Molecular abundance ratios as a tracer of accelerated collapse in regions of high mass star formation?

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dc.creatorLintott, C. J.
dc.creatorViti, S.
dc.creatorRawlings, J. M. C.
dc.creatorWilliams, D. A.
dc.creatorHartquist, T. W.
dc.creatorCaselli, P.
dc.creatorZinchenko, I.
dc.creatorMyers, P.
dc.date2004-10-27
dc.date.accessioned2026-07-07T02:15:31Z
dc.date.available2026-07-07T02:15:31Z
dc.descriptionRecent observations suggest that the behaviour of tracer species such as N_2H+ and CS is significantly different in regions of high and low mass star formation. In the latter, N_2H+ is a good tracer of mass, while CS is not. Observations show the reverse to be true in high-mass star formation regions. We use a computational chemical model to show that the abundances of these and other species may be significantly altered by a period of accelerated collapse in high mass star forming regions. We suggest these results provide a potential explanation of the observations, and make predictions for the behaviour of other species.
dc.description5 pages, 3 figures To be published in the Astrophysical Journal
dc.identifierhttps://arxiv.org/abs/astro-ph/0410653
dc.identifierhttp://arxiv.org/abs/astro-ph/0410653
dc.identifierAstrophys.J. 620 (2005) L795
dc.identifierdoi:10.1086/427164
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8435
dc.subjectAstrophysics
dc.titleMolecular abundance ratios as a tracer of accelerated collapse in regions of high mass star formation?
dc.typetext

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