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New gravity field of comet 67P/C-G based on Rosetta's Doppler and optical data
- Publication Year :
- 2024
-
Abstract
- We provide a new gravity field of Comet 67P-C/G up to degree 4. We detect mass heterogeneity in the comet nucleus. The loss of mass is restimated at 0.28\% of the comet's total mass (3 times larger than previous estimate). Comparison of the gravity field between pre- and post-perihelion allowed us to measure a shift in the comet's center of gravity of 35 m northward, attributed to ice sublimation process.
- Subjects :
- Astrophysics - Earth and Planetary Astrophysics
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2409.02692
- Document Type :
- Working Paper