2019/09/16 by Pedro Ruben Rivera-Ortiz, Ary Rodríguez-González, Rivera-Ortiz, Pedro Ruben +7 · 1 citation
Physics and Astronomy · #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Plasma Physics (physics.plasm-ph) #Solar and Stellar Astrophysics (astro-ph.SR) #astro-ph.GA #astro-ph.SR #physics.plasm-ph
paper · pdf · doi:10.48550/arxiv.1909.07517
10 figures, 7 pages
arxiv created 2019/09/16 · arxiv updated 2019/09/18
Orion BN/KL is an example of a poorly understood phenomena in star forming regions involving the close encounter of young stellar objects. The explosive structure, the great variety of molecules observed, the energy involved in the event and the mass of the region suggest a contribution in the chemical diversity of the local interstellar medium. Nevertheless, the frequency and duration of other events like this have not been determined. In this paper, we explore a recent analytic model that takes into account the interaction of a clump with its molecular environment. We show that the widespread kinematic ages of the Orion fingers -- 500 to 4000 years -- is a consequence of the interaction of the explosion debris with the surrounding medium. This model explains satisfactorily the age discrepancy of the Orion fingers, and infers the initial conditions together with the lifetime of the explosion. Moreover, our model can explain why some CO streamers do not have a H2 finger associated.