Detection of the 2021 Arid Meteor Shower on Maunakea, Hawai'i
Ichi Tanaka, Hitoshi Hasegawa, Toyokazu Uda, Mikiya Sato, Jun-ichi Watanabe, Masanobu Higashiyama

TL;DR
This study reports the first detection of the 2021 Arid Meteor Shower from Maunakea using a novel YouTube live camera, confirming increased meteor activity linked to dust ejected during the 2014 outburst of Comet 15P/Finlay.
Contribution
It introduces a new observational setup utilizing a publicly accessible live camera for meteor detection and links the observed meteors to high-velocity dust from a specific comet outburst.
Findings
Detected a sixfold increase in meteors near the predicted radiant.
Confirmed the activity was still high 4-5 hours after the peak.
Attributed the meteors to high-velocity dust from the 2014 outburst.
Abstract
We report the successful detection of the "Arid" Meteor Shower (IAU\#1130 ARD), predicted to emerge for the first time in 2021, using a publicly accessible YouTube live camera developed by us. This live camera, installed on the Subaru Telescope dome in the summit region of Maunakea, Hawai'i, features a wide field of view (70 deg by 40 deg) and high sensitivity, capable of observing stars fainter than 6th magnitude. Meteor detection was performed in two ways: visual inspection by citizen viewers and subsequent validation through automated detection. As a result, we confirmed that the number of meteors appearing from near the predicted radiant increased by more than six times (~9 sigma) compared to the preceding and following days. Our observation time was 4-5 hours after the predicted peak (solar longitude = 193.9 deg), providing clear data indicating that the activity had not yet…
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Taxonomy
TopicsAstro and Planetary Science · History and Developments in Astronomy · Gamma-ray bursts and supernovae
