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Cosmic Magnetism in Voids and Filaments

23–27 Jan 2023
DAMSLab
Europe/Rome timezone

Contact (SOC)

Session

Monday

23 Jan 2023, 14:00
DAMSLab

DAMSLab

Piazzetta P. P. Pasolini, 5/b, 40122 Bologna BO The allowed maximum number of in presence participants is 50 (more remote connections will be allowed)

Conveners

Monday

  • Fabio Finelli (Istituto Nazionale di Astrofisica (INAF))

Presentation materials

There are no materials yet.

  1. 1. Welcome
    Daniela Paoletti (Istituto Nazionale di Astrofisica (INAF)), Elisa Prandini (DFA Padova), Fabio Finelli (Istituto Nazionale di Astrofisica (INAF)), Franco Vazza (Istituto Nazionale di Astrofisica (INAF))
    23/01/2023, 14:00
  2. 39. Primordial Magnetic Fields - invited review (online)
    Kandaswamy Subramanian (Inter-University Centre for Astronomy and Astrophysics)
    23/01/2023, 14:15
  3. 42. Cosmic Recombination and Primordial Magnetic Fields
    Karsten Jedamzik (University of Montpellier)
    23/01/2023, 15:00

    The presence of primordial magnetic fields (PMFs) at recombination
    may be tested by current and future high precision CMB observations. The most sensitive impact on CMB anisotropies by PMFs seems to be baryon clumping on small scales. PMFs of weak strength could alleviate the Hubble tension, providing a tentative
    indirect detection of PMFs at recombination. I present first results of ...

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  4. 43. Implications of deviations from slow roll for inflationary magnetogenesis
    Sagarika Tripathy (IIT Madras)
    23/01/2023, 16:00

    According to the paradigm of inflationary magnetogenesis, the magnetic fields observed on cosmological scales are generated by introducing a non-conformal coupling function in the standard electromagnetic action. Often, a parity violating term is also added to generate helical magnetic fields. In this talk, I will begin by discussing the effects of deviations from slow roll inflation on the...

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  5. 41. CMB observations: present and future
    Paolo de Bernardis (Dipartimento di Fisica, Sapienza Università di Roma)
    23/01/2023, 16:20

    We review the current status of CMB anisotropy, polarization and spectral distortion measurements, with particular attention to the impact of CMb measurements on the study of voids and filaments.

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  6. 93. Inflationary helical magnetic fields with a sawtooth coupling
    Chiara Cecchini (University of Trento)
    23/01/2023, 16:50

    We study the generation of helical magnetic fields during inflation by considering a model which does not suffer from strong coupling or large back-reaction. We consider a hybrid axion-Ratra model where the EM part is coupled to a non-monotonic time-dependent function with a sharp transition during inflation. The magnetic power spectrum is scale-invariant up to transition and blue-shifted...

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  7. 44. Cosmological Magnetic Fields from the Electroweak Epoch (online)
    Tanmay Vachaspati (Arizona State University)
    23/01/2023, 17:10

    An extension of the Kibble mechanism to electroweak symmetry breaking shows the
    production of cosmologically significant magnetic fields.

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  8. 45. Discussion
    Fabio Finelli (Istituto Nazionale di Astrofisica (INAF))
    23/01/2023, 17:50
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