Zobrazeno 1 - 10
of 1 110
pro vyhledávání: '"Hahn, P G"'
Autor:
de Souza, Rafael S., Dahmer-Hahn, Luis G., Shen, Shiyin, Chies-Santos, Ana L., Chen, Mi, Rahna, P. T., Ye, Renhao, Tahmasebzade, Behzad
We present capivara, a fast and scalable multi-decomposition package designed to study astrophysical properties within distinct structural components of galaxies. Our spectro-decomposition code for analyzing integral field unit (IFU) data enables a m
Externí odkaz:
http://arxiv.org/abs/2410.21962
Autor:
Armah, Mark, Riffel, Rogério, Dahmer-Hahn, L. G., Davies, R. I., Dors, O. L., Kakkad, Darshan, Riffel, Rogemar A., Rodríguez-Ardila, A., Ruschel-Dutra, D., Storchi-Bergmann, T.
We explore the relations between the gas-phase metallicity radial profiles (few hundred inner parsec) and multiple galaxy properties for 15 Seyfert galaxies from the AGNIFS (Active Galactic Nuclei Integral Field Spectroscopy) sample using optical Int
Externí odkaz:
http://arxiv.org/abs/2409.20465
Autor:
Benedetti, João P. V., Riffel, Rogério, Ricci, Tiago, Riffel, Rogemar A., Pastoriza, Miriani, Trevisan, Marina, Dahmer-Hahn, Luis G., Ruschel-Dutra, Daniel, Rodríguez-Ardila, Alberto, Ferré-Mateu, Anna, Vazdekis, Alexandre, Steiner, João
We studied the ionized gas in the inner region ($\sim680\times470$ pc$^2$) of the galaxy NGC 6868 using Gemini/GMOS integral field unit observations. Channel maps reveal complex kinematics and morphology, indicating multiple processes at work in NGC
Externí odkaz:
http://arxiv.org/abs/2409.08047
Autor:
Riffel, Rogerio, Dahmer-Hahn, Luis G., Vazdekis, Alexandre, Davies, Richard, Rosario, David, Almeida, Cristina Ramos, Audibert, Anelise, Martin-Navarro, Ignacio, Martins, Lucimara Pires, Rodriguez-Ardila, Alberto, Riffel, Rogemar A., Storchi-Bergmann, Thaisa, Bertoldo-Coelho, Michele, Trevisan, Marina, Hicks, Erin, Muller, Allan Schnorr, Marinho, Lais Nery, Veilleux, Sylvain
Near-infrared long-slit spectroscopy has been used to study the stellar population (SP) of the low luminosity active galactic nuclei (AGN) and matched analogues (LLAMA) sample. To perform the SP fits we have employed the X-shooter simple stellar popu
Externí odkaz:
http://arxiv.org/abs/2405.00634
Autor:
Panda, Swayamtrupta, Ardila, Alberto Rodríguez, Faria, Marcos A. Fonseca, Cerqueira-Campos, Fernando C., Marinello, Murilo, Dahmer-Hahn, Luis G.
Emission-line studies in the active galactic nuclei (AGNs), particularly those utilizing high spatial resolution, provide the most accurate method to determine critical quantities of the central engine and of the gas a few tens of parsecs away. Using
Externí odkaz:
http://arxiv.org/abs/2308.05838
Autor:
Cerqueira-Campos, F. C., Rodríguez-Ardila, A., Panda, S., Riffel, R., Dahmer-Hahn, L. G., Marinello, M.
Coronal-Line Forest Active Galactic Nuclei (CLiF AGN) are characterized by strong, high-ionization lines, which are in contrast to what is found in typical AGNs. Here, we carry out an infrared analysis aimed at understanding the spectral energy distr
Externí odkaz:
http://arxiv.org/abs/2306.12500
We study the ionised and highly ionised gas phases in the Seyfert~2 galaxy IC~5063 by means of VLT/MUSE integral field spectroscopy. Our analysis allowed us to detect a high-ionisation gas outflow traced by the coronal lines [\ion{Fe}{vii}]~$\lambda$
Externí odkaz:
http://arxiv.org/abs/2306.09570
Autor:
Dahmer-Hahn, Luis G., Rodríguez-Ardila, Alberto, Bianchin, Marina, Riffel, Rogemar A., Riffel, Rogério, Storchi-Bergmann, Thaisa, Hao, Lei
Variability studies have proven to be a powerful diagnostic tool for understanding the physics and properties of of Active Galactic Nuclei (AGNs). They provide insights into the spatial and temporal distribution of the emitting regions, the structure
Externí odkaz:
http://arxiv.org/abs/2306.06916
Autor:
Benedetti, João P. V., Riffel, Rogério, Ricci, Tiago, Trevisan, Marina, Riffel, Rogemar A., Pastoriza, Miriani, Dahmer-Hahn, Luis G., Ruschel-Dutra, Daniel, Rodríguez-Ardila, Alberto, Hernandez-Jimenez, Jose A., Steiner, João
We use Gemini integral field unit observations to map the stellar population properties in the inner region ($\sim680\times470$ pc$^2$) of the galaxy NGC 6868. In order to understand the physical and chemical properties of the stellar content of this
Externí odkaz:
http://arxiv.org/abs/2304.11194
Autor:
Riffel, R. A., Storchi-Bergmann, T., Riffel, R., Bianchin, M., Zakamska, N. L., Ruschel-Dutra, D., Bentz, M. C., Burtscher, L., Crenshaw, D. M., Dahmer-Hahn, L. G., Dametto, N. Z., Davies, R. I., Diniz, M. R., Fischer, T. C., Harrison, C. M., Mainieri, V., Revalski, M., Rodriguez-Ardila, A., Rosario, D. J., Schonell, A. J.
Publikováno v:
MNRAS, 521, 1832 (2023)
We present the hot molecular and warm ionised gas kinematics for 33 nearby ($0.001\lesssim z\lesssim0.056$) X-ray selected active galaxies using the H$_2 2.1218 \mu$m and Br$\gamma$ emission lines observed in the K-band with the Gemini Near-Infrared
Externí odkaz:
http://arxiv.org/abs/2302.11324