Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..599..886r&link_type=abstract
X-RAY ASTRONOMY: Stellar Endpoints,AGN, and the Diffuse X-ray Background. Edited by Nicholas E. White, Giuseppe Malaguti, and G
Astronomy and Astrophysics
Astronomy
X-Ray Sources, X-Ray Bursts, Active And Peculiar Galaxies And Related Systems, Lenticular Galaxies
Scientific paper
ROSAT PSPC and HRI observations of the nearby type 1 Seyfert galaxy IC 4329A field show many point sources. The brightest (LX=6×1043 erg s-1) is associated with IC 4329A itself, having a single power-law spectrum (Γ=1.73) and a spectral edge-like feature at 0.7 keV. The giant lenticular companion galaxy IC 4329 is also detected, as is shocked interaction-induced gas between the IC 4329A/IC 4329 pair. Residual, unresolved emission, extending for ~200 kpc, appears two-component, with a hard, circularly-distributed, smooth component, and a softer, clumpier component to the south-east. This hard component appears itself two-component, due to the ``wings'' of IC 4329A, and to hot (~1.5 keV) galaxy group gas. The soft component may be a large ULIRG-like superwind, or a ``stripped wake'' of intragroup gas. .
Pietsch Wolfgang
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