Zobrazeno 1 - 10
of 305
pro vyhledávání: '"Paredes M,P."'
Autor:
Almeida, C. Ramos, Esparza-Arredondo, D., Gonzalez-Martin, O., Garcia-Bernete, I., Pereira-Santaella, M., Alonso-Herrero, A., Acosta-Pulido, J. A., Bessiere, P. S., Levenson, N. A., Tadhunter, C. N., Rigopoulou, D., Martinez-Paredes, M., Cazzoli, S., Garcia-Lorenzo, B.
Publikováno v:
A&A 669, L5 (2023)
Mrk 477 is the closest type-2 quasar (QSO2), at a distance of 163 Mpc. This makes it an ideal laboratory for studying the interplay between nuclear activity and star formation with a great level of detail and signal-to-noise. In this Letter we presen
Externí odkaz:
http://arxiv.org/abs/2212.01258
Autor:
García-Bernete, I., González-Martín, O., Almeida, C. Ramos, Alonso-Herrero, A., Martínez-Paredes, M., Ward, M. J., Roche, P. F., Acosta-Pulido, J. A., López-Rodríguez, E., Rigopoulou, D., Esparza-Arredondo, D.
Publikováno v:
A&A 667, A140 (2022)
We present a statistical analysis of the properties of the obscuring material around active galactic nuclei (AGN). This study represents the first of its kind for an ultra-hard X-ray (14-195keV; Swift/BAT) volume-limited (DL<40 Mpc) sample of 24 Seyf
Externí odkaz:
http://arxiv.org/abs/2210.03508
Autor:
Martínez-Paredes, M., González-Martín, O., HyeongHan, K., Geier, S., García-Bernete, I., Almeida, C. Ramos, Alonso-Herrero, A., Aretxaga, I., Kim, M., Sohn, B. W., Masegosa, J.
To study the nuclear ($\lesssim1\,$kpc) dust of nearby ($z<0.1$) type 1 Quasi Stellar Objects (QSOs) we obtained new near-infrared (NIR) high angular resolution ($\sim0.3$ arcsec) photometry in the H and Ks bands, for 13 QSOs with available mid-infra
Externí odkaz:
http://arxiv.org/abs/2108.08043
Autor:
Martínez-Paredes, M., González-Martín, O., Esparza-Arredondo, D., Kim, M., Alonso-Herrero, A., Krongold, Y., Hoang, T., Almeida, C. Ramos, Aretxaga, I., Dultzin, D., Hodgson, J.
We measure the 10 and $18\mu$m silicate features in a sample of 67 local ($z<0.1$) type 1 active galactic nuclei (AGN) with available {\it Spitzer} spectra dominated by non-stellar processes. We find that the $10\mu$m silicate feature peaks at $10.3^
Externí odkaz:
http://arxiv.org/abs/2001.00844
Autor:
González-Martín, O., Masegosa, J., García-Bernete, I., Almeida, C. Ramos, Rodríguez-Espinosa, J. M., Márquez, I., Esparza-Arredondo, D., Osorio-Clavijo, N., Martínez-Paredes, M., Victoria-Ceballos, C., Pasetto, A., Dultzin, D.
This is the second in a series of papers devoted to explore a set of six dusty models of active galactic nuclei (AGN) with available spectral energy distributions (SEDs). These models are the smooth torus by Fritz et al. (2006), the clumpy torus by N
Externí odkaz:
http://arxiv.org/abs/1908.11389
Autor:
González-Martín, O., Masegosa, J., García-Bernete, I., Almeida, C. Ramos, Rodríguez-Espinosa, J. M., Márquez, I., Esparza-Arredondo, D., Osorio-Clavijo, N., Martínez-Paredes, M., Victoria-Ceballos, C., Pasetto, A., Dultzin, D.
At distances from the active galaxy nucleus (AGN) where the ambient temperature falls below ~1500-1800 K, dust is able to survive. It is thus possible to have a large dusty structure present which surrounds the AGN. This is the first of two papers ai
Externí odkaz:
http://arxiv.org/abs/1908.11381
In this paper we present a formulation of the unit commitment problem with AC power flow constraints. It is solved by a Benders decomposition in which the unit commitment master problem is formulated as a mixed-integer problem with linearization of t
Externí odkaz:
http://arxiv.org/abs/1903.02628
Autor:
Sánchez, J. D. Vega, Osorio, D. P. Moya, Olivo, E. E. Benitez, Alves, H., Paredes, M. C. P., Urquiza-Aguiar, L.
In this paper, we derive closed-form exact expressions for the main statistics of the ratio of squared alpha-mu random variables, which are of interest in many scenarios for future wireless networks where generalized distributions are more suitable t
Externí odkaz:
http://arxiv.org/abs/1902.07847
Autor:
Martínez-Paredes, M., Aretxaga, I., Gonzalez-Martin, O., Alonso-Herrero, A., Levenson, N. A., Almeida, C. Ramos, Lopez-Rodriguez, E.
We examine star formation activity in a distance- (z<0.1) and flux-limited sample of quasars (QSOs). Mid-infrared (MIR) spectral diagnostics at high spatial resolution (~0.4 arcsec) yield star formation rates (SFRs) in the inner regions (~300 pc to 1
Externí odkaz:
http://arxiv.org/abs/1901.02158
Autor:
Lopez-Rodriguez, E., Alonso-Herrero, A., Diaz-Santos, T., Gonzalez-Martin, O., Ichikawa, K., Levenson, N. A., Martinez-Paredes, M., Nikutta, R., Packham, C., Perlman, E., Almeida, C. Ramos, Rodriguez-Espinosa, J. M., Telesco, C. M.
We combine new (NGC 1275, NGC 4151, and NGC 5506) and previously published (Cygnus A, Mrk 231, and NGC 1068) sub-arcsecond resolution mid-infrared (MIR; 8-13 $\mu$m) imaging- and spectro-polarimetric observations of six Seyfert galaxies using CanariC
Externí odkaz:
http://arxiv.org/abs/1805.01899