Smoke in the "Smoke Rings": ISO Observations of Dust in Collisional Ring Galaxies

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dc.creatorAppleton, P. N.
dc.creatorCharmandaris, V.
dc.creatorHorellou, C.
dc.creatorMirabel, I. F.
dc.creatorLaurent, O.
dc.date1999-12-09
dc.date.accessioned2026-07-07T02:34:55Z
dc.date.available2026-07-07T02:34:55Z
dc.descriptionCollisional ring galaxies probably result from a head-on collision between a compact companion galaxy and a gas-rich disk system. We present a review of the discovery of warm dust in five collisional rings observed by ISO which range in total Far-IR luminosity from 10$^{10}$~ $<$ ~L$_{FIR}$ ~$<$ ~10$^{11}$ L$\odot$. The results show that in most cases, the mid-IR (MIR) flux is often a significant fraction of the total energy budget of star formation activity in these galaxies (at least 10% even in the least powerful cases). We argue that the MIR emission, when combined with optical and radio observations, allows us to build a more complete picture of activity in these collisional systems. Although not as extreme as ULIRGs, these collisional systems provide low-redshift examples of the early effects of galaxy collisions on the ISM and may be relevant to the collisional assembly of galaxy disk components at high redshift.
dc.description8 pages, 5 figures, to be published in the proceedings of ``ISO Surveys of a Dusty Universe'', Ringberg, Germany, November 8-12, 1999
dc.identifierhttps://arxiv.org/abs/astro-ph/9912210
dc.identifierhttp://arxiv.org/abs/astro-ph/9912210
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/15430
dc.subjectAstrophysics
dc.titleSmoke in the "Smoke Rings": ISO Observations of Dust in Collisional Ring Galaxies
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