Super-solar N/C in the NLS1 Galaxy Markarian 1044

Abstract

Narrow-Line Seyfert 1s (NLS1s) are known to have extreme values of a number of properties compared to Active Galactic Nuclei (AGN) as a class. In particular, previous emission-line studies have suggested that NLS1s are unusually metal rich compared to broad-line AGN of comparable luminosity. We present low- and medium-resolution spectroscopic observations of the NLS1 Markarian 1044 with the Hubble Space Telescope Imaging Spectrometer (STIS). We identify two blueshifted intrinsic absorption systems at -1145 and -295 km/s relative to the systemic velocity of the galaxy. Using a simple photoionization model of the absorbing gas, we find that the strongest and best-measured of the absorption systems has N/C approximately 6.96 times the solar value. We also report on the discovery of three new Ly-alpha forest lines with neutral Hydrogen column density log greater than 12.77 in the log. This number is consistent with the 2.6 expected in the path length to the source redshift of Mrk 1044.

arXiv commentSubmitted to ApJ. 21 pages including 4 figures & 5 tables

References in corpus (16)

• The Soft X-Ray Properties of a Complete Sample of Optically Selected Quasars II. Final Results
• Black Hole Mass and Eddington Ratio as Drivers for the Observable Properties of Radio-Loud and Radio-Quiet QSOs
• Elemental Abundances in QSOs: Star Formation and Galactic Nuclear Evolution at High Redshifts
• Narrow Line Seyfert 1 Galaxies and the Evolution of Galaxies & Active Galaxies
• A comparison of the hard ASCA spectral slopes of broad and narrow-line Seyfert 1 galaxies
• M-BH - sigma relation for a Complete Sample of Soft X-ray Selected AGNs
• The Local Ly-alpha Forest IV: STIS G140M Spectra and Results on the Distribution and Baryon Content of HI Absorbers
• A Complete Sample of Soft X-ray Selected AGN: I. The Data
• The Fe II problem in NLS1s
• Is There a Metallicity--Luminosity Relationship in AGN? The Case of Narrow-Line Seyfert 1 Galaxies
• Ultraviolet and optical properties of Narrow-Line Seyfert 1 galaxies
• H-beta Line Width and the UV-X-ray Spectra of Luminous AGN
• New Insights Into The Narrow-Line Seyfert 1 Phenomenon
• Supersolar metal abundances and the Broad Line Region of Narrow-line Seyfert 1 galaxies
• A Search for Nitrogen Enriched Quasars in the Sloan Digital Sky Survey Early Data Release
• Surprises from a deep ASCA spectrum of a Broad Absorption Line Quasar PHL 5200

Cited by in corpus (11)

• Black Hole Masses of Intermediate-Redshift Quasars: Near Infrared Spectroscopy
• Evolution of chemical abundances in Seyfert galaxies
• Detection of high velocity outflows in Seyfert 1 galaxy Mrk 590
• XMM-Newton Observations of High Redshift Quasars
• The weak absorbing outflow in AGN Mrk 279: evidence of super-solar metal abundances
• Detection of a Multi-Phase Ultra-Fast Wind in the Narrow-Line Seyfert 1 Galaxy Mrk 1044
• The Close AGN Reference Survey (CARS): Tracing the circumnuclear star formation in the super-Eddington NLS1 Mrk 1044
• Outflow and metallicity in the broad-line region of low-redshift active galactic nuclei
• Constraints on the ultra-fast outflows in the narrow-line Seyfert 1 galaxy Mrk 1044 from high-resolution time- and flux-resolved spectroscopy
• The Close AGN Reference Survey (CARS). A parsec scale multi-phase outflow in the super-Eddington NLS1 Mrk 1044
• Chemical evolution of Seyfert galaxies