BVRI-Halpha surface photometry of peculiar ring galaxies. I. HRG 2302

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dc.creatorMyrrha, M. L. M.
dc.creatorVaz, L. P. R.
dc.creatorFaúndez-Abans, M.
dc.creatorde Oliveira-Abans, M.
dc.creatorSoares, D. S. L.
dc.date1999-09-24
dc.date.accessioned2026-07-07T02:33:28Z
dc.date.available2026-07-07T02:33:28Z
dc.descriptionDetailed BVRI-Halpha photometry has been obtained for the ring galaxy HRG 2302. This is probably a still interacting system which shows two principal components: the target, which is a knotted ringed-disk, and the intruder, an elongated galaxy with two substructures probably caused by the interaction. The existence of H II emission regions is suggested by Halpha images and medium dispersion spectra of the three brightest parts of this system. Analysis of a color-color diagram suggests recent star formation, in agreement with the behavior of interacting galaxies with nuclear emission. HRG 2302 has been previously classified as a Polar Ring galaxy (Faundez-Abans & de Oliveira-Abans 1998a), but we have reclassified it as Elliptical-Knotted, based on the morphological substructures found. This work reveals, for the first time, the existence of at least 15 fainter galaxies in the field within ~4 arcmin around HRG 2302, giving positions and integrated standard magnitudes for all of them.
dc.description10 pages, accepted by Astronomy and Astrophysics
dc.identifierhttps://arxiv.org/abs/astro-ph/9909425
dc.identifierhttp://arxiv.org/abs/astro-ph/9909425
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14855
dc.subjectAstrophysics
dc.titleBVRI-Halpha surface photometry of peculiar ring galaxies. I. HRG 2302
dc.typetext

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