Astro/cosmo probes of axions/ALPs

• Asimina Arvanitaki

Room: 4/3-006 - TH Conference Room

Discussion : Dynamical relaxation in a fuzzy dark matter halo

• Scott Tremaine

Room: 4/3-006 - TH Conference Room

Relic abundance of QCD axion DM

• Giovanni Villadoro

Room: 4/3-006 - TH Conference Room

Discussion: Relic abundance of axions

• Malte Buschmann (JGU Mainz)

Room: 4/3-006 - TH Conference Room

Higgs portal with an ALP

• Kwang Sik Jeong

Room: 4/3-006 - TH Conference Room

Discussion: ALP cosmology and its experimental implications

• Fuminobu Takahashi

Room: 4/3-006 - TH Conference Room

Overview of lab searches for axions

• Andreas Ringwald (Deutsches Elektronen-Synchrotron DESY)

Room: 4/3-006 - TH Conference Room

A model-building perspective on axion couplings

• Jihn E. Kim (Kyung Hee University)

Room: 4/3-006 - TH Conference Room

Discussion: Axion model-building

• Keisuke Harigaya (Institute for Advaned Study)

Room: 4/3-006 - TH Conference Room

Outstanding problems in axion cosmology

• David J. E. Marsh

Room: 4/3-006 - TH Conference Room

Discussion: Substructure in an axion dark matter halo — from vortices to black hole hair

• Lam Hui (Columbia University)

Room: 4/3-006 - TH Conference Room

The QCD axion at aLIGO

• Maria Baryakhtar

Room: 4/3-006 - TH Conference Room

Discussion: Astrophysical signatures of/bounds on axions

• Koichi Hamaguchi
• Alessandro Mirizzi

Room: 4/3-006 - TH Conference Room

The Axion Echo method and the Big Flow

• Pierre Sikivie (University of Florida)

Room: 4/3-006 - TH Conference Room Electromagnetic radiation with angular frequency half the axion mass stimulates the decay of dark matter axions and produces an echo, i.e. faint electromagnetic radiation traveling in the opposite direction. Thus one may search for axion dark matter by sending out to space a powerful beam of electromagnetic radiation and listening for its echo. The method is particularly attractive if the Earth is bathed in a cold axion flow of known direction. The Caustic Ring Model of the Milky Way halo predicts such a cold flow with high local density, called the Big Flow. The direction of the Big Flow is determined from triangular features in the IRAS and GAIA maps of the Milky Way with a precision of order 0.5 degree of arc.