Chemical inventory of the envelope of the Class I protostar L1551 IRS 5

Open Access

Fig. 9

H¹³CO+/N₂H+ 1–0 line flux ratios for L1551 IRS 5 (red point) compared to the Class I sources in Le Gal et al. (2020) (blue points). Black lines represent error bars. The N₂H⁺ line flux for I-04302 pro vided by Le Gal et al. (2020) is an upper limit.

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