CAMS confirmation of previously reported meteor showers

• Published in: Icarus (New York, N.Y. 1962) Vol. 266; pp. 355 - 370
• Main Authors: Jenniskens, P., Nénon, Q., Gural, P.S., Albers, J., Haberman, B., Johnson, B., Holman, D., Morales, R., Grigsby, B.J., Samuels, D., Johannink, C.
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.03.2016
• Subjects: Asteroids; Cams; Comets, dust; Drift; Ecliptic; Interplanetary dust; Lists; Meteoroid showers; Meteors; Near-Earth objects; Reproduction; Showers; Comets, dust; Meteors; Interplanetary dust; Near-Earth objects; Asteroids
• ISSN: 0019-1035; 1090-2643
• DOI: 10.1016/j.icarus.2015.08.014

•A new video-based survey of meteor showers has confirmed the existence of another 41 meteor showers, raising the number of known meteor showers from 95 to 136.•Among the now confirmed meteor showers that were previously reported are the α-Coronae Borealids active in January, the α-Virginids of April, the h-Virginids of May, the June μ-Cassiopeiids, the 49-Andromedids of July, the λ-Ursae Majorids of October, the η-Hydrids of December, and the December σ-Virginids. Leading up to the 2015 IAU General Assembly, the International Astronomical Union’s Working List of Meteor Showers included 486 unconfirmed showers, showers that are not certain to exist. If confirmed, each shower would provide a record of past comet or asteroid activity. Now, we report that 41 of these are detected in the Cameras for Allsky Meteor Surveillance (CAMS) video-based meteor shower survey. They manifest as meteoroids arriving at Earth from a similar direction and orbit, after removing the daily radiant drift due to Earth’s motion around the Sun. These showers do exist and, therefore, can be moved to the IAU List of Established Meteor Showers. This adds to 31 previously confirmed showers from CAMS data. For each shower, finding charts are presented based on 230,000 meteors observed up to March of 2015, calculated by re-projecting the drift-corrected Sun-centered ecliptic coordinates into more familiar equatorial coordinates. Showers that are not detected, but should have, and duplicate showers that project to the same Sun-centered ecliptic coordinates, are recommended for removal from the Working List.