Outputs (4)

The demographics of obscured AGN from X-ray spectroscopy guided by multiwavelength information (2022)
Journal Article
Laloux, B., Georgakakis, A., Andonie, C., Alexander, D. M., Ruiz, A., Rosario, D. J., Aird, J., Buchner, J., Carrera, F. J., Lapi, A., Ramos Almeida, C., Salvato, M., & Shankar, F. (2023). The demographics of obscured AGN from X-ray spectroscopy guided by multiwavelength information. Monthly Notices of the Royal Astronomical Society, 518(2), 2546-2566. https://doi.org/10.1093/mnras/stac3255

A complete census of active galactic nuclei (AGNs) is a prerequisite for understanding the growth of supermassive black holes across cosmic time. A significant challenge towards this goal is the whereabouts of heavily obscured AGN that remain uncerta... Read More about The demographics of obscured AGN from X-ray spectroscopy guided by multiwavelength information.

A panchromatic view of infrared quasars: excess star formation and radio emission in the most heavily obscured systems (2022)
Journal Article
Andonie, C., Alexander, D. M., Rosario, D., Laloux, B., Georgakakis, A., Morabito, L. K., Villforth, C., Avirett-Mackenzie, M., Rivera, G. C., Del Moro, A., Fotopoulou, S., Harrison, C., Lapi, A., Petley, J., Petter, G., & Shankar, F. (2022). A panchromatic view of infrared quasars: excess star formation and radio emission in the most heavily obscured systems. Monthly Notices of the Royal Astronomical Society, 517(2), 2577-2598. https://doi.org/10.1093/mnras/stac2800

To understand the active galactic nuclei (AGNs) phenomenon and their impact on the evolution of galaxies, a complete AGN census is required; however, finding heavily obscured AGNs is observationally challenging. Here we use the deep and extensive mul... Read More about A panchromatic view of infrared quasars: excess star formation and radio emission in the most heavily obscured systems.

Localizing narrow Fe Kα emission within bright AGN (2022)
Journal Article
Andonie, C., Bauer, F. E., Carraro, R., Arévalo, P., Alexander, D. M., Brandt, W. N., Buchner, J., He, A., Koss, M. J., Ricci, C., Salinas, V., Solimano, M., Tortosa, A., & Treister, E. (2022). Localizing narrow Fe Kα emission within bright AGN. Astronomy & Astrophysics, 664, https://doi.org/10.1051/0004-6361/202142473

Context. The 6.4 keV Fe Kα emission line is a ubiquitous feature in X-ray spectra of active galactic nuclei (AGN), and its properties track the interaction between the variable primary X-ray continuum and the surrounding structure from which it arise... Read More about Localizing narrow Fe Kα emission within bright AGN.

A multiwavelength-motivated X-ray model for the Circinus Galaxy (2022)
Journal Article
Andonie, C., Ricci, C., Paltani, S., Arévalo, P., Treister, E., Bauer, F., & Stalevski, M. (2022). A multiwavelength-motivated X-ray model for the Circinus Galaxy. Monthly Notices of the Royal Astronomical Society, 511(4), 5768-5781. https://doi.org/10.1093/mnras/stac403

Reprocessed X-ray emission in active galactic nuclei can provide fundamental information about the circumnuclear environments of supermassive black holes. Recent mid-infrared studies have shown evidence of an extended dusty structure perpendicular to... Read More about A multiwavelength-motivated X-ray model for the Circinus Galaxy.