# 17th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2021)

26 August 2021 to 3 September 2021

## Searching for High-Energy Neutrinos from Ultra-Luminous Infrared Galaxies with IceCube

1 Sep 2021, 17:10
50m
Talk in parallel session High Energy Astrophysics, Cosmic Rays and Multimessenger Astronomy

### Speaker

Pablo Correa (Vrije Universiteit Brussel)

### Description

This work presents an IceCube search for high-energy neutrinos from Ultra-Luminous Infrared Galaxies (ULIRGs). ULIRGs are the most luminous infrared objects on the sky, with infrared luminosities exceeding $10^{12}$ solar luminosities. They are mainly powered by starbursts that exhibit star-formation rates larger than 100 solar masses per year. In addition, an active galactic nucleus (AGN) can also contribute significantly to the ULIRG luminosity output. The acceleration of hadrons, and consequently the production of neutrinos, can occur both in starburst and AGN environments. As such, ULIRGs form a source population that could be responsible for a significant fraction of the diffuse neutrino flux observed by IceCube. In this study we perform a stacking analysis on a representative sample of 75 ULIRGs with redshift $z \leq 0.13$ using 7.5 years of IceCube data. We find no evidence for astrophysical neutrinos correlated with our selection of ULIRGs. We therefore compute upper limits on the contribution of the ULIRG source population to the diffuse neutrino observations, and also use these limits to constrain model predictions.

### Primary author

Pablo Correa (Vrije Universiteit Brussel)

### Presentation Materials

 Searching for High-Energy Neutrinos from ULIRGs with IceCube | Pablo Correa | TAUP2021 TAUP2021_ULIRG_analysis_IceCube_PabloCorrea.pdf
###### Your browser is out of date!

Update your browser to view this website correctly. Update my browser now

×