SIMBAD references

2005ApJ...620..183F - Astrophys. J., 620, 183-190 (2005/February-2)

Supersolar N/C in the narrow-line Seyfert 1 galaxy Markarian 1044.

FIELDS D.L., MATHUR S., POGGE R.W., NICASTRO F. and KOMOSSA S.

Abstract (from CDS):

Narrow-line Seyfert 1 galaxies (NLS1s) are known to have extreme values of a number of properties compared to active galactic nuclei (AGNs) as a class. In particular, previous emission-line studies have suggested that NLS1s are unusually metal-rich compared to broad-line AGNs of comparable luminosity. We present low- and medium-resolution spectroscopic observations of the NLS1 Mrk 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≳3.9(N/C)☉. We also report on the discovery of three new Lyα forest lines with logN_HI_≥12.77. This number is consistent with the 2.6 expected in the path length to the source redshift of Mrk 1044.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Seyfert - Galaxies: Intergalactic Medium - Galaxies: Quasars: Absorption Lines - Galaxies: Quasars: Emission Lines - Galaxies: Quasars: Individual: Name: Markarian 1044 - Ultraviolet: Galaxies

Errata: erratum vol. 630, p. 1224 (2005)

Simbad objects: 3

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