Publication: The galexis^(4)g uv-ir color-color diagram: catching spiral galaxies away from the blue sequence
Loading...
Official URL
Full text at PDC
Publication Date
2015-02-10
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing
Abstract
We obtained GALEX FUV, NUV, and Spitzer/ IRAC 3.6 μm photometry for > 2000 galaxies, available for 90% of the S^(4)G sample. We find a very tight. GALEX blue sequence (GBS) in the (FUV- NUV) versus (NUV-[3.6]) color- color diagram, which is populated by irregular and spiral galaxies, and is mainly driven by changes in the formation timescale (tau) and a degeneracy between (tau) and dust reddening. The tightness of the GBS provides an unprecedented way of identifying star- forming galaxies and objects that are just evolving to (or from) what we call the. GALEX green valley (GGV). At the red end of the GBS, at (NUV-[3.6]) > 5, we find a wider. GALEX red sequence (GRS) mostly populated by E/ S0 galaxies that has a perpendicular slope to that of the GBS and of the optical red sequence. We find no such dichotomy in terms of stellar mass (measured by M_([3.6])) since both massive (M. > 10^(11)M.) blue- and red- sequence galaxies are identified. The type that is proportionally more often found in the GGV is the S0- Sa's, and most of these are located in high- density environments. We discuss evolutionary models of galaxies that show a rapid transition from the blue to the red sequence on a timescale of 10^(8) yr.
Description
© 2015. The American Astronomical Society. All rights reserved. The NRAO is a facility of the NSF operated under cooperative agreement by Associated Universities, Inc. We acknowledge financial support to the DAGAL network from the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme FP7/2007-2013/ under REA grant agreement number PITN-GA-2011-289313. J.H.K. acknowledges financial support from the Spanish MINECO under grant number AYA2013-41243-P. A.G.d.P. and J.G. acknowledge financial support under grant number AYA2012-30717.
UCM subjects
Unesco subjects
Keywords
Citation
Boissier, S., & Prantzos, N. 2000, MNRAS, 312, 398
Boselli, A., Boissier, S., Cortese, L., et al. 2006, ApJ, 651, 811
Boselli, A., Cortese, L., Deharveng, J. M., et al. 2005, ApJL, 629, L29
Bresolin, F. 2013, ApJL, 772, L23
Calzetti, D., Kinney, A. L., & Storchi-Bergmann, T. 1994, ApJ, 429, 582
Cappellari, M., McDermid, R. M., Alatalo, K., et al. 2013, MNRAS, 432, 1862
Faber, S. M., Willmer, C. N. A., Wolf, C., et al. 2007, ApJ, 665, 265
Gavazzi, G., Boselli, A., Donati, A., Franzetti, P., & Scodeggio, M. 2003, A&A, 400, 451
Gil de Paz, A., Boissier, S., Madore, B. F., et al. 2007, ApJS, 173, 185
Hernández Pérez, F., & Bruzual, G. 2014, MNRAS, 444, 2571
Kannappan, S. J., Guie, J. M., & Baker, A. J. 2009, AJ, 138, 579
Kawata, D., & Mulchaey, J. S. 2008, ApJL, 672, L103
Knapen, J. H., Erroz Ferrer, S., Roa, J., et al. 2014, A&A, 569, A91
Lagos, C. d. P., Davis, T. A., Lacey, C. G., et al. 2014, MNRAS, 443, 1002
Laine, J., Laurikainen, E., Salo, H., et al. 2014, MNRAS, 441, 1992
Laurikainen, E., Salo, H., Buta, R., et al. 2007, in IAU Symp. 235, Galaxy Evolution Across the Hubble Time, ed. F. Combes, & J. Palouš (Cambridge: Cambridge Univ. Press), 36
Martin, D. C., Fanson, J., Schiminovich, D., et al. 2005, ApJL, 619, L1
Meidt, S. E., Schinnerer, E., van de Ven, G., et al. 2014, ApJ, 788, 144
Muñoz Mateos, J. C., Boissier, S., Gil de Paz, A., et al. 2011, ApJ, 731, 10
Paturel, G., Petit, C., Prugniel, P., et al. 2003, A&A, 412, 45
Sheth, K., Regan, M., Hinz, J. L., Gil de Paz, A., & Menéndez Delmestre, K. 2010, PASP, 122, 1397
Stott, J. P., Pimbblet, K. A., Edge, A. C., Smith, G. P., & Wardlow, J. L. 2009, MNRAS, 394, 2098
Strateva, I., Ivezić, Ž., Knapp, G. R., et al. 2001, AJ, 122, 1861
Thilker, D. A., Bianchi, L., Schiminovich, D., et al. 2010, ApJL, 714, L171
Wyder, T. K., Martin, D. C., Schiminovich, D., et al. 2007, ApJS, 173, 293
Zaritsky, D., Gil de Paz, A., & Bouquin, A. Y. K. 2014, ApJL, 780, L1
Zaritsky, D., Gil de Paz, A., & Bouquin, A. Y. K. 2015, MNRAS, 446, 2030