We use optical integral field spectroscopy (IFS) of nearby supernova (SN) host galaxies (0.005 2.4 Gyr, respectively) than the massive SN Ia hosts (0.04%, 2.01%, and 97.95% in these intervals). We estimate that the low-mass galaxies produce ten times fewer SNe Ia and three times fewer CC SNe than the high-mass group. Therefore the ratio between the
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Además ofrece acceso al repositorio de preprints del IAC: https://research.iac.es/preprints/l
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Nearby supernova host galaxies from the CALIFA Survey. I. Sample, data analysis, and correlation to star-forming regionsGalbany, L. et al.122014
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Nebular and stellar properties of a metal-poor HII galaxy at z= 3.36
We have characterized the physical properties (electron temperature, density and metallicity) of the ionized gas and the ionizing population (age, metallicity and presence of Wolf-Rayet stars) in the Lynx arc, an HII galaxy at z= 3.36. The ultraviolet doublets (i.e. CIII], SiIII] and NIV) imply the existence of a density gradient in this object
Villar-Martín, M. et al.Fecha de publicación:
122004 -
NEOWISE Observations of Near-Earth Objects: Preliminary Results
With the NEOWISE portion of the Wide-field Infrared Survey Explorer (WISE) project, we have carried out a highly uniform survey of the near-Earth object (NEO) population at thermal infrared wavelengths ranging from 3 to 22 μm, allowing us to refine estimates of their numbers, sizes, and albedos. The NEOWISE survey detected NEOs the same way whether
Mainzer, A. et al.Fecha de publicación:
122011 -
Neutral Sodium from Comet Hale-Bopp: A Third Type of Tail
We report on the discovery and analysis of a striking neutral sodium gas tail associated with comet C/1995 O1 Hale-Bopp. Sodium D line emission has been observed at heliocentric distance r
Cremonese, G. et al.Fecha de publicación:
121997 -
Neutron Emission from the Solar Flare of September 07, 2005, Detected by the Solar Neutron Telescope at Sierra Negra, Mexico
The X17.0 solar flare of September 07, 2005 released high-energy neutrons, that were detected by the Solar Neutron Telescope (SNT) at Sierra Negra, Mexico. In two separate and independent studies of this solar neutron event, the energy spectra as a power law was calculated ( Sako, T., et al., 2006, ApJ, 651, 69. Watanabe, K., et al., 2006. ApJ, 636
Valdes-Galicia, J. F. et al.Fecha de publicación:
122011 -
New active galactic nuclei science cases with interferometry. An incomplete preview
Infrared (IR) interferometry has made widely recognised contributions to the way we look at the dusty environment of supermassive black holes on parsec scales. It finally provided direct evidence for orientation-dependent unification of active galaxies, however it also showed that the classical "torus" picture is oversimplified. New scientific
Hönig, S. F. et al.Fecha de publicación:
122018