We will obtain spatially resolved spectra of 3 Narrow-Line Seyfert 1 galaxies (NLS1s) with the STIS G430M grating centered on the bright [O III] emission lines. We will measure the radial velocities of the [O III] lines across the narrow-line regions of these AGN and determine the inclinations of their torus/accretion-disk axes via our kinematic models. Our goal is to answer the following question: are NLS1s viewed pole-on? If so, then the narrow widths of their permitted lines may be due to geometric effects, rather than low black hole masses and correspondingly high Eddington ratios as indicated by the currently popular paradigm for NLS1s.

We will obtain long-slit STIS spectra of each of our 3 targets at two roughly perpendicular slit position angles. Due to the compactness of the NLRs in our targets, the 52 x 0.1 arcsec slit is essential for isolating spatially distinct regions. We will use the G430M grating centered on [O~III] 5007, which is the brightest emission line. Based on our previous experience, the velocity resolution provided by this grating (30 km/sec) is ideal for separating distinct kinematic components and measuring accurate velocity centroids and dispersions for each component. We will use the available HST [O III] images (Schmitt et al. 2003) to place the slits along the major and minor axes of the narrow-line regions. We will use a standard point-source target acquisition. AGN/QUASARS 12 false 0.0 0.0 false false false false false SUPPORTED GALAXY SEYFERT This object was generated by the targetselector and retrieved from the NED database. J2000 12 18 26.5000 +29 48 46.00 J2000 GALAXY SEYFERT This object was generated by the targetselector and retrieved from the NED database. J2000 02 28 14.5000 +31 18 42.00 J2000 GALAXY SEYFERT This object was generated by the targetselector and retrieved from the NED database. J2000 09 26 3.3000 +12 44 4.00 J2000 STIS/CCD Spectroscopic No No G430M STIS/CCD Spectroscopic No No G430M STIS/CCD Spectroscopic No No G430M The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. 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(Tic-Visit :proposal-id 11611 :visit-id "04" :proposal-version -1 :trans-version "20080624" :date "14-Oct-2008 09:12:00.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 74032 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11611 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11611 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2693 :al-overhead-at-end 0 :internal-dur-at-end 382 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3028 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11611 :visit-id "05" :proposal-version -1 :trans-version "20080624" :date "14-Oct-2008 09:12:03.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 74032 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11611 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11611 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2693 :al-overhead-at-end 0 :internal-dur-at-end 382 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3028 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. 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