RT Journal Article
T1 Spiral-like star-forming patterns in CALIFA early-type galaxies
A1 Gomes, J. M.
A1 Papaderos, P.
A1 Vílchez, J. M.
A1 Kehrig, C.
A1 Iglesias Páramo, J.
A1 Breda, I.
A1 Lehnert, M. D.
A1 Sánchez, S. F.
A1 Ziegler, B.
A1 dos Reis, S. N.
A1 Bland Hawthorn, J.
A1 Galbany, L.
A1 Bomans, D. J.
A1 Rosales Ortega, F. F.
A1 Walcher, C. J.
A1 García Benito, R.
A1 Márquez, I.
A1 del Olmo, A.
A1 Mollá, M.
A1 Marino, Raffaella Anna
A1 Catalán Torrecilla, Cristina
A1 González Delgado, R. M.
A1 López Sánchez, Á. R.
A1 CALIFA Team, 
AB Based on a combined analysis of SDSS imaging and CALIFA integral field spectroscopy data, we report on the detection of faint (24 <μr mag/□″< 26) star-forming spiral-arm-like features in the periphery of three nearby early-type galaxies (ETGs). These features are of considerable interest because they document the still ongoing inside-out growth of some local ETGs and may add valuable observational insight into the origin and evolution of spiral structure in triaxial stellar systems. A characteristic property of the nebular component in the studied ETGs, classified i+, is a two-radial-zone structure, with the inner zone that displays faint (EW(Hα) ≃ 1 Å) low-ionization nuclear emission-line region (LINER) properties, and the outer one (3 Å <EW(Hα)≲ 20 Å) Hii-region characteristics. This spatial segregation of nebular emission in two physically distinct concentric zones calls for an examination of aperture effects in studies of type i+ ETGs with single-fiber spectroscopic data.
PB EDP Sciencies
SN 1432-0746
YR 2016
FD 2016-01
LK https://hdl.handle.net/20.500.14352/24443
UL https://hdl.handle.net/20.500.14352/24443
LA eng
NO Unión Europea - FP7
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO Ministerio de Economía, Comercio y Empresa (España)
NO Centro Astronómico Hispano-Alemán
NO Fundação para a Ciência e a Tecnologia
NO Fondo Europeo de Desarrollo Regional
NO Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica (Chile)
NO Ministério da Educação e Ciência (Portugal)
NO Millennium Science Initiative
NO Comisión Nacional de Investigación Científica y Tecnológica (Chile)
NO Marie Curie Career Integration Grant
NO Junta de Andalucía
NO Campus de Excelencia Internacional Moncloa
NO National Aeronautics and Space Administration
DS Docta Complutense
RD 7 abr 2025