NGC 1275: an outlier of the black hole-host scaling relations
| Autor: | Eleonora Sani, Federica Ricci, Fabio La Franca, Stefano Bianchi, Angela Bongiorno, Marcella Brusa, Alessandro Marconi, Francesca Onori, Francesco Shankar, Cristian Vignali |
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| Přispěvatelé: | ITA, GBR, Sani Eleonora, Ricci Federica, La Franca Fabio, Bianchi Stefano, Bongiorno Angela, Brusa Marcella, Marconi Alessandro, Onori Francesca, Shankar Francesco, Vignali Cristian, Sani, Eleonora, Ricci, Federica, La Franca, Fabio, Bianchi, Stefano, Bongiorno, Angela, Brusa, Marcella, Marconi, Alessandro, Onori, Francesca, Shankar, Francesco, Vignali, Cristian |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Active galactic nucleus
010504 meteorology & atmospheric sciences lcsh:Astronomy Astrophysics::High Energy Astrophysical Phenomena AGN1 AGN2 black hole mass scaling realtions infrared NGC 1275 Astrophysics - Astrophysics of Galaxies FOS: Physical sciences Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences lcsh:QB1-991 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics 010303 astronomy & astrophysics Scaling Astrophysics::Galaxy Astrophysics 0105 earth and related environmental sciences Physics Plane (geometry) Star formation lcsh:QC801-809 Center (category theory) Sigma Astronomy and Astrophysics AGN1 AGN2 black hole mass scaling realtions infrared NGC 1275 Galaxy Black hole lcsh:Geophysics. Cosmic physics Astrophysics of Galaxies (astro-ph.GA) |
| Zdroj: | Frontiers in Astronomy and Space Sciences, Vol 5 (2018) |
| Popis: | The active galaxy NGC 1275 lies at the center of the Perseus cluster of galaxies, being an archetypal BH-galaxy system that is supposed to fit well with the M_BH-host scaling relations obtained for quiescent galaxies. Since it harbours an obscured AGN, only recently our group has been able to estimate its black hole mass. Here our aim is to pinpoint NGC 1275 on the less dispersed scaling relations, namely the M_BH-sigma_star and M_BH-L_bul planes. Starting from our previous work Ricci et al. 2017b, we estimate that NGC 1275 falls well outside the intrinsic dispersion of the M_BH-sigma_star plane being ~1.2 dex (in black hole mass) displaced with respect to the scaling relations. We then perform a 2D morphological decomposition analysis on Spitzer/IRAC images at 3.6 mic and find that, beyond the bright compact nucleus that dominates the central emission, NGC 1275 follows a de Vaucouleurs profile with no sign of significant star formation nor clear merger remnants. Nonetheless, its displacement on the M_BH-L_(3.6,bul) plane with respect to the scaling relation is as high as observed in the M_BH-sigma_star. 12 pages, 3 figures. Published in Frontiers in Astronomy and Space Sciences |
| Databáze: | OpenAIRE |
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