RT Journal Article T1 Discovery of an emitting ring in the seyfert 1 galaxy UCM 2329+2500 A1 Gallego Maestro, Jesús A1 Zamorano Calvo, Jaime A1 Rego Fernández, Manuel A1 Vitores, A. G. AB We analyze a rather interesting galaxy discovered during the UCM survey for new Hα emission-line galaxies. The new galaxy UCM 2329+2500 presents a compact core that hosts a Seyfert 1 nucleus. The spectrum of the Seyfert nucleus presents broad components (FWHM=8000 km s^-1) and asymmetric profiles at the Balmer lines showing a secondary peak more apparent on the Hβ line and also observed in the Hα deblended line. Only traces of profile variability have been detected during spectroscopic observations at four different dates spanning 29 months. Eight kpc away from the nucleus, a ring-like structure that surrounds the core is observed. A long slit spectrum at PA 45° has revealed emission lines coming from both sides of the ring. The emission detected is prominent at a condensation observed on the red image. Star formation is the most plausible explanation. A high obscuration is also observed. All this information is coherent with a galactic encounter scenario. PB EDP Sciencies SN 0004-6361 YR 1994 FD 1994-10 LK https://hdl.handle.net/20.500.14352/59818 UL https://hdl.handle.net/20.500.14352/59818 LA eng NO Chen K., Halpern J.P., 1989, ApJ, 344, 115Colina L., Lípari S., Macchetto F., 1991, ApJ. 382, L63Gaskell C.M., 1988, in Active Galactic Nuclei, ed. H.R. Miller & P.J. Witta (Berlin:Springer), 61Halpern J.P., 1990, ApJ Letters 365, L51-L54 Kennicutt R.C. Jr., 1992, ApJ, 388, 310Oke J.B., 1987, in Superluminal Radio Sources, ed. J.A. Zensus and T.J. Pearson, Cambridge Univ. Press, 267Peterson B.M., Meyers K.A., Capriotti E.R., et al. 1985, ApJ, 292, 164 Rego M, Cordero Gracia M., Zamorano J., et al. 1993, ARA&A, 19, 137Ress M.J., 1984, ARA&A, 19, 137Rodríguez Espinosa J.M., Stanga R.M., 1990, ApJ 365, 502Stanga R.M., Rodríguez Espinosa J.M., Mannucci F., 1991, ApJ, 379, 592Smith H.E., 1980, ApJ, 241, Ll37Stockton A., 1990, in Dynamics and Interactions of Galaxies, ed. R. Wielen Heidelberg: Springer-VerlagStockton A., Farnham T., 1991, ApJ, 371, 525Storchi-Bergmann T., Baldwin J.A., Wilson A.S., 1993, ApJLetters, 410, L11Weil M.L., Hernquist L., 1993, ApJ, 405, 142Zamorano J., Rego M., Gallego J., et al. 1994, ApJS accepted NO © European Southern Observatory. This work was supported in part by the Spanish "Programa Sectorial de Promoción General del Conocimiento" un­der grant PB89 124. Based on observations collected at the German Spanish Astronomical Center, Calar Alto, Spain and at the Spanish Observatorio del Roque de Los Muchachos of the Instituto de Astrofísica de Canarias, La Palma, Spain. NO Programa Sectorial de Promoción General del Conocimiento (MEC), España NO Ministerio de Educación y Ciencia (MEC), España DS Docta Complutense RD 16 jul 2024