Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Deconto MacHado, A"'
Exploring the links between quasar winds and radio emission along the Main Sequence at high redshift
Despite the increasing prevalence of RL sources at cosmic noon, our understanding of the underlying physics that governs the accretion disc outflows in these particular sources and its dissimilarity with RQ quasars remains somewhat limited. Disentang
Externí odkaz:
http://arxiv.org/abs/2408.06260
Autor:
Floris, A., Marziani, P., Panda, S., Sniegowska, M., D'Onofrio, M., Deconto-Machado, A., Del Olmo, A., Czerny, B.
Publikováno v:
A&A 689, A321 (2024)
The 4D eigenvector 1 (E1) sequence has emerged as a powerful tool for organizing the observational and physical characteristics of type-1 active galactic nuclei (AGNs). In this study, we present a comprehensive analysis of the metallicity of the broa
Externí odkaz:
http://arxiv.org/abs/2405.04456
Autor:
Marziani, Paola, Floris, Alberto, Deconto-Machado, Alice, Panda, Swayamtrupta, Śniegowska, Marzena, Garnica, Karla, Dultzin, Deborah, D'Onofrio, Mauro, Del Olmo, Ascensión, Bon, Edi, Bon, Nataša
The 4D Eigenvector 1 sequence has proven to be a highly effective tool for organizing observational and physical properties of type 1 active galactic nuclei (AGN). In this paper, we present multiple measurements of metallicity for the broad line regi
Externí odkaz:
http://arxiv.org/abs/2401.02266
Publikováno v:
A&A 669, A83 (2023)
We aim to evaluate the behaviour of our 22 high-redshift (2.2 < z < 3.7) and high-luminosity (47.39 < Lbol < 48.36) quasars in the context of the 4-Dimensional Eigenvector 1. Our approach involves studying quasar physics through spectroscopic explora
Externí odkaz:
http://arxiv.org/abs/2211.03853
Autor:
Paola Marziani, Alberto Floris, Alice Deconto-Machado, Swayamtrupta Panda, Marzena Sniegowska, Karla Garnica, Deborah Dultzin, Mauro D’Onofrio, Ascensión Del Olmo, Edi Bon, Nataša Bon
Publikováno v:
Physics, Vol 6, Iss 1, Pp 216-236 (2024)
The 4D (four-dimensional) eigenvector 1 (E1) sequence has proven to be a highly effective tool for organizing observational and physical properties of type-1 active galactic nuclei (AGNs). In this paper, we present multiple measurements of metallicit
Externí odkaz:
https://doaj.org/article/433f6c3d1e2040cebe8b3b58f1e07837
Publikováno v:
Boletim da Sociedade Astronomica Brasileira, 33, 1, 168-172, 2022
Much effort has been done in order to better understand the active galactic nuclei mechanisms behind the relativistic jets observed in radio-loud sources. These phenomena are commonly seen in luminous objects with intermediate/high redshift such as q
Externí odkaz:
http://arxiv.org/abs/2205.14499
Gaseous outflows appear to be a universal property of type-1 and type-2 active galactic nuclei (AGN). The main diagnostic is provided by emission features shifted to higher frequency via the Doppler effect, implying that the emitting gas is moving to
Externí odkaz:
http://arxiv.org/abs/2203.09196
Autor:
Nascimento, Janaína C. do, Dors, Oli L., Storchi-Bergmann, Thaisa, Mallmann, Nícolas D., Riffel, Rogério, Ilha, Gabriele S., Riffel, Rogemar A., Rembold, Sandro B., Deconto-Machado, Alice, da Costa, Luiz N., Armah, Mark
We derive the metallicity (traced by the O/H abundance) of the Narrow Line Region ( NLR) of 108 Seyfert galaxies as well as radial metallicity gradients along their galaxy disks and of these of a matched control sample of no active galaxies. In view
Externí odkaz:
http://arxiv.org/abs/2203.08602
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
Publikováno v:
Astron. Nachr.,1 (2021)
Different properties of quasars may be observed and analysed through the many ranges of the electromagnetic spectrum. Pioneering studies showed that an "H-R diagram" for quasars was needed to organize these data, and that more than two dimensions wer
Externí odkaz:
http://arxiv.org/abs/2112.01178