Publication: Stellar populations in local star-forming galaxies - II. Recent star formation properties and stellar masses
Loading...
Official URL
Full text at PDC
Publication Date
2003-01-11
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley
Abstract
We present the integrated properties of the stellar populations in the Universidad Complutense de Madrid (UCM) Survey galaxies. Applying the techniques described in the first paper of this series, we derive ages, burst masses and metallicities of the newly formed stars in our sample galaxies. The population of young stars is responsible for the Halpha emission used to detect the objects in the UCM Survey. We also infer total stellar masses and star formation rates in a consistent way taking into account the evolutionary history of each galaxy. We find that an average UCM galaxy has a total stellar mass of ∼10^10 M_⨀, of which about 5 per cent was formed in an instantaneous burst that occurred about 5 Myr ago, and subsolar metallicity. Less than 10 per cent of the sample shows massive starbursts involving more than half of the total mass of the galaxy. Several correlations are found among the derived properties. The burst strength is correlated with the extinction and with the integrated optical colours for galaxies with low obscuration. The current star formation rate is correlated with the gas content. A stellar mass-metallicity relation is also found. Our analysis indicates that the UCM Survey galaxies span a broad range in properties between those of galaxies completely dominated by current/recent star formation and those of normal quiescent spirals. We also find evidence indicating that star formation in the local Universe is dominated by galaxies considerably less massive than L^*.
Description
© 2003 RAS. This research has made use of the NASA/IPAC Extragalactic Database (NED) and the NASA/IPAC Infrared Science Archive, which are operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This publication has also made use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation. PGPG wishes to acknowledge the Spanish Ministry of Education and Culture for the receipt of a Formación de Profesorado Universitario fellowship. AGdP acknowledges financial support from NASA through a Long Term Space Astrophysics grant to B. F. Madore. During the course of this work AAH has been supported by the National Aeronautics and Space Administration grant NAG 5-3042 through the University of Arizona and Contract 960785 through the Jet Propulsion Laboratory. AAS acknowledges generous financial support from the Royal Society. We are grateful to the anonymous referee for her/his helpful comments and suggestions. The present work was supported by the Spanish Programa Nacional de Astronomía y Astrofísica under grant AYA2000-1790.
UCM subjects
Unesco subjects
Keywords
Citation
Abraham R. G., Ellis R. S., Fabian A. C., Tanvir N. R., Glazebrook K., 1999, MNRAS, 303, 641
Alonso O., García Dabó C. E., Zamorano J., Gallego J., Rego M., 1999, ApJS, 122, 415
Alonso Herrero A., Aragón Salamanca A., Zamorano J., Rego M., 1996, MNRAS, 278, 417
Aragón Salamanca A., Alonso Herrero A., Gallego J., García Dabó C. E., Gil de Paz A., Pérez González P., Zamorano J., 2002, AJ, submitted
Bell E. F., de Jong R. S., 2000, MNRAS, 312, 497
Bell E. F., de Jong R. S., 2001, ApJ, 550, 212
Bolzonella M., Miralles J.-M., Pelló R., 2000, A&A, 363, 476
Boselli A., Gavazzi G., Lequeux J., Buat V., Casoli F., Dickey J., Donas J., 1997, A&A, 327, 522
Brinchmann J., Ellis R. S., 2000, ApJ, 536, L77
Calzetti D., 1997, AJ, 113, 162
Calzetti D., Armus L., Bohlin R. C., Kinney A. L., Koornneef J., Storchi-Bergmann T., 2000, ApJ, 533, 682 (CALZ00)
Charlot S., Fall S. M., 2000, ApJ, 539, 718 (CF00)
Cohen J. G., Blandford R., Hogg D. W., Pahre M. A., Shopbell P. L., 1999, ApJ, 512, 30
Cole S. et al., 2001, MNRAS, 326, 255
Cowie L. L., Songaila A., Hu E. M., Cohen J. G., 1996, AJ, 112, 839
Davidge T. J., 1992, AJ, 103, 1512
de Jong R. S., 1996, A&A, 313, 377
de Jong R. S., van der Kruit P. C., 1994, A&AS, 106, 451
Drory N., Bender R., Snigula J., Feulner G., Hopp U., Maraston C., Hill G. J., de Oliveira C. M., 2001, ApJ, 562, L111
Faber S. M., Gallagher J. S., 1979, ARA&A, 17, 135
Fioc M., Rocca-Volmerange B., 1999, A&A, 351, 869
Fukugita M., Shimasaku K., Ichikawa T., 1995, PASP, 107, 945
Gallego J., 1995, PhD thesis, Univ. Complutense de Madrid
Gallego J., Zamorano J., Rego M., Alonso O., Vitores A. G., 1996, A&AS, 120, 323
Gil de Paz A., Madore B. F., 2002, AJ, 123, 1864
Gil de Paz A., Aragón Salamanca A., Gallego J., Alonso Herrero A., Zamorano J., Kauffmann G., 2000a, MNRAS, 316, 357 (GdP00)
Gil de Paz A., Zamorano J., Gallego J., 2000b, A&A, 361, 465
Gil de Paz A., Zamorano J., Gallego J., Domínguez F. D., 2000, A&AS, 145, 377
Gordon K. D., Calzetti D., Witt A. N., 1997, ApJ, 487, 625
Graham A. W., 2002, MNRAS, 334, 721
Guzmán R., Gallego J., Koo D. C., Phillips A. C., Lowenthal J. D., Faber S. M., Illingworth G. D., Vogt N. P., 1997, ApJ, 489, 559
Huchtmeier W. K., Richter O.-G., 1989, A General Catalog of H I Observations of Galaxies, The Reference Catalog, XIX. Springer-Verlag, Berlin, p. 350
Jarrett T. H., Chester T., Cutri R., Schneider S., Skrutskie M., Huchra J. P., 2000, AJ, 119, 2498
Kauffmann G. et al., 2002, MNRAS, in press (astro-ph/0204055)
Kennicutt R. C., 1983, ApJ, 272, 54
Kennicutt R. C., 1992, ApJ, 388, 310
Kennicutt R. C., 1998a, ARA&A, 36, 189
Kennicutt R. C., 1998b, ApJ, 498, 541
Kochanek C. S. et al., 2001, ApJ, 560, 566
Krüger H., Fritze-v. Alvensleben U., Loose H.-H., 1995, A&A, 303, 41
Kunth D., Östlin G., 2000, A&AR, 10, 1
Leitherer C. et al., 1999, ApJS, 123, 3 (SB99)
Loveday J., 2000, MNRAS, 312, 557
Melbourne J., Salzer J. J., 2002, AJ, 123, 2302
Miller G. E., Scalo J. M., 1979, ApJS, 41, 513 (MSCA)
Moriondo G., Giovanardi C., Hunt L. K., 1998, A&A, 339, 409
Papovich C., Dickinson M., Ferguson H. C., 2001, ApJ, 559, 620
Pérez González P. G., Zamorano J., Gallego J., Gil de Paz A., 2000, A&AS, 141, 409
Pérez González P. G., Gallego J., Zamorano J., Gil de Paz A., 2001, A&A, 365, 370
Pérez González P. G., Gil de Paz A., Zamorano J., Gallego J., Alonso Herrero A., Aragón Salamanca A., 2003a, MNRAS, 338, 508 (Paper I, this issue)
Pérez González P. G., Zamorano J., Gallego J., Aragón Salamanca A., Gil de Paz A., 2003b, ApJ, in press
Pisano D. J., Kobulnicky H. A., Guzmán R., Gallego J., Bershady M. A., 2001, AJ, 122, 1194
Rix H., Rieke M. J., 1993, ApJ, 418, 123
Roberts M. S., 1975, in Sandage A., Sandage M., Kristian J., eds, Galaxies and the Universe. Univ. of Chicago Press, Chicago, p. 309
Salpeter E. E., 1955, ApJ, 121, 161 (SALP)
Scalo J. M., 1986, Fundam. Cosmic Phys., 11, 1 (SCA)
Schmidt M., 1959, ApJ, 129, 243
Shapley A. E., Steidel C. C., Adelberger K. L., Dickinson M., Giavalisco M., Pettini M., 2001, ApJ, 562, 95
Strateva I. et al., 2001, AJ, 122, 1861
Takase B., Miyauchi-Isobe N., 1990, Publ. Natl. Astron. Obs. Jpn., 1, 181
Telles J. E., 1995, PhD thesis, Univ. Cambridge
Vitores A. G., Zamorano J., Rego M., Alonso O., Gallego J., 1996, A&AS, 118, 7
Worthey G., 1994, ApJS, 95, 107
Zamorano J., Rego M., Gallego J. G., Vitores A. G., González Riestra R., Rodríguez Caderot G., 1994, ApJS, 95, 387
Zamorano J., Gallego J., Rego M., Vitores A. G., Alonso O., 1996, ApJS, 105, 343