Display options
Cite
Ishii HA, Bradley JP, Dai ZR, et al. Comparison of comet 81P/Wild 2 dust with interplanetary dust from comets. Science. 2008;319(5862):447-50doi: 10.1126/science.1150683.
Ishii, H. A., Bradley, J. P., Dai, Z. R., Chi, M., Kearsley, A. T., Burchell, M. J., Browning, N. D., & Molster, F. (2008). Comparison of comet 81P/Wild 2 dust with interplanetary dust from comets. Science (New York, N.Y.), 319(5862), 447-50. https://doi.org/10.1126/science.1150683
Ishii, Hope A, et al. "Comparison of comet 81P/Wild 2 dust with interplanetary dust from comets." Science (New York, N.Y.) vol. 319,5862 (2008): 447-50. doi: https://doi.org/10.1126/science.1150683
Ishii HA, Bradley JP, Dai ZR, Chi M, Kearsley AT, Burchell MJ, Browning ND, Molster F. Comparison of comet 81P/Wild 2 dust with interplanetary dust from comets. Science. 2008 Jan 25;319(5862):447-50. doi: 10.1126/science.1150683. PMID: 18218892.
Copy Download .nbib Format: NLM
Share it on

Science. 2008 Jan 25;319(5862):447-50. doi: 10.1126/science.1150683.

Comparison of comet 81P/Wild 2 dust with interplanetary dust from comets.

Science (New York, N.Y.)

Hope A Ishii, John P Bradley, Zu Rong Dai, Miaofang Chi, Anton T Kearsley, Mark J Burchell, Nigel D Browning, Frank Molster

Affiliations

  1. Institute of Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA. [email protected]

PMID: 18218892 DOI: 10.1126/science.1150683

Abstract

The Stardust mission returned the first sample of a known outer solar system body, comet 81P/Wild 2, to Earth. The sample was expected to resemble chondritic porous interplanetary dust particles because many, and possibly all, such particles are derived from comets. Here, we report that the most abundant and most recognizable silicate materials in chondritic porous interplanetary dust particles appear to be absent from the returned sample, indicating that indigenous outer nebula material is probably rare in 81P/Wild 2. Instead, the sample resembles chondritic meteorites from the asteroid belt, composed mostly of inner solar nebula materials. This surprising finding emphasizes the petrogenetic continuum between comets and asteroids and elevates the astrophysical importance of stratospheric chondritic porous interplanetary dust particles as a precious source of the most cosmically primitive astromaterials.

Publication Types