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2016 CAP Congress / Congrès de l'ACP 2016

12–17 Jun 2016
University of Ottawa
America/Toronto timezone
Welcome to the 2016 CAP Congress! / Bienvenue au congrès de l'ACP 2016!

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Session

W3-5 Cosmology and Astrophysics (DTP-DIMP-PPD) / Cosmologie et astrophysique (DPT-DPIM-PPD)

W3-5
15 Jun 2016, 15:15
University of Ottawa

University of Ottawa

SITE Building, 800 King Edward Ave, Ottawa, ON

Conveners

W3-5 Cosmology and Astrophysics (DTP-DIMP-PPD) / Cosmologie et astrophysique (DPT-DPIM-PPD)

  • Mohammad Ahmady (Mount Allison University)

Presentation materials

There are no materials yet.

  1. 1263. The Conformal Standard Model, Higgs Portal Extensions, and Dark Matter
    Tom Steele (U of Saskatchewan)
    15/06/2016, 15:15
    Theoretical Physics / Physique théorique (DTP-DPT)
    Invited Speaker / Conférencier invité
    One of the possible custodial symmetries responsible for naturalness in the Standard Model is conformal (scale invariance) symmetry of the Lagrangian. After a brief review of the Higgs mechanism in the classically-conformal Standard Model, Higgs-portal singlet extensions as a model for dark matter are introduced. Results for the dark matter mass and cosmological abundance predictions in...
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  2. 1038. Turnaround radius in an accelerated universe for Einstein and for modified gravity
    Valerio Faraoni (Bishop's University)
    15/06/2016, 15:45
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral (Non-Student) / orale (non-étudiant)
    In an accelerating universe there is a maximum radius above which a shell of test particles cannot collapse and is dispersed by the cosmic expansion. This radius could be used in conjunction with observations of large structures to constrain the equation of state of the universe. We express the turnaround radius in general relativity in terms of the Hawking quasilocal mass and we extend...
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  3. 1037. Secular Increase of the Astronomical Unit: A Hubble-like Expansion?
    Réjean Plamondon (École Polytechnique de Montréal)
    15/06/2016, 16:00
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral (Non-Student) / orale (non-étudiant)
    This paper analyses the outcome of a new metric [1] that describes the space-time geometry of a static symmetric massive celestial object. It is based on an *erfc* potential that characterizes the gravitation field emerging from this model. The metric relies on an intrinsic physical constant σ, a star-specific proper length that scales measurements in its surroundings. Although σ must be...
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  4. 1072. Formation and Evaporation of Nonsingular Black Holes in New 2d Gravity
    Gabor Kunstatter (University of Winnipeg)
    15/06/2016, 16:15
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral (Non-Student) / orale (non-étudiant)
    I will first briefly review the key features of the black hole information loss paradox and the famous “firewall” resolution of Almheiri, Marolf, Polchinski and Susskind. I will then go on to describe work on a different, considerably more mundane solution to the problem based on the observation that the singularity at the center of all black holes lies at the heart of the information loss...
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