Anatomy of L1489 IRS with NOEMA I

We performed a 3mm line survey at high spatial and high spectral resolution using the NOEMA interferometer and the IRAM-30m telescope. For the data analysis, we applied and compared two methods: a streamline model and the new python package TIPSY. We present here the ten brightest lines of our survey, in which we identified a new ~3000au long streamer in HC_3_N, C_2_H, and c-C_3_H_2_ emission, likely associated with more localized accretion shocks probed in SO.

In addition, two ~10000 au bubbles are seen with the dense molecular tracers HCO+, CS, and HCN around the YSO. We retrieve previously identified structures, like an outflow in HCO+ and another streamer in C_2_H. Additionally, potential indicators of a second outflow appear in CS and HCN emission, but its nature remains to be confirmed.