中文
相关论文

相关论文: 2P/Encke, the Taurid complex NEOs and the Maribo a…

200 篇论文

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…

地球与行星天体物理 · 物理学 2022-08-17 A. Egal , P. Wiegert , P. G. Brown

Taurids are an extensive stream of particles produced by comet 2P/Encke, which can be observed mainly in October and November as a series of meteor showers rich in bright fireballs. Several near-Earth asteroids have also been linked with…

地球与行星天体物理 · 物理学 2017-04-24 Pavol Matlovič , Juraj Tóth , Regina Rudawska , Leonard Kornoš

Aims. The existence of asteroid complexes produced by the disruption of these comets suggests that evolved comets could also produce high-strength materials able to survive as meteorites. We chose as an example comet 2P/Encke, one of the…

地球与行星天体物理 · 物理学 2020-09-09 Safoura Tanbakouei , Josep M. Trigo-Rodriguez , Jurgen blum , Iwan Williams , Jordi Llorca

The Taurid Complex is a large interplanetary system that contains comet 2P/Encke, several meteoroid streams, and possibly a number of near-Earth asteroids. The size and nature of the system has led to the speculation that it was formed…

Application of the theoretical results of the author are presented for the case of meteor streams of comet Encke. Theoretical determination of meteor orbit for comet Encke, as a parent body, is presented. Four significant theoretical meteor…

天体物理学 · 物理学 2007-05-23 Jozef Klacka

The goal of this work is to determine if the dynamics of individual Taurid Complex (TC) objects are consistent with the formation of the complex via fragmentation of a larger body, or if the current orbital affinities between the TC members…

地球与行星天体物理 · 物理学 2021-08-11 A. Egal , P. Wiegert , P. G. Brown , P. Spurný , J. Borovička , G. B. Valsecchi

We present the results of imaging photometric and long-slit spectroscopic observations of comet 2P/Encke performed at the heliocentric distance 0.56 au, geocentric distance 0.65 au, and phase angle 109.2 deg on November 4, 2013 and at 1.05…

地球与行星天体物理 · 物理学 2021-01-13 Vera Rosenbush , Oleksandra Ivanova , Valerii Kleshchonok , Nikolai Kiselev , Viktor Afanasiev , Olena Shubina , Dmitry Petrov

We present infrared images and spectra of comets 2P/Encke, 67P/Churyumov-Gerasimenko, and C/2001 HT50 (LINEAR-NEAT) as part of a larger program to observe comets inside of 5 AU from the sun with the Spitzer Space Telescope. The nucleus of…

We observed comet 2P/Encke with the Infrared Space Observatory ISOCAM on July 14, 1997 from a particularly favorable viewing geometry above the comet's orbital plane and at a distance of 0.25 AU. A structured coma was observed, along with a…

天体物理学 · 物理学 2016-08-30 William T. Reach , Mark V. Sykes , David Lien , John K. Davies

The structure of the Taurid meteor complex based on photographic orbits available in the IAU Meteor database is studied. We have searched for potential sub-streams or filaments to be associated with the complex utilizing the…

地球与行星天体物理 · 物理学 2011-03-23 V. Porubčan , L. Kornoš , I. P. Williams

We investigate the spectra, material properties, and orbital distribution of millimeter- to decimeter-sized meteoroids. Our study aims to distinguish the characteristics of populations of differently sized meteoroids and reveal the…

地球与行星天体物理 · 物理学 2019-09-11 Pavol Matlovič , Juraj Tóth , Regina Rudawska , Leonard Kornoš , Adriana Pisarčíková

Using the Secular Light Curve (SLC) formalism (Ferr\'in, 2010), we have catalogued 88 probable members of the Taurid Complex (TC). 51 of them have useful SLCs and 34 of these (67%) exhibit cometary activity. This high percentage of active…

地球与行星天体物理 · 物理学 2021-09-15 Ignacio Ferrin , Vincenzo Orofino

The $\delta$-Cancrid meteoroid stream forms four active meteor showers which are observable on the Earth annually during January-February and August-September. The stream's definite parent comet has not been established. We performed a…

地球与行星天体物理 · 物理学 2024-10-31 G. I. Kokhirova , M. Zhang , X. -G. Li , A. I. Zhonmuhammadi , X. Liu

We present results of imaging polarimetry of comet 2P/Encke performed on January 23, 2017 at the heliocentric (1.052 au) and geocentric (1.336 au) distances and phase angle 46.8 deg, 46 days before perihelion. Observations were made through…

We have performed a coordinated focused ion beam (FIB)-scanning and transmission electron microscopy (S/TEM), electron probe microanalysis (EMPA)-synchrotron X-ray fluorescence (SXRF) microprobe study to determine phase-specific…

地球与行星天体物理 · 物理学 2021-08-18 Sheryl A. Singerling , Stephen R. Sutton , Antonio Lanzirotti , Matthew Newville , Adrian J. Brearley

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…

The origin of the Taurid complex is still debated. In addition to comet 2P/Encke, various asteroids were proposed to be members of the complex and thus possible parent bodies of Taurid meteoroids. Studies of physical properties of Taurid…

地球与行星天体物理 · 物理学 2020-01-27 Jiri Borovicka , Pavel Spurny

We present evidence, via a large survey of 191 new spectra along with previously-published spectra, of a divide in the 3-$\mu$m spectral properties of the low-albedo asteroid population. One group ("Sharp-types" or ST, with band centers $<$…

Context. Comet 46P/Wirtanen is a near-Earth object (NEO) for which no associated meteor shower has ever been reported. Aims. This study is aimed at improving our understanding of why there has been no observed shower activity for this NEO…

地球与行星天体物理 · 物理学 2023-12-06 Jeremie Vaubaillon , Qhanzhi Ye , Auriane Egal , Mikiya Sato , Danielle Moser

High entry speed (> 25 km/s) and low density (< 2500 kg/m3) are two factors that lower the chance of a meteoroid to drop meteorites. The 26 g carbonaceous (CM2) meteorite Maribo recovered in Denmark in 2009 was delivered by a superbolide…

地球与行星天体物理 · 物理学 2019-02-05 Jiri Borovicka , Olga Popova , Pavel Spurny
‹ 上一页 1 2 3 10 下一页 ›