Zobrazeno 1 - 10
of 456
pro vyhledávání: '"Cardiel, N"'
BL Lac objects are a class of jetted active galactic nuclei that do not exhibit or have weak emission lines in their optical spectra. Recently, the first $\gamma$-ray emitting BL Lac beyond $z=3$, 4FGL J1219.0 +3653 (hereafter J1219), was identified,
Externí odkaz:
http://arxiv.org/abs/2410.10204
Autor:
Barquín-González, L., Mateos, S., Carrera, F. J., Ordovás-Pascual, I., Alonso-Herrero, A., Caccianiga, A., Cardiel, N., Corral, A., Domínguez, R. M., García-Bernete, I., Mountrichas, G., Severgnini, P.
Publikováno v:
A&A 687, A159 (2024)
The optical spectroscopic classification of active galactic nuclei (AGN) into type 1 and type 2 can be understood in the frame of the AGN unification models. However, it remains unclear which physical properties are driving the classification into in
Externí odkaz:
http://arxiv.org/abs/2404.19544
Autor:
Muñoz, L. Hermosa, Cazzoli, S., Márquez, I., Masegosa, J., Chamorro-Cazorla, M., de Paz, A. Gil, Castillo-Morales, Á., Gallego, J., Carrasco, E., Iglesias-Páramo, J., García-Vargas, M. L., Gómez-Álvarez, P., Pascual, S., Pérez-Calpena, A., Cardiel, N.
Publikováno v:
A&A 683, A43 (2024)
Outflows are believed to be ubiquitous in all AGNs, although their presence in low luminosity AGNs, in particular, for LINERs, has only started to be explored. Their properties (geometry, mass and energetics) are still far from being properly charact
Externí odkaz:
http://arxiv.org/abs/2311.12552
Autor:
Carrasco, J. M., Cardiel, N., Masana, E., Zamorano, J., Pascual, S., de Miguel, A. Sánchez, González, R., Izquierdo, J.
Recent works have made strong efforts to produce standardised photometry in RGB bands. For this purpose, we carefully defined the transmissivity curves of RGB bands and defined a set of standard sources using the photometric information present in Ga
Externí odkaz:
http://arxiv.org/abs/2303.14147
Autor:
Mollá, M., García-Vargas, M. L., Millán-Irigoyen, I., Cardiel, N., Carrasco, E., de Paz, A. Gil, Berlanas, S. R., Gómez-Álvarez, P.
MEGARA is the optical integral field and multi-object spectrograph at the Gran Telescopio Canarias. We have created MEGASTAR, an empirical library of stellar spectra obtained using MEGARA at high resolution $R=20\,000$ (FWHM), available in two wavele
Externí odkaz:
http://arxiv.org/abs/2212.10971
Autor:
Fernández-Arenas, D., Carrasco, E., Terlevich, R., Terlevich, E., Amorín, R., Bresolin, F., Chávez, R., González-Morán, A. L., Rosa-González, D., Mayya, Y. D., Vega, O., Zaragoza-Cardiel, J., Méndez-Abreu, J., Izazaga-Pérez, R., de Paz, A. Gil, Gallego, J., Iglesias-Páramo, J., García-Vargas, M. L., Gómez-Alvarez, P., Castillo-Morales, A., Cardiel, N., Pascual, S., Pérez-Calpena, A.
We present a spatially resolved spectroscopic study for the metal poor HII galaxy J084220+115000 using MEGARA Integral Field Unit observations at the Gran Telescopio Canarias. We estimated the gas metallicity using the direct method for oxygen, nitro
Externí odkaz:
http://arxiv.org/abs/2211.06021
Autor:
Chamorro-Cazorla, M., de Paz, A. Gil, Castillo-Morales, A., Gallego, J., Carrasco, E., Iglesias-Páramo, J., García-Vargas, M. L., Pascual, S., Cardiel, N., Catalán-Torrecilla, C., Zamorano, J., Sánchez-Blázquez, P., Pérez-Calpena, A., Gómez-Álvarez, P., Jiménez-Vicente, J.
Publikováno v:
A&A 670, A117 (2023)
The main interest of the Science Team for the exploitation of the MEGARA instrument at the 10.4m Gran Telescopio Canarias (GTC hereafter) is devoted to the study of nearby galaxies, with focus on the research of the history of star formation, and che
Externí odkaz:
http://arxiv.org/abs/2211.02969
Autor:
Garzón, F., Balcells, M., Gallego, J., Gry, C., Guzmán, R., Hammersley, P., Herrero, A., Muñoz-Tuñón, C., Pelló, R., Prieto, M., Bourrec, É., Cabello, C., Cardiel, N., González-Fernández, C., Laporte, N., Milliard, B., Pascual, S., Patrick, L. R., Patrón, J., Ramírez-Alegría, S., Streblyanska, A.
Publikováno v:
A&A 667, A107 (2022)
We present EMIR, a powerful near-infrared (NIR) camera and multi-object spectrograph (MOS) installed at the Nasmyth focus of the 10.4 m GTC. EMIR was commissioned in mid-2016 and is offered as a common-user instrument. It provides spectral coverage o
Externí odkaz:
http://arxiv.org/abs/2209.15395
Autor:
Herrero, A., Berlanas, S. R., de Paz, A. Gil, Comerón, F., Puls, J., Alegría, S. Ramírez, García, M., Lennon, D. J., Najarro, F., Simón-Díaz, S., Urbaneja, M. A., Gallego, J., Carrasco, E., Iglesias, J., Cedazo, R., Vargas, M. L. García, Castillo-Morales, A., Pascual, S., Cardiel, N., Pérez-Calpena, A., Gómez-Alvarez, P., Martínez-Delgado, I.
2MASS J20395358+4222505 is an obscured early B supergiant near the massive OB star association Cyg OB2. Despite its bright infrared magnitude (K$_{s}$=5.82) it has remained largely ignored because of its dim optical magnitude (B=16.63, V=13.68). In a
Externí odkaz:
http://arxiv.org/abs/2202.11806
Autor:
Cabello, C., Gallego, J., Cardiel, N., Pascual, S., Guzmán, R., Herrero, A., Manrique, A., Marín-Franch, A., Mas-Hesse, J. M., Rodríguez-Espinosa, J. M., Salvador-Solé, E.
Publikováno v:
A&A 659, A116 (2022)
Identifying very high-redshift galaxies is crucial for understanding the formation and evolution of galaxies. However, many questions still remain, and the uncertainty on the epoch of reionization is large. In this approach, some models allow a doubl
Externí odkaz:
http://arxiv.org/abs/2112.04505