Hostname: page-component-848d4c4894-pjpqr Total loading time: 0 Render date: 2024-06-25T23:41:49.640Z Has data issue: false hasContentIssue false
  • English
  • Français

Predicting the emission profile and estimation of model parameters for some nearby LLAGN using accretion and jet models

Published online by Cambridge University Press:  29 January 2021

Bidisha Bandyopadhyay ,
Fu-Guo Xie ,
Neil M. Nagar ,
Dominik R. G. Schleicher ,
Venkatessh Ramakrishnan ,
Patricia Arévalo ,
Elena López  and
Yaherlyn Diaz
Bidisha Bandyopadhyay
Affiliation:
Departamento de Astronomía, Facultad Ciencias Físicas y Matemáticas, Universidad de Concepción, Av. Esteban Iturra s/n Barrio Universitario, Casilla 160-C, Concepción, Chile email: bidisharia@gmail.com
Fu-Guo Xie
Affiliation:
Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai200030, China
Neil M. Nagar
Affiliation:
Departamento de Astronomía, Facultad Ciencias Físicas y Matemáticas, Universidad de Concepción, Av. Esteban Iturra s/n Barrio Universitario, Casilla 160-C, Concepción, Chile email: bidisharia@gmail.com
Dominik R. G. Schleicher
Affiliation:
Departamento de Astronomía, Facultad Ciencias Físicas y Matemáticas, Universidad de Concepción, Av. Esteban Iturra s/n Barrio Universitario, Casilla 160-C, Concepción, Chile email: bidisharia@gmail.com
Venkatessh Ramakrishnan
Affiliation:
Departamento de Astronomía, Facultad Ciencias Físicas y Matemáticas, Universidad de Concepción, Av. Esteban Iturra s/n Barrio Universitario, Casilla 160-C, Concepción, Chile email: bidisharia@gmail.com
Patricia Arévalo
Affiliation:
Instituto de Física y Astronomía, Facultad de Ciencias, Universidad de Valparaíso, Gran Bretana No. 1111, Playa Ancha, Valparaíso, Chile
Elena López
Affiliation:
Instituto de Física y Astronomía, Facultad de Ciencias, Universidad de Valparaíso, Gran Bretana No. 1111, Playa Ancha, Valparaíso, Chile
Yaherlyn Diaz
Affiliation:
Instituto de Física y Astronomía, Facultad de Ciencias, Universidad de Valparaíso, Gran Bretana No. 1111, Playa Ancha, Valparaíso, Chile
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The Event Horizon Telescope (EHT) provides a unique opportunity to probe the physics of supermassive black holes through Very Large Baseline Interferometry (VLBI), such as the existence of the event horizon, the accretion processes as well as jet formation in Low Luminosity AGN (LLAGN). We build a theoretical model which includes an Advection Dominated Accretion Flow (ADAF) and a simple radio jet outflow. The predicted spectral energy distribution (SED) of this model can be compared to observations to get the best estimates of the model parameters. The model-predicted radial emission profiles at different frequency bands can be used to predict whether the inflow can be resolved by the EHT or other telescopes. We have applied this method to some nearby LLAGN such as M84, NGC 4594, NGC 4278 and NGC 3998. We also estimate the model parameters for each of them using high resolution data from different surveys.

Keywords

accretionaccretion disksblack hole physicsGalaxy: nucleus
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S356: Nuclear Activity in Galaxies Across Cosmic Time , October 2019 , pp. 56 - 60
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

References

Bandyopadhyay, B., Xie, F.-G., Nagar, N. M., Schleicher, D.R.G., Ramakrishnan, V., Arévalo, P., López, E., & Diaz, Y. 2019, MNRAS, 490, 460610.1093/mnras/stz2874CrossRefGoogle Scholar
Blandford, R. D. & Begelman, M. C. 1999, MNRAS, 303, L110.1046/j.1365-8711.1999.02358.xCrossRefGoogle Scholar
Chael, A., Rowan, M., Narayan, R., Johnson, M., & Sironi, L. 2018, MNRAS, 478, 520910.1093/mnras/sty1261CrossRefGoogle Scholar
Event Horizon Telescope Collaboration 2019, ApJ, 875, L110.3847/2041-8213/ab0ec7CrossRefGoogle Scholar
Li, Y.-P., Yuan, F., & Xie, F.-G. 2016, ApJ, 830, 7810.3847/0004-637X/830/2/78CrossRefGoogle Scholar
Lister, M. L., Aller, M. F., Aller, H. D., Homan, D. C., Kellermann, K. I., Kovalev, Y. Y., Pushkarev, A. B., Richards, J. L., Ros, E., & Savolainen, T. 2016, AJ, 152, 1210.3847/0004-6256/152/1/12CrossRefGoogle Scholar
Mościbrodzka, M., Falcke, H., & Shiokawa, H. 2016, A&A (Letters), 586, A38Google Scholar
Narayan, R. & Yi, I. 1994, ApJ, 428, L1310.1086/187381CrossRefGoogle Scholar
Narayan, R. & Yi, I. 1995, ApJ, 444, 23110.1086/175599CrossRefGoogle Scholar
Nemmen, R. S., Storchi-Bergmann, T., & Eracleous, M. 2014, MNRAS, 438, 2804Google Scholar
Prieto, M. A., Fernández-Ontiveros, J. A., Markoff, S., Espada, D., & González-Martn, O. 2016, MNRAS, 457, 380110.1093/mnras/stw166CrossRefGoogle Scholar
Spada, M., Ghisellini, G., Lazzati, D., & Celotti, A. 2001, MNRAS 325, 155910.1046/j.1365-8711.2001.04557.xCrossRefGoogle Scholar
Xie, F.-G. & Yuan, F. 2012, MNRAS, 427, 158010.1111/j.1365-2966.2012.22030.xCrossRefGoogle Scholar
Yuan, F., Peng, Q., Lu, J., & Wang, J. 1999, ApJ, 537, 23610.1086/309020CrossRefGoogle Scholar