Publication:
No direct coupling between bending of galaxy disc stellar age and light profiles

Thumbnail Image
Files
marino33preprint.pdf (557.58 KB)
Official URL
http://dx.doi.org/10.1093/mnrasl/slv174
Full text at PDC
Publication Date
2016-02-11
Authors
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley
Citations
Google Scholar
Exportar
DC QDC MarcXML RDF MODS METS ORE-ATOM
Research Projects
Organizational Units
Journal Issue
Abstract
We study the stellar properties of 44 face-on spiral galaxies from the Calar Alto Legacy Integral Field Area survey via full spectrum fitting techniques. We compare the age profiles with the surface brightness distribution in order to highlight differences between profile types (type I, exponential profile; and II, down-bending profile). We observe an upturn ('U-shape') in the age profiles for 17 out of these 44 galaxies with reliable stellar information up to their outer parts. This 'U-shape' is not a unique feature for type II galaxies but can be observed in type I as well. These findings suggest that the mechanisms shaping the surface brightness and stellar population distributions are not directly coupled. This upturn in age is only observable in the light-weighted profiles while it flattens out in the mass-weighted profiles. Given recent results on the outer parts of nearby systems and the results presented in this Letter, one of the most plausible explanations for the age upturn is an early formation of the entire disc(~10 Gyr ago) followed by an inside-out quenching of the star formation.
Description
© 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. Artículo firmado por 21 autores. This Letter is based on data from the CALIFA Survey (http://califa.caha.es), funded by the Spanish Ministry of Science (grant ICTS-2009-10), and the Centro Astronómico Hispano-Alemán. This research has been partly supported by the Spanish Ministry of Science and Innovation under grants AYA2011-24728, AYA2013-48226-C3-1-P and Consolider-Ingenio CSD2010-00064; and by the Junta de Andalucía (FQM-108). TRL thanks the support of the Spanish Ministerio de Educación, Cultura y Deporte (FPU fellowship). We acknowledge the usage of the HyperLeda data base (http://leda.univ-lyon1.fr) and SDSS data (http://www.sdss.org/collaboration/citing-sdss/).
UCM subjects
Astrofísica , Astronomía (Física)
Unesco subjects
Keywords
Citation
Abazajian K. N., et al., 2009, ApJS, 182, 543 Bakos J., Trujillo I., Pohlen M., 2008, ApJ, 683, L103 Battaner E., Florido E., Jiménez Vicente J., 2002, A&A, 388, 213 Bernard E. J., et al., 2012, MNRAS, 420, 2625 Bernard E. J., et al., 2015, MNRAS, 446, 2789 Bird J. C., Kazantzidis S., Weinberg D. H., 2012, MNRAS, 420, 913 Bland-Hawthorn J., Vlajić M., Freeman K. C., Draine B. T., 2005, ApJ, 629, 239 Cappellari M., Copin Y., 2003, MNRAS, 342, 345 Cappellari M., Emsellem E., 2004, PASP, 116, 138 Cappellari M., et al., 2011, MNRAS, 413, 813 Erwin P., Beckman J. E., Pohlen M., 2005, ApJ, 626, L81 Falcón Barroso J., et al., 2006, MNRAS, 369, 529 Few C. G., Gibson B. K., Courty S., Michel-Dansac L., Brook C. B., Stinson G. S., 2012, A&A, 547, A63 Freeman K. C., 1970, ApJ, 160, 811 García Benito R., et al., 2015, A&A, 576, A135 González Delgado R. M., et al., 2014, A&A, 562, A47 González Delgado R. M., et al., 2015, A&A, 581, A103 Herpich J., et al., 2015, MNRAS, 448, L99 Husemann B., et al., 2013, A&A, 549, A87 Kennicutt, Jr. R. C., 1989, ApJ, 344, 685 Marino R. A., et al., 2015, ArXiv e-prints Méndez Abreu J., Aguerri J. A. L., Corsini E. M., Simonneau E., 2008, A&A, 478, 353 Minchev I., Famaey B., Quillen A. C., Di Matteo P., Combes F., Vlajić M., Erwin P., Bland-Hawthorn J., 2012, A&A, 548, A126 Minchev I., Martig M., Streich D., Scannapieco C., de Jong R. S., Steinmetz M., 2015, ApJ, 804, L9 Ocvirk P., Pichon C., Lan¸con A., Thiébaut E., 2006a, MNRAS, 365, 74 Ocvirk P., Pichon C., Lan¸con A., Thiébaut E., 2006b, MNRAS, 365, 46 Pérez E., et al., 2013, ApJ, 764, L1 Pohlen M., Trujillo I., 2006, A&A, 454, 759 Radburn-Smith D. J., et al., 2012, ApJ, 753, 138 Roediger J. C., Courteau S., Sánchez Blázquez P., McDonald M., 2012, ApJ, 758, 41 Roškar R., Debattista V. P., Stinson G. S., Quinn T. R., Kaufmann T., Wadsley J., 2008, ApJ, 675, L65 Ruiz Lara T., et al., 2015, A&A, 583, A60 Sánchez S. F., et al., 2012a, A&A, 538, A8 Sánchez S. F., et al., 2012b, A&A, 546, A2 Sánchez S. F., et al., 2014, A&A, 563, A49 Sánchez Blázquez P., Courty S., Gibson B. K., Brook C. B., 2009, MNRAS, 398, 591 Sánchez Blázquez P., Ocvirk P., Gibson B. K., Pérez I., Peletier R. F., 2011, MNRAS, 415, 709 Sánchez Blázquez P., et al., 2014, A&A, 570, A6 Sarzi M., et al., 2006, MNRAS, 366, 1151 Schaye J., 2004, ApJ, 609, 667 Sellwood J. A., Binney J. J., 2002, MNRAS, 336, 785 van den Bosch F. C., 2001, MNRAS, 327, 1334 van der Kruit P. C., 1987, A&A, 173, 59 Vazdekis A., Sánchez Blázquez P., Falcón Barroso J., Cenarro A. J., Beasley M. A., Cardiel N., Gorgas J., Peletier R. F., 2010, MNRAS, 404, 1639 Walcher C. J., et al., 2014, A&A, 569, A1 Yoachim P., Roškar R., Debattista V. P., 2012, ApJ, 752, 97 Younger J. D., Cox T. J., Seth A. C., Hernquist L., 2007, ApJ, 670, 269 Zhang H.-X., Hunter D. A., Elmegreen B. G., Gao Y., Schruba A., 2012, AJ, 143, 47 Zheng Z., et al., 2015, ApJ, 800, 120
URI
https://hdl.handle.net/20.500.14352/24352
Collections
Artículos