Roberto Gorelli points our attention at a recently published meteor related paper.
Meteor shower activity profiles and the use of orbital dissimilarity (D) criteria
This paper has been submitted for publication to Astronomical Journal by Althea V. Moorhead.
Abstract: Orbital dissimilarity, or D, criteria are often used to select members of a meteor shower from a set of meteor observations. These criteria provide a quantitative description of the degree to which two orbits differ; if the degree of dissimilarity between a shower’s reference orbit and an individual meteor does not exceed a selected threshold, the meteor is considered to be a member of that shower. However, members of a meteor shower tend to disperse in longitude of the ascending node (and thus in solar longitude) while preserving a common Sun-centered ecliptic radiant. Employing dissimilarity criteria to judge shower membership may therefore make the shower appear briefer than it actually is. We demonstrate this effect for two simulated meteor showers and assess the maximum permitted deviation in solar longitude as a function of radiant and velocity measurement error.
You can download this paper for free: https://arxiv.org/pdf/1910.10729.pdf (12 pages).
Older meteor library news:
- A fireball and potentially hazardous binary near-Earth asteroid (164121) 2003 YT1, by Toshihiro Kasuga, Mikiya Sato, Masayoshi Ueda, Yasunori Fujiwara, Chie Tsuchiya, and Jun-ichi Watanabe. (18 October 2019).
- Spectral and orbital survey of medium-sized meteoroids, by Pavol Matlovic, Juraj Tóth, Regina Rudawska, Leonard Kornoš and Adriana Pisarcíková. (7 August 2019).
- Rising from Ashes or Dying Flash? Mega Outburst of Small Comet 289P/Blanpain in 2013, by Quanzhi Ye (叶泉志) and David L. Clark. (19 June 2019).
- Discovery of a Meteor of Interstellar Origin, by Amir Siraj and Abraham Loeb. (10 June 2019).
- A Mathematical Model for Simulating Meteor Showers, by M. Cardinot and A. Namen. (4 June 2019).
- The 2019 Taurid resonant swarm: prospects for ground detection of small NEOs, by David Clark, Paul Wiegert and Peter G. Brown. (28 May 2019).
- Analysis of the June 2, 2016 bolide event over Arizona, by Csaba Palotai, Ramanakumar Sankar, Dwayne L. Free, J. Andreas Howell, Elena Botella and Daniel Batcheldor. (25 May 2019).
- Identifying Interstellar Objects Trapped in the Solar System through Their Orbital Parameters, by Amir Siraj and Abraham Loeb. (5 May 2019).
- Meteor Shower Modeling: Past and Future Draconid Outbursts, by A. Egal, P. Wiegert, P. G. Brown, D. E. Moser, M. Campbell-Brown, A. Moorhead, S. Ehlert and N. Moticska. (1 May 2019).
- Meteoroid structure and fragmentation, by M. D. Campbell-Brown. (24 March 2019).
- Solar cycle variation in radar meteor rates, by M. D. Campbell-Brown. (26 February 2019).
- A New Meteoroid Model, by Valeri V. Dikarev, Eberhard Grün, William J. Baggaley, David P. Galligan, Markus Landgraf, Rüdiger Jehn. (12 February 2019).
- Lunar impacts, by Costantino Sigismondi. (12 February 2019).
- Lunar impact flashes, by C. Avdellidou and J. Vaubaillon. (10 February 2019).
- The Geminid parent body: (3200) Phaethon, by Patrick A. Taylor, Edgard G. Rivera-Valentín, Lance A.M. Benner, Sean E. Marshall, Anne K. Virkki, Flaviane C.F. Venditti, Luisa F. Zambrano-Marin, Sriram S. Bhiravarasu, Betzaida Aponte-Hernandez, Carolina Rodriguez Sanchez-Vahamonde and Jon D. Giorgini. (10 February 2019).
- Sun approaching asteroids and meteor streams, by Quanzhi Ye and Mikael Granvik. (10 February 2019).
- Waiting to make an impact: A probable excess of near-Earth asteroids in 2018 LA-like orbits, by C. de la Fuente Marcos and R. de la Fuente Marcos. (18 December 2018).
- What mechanisms dominate the activity of Geminid Parent (3200) Phaethon?, by LiangLiang Yu, Wing-Huen Ip and Tilman Spohn. (6 November 2018).
- The Draconid meteoroid stream 2018: prospects for satellite impact detection, by Auriane Egal, Paul Wiegert, Peter G. Brown, Danielle E. Moser, Althea V. Moorhead and William J. Cooke (21 September 2018).
- Modeling the measurement accuracy of pre-atmosphere velocities of meteoroids, by Denis Vida, Peter G. Brown and Margaret Campbell-Brown (15 July 2018).
- The Mayas and Eta Aquariids in AD 250-909, by J.H. Kinsman and D.J. Asher (31 July 2017).