Workshop in Cosmology: A multipolar universe?

[Jessica Santiago]

Over the last few years there have been repeated claims of dipolar anisotropies in a number of cosmological observations. These include dipoles in the number counts of distant astrophysical objects, like quasars and radio galaxies for example, as well as dipoles in certain cosmological parameters, such as the Hubble and the deceleration parameter. In view of these reports, the emerging question is whether the associated observations reflect some underlying generic anisotropy of the universe we live in, whether they are late-time additions triggered by the on going process of structure formation in particular, or they are mere artefacts of our gross misinterpretation of the data.

The aim of the workshop is to review the above mentioned issues, both from the observational and from the theoretical point of view, to consider possible explanations and to discuss their potential implications for the future of cosmological research.

​The meeting is organized by the Cosmology Group at the Astronomy Lab of the Aristotle University of Thessaloniki and the venue is on the university campus, near the city center. The event is part of the three-year research project "Tilted Cosmology", funded by the Hellenic Foundation for Research & Innovation.

Among the confirmed Invited Speakers we have:

• Pravabati Chingangbam (IIA, India)

• Chris Clarkson (QMUL, UK)

• Chethan Krishnan (IIS, India)

• Christian Marinoni (Aix-Marseille Univ. France)

• Konstantinos Migkas (Leiden Univ., NL)

• David Parkinson (KASSI, South Korea)

• Leandros Perivolaropoulos (Univ. of Ioannina, Greece)

• Subir Sarkar (Univ. of Oxford U., UK)

• Mohammad Sheikh-Jabbari (IPM, Iran)

Registration deadline: July 20
Abstract submission deadline: August 10
Website: [https://sites.google.com/view/multipolar-universe-workshop/home]
Contact: Christos Tsagas ([Log in to view email]), AUTH Observatory, [https://tsagas0.wixsite.com/mysite/home]