NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Markarian 315: A test case for the active galactic nucleus-merger hypothesis?Using the Hubble Space Telescope (HST) Wide Field/Planetary Camera, (WF/PC) we have detected a diffuse continuum knot in the inner regions of the Seyfert galaxy Markarian 315. This knot may be a remnant nucleus. It is associated with a complex, ringlike structure in both the continuum and ionized gas emission. We have measured the kinematics of the ionized gas in two position angles and find velocities which are consistent with a nonaxisymmetric gravitational disturbance. The galaxy is associated with an extended ionized filament, or tidal tail, and our measurements show that the ionized gas in this feature is redshifted by up to 500 km/s in the line of sight relative to the Seyfert nucleus. This combination of morphological and kinematic features suggests that Mrk 315 has suffered a disruptive, tidal interaction which has significantly influenced regions within 1 kpc of its nucleus.
Document ID
19950036442
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mackenty, John W. (Space Telescope Science Inst. Baltimore, MD, United States)
Simkin, Susan M. (Michigan State Univ. East Lansing, MI, United States)
Griffiths, Richard E. (Johns Hopkins Univ. Baltimore, MD, United States)
Ulvestad, James S. (Jet Propulsion Lab. Pasadena, CA, United States)
Wilson, Andrew S. (Space Telescope Science Inst. Baltimore, MD, United States)
Date Acquired
August 16, 2013
Publication Date
November 1, 1994
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 435
Issue: 1
ISSN: 0004-637X
Subject Category
ASTRONOMY
Funding Number(s)
CONTRACT_GRANT: NAS5-26555
CONTRACT_GRANT: NSF AST-89-14567
Distribution Limits
Public
Copyright
Other