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相关论文: A 2022 $\tau$-Herculid meteor cluster from an airb…

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To date only very few meteor clusters have been instrumentally recorded. This means that every new detection is an important contribution to the understanding of these phenomena, which are thought to be evidence of the meteoroid…

A tau-Herculid meteor outburst or even a storm was predicted by several models to occur around 5~UT on 31~May, 2022 as a consequence of the break-up of comet 73P/Schwassmann-Wachmann 3 in 1995. The multi-instrument and multi-station…

The $\tau$-Herculids (IAU shower number #61 TAH) is a minor meteor shower associated with comet 73P/Schwassmann-Wachmann 3, a Jupiter-Family comet that disintegrated into several fragments in 1995. As a consequence of the nucleus break-up,…

地球与行星天体物理 · 物理学 2023-06-07 Auriane Egal , Paul A. Wiegert , Peter G. Brown , Denis Vida

As part of an intensive effort to observe the predicted 2022 Tau Herculids outburst, we recorded almost 800 individual meteor streaks on May 30th and 31st, 2022, using a high-sensitivity Sony~$\alpha$7 camera. The video recordings were…

As of today, there is no official definition of a meteor cluster. It is usually identified as a large number of meteors sharing a similar radiant and velocity, all occurring within a few seconds. Only eight clusters have been reported so…

地球与行星天体物理 · 物理学 2025-04-08 A. Ashimbekova , J. Vaubaillon , P. Koten

A meteor outburst consisting of at least 22 meteors above the Baltic sea and southern Scandinavia that occurred on 30 October 2022 was recorded using multiple cameras. A bright fireball was followed by fainter meteors over a 10 second…

地球与行星天体物理 · 物理学 2024-01-10 Pavel Koten , David Čapek , Steinar Midtskogen , Lukáš Shrbený , Pavel Spurný , Mike Hankey

The encounter of the meteoric material from 73P/Schmassmann--Wachmann~3 produced during the comet's 1995 outburst in May 2022 provides a rare and valuable opportunity to understand a fragmenting comet. Here we explore various ejection…

地球与行星天体物理 · 物理学 2022-07-20 Quanzhi Ye , Jérémie Vaubaillon

The October Draconid meteor shower, produced by comet 21P/Giacobini-Zinner, is notorious for rare but intense outbursts, some exceeding rates of about 10 000 meteors per hour. In 2025, Earth will encounter young trails ejected by the comet…

地球与行星天体物理 · 物理学 2025-10-01 Auriane Egal , Paul Wiegert , Danielle E. Moser , Peter G. Brown , Margaret Campbell-Brown

Meteor showers and their outbursts are the dominant source of meteoroid impact risk to spacecraft on short time scales. Meteor shower prediction models depend on historical observations to produce accurate forecasts. However, the current…

A new meteor shower $\lambda$-Sculptorids produced by the comet 46P/Wirtanen was forecast for December 12, 2023. The predicted activity was highly uncertain, but generally considered to be low. Observations in Australia, New Zealand, and…

地球与行星天体物理 · 物理学 2024-02-13 D. Vida , J. M. Scott , A. Egal , J. Vaubaillon , Q. -Z. Ye , D. Rollinson , M. Sato , D. E. Moser

Every moment, countless meteoroids enter our atmosphere unseen. The detection and measurement of meteors offer the unique opportunity to gain insights into the composition of our solar systems' celestial bodies. Researchers, therefore,…

天体物理仪器与方法 · 物理学 2022-09-01 Rabea Sennlaub , Martin Hofmann , Mike Hankey , Mario Ennes , Thomas Müller , Peter Kroll , Patrick Mäder

Meteor clusters are typically defined as groups of meteors that appear close together in both space and time. To date, only a handful of such events have been recorded instrumentally and analysed in detail. In many documented cases, thermal…

地球与行星天体物理 · 物理学 2026-04-10 Pavel Koten , David Čapek , Juraj Tóth , Jeremie Vaubaillon , Aisha Ashimbekova , Simon Anghel , Junichi Watanabe , Tomáš Vörös

The Desert Fireball Network observed a significant outburst of fireballs belonging to the Southern Taurid Complex of meteor showers between October 27 and November 17, 2015. At the same time, the Cameras for Allsky Meteor Surveillance…

A cluster analysis was applied to the combined meteoroid orbit database derived from low-light level video observations by the SonotaCo consortium in Japan (64,650 meteors observed between 2007 and 2009) and by the Cameras for All-sky…

地球与行星天体物理 · 物理学 2014-05-09 Regina Rudawska , Peter Jenniskens

We use machine learning to develop a framework for classifying meteoroids based on 13 directly observed parameters from the Global Meteor Network. This method adds depth to the $K_{b}$ parameter, which uses only three parameters. We employ…

地球与行星天体物理 · 物理学 2026-04-28 Samantha Hemmelgarn , Nicholas Moskovitz , Denis Vida

Predictions of the 2018 Draconid activity at the Earth and the Sun-Earth L1 and L2 Lagrange points are presented. Numerical simulations of the meteoroids' ejection and evolution from comet 21P/Giacobini-Zinner are performed with a careful…

地球与行星天体物理 · 物理学 2018-10-17 Auriane Egal , Paul Wiegert , Peter G. Brown , Danielle E. Moser , Althea V. Moorhead , William J. Cooke

Meteors carry important and indispensable information about the interplanetary environment, which can be used to understand the origin and evolution of our solar system. We have developed a Multi-station Meteor Monitoring ($\rm M^3$) system…

天体物理仪器与方法 · 物理学 2024-10-15 Z. Li , H. Zou , J. Liu , J. Ma , X. Zhao , X. Li , Z. Tu , B. Zhang , R. Wang , S. Wang , Marco Xue

This work presents numerical simulations of meteoroid streams released by comet 21P/Giacobini-Zinner over the period 1850-2030. The initial methodology, based on Vaubaillon et al. (2005), has been updated and modified to account for the…

地球与行星天体物理 · 物理学 2019-05-22 A. Egal , P. Wiegert , P. G. Brown , D. E. Moser , M. Campbell-Brown , A. Moorhead , S. Ehlert , N. Moticska

We present a new method to detect meteor showers using the Density-Based Spatial Clustering of Applications with Noise algorithm (DBSCAN; Ester et al. 1996). DBSCAN is a modern cluster detection algorithm that is well suited to the problem…

地球与行星天体物理 · 物理学 2018-03-14 Glenn Sugar , Althea Moorhead , Peter Brown , Bill Cooke

The European viDeo MeteOr Network Database (EDMOND) is a database of video meteor orbits resulting from cooperation and data sharing among several European national networks and the International Meteor Organization Video Meteor Network,…

地球与行星天体物理 · 物理学 2014-05-19 L. Kornoš , P. Matlovič , R. Rudawska , J. Tóth , M. Hajduková , J. Koukal , R. Piffl
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