Zobrazeno 1 - 10
of 1 511
pro vyhledávání: '"Bergmann, T."'
Autor:
Dors, O. L., Cardaci, M. V., Hägele, G. F., Valerdi, M., Ilha, G. S., Oliveira, C. B., Riffel, R. A., Flury, S. R., Arellano-Córdova, K. Z., Storchi-Bergmann, T., Riffel, R., Almeida, G. C., Morais, I. N.
We derive the nitrogen and oxygen abundances in the Narrow Line Regions (NLRs) of a sample of 38 local ($z \: < \: 0.4$) Seyfert~2 nuclei. For that, we consider narrow optical emission line intensities and direct estimates of the electron temperature
Externí odkaz:
http://arxiv.org/abs/2405.13906
Autor:
Gatto, Lara, Storchi-Bergmann, T., Riffel, Rogemar A., Riffel, Rogério, Rembold, Sandro B., Schimoia, Jaderson S., Mallmann, Nicolas D., Ilha, Gabriele S.
We study the ionised gas kinematics of 293 Active Galactic Nuclei (AGN) hosts as compared to that of 485 control galaxies from the MaNGA-SDSS survey using measurements of the [OIII]$\lambda$5007\AA emission-line profiles, presenting flux, velocity an
Externí odkaz:
http://arxiv.org/abs/2404.14502
Autor:
Dors, O. L., Valerdi, M., Riffel, R. A., Riffel, R., Cardaci, M. V., Hägele, G. F., Armah, M., Revalski, M., Flury, S. R., Freitas-Lemes, P., Amôres, E. B., Krabbe, A. C., Binette, L., Feltre, A., Storchi-Bergmann, T.
For the first time, the sulphur abundance relative to hydrogen (S/H) in the Narrow Line Regions of a sample of Seyfert 2 nuclei (Sy 2s) has been derived via direct estimation of the electron temperature. Narrow emission line intensities from the SDSS
Externí odkaz:
http://arxiv.org/abs/2302.12876
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
Autor:
Ilha, G. S., Riffel, R. A., Ricci, T. V., Rembold, S. B., Storchi-Bergmann, T., Riffel, R., Roy, N., Bundy, K., Nemmen, R., Schimoia, J. S., da Costa, L. N.
Red Geysers are quiescent galaxies with galactic scale ionised outflows, likely due to low-luminosity Active Galactic Nuclei (AGN). We used Gemini GMOS-IFU observations of the inner $\sim 1.0-3.0$ kpc of nine Red Geysers selected from the MaNGA surve
Externí odkaz:
http://arxiv.org/abs/2208.03383
Autor:
Deconto-Machado, A., Riffel, R. A., Ilha, G. S., Rembold, S. B., Storchi-Bergmann, T., Riffel, R., Schimoia, J. S., Schneider, D. P., Bizyaev, D., Feng, S., Wylezalek, D., da Costa, L. N., Nascimento, J. C. do, Maia, M. A. G.
Publikováno v:
A&A 659, A131 (2022)
We analyse the kinematics of 170 AGN host galaxies as compared to those of a matched control sample of non-active galaxies from the MaNGA survey in order to characterise and estimate the extents of the Narrow Line Region (NLR) and of the kinematicall
Externí odkaz:
http://arxiv.org/abs/2201.01690
Autor:
Dahmer-Hahn, L. G., Riffel, R., Rodríguez-Ardila, A., Riffel, R. A., Storchi-Bergmann, T., Marinello, M., Davies, R. I., Burtscher, L., Ruschel-Dutra, D., Rosario, D. J.
In modern models and simulations of galactic evolution, the star formation in massive galaxies is regulated by an ad hoc active galactic nuclei (AGN) feedback process. However, the physics and the extension of such effects on the star formation histo
Externí odkaz:
http://arxiv.org/abs/2111.10036
Autor:
Bianchin, M., Riffel, R. A., Storchi-Bergmann, T., Riffel, R., Ruschel-Dutra, D., Harrison, C. M., Dahmer-Hahn, L. G., Mainieri, V., Schonell, A. J., Dametto, N. Z.
We study the gas distribution and kinematics of the inner kpc of six moderately luminous (43.43$\leq$log$L_{\rm bol}\leq$44.83) nearby ($0.004 \leq z \leq 0.014$) Seyfert galaxies observed with the Near-infrared Integral Field Spectrograph (NIFS) in
Externí odkaz:
http://arxiv.org/abs/2111.09130
Autor:
Motter, J. C., Riffel, R., Ricci, T. V., Riffel, R. A., Storchi-Bergmann, T., Pastoriza, M. G., Rodriguez-Ardila, A., Ruschel-Dutra, D., Dahmer-Hahn, L. G., Dametto, N. Z., Diniz, M. R.
The merger remnant NGC 34 is a local luminous infrared galaxy (LIRG) hosting a nuclear starburst and a hard X-ray source associated with a putative, obscured Seyfert~2 nucleus. In this work, we use adaptive optics assisted near infrared (NIR) integra
Externí odkaz:
http://arxiv.org/abs/2107.09731
Autor:
Ruschel-Dutra, D., Storchi-Bergmann, T., Schnorr-Müller, A., Riffel, R. A., de Oliveira, B. Dall'Agnol, Lena, D., Robinson, A., Nagar, N., Elvis, M.
We analyse optical datacubes of the inner kiloparsec of 30 local ($z\le0.02$) active galactic nuclei (AGN) hosts that our research group, AGNIFS, has collected over the past decade via observations with the integral field units of the Gemini Multi-Ob
Externí odkaz:
http://arxiv.org/abs/2107.07635