IRAS F11119+3257 or simply as F11119+3257, is a galaxy located in constellation Ursa Major. With a redshift of 0.187580, it has a light travel time distance of 2.5 billion light-years and is considered an ultraluminous infrared galaxy (ULIRG).
Characteristics
The nucleus of IRAS F11119+3257 is active. It has been classified as a narrow-line Seyfert 1 galaxy and has a post-merger morphology. It is also a categorized as type-1 quasar with fast outflows based on NuSTAR and Suzaku observations. The emission lines that contain high ionization levels are mainly dominated by blueshifted components.
The radio emission of IRAS F11119+3257, is dominated by its active galactic nucleus (AGN). There is an evidence of a central accretion disk. It is also found the galaxy has molecular outflow based on detections of both blue and redshifted wings in the CO(1–0) emission line profile. The estimated molecular mechanical outflow power is around 44.4 ± 0.5 erg s-1, confirming only 2% of the total luminosity has been emitted out by its active galactic nucleus. The central supermassive black hole mass of the galaxy is 2 × 107 solar masses. Apart from the molecular outflows, the galaxy exhibits X-ray emitting winds driven through radiation, suggesting its energy is conserved through quasar-mode feedback. Moreover the radio spectrum is peaked at 0.53 ± 0.06 GHz frequencies.
A two-sided radio jet has been discovered in IRAS F11119+3257 based on observations conducted in 2020. The jet is shown to have a separation gap of 200 parsecs in total and is found moving at fast speeds of 0.57c. Evidence also found it is a compact symmetrical object (CSO), depicted as unusual with a measured kinematic age of 6 x 105 years.
References