Fig. 10

Download original image
Average FTS spectrum of the HCN(3–2) line observed from 3.7 to 6.7 February in comet C/2022 E3 with simulated profiles. The model in blue assumes a production rate of 3.0 × 1025 molecules s−1 at 0.76 km s−1 on the sunward hemisphere and 1.5 × 1025 molecules s−1 at 0.52 km s−1 on the other hemisphere, as depicted in the upper right. The model in purple uses variable velocities in both hemispheres (see text), with production rates of 3.0 × 1025 molecules s−1 and 1.0 × 1025 molecules s−1, respectively. The mean phase angle is ~45°. The vertical axis is main beam brightness temperature in K, and the horizontal axis is Doppler velocity in the rest frame of the comet.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.