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We present thermal infrared observations of the active asteroid (and Geminid meteoroid stream parent) 3200 Phaethon using the Very Large Telescope. The images, at 10.7 micron wavelength, were taken with Phaethon at its closest approach to…

Earth and Planetary Astrophysics · Physics 2019-05-08 David Jewitt , Daniel Asmus , Bin Yang , Jing Li

A ballistic reconstruction of a meteoroid orbit can be made if enough information is available about its trajectory inside the atmosphere. A few methods have been devised in the past and used in several cases to trace back the origin of…

Earth and Planetary Astrophysics · Physics 2013-03-08 Jorge I. Zuluaga , Ignacio Ferrin , Stefan Geens

The under-abundance of asteroids on orbits with small perihelion distances suggests that thermally-driven disruption may be an important process in the removal of rocky bodies in the Solar System. Here we report our study of how the debris…

Earth and Planetary Astrophysics · Physics 2019-03-20 Quanzhi Ye , Mikael Granvik

The Leonids meteor shower of November 1998 has shown a double activity. An unexpected shower of fireballs occurred about 16 hours before the expected maximum of the meteor activity. The activity profile of the fireball shower revealed also…

Astrophysics · Physics 2007-05-23 Costantino Sigismondi

Apollo asteroid 1999 YC may share a dynamical association with the Phaethon-Geminid stream complex (Ohtsuka et al. 2008). Here, we present photometric observations taken to determine the physical properties of 1999 YC. The object shows a…

Astrophysics · Physics 2009-11-13 Toshihiro Kasuga , David Jewitt

We report new observations of the active asteroid P/2010 A2 taken when it made its closest approach to the Earth (1.06 au in 2017 January) after its first discovery in 2010. Despite a crucial role of the rotational period in clarifying its…

Earth and Planetary Astrophysics · Physics 2017-06-28 Yoonyoung Kim , Masateru Ishiguro , Myung Gyoon Lee

The activity of the Quadrantids in January during several years (2008, 2010, 2011 and 2012) has been investigated in the framework of the SPanish Meteor Network (SPMN). For this purpose, an array of high-sensitivity CCD video devices and…

A meteoroid's hypersonic passage through the Earth's atmosphere results in ablational and fragmentational mass loss. Potential shock waves associated with a parent object as well as its fragments can modify the surrounding atmosphere and…

Earth and Planetary Astrophysics · Physics 2020-01-07 Mihai L. Niculescu , Elizabeth A. Silber , Reynold E. Silber

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,…

Earth and Planetary Astrophysics · Physics 2014-05-19 L. Kornoš , P. Matlovič , R. Rudawska , J. Tóth , M. Hajduková , J. Koukal , R. Piffl

Aims. We will test the statistical significance of meteorite-dropping fireballs and NEA clustering using the DN similarity function based on four geocentric quantities (U, theta, phi, and lambda). Methods. We calculated the cumulative…

Earth and Planetary Astrophysics · Physics 2025-10-08 P. M. Shober

The Taurid Meteoroid Complex (TMC) is a broad stream of meteoroids that produces several annual meteor showers on Earth. If the linkage between these showers and 2P/Encke is at the centre of most TMC models, the small size and low activity…

Earth and Planetary Astrophysics · Physics 2022-08-17 A. Egal , P. Wiegert , P. G. Brown

We observed the predicted outburst of the Alpha Monocerotid (AMO) meteor shower on 2019 November 22 with our modernized video and photographic cameras. Due to the short duration and moderate intensity of the outburst, atmospheric…

Earth and Planetary Astrophysics · Physics 2021-10-27 Lukáš Shrbený , Jiří Borovička , Pavel Koten , Pavel Spurný , Rostislav Štork , Kamil Hornoch , Vlastimil Vojáček

The Ursid meteor shower is an annual shower that usually shows little activity. However, its Zenith Hourly Rate sometimes increases, usually either when its parent comet, 8P/Tuttle, is close to its perihelion or its aphelion. Outbursts when…

On the 19th June 2020 at 20:05:07 UTC, a fireball lasting 5.5 s was observed above Western Australia by three Desert Fireball Network observatories. The meteoroid entered the atmosphere with a speed of $14.00 \pm 0.17$ km s$^{-1}$ and…

Conventional meteoroid theory assumes that the dominant mode of ablation is by evaporation following intense heating during atmospheric flight. In this paper we consider the question of whether sputtering may provide an alternative…

Astrophysics · Physics 2009-11-11 L. A. Rogers , K. A. Hill , R. L. Hawkes

Context. (3200) Phaethon is a ~5-km-diameter near-Earth asteroid with a small perihelion distance of 0.14 au and is the parent body of the Geminids. JAXA's DESTINY+ mission will fly by Phaethon in the near future. Aims. We aim to support…

Earth and Planetary Astrophysics · Physics 2025-04-02 Hangbin Jo , Masateru Ishiguro , Derek C. Richardson , Sean E. Marshall , Tomoko Arai , Ko Ishibashi

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…

Earth and Planetary Astrophysics · Physics 2019-05-22 A. Egal , P. Wiegert , P. G. Brown , D. E. Moser , M. Campbell-Brown , A. Moorhead , S. Ehlert , N. Moticska

We analyze here two very bright fireballs produced by the ablation in the atmosphere of two large meteoroids in 2009 and 2010. These slow-moving and deep-penetrating events were observed over Spain in the framework of our Spanish Fireball…

Earth and Planetary Astrophysics · Physics 2015-06-22 Jose M. Madiedo , Josep M. Trigo-Rodriguez , Jose L. Ortiz , Alberto J. Castro-Tirado , Jesus Cabrera-Caño

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…

Earth and Planetary Astrophysics · Physics 2019-10-25 Althea V. Moorhead

The Taurid Resonant Swarm (TRS) within the Taurid Complex hosts dynamically-concentrated debris in a 7:2 mean-motion resonance with Jupiter. Fireball observations have confirmed that the TRS is rich in sub-meter-sized particles, but whether…

Earth and Planetary Astrophysics · Physics 2025-09-29 Quanzhi Ye , Jasmine Li , Denis Vida , David L. Clark , Eric C. Bellm
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