Origin of the Signals Recorded on February 23, 1987 in Gravity Antennas

During the SN1987A explosion on February 23, 1987, four underground neutrino detectors and two gravitational antennas in Rome and Maryland detected signals associated with the gravitational collapse of the star’s core. Because it is impossible to detect direct gravitational radiation from the collap...

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Bibliographic Details
Published in:Physics of atomic nuclei 2024-04, Vol.87 (2), p.118-124
Main Authors: Agafonova, N. Yu, Malgin, A. S.
Format: Article
Language:English
Subjects:
Amplitudes
Antennas
Detectors
ELEMENTARY PARTICLES AND FIELDS
Energy distribution
Experiment
Gravitational collapse
Muons
Neutrinos
Particle and Nuclear Physics
Physics
Physics and Astronomy
Supernova 1987A
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Summary:During the SN1987A explosion on February 23, 1987, four underground neutrino detectors and two gravitational antennas in Rome and Maryland detected signals associated with the gravitational collapse of the star’s core. Because it is impossible to detect direct gravitational radiation from the collapse of SN1987A with antennas, it is still unclear what events were recorded by gravitational antennas. In this work, an amplitude analysis of the signals from gravitational antennas in Rome and Maryland in the vicinity of the signals from neutrino detectors during Supernova SN1987A was carried out. It is shown that the amplitude distributions in all antenna signals are consistent with the distribution of fluctuating energy losses of atmospheric muons crossing the antennas. A conclusion has been made about the muon origin of signals Weber type antennas, aluminized cylinders with a mass of 2–3 t.
ISSN:1063-7788
1562-692X
DOI:10.1134/S1063778824020030