The Tagish Lake meteorite fall: interpretation of fireball physical characteristics

Details The Tagish Lake meteorite fall: interpretation of fireball physical characteristics The Tagish Lake meteorite fall: interpretation of fireball physical characteristics

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.495..497b&link_type=abstract

In: Proceedings of the Meteoroids 2001 Conference, 6 - 10 August 2001, Kiruna, Sweden. Ed.: Barbara Warmbein. ESA SP-495, Noordw

Physics

2

Meteorites, Fireballs, Physics

Scientific paper

We have analyzed available instrumental and eyewitness records associated with the fireball leading to the fall of the Tagish Lake meteorite. Initial chemical and physical studies of this carbonaceous chondrite have shown it to be unique. It is one of the most primitive meteorites yet recovered and is physically weak. By determining the meteoroid trajectory, velocity, and physical breakup in the atmosphere, we can characterise the fireball as intermediate between Type II and Type IIIa, following the classification of Ceplecha et al. (1998). Modelling suggests an initial porosity for the pre-atmospheric meteoroid in the range 40-60%. The initial fragmentation occurred under less than 0.3 MPa dynamic pressure. Determination of Tagish Lake's orbit suggests a linkage to parent bodies in the main asteroid belt, though association with Encke-type comets cannot be strictly excluded. Tagish Lake may represent an intermediate object between chondritic asteroids and cometary bodies consistent with a linkage to D-class asteroids based on results from reflectance-spectra work.

Affiliated with

Also associated with

No associations

Rating

The Tagish Lake meteorite fall: interpretation of fireball physical characteristics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Tagish Lake meteorite fall: interpretation of fireball physical characteristics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Tagish Lake meteorite fall: interpretation of fireball physical characteristics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1240489