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Postperihelion Optical Low-resolution Spectroscopy of Interstellar Comet 3I/ATLAS

  • Authors: Hideyo Kawakita, Ko Tsujimoto, Yoshiharu Shinnaka, Hitomi Kobayashi, Takafumi Ootsubo, Jun-ichi Watanabe

Hideyo Kawakita et al 2026 The Astrophysical Journal Letters 1000 .

  • Provider: AAS Journals

Caption: Figure 1.

Observed spectra of 3I/ATLAS obtained with LOSA/F2 mounted on the 1.3 m Araki Telescope. The vertical axis is the relative intensity (normalized at 525 nm), and the spectra taken on different dates are vertically offset on a logarithmic scale. For comparison, a sky emission spectrum acquired at the observing site (KAO, Kyoto, Japan) is also plotted for comparison in arbitrary units.

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