Time-delay measurements from Antarctic neutron monitor stations indicate weak spectral changes during 27-day variations

• Main Authors: Muangha, P, Ruffolo, D, Saiz, A, Banglieng, C, Evenson, P, Seunarine, S, Oh, S, Jung, J, Marcus Duldig, John Humble
• Format: Conference Object
• Language: unknown
• Published: 2021
• Subjects: High energy astrophysics and galactic cosmic rays; cosmic rays; cosmic ray spectrum; neutron monitor; solar cycle modulation; high speed solar wind streams; corotating interaction regions; Antarctic; Bogo; South Pole; Antarc*; South pole
• Online Access: https://figshare.com/articles/conference_contribution/Time-delay_measurements_from_Antarctic_neutron_monitor_stations_indicate_weak_spectral_changes_during_27-day_variations/23112830

Using neutron time-delay data from neutron monitors (NMs), we can extract the leader fraction, L , of neutron counts that do not follow a previous neutron count in the same counter tube due to the cosmic ray shower. L is the inverse of the neutron multiplicity and serves as a proxy of the cosmic ray...