Detection of Ni 2 lambda 7378 in six Seyfert galaxies

Technical Report · Tue Jan 01 04:00:00 EST 1985

OSTI ID:6034287

Halpern, J P; Oke, J B

A line due to Ni 2 7378 in the Seyfert galaxies NGC 1068, 2110, 3227, 4151, 5506, and Arp 102 B was detected. The average Ni abundance is about 2 times solar, which is 5 times less than in the filaments of the Crab Nebula. This argues for nucleosynthetic processing in the latter. The Ni 2 line is spatially revolved in NGC 1068, and shows at least a factor of 4 enhancement in the Ni abundance away from the nucleus. The off-nuclear abundance of Ni in NGC 1068 approaches that of the Crab, which strongly suggests that type supernovae enriched the off-nuclear gas clouds.

• Research Organization: Columbia Univ., New York (USA)
• OSTI ID: 6034287
• Report Number(s): N-86-14205
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
COSMIC RADIO SOURCES
CRAB NEBULA
DATA
DETECTION
ELEMENTS
ERUPTIVE VARIABLE STARS
EXPERIMENTAL DATA
GALAXIES
INFORMATION
METALS
NEBULAE
NICKEL
NUCLEOSYNTHESIS
NUMERICAL DATA
RED SHIFT
SEYFERT GALAXIES
STARS
SUPERNOVA REMNANTS
SUPERNOVAE
SYNTHESIS
TRANSITION ELEMENTS
VARIABLE STARS