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Contreras, C. Sánchez ; Le Mignant, D. ; Sahai, R. ; Gil de Paz, Armando ; Morris, M. | American Astronomical Society | 2007-02-20We present high angular resolution images of the post-AGB nebula IRAS 18276-1431 (also known as OH 17.7-2.0) obtained with the Keck II adaptive optics (AO) system in its natural guide star (NGS) mode in the K_P, L_P, and M_S near-infrared bands.[...]texto impreso
The ultraviolet-to-radio continuum spectral energy distributions are presented for all 75 galaxies in the Spitzer Infrared Nearby Galaxies Survey (SINGS). A principal component analysis of the sample shows that most of the sample's spectral vari[...]texto impreso
Gil de Paz, Armando ; Catalán Torrecilla, Cristina ; Castillo Morales, África ; Marino, Raffaella Anna ; otros, ... | American Astronomical Society | 2016-07-20This paper aims to provide aperture corrections for emission lines in a sample of spiral galaxies from the Calar Alto Legacy Integral Field Area Survey (CALIFA) database. In particular, we explore the behavior of the log([O III] ?5007/H?)/([N II[...]texto impreso
Sahai, R. ; Findeisen, K. ; Gil de Paz, Armando ; Sánchez Contreras, C. | American Astronomical Society | 2008-12-20The search for binarity in AGB stars is of critical importance for our understanding of how planetary nebulae acquire the dazzling variety of aspherical shapes which characterizes this class. However, detecting binary companions in such stars ha[...]texto impreso
Dust attenuation affects nearly all observational aspects of galaxy evolution, yet very little is known about the form of the dust-attenuation law in the distant universe. Here, we model the spectral energy distributions of galaxies at z ~ 1.5–3[...]texto impreso
Breaks in the radial luminosity profiles of galaxies have until now been mostly studied averaged over disks. Here, we study separately breaks in thin and thick disks in 70 edge-on galaxies using imaging from the Spitzer Survey of Stellar Structu[...]texto impreso
We present Submillimeter Array [C II] 158 ?m and Karl G. Jansky Very Large Array 12^CO(1-0) line emission maps for the bright, lensed, submillimeter source at z = 5.2430 behind A 773: HLSJ091828.6+514223 (HLS0918). We combine these measurements [...]texto impreso
We combine high-resolution Hubble Space Telescope/WFC3 images with multi-wavelength photometry to track the evolution of structure and activity of massive (M_*> 10^10 M_?) galaxies at redshifts z = 1.4-3 in two fields of the Cosmic Assembly Nea[...]texto impreso
Pérez González, Pablo Guillermo ; Cardiel López, Nicolás ; Eliche Moral, María del Carmen ; otros, ... | American Astronomical Society | 2016-04-01We present Keck I MOSFIRE spectroscopy in the Y and H bands of GDN-8231, a massive, compact, star-forming galaxy at a redshift of z ~ 1.7. Its spectrum reveals both H? and [Nii] emission lines and strong Balmer absorption lines. The H? and Spitz[...]texto impreso
We present the results from the analysis of optical spectra of 31 H?-selected regions in the extended UV (XUV) disks of M83 (NGC 5236) and NGC 4625 recently discovered by GALEX. The spectra were obtained using IMACS at the Las Campanas Observato[...]texto impreso
Studying giant star-forming clumps in distant galaxies is important to understand galaxy formation and evolution. At present, however, observers and theorists have not reached a consensus on whether the observed "clumps" in distant galaxies are [...]texto impreso
Gil de Paz, Armando ; Silich, S. A. ; Madore, B. F. ; Sánchez Contreras, C. ; Zamorano Calvo, Jaime ; Gallego Maestro, Jesús | American Astronomical Society | 2002-07-10We have mapped the CO^12 J = 1-0 and J = 2-1 line emission in Markarian 86, one of the most metal-deficient blue compact dwarf galaxies so far detected in CO^12. The CO^12 emission is distributed in a horseshoe-like structure that follows the lo[...]texto impreso
The total ultraviolet (UV) flux (from 1412 to 2718 Å) of M101 is compared on a pixel-to-pixel basis with the total far-infrared (FIR) flux (from 60 to 170 ?m) using the maps of the galaxy taken by the Galaxy Evolution Explorer (GALEX) in the nea[...]texto impreso
Using a complete sample of ~300 star-forming galaxies within 11 Mpc of the Milky Way, we evaluate the consistency between star formation rates (SFRs) inferred from the far ultraviolet (FUV) non-ionizing continuum and H? nebular emission, assumin[...]texto impreso
Salvador Solé, Eduard ; Manrique, Alberto ; Guzmán, Rafael ; Rodríguez Espinosa, José Miguel ; Gallego Maestro, Jesús ; Herrero, Artemio ; Mas-Hesse, J. Miguel ; Marín Franch, Antonio | American Astronomical Society | 2017-01-01We combine observational data on a dozen independent cosmic properties at high-z with the information on reionization drawn from the spectra of distant luminous sources and the cosmic microwave background (CMB) to constrain the interconnected ev[...]
