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| DOI | 10.1093/MNRAS/STT663 | ||||
| Año | 2013 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
We used K-band photometry, maximum rotational velocities derived from Fabry-Perot data and H i observed and predicted masses to study, for the first time, the K band, stellar and baryonic Tully-Fisher relations for galaxies in Hickson compact groups. We compared these relations with the ones defined for galaxies in less dense environments from the Gassendi HAlpha survey of Spirals and from a sample of gas-rich galaxies. We find that most of the Hickson compact group galaxies lie on the K-band Tully-Fisher relation defined by field galaxies with a few low-mass outliers, namely HCG 49b and HCG 96c, which appear to have had strong recent burst of star formation. The stellar Tully-Fisher relation for compact group galaxies presents a similar dispersion to that of the K-band relation, and it has no significant outliers when a proper computation of the stellar mass is done for the strongly star-forming galaxies. The scatter in these relations can be reduced if the gaseous component is taken into account, i.e. if a baryonic Tully-Fisher relation is considered. In order to explain the positions of the galaxies off the K-band Tully-Fisher relation, we favour a scenario in which their luminosities are brightened due to strong star formation or AGN activity. We argue that strong bursts of star formation can affect the B- and K-band luminosities of HCG 49b and HCG 96c and in the case of the latter also AGN activity may affect the K-band magnitude considerably, without affecting their total masses.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Callingham, Thomas M. | Hombre |
Universidad de la Serena - Chile
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| 2 | MENDES-DE OLIVEIRA, CLAUDIA LUCIA | Mujer |
UNIV SAO PAULO - Brasil
Universidade de Sao Paulo - USP - Brasil Universidade de São Paulo - Brasil |
| 3 | Plana, Henri | Hombre |
Univ Estadual Santa Cruz - Brasil
Universidade Estadual de Santa Cruz - Brasil |
| 4 | Santos, W. A. | Hombre |
Aix Marseille Univ - Francia
Laboratoire d'Astrophysique de Marseille - Francia |
| 5 | Epinat, Benoit | Hombre |
Aix Marseille Univ - Francia
Laboratoire d'Astrophysique de Marseille - Francia |
| Fuente |
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| CNPq |
| FAPESP |
| National Aeronautics and Space Administration |
| CNPq/Capes |
| Chilean agency CONICYT through the Programa de Insercion de Capital Humano Avanzado en la Academia |
| EGIDE through an Eiffel scholarship |
| Agradecimiento |
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| We thank S. Boissier for helpful and stimulating discussions about the SED of HCG 49b. ST-F acknowledges the financial support of the Chilean agency CONICYT through the Programa de Insercion de Capital Humano Avanzado en la Academia, under contract 7912010004 and also to FAPESP (doctoral fellowship, under contract 2007/07973-3). ST-F also acknowledges the financial support of EGIDE through an Eiffel scholarship. CMdO acknowledges support from FAPESP (2006/56213-9) and CNPq. HP acknowledges financial support of CNPq (201600/2009-9 and 471254/2008-8). HP thanks CNPq/CAPES for its financial support using the PROCAD project 552236/2011-0. We also acknowledge the use of the HyperLeda data base (http://leda.univ-lyon1.fr). GALEX is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d' Etudes Spatiales of France and the Korean Ministry of Science and Technology. This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. |