NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 41 of 4042
Imaging spectrophotometry of ionized gas in NGC 1068. I - Kinematics of the narrow-line region
External Online Source: doi:10.1086/168742
Author and Affiliation:
Cecil, Gerald(Institute for Advanced Study, Princeton, NJ, United States)
Bland, Jonathan(Institute for Advanced Study, Princeton, NJ, United States)
Tully, R. Brent(Hawaii, University, Honolulu, United States)
Abstract: The kinematics of collisionally excited forbidden N II 6548, 6583 across the inner 1 arcmin diameter of the nearby Seyfert galaxy NGC 1068 is mapped using an imaging Fabry-Perot interferometer and low-noise CCD. The stack of monochromatic images, which spatially resolved the high-velocity gas, was analyzed for kinematic and photometric content. Profiles agree well with previous long-slit work, and their complete spatial coverage makes it possible to constrain the gas volume distribution. It is found that the narrow-line region is distributed in a thick center-darkened, line-emitting cylinder that envelopes the collimated radio jet. Three distinct kinematic subsystems, of which the cylinder is composed, are discussed in detail. Detailed behavior of the emission-line profiles, at the few points in the NE quadrant with simple kinematics, argues that the ionized gas develops a significant component of motion perpendicular to the jet axis.
Publication Date: May 20, 1990
Document ID:
19900048254
(Acquired Nov 28, 1995)
Accession Number: 90A35309
Subject Category: ASTROPHYSICS
Document Type: Journal Article
Publication Information: Astrophysical Journal, Part 1 (ISSN 0004-637X); 355; 70-87
Publisher Information: United States
Contract/Grant/Task Num: NSF AST-86-15974; NAS8-32902
Financial Sponsor: NASA; United States
Organization Source: Institute for Advanced Study; Princeton, NJ, United States
Hawaii Univ.; Honolulu, HI, United States
Description: 19p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: IMAGING SPECTROMETERS; IONIZED GASES; SEYFERT GALAXIES; SPECTRAL LINE WIDTH; SPECTROPHOTOMETRY; EMISSION SPECTRA; FABRY-PEROT INTERFEROMETERS; FORBIDDEN TRANSITIONS; PLASMA JETS
Imprint And Other Notes: Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 355, May 20, 1990, p. 70-87.
Availability Source: Other Sources
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: August 18, 2011
Contact Us