Chemical differentiation in a prestellar core traces non-uniform illumination

12 Jul 2016 Spezzano Silvia Bizzocchi Luca Caselli Paola Harju Jorma Brünken Sandra

Dense cloud cores present chemical differentiation due to the different distribution of C-bearing and N-bearing molecules, the latter being less affected by freeze-out onto dust grains. In this letter we show that two C-bearing molecules, CH$_3$OH and $c$-C$_3$H$_2$, present a strikingly different (complementary) morphology while showing the same kinematics toward the prestellar core L1544... (read more)

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