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Autor Gil de Paz, Armando |
Documentos disponibles escritos por este autor (189)
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Spitzer Space Telescope Infrared Array Camera imaging provides an opportunity to study all known morphological types of galaxies in the mid-IR at a depth significantly better than ground-based near-infrared and optical images. The goal of this s[...]texto impreso
The morphology of galaxies can be quantified to some degree using a set of scale-invariant parameters. Concentration (C), asymmetry (A), smoothness (S), the Gini index (G), the relative contribution of the brightest pixels to the second-order mo[...]texto impreso
We study the surface brightness profiles of disc galaxies in the 3.6 µm images from the Spitzer Survey of Stellar Structure in Galaxies (S^4G) and K_s-band images from the Near Infrared S0-Sa galaxy Survey (NIRS0S). We particularly connect prope[...]texto impreso
Sollima, A. ; Gil de Paz, Armando ; Martínez Delgado, D. ; Gabany, R. J. ; Gallego Laborda, J. J. ; Hallas, T. | EDP Sciencies | 2010-06Context. The optical ring-like structure detected by Arp (1965) around M81 (commonly referenced as "Arp's loop") represents one of thethe most spectacular features observed in nearby galaxies. Arp's loop is commonly interpreted as a tail resulti[...]texto impreso
Paliya, Vaidehi S. ; Böttcher, M. ; Olmo García, A. ; Dominguez, A. ; Gil de Paz, Armando ; Franckowiak, A. ; Garrappa, S. ; Stein, R. | IOP publishing ltd | 2020-10The recent spatial and temporal coincidence of the blazar TXS 0506+056 with the IceCube-detected neutrino event IC-170922A has opened up a realm of multimessenger astronomy with blazar jets as a plausible site of cosmic-ray acceleration. After T[...]texto impreso
Zamorano Calvo, Jaime ; Díaz-Guerra Viejo, Carlos ; Gallego Maestro, Jesús ; Pérez González, Pablo Guillermo ; Gil de Paz, Armando ; Pascual, S. ; Villar, V. ; Alonso Herrero, A. ; Aragón Salamanca, A. | Universidad Nacional Autónoma México, Instituto Astronomía | 2005We have studied in detail the properties of local active star-forming galaxies from the UCM survey, and in particular their star-formation histories. We have quantified the relative importance of the current episode of star formation in comparis[...]texto impreso
Thilker, David A. ; Bianchi, Luciana ; Schiminovich, David ; Gil de Paz, Armando ; Seibert, Mark ; Madore, Barry F. ; Wyder, Ted ; Rich, R. Michael ; Yi, Sukyoung ; Barlow, Tom ; Conrow, Tim ; Forster, Karl ; Friedman, Peter ; Martin, Chris ; Morrissey, Patrick ; Neff, Susan ; Small, Todd | IOP Publishing | 2010-05-01We have discovered recent star formation in the outermost portion ((1-4) × R_25) of the nearby lenticular (S0) galaxy NGC 404 using Galaxy Evolution Explorer UV imaging. FUV-bright sources are strongly concentrated within the galaxy's H I ring ([...]texto impreso
Gil de Paz, Armando ; Gallego Maestro, Jesús ; Castillo Morales, África ; Pascual Ramírez, Sergio ; Cardiel López, Nicolás | Oxford University Press. | 2020-04We present our analysis of high-resolution (R ? 20 000) GTC/MEGARA integral-field unit spectroscopic observations, obtained during the commissioning run, in the inner region (12.5 arcsec × 11.3 arcsec) of the active galaxy NGC 7469, at spatial s[...]texto impreso
Gil de Paz, Armando ; Sharma, A. ; Chotia, A. ; Marechal, E. ; Huckans, J. H. ; Pedri, P. ; Santos, L. ; Gorceix, O. ; Vernac, L. ; Laburthe-Tolra, B. | American Physical Society | 2013-10-30We report on the realization of quantum magnetism using a degenerate dipolar gas in an optical lattice. Our system implements a lattice model resembling the celebrated t-J model. It is characterized by a nonequilibrium spinor dynamics resulting [...]texto impreso
Barro, G. ; Gallego Maestro, Jesús ; Pérez González, Pablo Guillermo ; Eliche Moral, María del Carmen ; Balcells, M. ; Villar, V. ; Cardiel López, Nicolás ; Cristobal Hornillos, D. ; Gil de Paz, Armando ; Guzmán, R. ; Pelló, R. ; Prieto, M. ; Zamorano Calvo, Jaime | EDP Sciencies | 2009-01Context. The galaxy number counts has been traditionally used to test models of galaxy evolution. However, the origin of significant differences in the shape of number counts at different wavelengths is still unclear. By relating the most remark[...]texto impreso
We have derived the uncertainties to be expected in the derivation of galaxy physical properties (star formation history, age, metallicity, and reddening) when comparing broadband photometry to the predictions of evolutionary synthesis models. W[...]texto impreso
We study the m = 1 distortions (lopsidedness) in the stellar components of 167 nearby galaxies that span a wide range of morphologies and luminosities. We confirm the previous findings of (1) a high incidence of lopsidedness in the stellar distr[...]texto impreso
Carrasco, Esperanza ; Sánchez Blanco, Ernesto ; García Vargas, María Luisa ; Gil de Paz, Armando ; Gallego Maestro, Jesús ; Páez, Gonzalo ; Zamorano, Jaime ; Castro, Jorge | Spie-Int Soc Optical Engineering | 2011MEGARA is a multi-object spectrograph project for the 10.4m Gran Telescopio Canarias with medium to high resolution: R ~ 5600 - 17000. The instrument operates in three modes that cover different sky areas and that can run simultaneously: (1) the[...]texto impreso
Pérez González, Pablo Guillermo ; Zamorano Calvo, Jaime ; Gallego Maestro, Jesús ; Gil de Paz, Armando | EDP Sciences | 2000-02We present Johnson B CCD photometry for the whole sample of galaxies of the Universidad Complutense de Madrid (UCM) Survey Lists I and II. They constitute a well-defined and complete sample of galaxies in the Local Universe with active star form[...]texto impreso
Pérez González, Pablo Guillermo ; Gallego Maestro, Jesús ; Zamorano Calvo, Jaime ; Gil de Paz, Armando | EDP Sciencies | 2001-01We present Johnson B surface photometry for the UCM Survey galaxies. One-dimensional bulge-disk decomposition is attempted, discussing on fitting functions and computational procedures. The results from this decomposition, jointly with concentra[...]