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So no detectable gas. (The positioning of the label in fig 2 indicating the band where CN should appear is unfortunate. At a casual glance it looks like the hot pixel there is a signal. Given that they took 6 spectra it is surprising they did not remove them)
Water detected and possible large icy grains, ApJL preprint: https://arxiv.org/abs/2508.04675
Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)
https://arxiv.org/abs/2507.13409
Alex.
I love the 112 authors not listed. How many words is that per author?
Is this going to happen whenever the LSST consortium publish?
An ApJL preprint on archive today “JWST detection of a carbon dioxide dominated gas coma surrounding interstellar object 3I/ATLAS”
Says the coma is CO2 dominated, with enhanced outgassing in the sunward direction, and the presence of H2O, CO, OCS, water ice and dust. The coma CO2/H2O mixing ratio is among the highest ever observed in a comet – the authors discuss why this might be the case depending on its origins.
I love the 112 authors not listed. How many words is that per author?
Is this going to happen whenever the LSST consortium publish?
Astronomy is now reaching the point particle physics reached about fifty years ago.
Big collaborations collecting vast amount of data which requires enormous amounts of computation to convert that data to information.
It is getting that way in biology. I’m a co-author on a few genetics papers published by the Flybase Consortium which have numerous authors, though admittedly not over a hundred.
Welcome to the new world.
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