThursdayFriday
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Smadar Naoz, Triples are Here and There, Triples are Everywhere (Triples in Planets, Stars, and Black holes) (2:00 PM - 3:15 PM)

-- Description: Abstract: Many observed triple systems in our Universe are in a hierarchical configuration: two objects orbit each other in a relatively tight inner binary while the third object is on a much wider orbit. In this case, the secular approximation (i.e., phase-averaged, long-term evolution) can be applied, where the interactions between two non-resonant orbits are equivalent to treating the two orbits as massive wires. Thus, the orbits may change shape and orientation, on timescales longer than the orbital periods, but the semi-major axes are constant. This approximation has been proven to be very useful in many astrophysical contexts, from planetary to triple-star systems and even black holes. I will discuss recent developments in that field and will show that hierarchical triple systems are richer and far more exciting than considered of before. In particular, the tight orbit can reach extremely high eccentricities and undergo chaotic flips of its orientation. This behavior has important implications for the evolution of many systems, and I will present some seminal examples, such as retrograde hot Jupiters, blue stragglers, and black-hole binaries.

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Astro Ph (4:00 PM - 4:30 PM)

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Mohammad Hossein Namjoo, Relativistic Corrections to Non-relativistic Effective Field Theories (2:00 PM - 3:00 PM)

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Astro Ph (4:00 PM - 4:30 PM)

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Daniel Perley, Host-Galaxy Environments of the Universe's Most Extreme Explosions Across Cosmic History (2:00 PM - 3:15 PM)

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Yu-tin Huang, The EFThedron (2:00 PM - 3:30 PM)

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Joe DeRose, Modeling the Non-Linear Universe using Cosmological Simulations (3:30 PM - 4:00 PM)

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Astro Ph (4:00 PM - 4:30 PM)

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Astro Ph (4:00 PM - 4:30 PM)

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Matt Kleban, State of the CCPP (12:30 PM - 1:30 PM)

Blanton Tinker Pullen (2:00 PM - 3:00 PM)

18
Modjaz Group Mtg (11:00 AM - 12:30 PM)

Neelima Sehgal, Measuring the Small-Scale Matter Power Spectrum with Ultra-High-Resolution CMB Lensing (2:00 PM - 3:15 PM)

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Monica Jinwoo Kang, Topological invariants and anomaly cancellation (3:30 PM - 4:30 PM)

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Astro Particle Group Mtg (12:15 PM - 2:00 PM)

Michael Geller, Inflating to the Weak Scale (2:00 PM - 3:30 PM)

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Astro Ph (4:00 PM - 4:30 PM)

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Massimo Stiavelli, Strong Gravitational Lensing Studies of QSO host galaxies with the James Webb space (4:00 PM - 5:00 PM)

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21
Astro Ph (4:00 PM - 4:30 PM)

ISC (6:00 PM - 8:00 PM)

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Siavash Golkar, Machine Learning & Quantum Inference (12:30 PM - 1:30 PM)

Blanton Tinker Pullen (2:00 PM - 3:00 PM)

25
Modjaz Group Mtg (11:00 AM - 12:30 PM)

Savvas Koushiappas, Dark matter searches in dwarf galaxies (2:00 PM - 3:15 PM)

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26
Astro Particle Group Mtg (12:15 PM - 2:00 PM)

Jia Liu, Enhancing Long-lived particles searches at the LHC with precision timing information (2:00 PM - 3:30 PM)

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Astro Ph (4:00 PM - 4:30 PM)

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Alex Kusenko, Black holes gold rush (4:00 PM - 5:00 PM)

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28
, NYU & CUNY Astrofest (10:00 AM - 4:00 PM)

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ISC (6:00 PM - 8:00 PM)

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