88 citations · 277 across the 10 of their papers we have counts for
10 papers
Supermassive black holes, pseudobulges, and the narrow-line Seyfert 1 galaxies
Smita Mathur, Dale Fields, Bradley M. Peterson +1
We present HST/ACS observations of ten galaxies that host narrow-line Seyfert 1 (NLS1) nuclei, believed to contain relatively smaller mass black holes accreting at high Eddington r…
XMM-{\em Newton} and FUSE Tentative Evidence for a WHIM filament along the Line of Sight to PKS~0558-504
F. Nicastro, Y. Krongold, D. Fields +5
We present a possible OVIII X-ray absorption line at which, if confirmed, will be the first one associated with a broad HI Ly (BLB: FWHM= km…
XMM-Newton observations of SDSS J143030.22001115.1: an unusually flat spectrum AGN
S. Mathur, E. C. Golowacz, R. Williams +3
We present XMM observations of the AGN SDSS 1430-0011. The low S/N spectrum of this source obtained in a snap shot Chandra observation showed an unusually flat continuum. With the…
The Nuclear Outflows and Feedback in the Seyfert 2 Galaxy Markarian 573
K. Schlesinger, Richard W. Pogge, Paul Martini +2
We present a study of outflow and feedback in the well-known Seyfert 2 galaxy Markarian 573 using high angular resolution long-slit spectrophotometry obtained with the Hubble Space…
Metallicity measurements in AGNs
Smita Mathur, Dale Fields
Measuring metallicity in the nuclear regions of AGNs is difficult because only a few lines are observed and ionization correction becomes a major problem. Nitrogen to carbon ratio…
The weak absorbing outflow in AGN Mrk 279: evidence of super-solar metal abundances
Dale L. Fields, Smita Mathur, Yair Krongold +2
We present analysis and photoionization modeling of the Chandra high resolution spectrum of Mrk 279. There is clear evidence of an absorbing outflow which is best fit by a two comp…