Meteor Showers from the Debris of Broken Comets: D/1819 W<sub>1</sub>(Blanpain), 2003 WY<sub>25</sub>, and the Phoenicids

Jenniskens, Peter; Lyytinen, E.

doi:10.1086/432469

Cited by 34 publications

(35 citation statements)

References 12 publications

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“…Our most important result is that 2003 WY 25 shows a coma when at 1.6 AU heliocentric distance and is thus a comet. This observation fully supports the inference, made on dynamical grounds by Jenniskens & Lyytinen (2005), that 2003 WY 25 is related both to comet D/1819 W1 (Blanpain) (of which it may be a fragment) and to the Phoenicid meteor stream.…”

Section: Discussionsupporting

confidence: 86%

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Comet D/1819 W1 (Blanpain): Not Dead Yet

Jewitt

2006

Astron J

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We present a new observation that conclusively reveals the cometary nature of the planet-crossing asteroid 2003 WY 25 through the detection of a weak optical coma. This observation strongly supports the identification of 2003 WY 25 with the lost comet D/1819 W1 (Blanpain) made previously on the basis of dynamical similarity. It also shows that 2003 WY 25 is a continuing but weak source of particles for the Phoenicid meteor stream with a mass injection rate into the stream of $10 À2 kg s À1 . This is too small to supply the estimated 10 11 kg stream mass on any plausible timescale, suggesting that the mass injection into the stream may be episodic and/or involve additional sources. We estimate a nucleus radius near 160 m and find that, consistent with estimates for other meteor streams, the ratio of the nucleus mass to the stream mass is of order unity. We find that 2003 WY 25 is the smallest cometary nucleus yet observed.

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Section: Discussionsupporting

confidence: 86%

“…The mass of the Phoenicid stream has been estimated as $10 11 kg (Jenniskens & Lyytinen 2005). With a steady mass injection rate of 10 À2 kg s À1 , this stream would require an implausibly long 10 13 s (3 ; 10 5 yr) to reach its present mass.…”

Section: Observational Resultsmentioning

confidence: 99%

Comet D/1819 W1 (Blanpain): Not Dead Yet

Jewitt

2006

Astron J

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“…It is, however, possible that some coincidences are random, since the orbits are similar to those of asteroids evolving from the ν 6 resonance (Valsecchi et al 1995). We do not list as complex the comet D/1819 W1 Blanpain, its probable fragment 2003 WY 25 (Jenniskens & Lyytinen 2005) and the December Phoenicid stream. The number of involved bodies and streams is not large enough to classify as a complex.…”

Section: Known Parent Bodiesmentioning

confidence: 99%

“…During the normal cometary activity near perihelion, the drag of vapors from evaporating ices takes away also the solid particles, dust and meteoroids (Whipple 1951). Secondly, a catastrophic disruption of comets produces not only secondary nuclei but also a large amount of dust and meteoroids (Jenniskens 2006). Finally, collisions among solar system bodies, in particular among asteroids, produces collisional fragments, including meteoroids (Nesvorný et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Properties of meteoroids from different classes of parent bodies

Borovička

2006

Proc. IAU

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Abstract. Meteoroids observed to disintegrate in the terrestrial atmosphere can be directly linked to their parent bodies in case that they belong to certain meteor showers. We present a list of two dozens of parent bodies reliably associated with well recognized meteor showers. Among the parent bodies are long period comets, Halley-type comets, Jupiter family comets, comets of the inner solar system (such as 2P/Encke) and asteroids.Physical and chemical properties of meteoroids coming from various parents are compared on the basis of meteor heights, decelerations, light curves and spectra. Jupiter family comets produce meteoroids with the lowest strength, namely porous aggregates of dust grains with bulk densities of about 0.3 g cm −3 or less. Halley type material is somewhat stronger and the material related to comet Encke is even stronger. In addition, small strong constituents, perhaps similar to carbonaceous chondrites, can be encountered within the normal cometary material. The strength of cometary material is also enhanced by long-term exposure to cosmic rays and by solar heating in the vicinity to the Sun (r < 0.2 AU). Both these processes lead to the loss of volatile sodium. Southern δ-Aquariids, Geminids and partly also Quadrantids were influenced by solar radiation. We argue that these showers, the asteroids associated with them ((3200) Phaethon and 2003 EH 1), and the whole interplanetary complexes they belong to are of cometary origin. The argument is supported by lower than chondritic Fe/Mg ratio found in Geminids as well as in Halley type comets. The typical property of stony meteoroids of asteroidal origin is the presence of internal cracks which cause that the incoming meteoroids are much weaker than the recovered meteorites.

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“…First a given meteor trail can flicker as rapidly as 100 Hz (Babadzhanov & Konovalova 2004, reporting data on the Geminids from Dushanbe), due, it seems, to being made of small grains glued together by stuff of lower boiling point (Koten et al 2004). That the trails are sometimes helical must mean that the grains are irregular enough for rotation or precession to show, and we mention it primarily for the sake of noting that the discovery was made on 1 January Jenniskens & Lyytinen (2005) pointed out that the comet was also C/1490Y 1 , so that there had been lots of time for both it and its debris to shift orbits. The same paper notes that the Phoenicids are to be associated with a comet that is both 2003 WH 23 and D/1819 W 1 (Blanpain), a set of phenomena ripe with opportunities for mispronunciation.…”

Section: The M'smentioning

confidence: 96%

Astrophysics in 2005

Trimble

Aschwanden

Hansen

2006

PUBL ASTRON SOC PAC

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ABSTRACT. We bring you, as usual, the Sun and Moon and stars, plus some galaxies and a new section on astrobiology. Some highlights are short (the newly identified class of gamma-ray bursts, and the Deep Impact on Comet 9P/Tempel 1), some long (the age of the universe, which will be found to have the Earth at its center), and a few metonymic, for instance the term "down-sizing" to describe the evolution of star formation rates with redshift.

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Meteor Showers from the Debris of Broken Comets: D/1819 W₁(Blanpain), 2003 WY₂₅, and the Phoenicids

Cited by 34 publications

References 12 publications

Comet D/1819 W1 (Blanpain): Not Dead Yet

Comet D/1819 W1 (Blanpain): Not Dead Yet

Properties of meteoroids from different classes of parent bodies

Astrophysics in 2005

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Meteor Showers from the Debris of Broken Comets: D/1819 W1(Blanpain), 2003 WY25, and the Phoenicids

Cited by 34 publications

References 12 publications

Comet D/1819 W1 (Blanpain): Not Dead Yet

Comet D/1819 W1 (Blanpain): Not Dead Yet

Properties of meteoroids from different classes of parent bodies

Astrophysics in 2005

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Product

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Meteor Showers from the Debris of Broken Comets: D/1819 W₁(Blanpain), 2003 WY₂₅, and the Phoenicids