Millisecond Pulsars Modify the Radio-SFR Correlation

Video Player is loading.
Loaded: 0%
Remaining Time 0:00
1x
  • Quality
    • 58 views

    • 0 favorites

    • uploaded July 5, 2021

    Discussion timeslot (ZOOM-Meeting): 16. July 2021 - 18:00
    ZOOM-Meeting URL: https://icrc2021.desy.de/pf_access_abstracts
    Corresponding Session: https://icrc2021-venue.desy.de/channel/Presenter-Forum-1-Evening-All-Categories/48
    Abstract:
    'The observed correlation between the far-infrared and radio luminosities of galaxies illustrates the close connection between star formation and cosmic-ray production. Intriguingly, recent LOFAR observations find a peculiar radio excess in galaxies with low star-formation rates and high stellar masses. We show that recycled/millisecond pulsars (MSPs) can dominate the nonthermal emission in these massive quiescent galaxies and explain the excess. This is in line with recent gamma-ray observation suggesting that MSPs may also efficiently accelerate cosmic-ray electrons. We find that MSP-based models provide a significantly improved fit to the LOFAR data. We discuss the implications for the radio and gamma-ray excesses in M31 and local electron and positron observations.'

    Authors: Takahiro Sudoh | Tim Linden | John Beacom
    Indico-ID: 1392
    Proceeding URL: https://pos.sissa.it/395/1020

    Tags:
    Presenter:

    Takahiro Sudoh


    More Media in "Multi-Messenger"