Discovery of a pseudobulge galaxy launching powerful relativistic jets

Abstract

Supermassive black holes launching plasma jets at close to speed of light, producing gamma-rays, have ubiquitously been found to be hosted by massive elliptical galaxies. Since elliptical galaxies are generally believed to be built through galaxy mergers, active galactic nuclei (AGN) launching relativistic jets are associated to the latest stages of galaxy evolution. We have discovered a pseudo-bulge morphology in the host galaxy of the gamma-ray AGN PKS 2004-447. This is the first gamma-ray emitter radio loud AGN found to be launched from a system where both black hole and host galaxy have been actively growing via secular processes. This is evidence for an alternative black hole-galaxy co-evolutionary path to develop powerful relativistic jets that is not merger-driven.

20 pages, 4 figures. Astrophysical Journal, accepted

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Cited by in corpus (22)

• Gamma-ray Emitting Narrow Line Seyfert 1 Galaxies in The Sloan Digital Sky Survey
• The disc-like host galaxies of radio-loud Narrow-Line Seyfert 1s
• Stellar Photometric Structures of the Host Galaxies of Nearby Type 1 Active Galactic Nuclei
• Intra-night optical variability characteristics of different classes of narrow line Seyfert 1 galaxies
• The continuous rise of bulges out of galactic disks
• Radio morphology of southern narrow-line Seyfert 1 galaxies with Very Large Array observations
• An Elusive Population of Massive Disk Galaxies Hosting Double-lobed Radio-loud AGNs
• Jetted narrow-line Seyfert 1 galaxies breaking the jet paradigm -- a comprehensive study of host galaxy morphologies
• Spectacular 240 kpc double-sided relativistic jets in a spiral-hosted narrow-line Seyfert 1 galaxy
• TXS 2116$-$077: A Gamma-ray Emitting Relativistic Jet Hosted in a Galaxy Merger
• Broadband X-ray observations of four gamma-ray narrow-line Seyfert 1 galaxies
• The radio-loud narrow-line Seyfert 1 galaxy 1H 0323+342 in a galaxy merger
• Multiwavelength variability of gamma-ray emitting narrow-line Seyfert 1 galaxies
• A host galaxy study of southern narrow-line Seyfert 1 galaxies
• A γ-ray emitting NLS1 galaxy SDSS J095909.51+460014.3 identified by multiwavelength contemporaneous brightening
• On the genesis of spiral galaxies -- Classical and pseudo bulges as extremities of a continuous sequence
• The host galaxy of low-luminosity compact sources
• Jet physics of accreting super-massive black holes in the era of the Fermi Gamma-ray Space Telescope
• A redshifted excess in the broad emission lines after the flare of the $\gamma$-ray narrow-line Seyfert 1 PKS 2004-447
• Hunting for the nature of the enigmatic narrow-line Seyfert 1 galaxy PKS 2004-447
• Peaked sources and narrow-line Seyfert 1s: a love story
• Unravelling the origin of extended radio emission in narrow-line Seyfert 1 galaxies with the JVLA