2023/11/27 by Maryam Dehghanian, Dehghanian, Maryam, Nahum Arav +7
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Stellar, planetary, and galactic studies
paper · pdf · doi:10.48550/arxiv.2311.16059
openalex publication_date 2023/11/27 · openalex created_date 2023/12/01 · openalex updated_date 2026/07/28
In the HST/COS spectrum of the Seyfert 1 galaxy 2MASX J14292507+4518318, we have identified a narrow absorption line (NAL) outflow system with a velocity of -151 km s-1 This outflow exhibits absorption troughs from the resonance states of ions like CIV, NV, SiIV, and SiII, as well as excited states from CII*, and SiII*. Our investigation of the outflow involved measuring ionic column densities and conducting photoionization analysis. These yield the total column density of the outflow to be estimated as log NH=19.84 [cm-2], its ionization parameter to be log UH=-2.0 and its electron number density equal to log ne= 2.75[cm-3]. These measurements enabled us to determine the mass-loss rate and the kinetic luminosity of the outflow system to be Mdot=0.22[MSunyr-1] and log EdotK=39.3 [erg s-1], respectively. We have also measured the location of the outflow system to be at ∼275 pc from the central source. This outflow does not contribute to the AGN feedback processes due to the low ratio of the outflow's kinetic luminosity to the AGN's Eddington luminosity (EdotK/LEdd≈ 0.00025 %). This outflow is remarkably similar to the two bipolar lobe outflows observed in the Milky Way by XMM-Newton and Chandra.