The jets launched by actively accreting black holes can generate massive outflows in galaxies, which could suppress or enhance star formation by rarefying or compressing clouds of molecular gas. To study the stability of such jet-impacted clouds, we performed astrochemical, thermally balanced, radiative transfer modelling of the CO and HCO⁺ emission of the galaxy IC 5063. We found that jet-related mechanical heating and cosmic rays contribute to the molecular gas heating rate and could even individually sustain it. Clouds excited by these mechanisms have temperatures and densities reflecting an order-of-magnitude increase in their internal pressure. Variations of their external pressure, deduced from [S ii] and [N ii] ionized gas emission, further reveal that some clouds are undergoing rarefaction and others compression. Our work shows a new viewpoint on plausible links between galactic outflows and star formation conditions: that of observable pressure gradients. It also emphasizes the role of cosmic rays in contributing to these gradients.

由活跃吸积的黑洞发射的喷流可以在星系中产生大量的外流，这可以通过稀薄或压缩分子气体云来抑制或增强恒星的形成。为了研究这种受射流影响的云的稳定性，我们对星系 IC 5063 的 CO 和 HCO ⁺排放进行了天体化学、热平衡、辐射传输建模。我们发现与射流相关的机械加热和宇宙射线有助于分子气体加热速率，甚至可以单独维持它。由这些机制激发的云的温度和密度反映了其内部压力的数量级增加。从 [S ii ] 和 [N  ii推导出来的它们的外部压力的变化 ] 电离气体排放，进一步揭示了一些云正在经历稀薄和其他压缩。我们的工作展示了关于银河外流与恒星形成条件之间可能联系的新观点：可观测压力梯度。它还强调了宇宙射线在促成这些梯度中的作用。