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

下载本文档

1
0
约 10页
2017-04-13 发布于江苏
举报
版权申诉

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

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

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

a r X i v : a s t r o - p h / 9 9 0 9 4 2 5 v 1 2 4 S e p 1 9 9 9 AA manuscript no. (will be inserted by hand later) Your thesaurus codes are: 11(11.06.2; 11.09.1; 11.09.2; 11.16.2; 11.19.6) ASTRONOMY AND ASTROPHYSICS February 1, 2008 BVRI-Hα surface photometry of peculiar ring galaxies? I. HRG 2302 M.L.M. Myrrha1, L.P.R. Vaz1, M. Fau?ndez-Abans2, M. de Oliveira-Abans2, and D.S.L. Soares1 1 Departamento de F??sica, ICEX–UFMG, C.P. 702, 30.123-970 Belo Horizonte, MG, Brazil mfaundez@lna.br, mabans@lna.br 2 CNPq/Laborato?rio Nacional de Astrof??sica, C.P. 21, 37.500-000, Itajuba?, MG, Brazil e-mails: leticia@fisica.ufmg.br, lpv@fisica.ufmg.br, mfaundez@lna.br, mabans@lna.br, dsoares@fisica.ufmg.br Received date; accepted date Abstract. Detailed BVRI-Hα photometry has been ob- tained for the ring galaxy HRG 2302. This is probably a still interacting system which shows two principal com- ponents: 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 Hα images and medium dispersion spectra of the three brightest parts of this sys- tem. Analysis of a color-color diagram suggests recent star formation, in agreement with the behavior of interact- ing galaxies with nuclear emission. HRG2302 has been previously classified as a Polar Ring galaxy (Fau?ndez- Abansde Oliveira-Abans 1998a), but we have reclassi- fied 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′ around HRG2302, giving positions and inte- grated standard magnitudes for all of them. Key words: Galaxies: formation – Galaxies: individual: HRG2302 – Galaxies: interactions – Galaxies: peculiar – Galaxies: structure 1. Introduction Among the peculiar galaxies, there are objects which take on the appearance of a smoky ring. These beautiful ob