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Prediscovery Activity of New Interstellar Object 3I/ATLAS: A Dynamically-Old Comet?
Quanzhi Ye, Michael S. P. Kelley, Henry H. Hsieh, 2025. ApJL 993, L31.
ZTF: active inward of at least 6.5 au; brightening ~r^-3.8; dust ~5 kg/s (May, ~6 au) to ~30 kg/s (mid-July, ~4 au); steady dust outflow likely began near ~9 au.
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3I/ATLAS
MYSThe mystery article
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Ye, Q., Kelley, M. S. P., & Hsieh, H. H. (2025). Prediscovery Activity of New Interstellar Object 3I/ATLAS: A Dynamically-Old Comet?. ApJL 993, L31. https://doi.org/10.3847/2041-8213/ae147b
@article{ye2025prediscovery,
author = {Ye, Quanzhi and Kelley, Michael S. P. and Hsieh, Henry H.},
title = {Prediscovery Activity of New Interstellar Object 3I/ATLAS: A Dynamically-Old Comet?},
journal = {ApJL 993, L31},
year = {2025},
doi = {10.3847/2041-8213/ae147b},
url = {https://arxiv.org/abs/2509.08792}
}TY - JOUR TI - Prediscovery Activity of New Interstellar Object 3I/ATLAS: A Dynamically-Old Comet? AU - Ye, Quanzhi AU - Kelley, Michael S. P. AU - Hsieh, Henry H. PY - 2025 JO - ApJL 993, L31 DO - 10.3847/2041-8213/ae147b UR - https://arxiv.org/abs/2509.08792 ER -
Ye, Quanzhi et al.. “Prediscovery Activity of New Interstellar Object 3I/ATLAS: A Dynamically-Old Comet?.” ApJL 993, L31 (2025). https://doi.org/10.3847/2041-8213/ae147b.