Event Calendar

Title: Formation of Black Hole Mergers in Dense Stellar Systems

Abstract: I will present recent results on how binary black holes (BBHs) merge in dense stellar systems through chaotic few-body interactions. By taking into account GR effects in the equation-of-motion, I will show that dense stellar systems are likely to produce non-circular (eccentric) mergers in both LISA and LIGO with rates that are 10-100 times larger than all major groups recently have reported. This makes eccentricity a promising parameter for distinguishing BBH merger channels from each other. I will further discuss new ideas related to how the BBH merger distribution indirectly can be mapped using interrupted stellar tidal disruptions.

Host: Wei Zhu

Location: MP1318A

Location: MP1318A

The schedule of speakers: https://tinyurl.com/cita-blackboard Location: MP 1318A

Location: MP 15th Floor Conf Room

Weekly paper discussion focussing on pulsars, compact objects, and propagation effects. For a list of upcoming discussions, see: https://docs.google.com/spreadsheets/d/16TXacDDCk5FxMyw_842h5JHuq0h0RNhlWvp4li64edM/edit?usp=sharing If you would like to sign up for the presenter rota, email: simard@astro.utoronto.ca Location: CITA lounge

Open discussion of stars- and planets-related topics or more specialized discussion of dynamics-related papers on alternating weeks. See here for details. Location: MP 1318A

The schedule of speakers: https://tinyurl.com/cosmo-rota  
Location: 15th floor conference room

Title: TESS and the Shortest-Period Planets

Abstract: Short-period planets were a gift from nature that allowed for the rapid acceleration of exoplanetary science. They are more readily studied than long-period planets, and their existence and orbital properties pose interesting questions. The shortest period giant planets have orbits that are formally unstable to tidal evolution - they should be spiralling into their host stars - and indeed there is now evidence for orbital decay of at least one hot Jupiter. In addition, the Kepler mission revealed a population of Earth-sized planets with periods as short as 4 hours. How did they form? Are they related to hot Jupiters? I will present our recent observational efforts to try and answer these questions. I will also present some early results from the Transiting Exoplanet Survey Satellite, which will identify thousands of short-period planets around the nearest and brightest stars in the sky.

Host: Cristobal Petrovich

Location: MP 1318

Title: TBA

Abstract: TBA

Host: John Zanazzi

Location: MP1318A

The schedule of speakers: https://tinyurl.com/cita-blackboard Location: MP 1318A

Location: MP 15th Floor Conf Room

Weekly paper discussion focussing on pulsars, compact objects, and propagation effects. For a list of upcoming discussions, see: https://docs.google.com/spreadsheets/d/16TXacDDCk5FxMyw_842h5JHuq0h0RNhlWvp4li64edM/edit?usp=sharing If you would like to sign up for the presenter rota, email: simard@astro.utoronto.ca Location: CITA lounge

The schedule of speakers: https://tinyurl.com/cosmo-rota  
Location: 15th floor conference room