–¼ŒÃ‰®‘åŠwUŒ¤XüƒOƒ‹[ƒv
–¼ŒÃ‰®‘åŠw‘åŠw‰@—ŠwŒ¤‹†‰È@‘f—±Žq‰F’ˆ•¨—ŠwêU@‰F’ˆ•¨—ŠwŒ¤‹†Žº
§464-8602 @–¼ŒÃ‰®ŽsçŽí‹æ•s˜V’¬@Tel:052-789-2921@Fax:052-789-2919
 
Home Uir Site map English
ƒwƒbƒ_[
Œ¤‹†ŽºÐ‰î Œ¤‹†ƒvƒƒWƒFƒNƒg Œ¤‹†ŠT—v Œ¤‹†¬‰Ê ƒAƒNƒZƒXƒ}ƒbƒv ‚¨–â‚¢‡‚킹 ŠÖ˜AƒŠƒ“ƒN
Œ¤‹†¬‰Ê
˜_•¶
˜_•¶ƒŠƒXƒgEnglish
1990~1999
˜_•¶ƒŠƒXƒgEnglish
2000~
˜_•¶ƒŠƒXƒg
”ŽŽm˜_•¶ƒŠƒXƒg
CŽm˜_•¶ƒŠƒXƒg
V•·‹LŽ–
 
publication
Do Normal Galaxies Host a Black Hole? The High Energy Perspective

Y. Terashima
Abstract

We review ASCA results on a search for low luminosity active nuclei at the center of nearby normal galaxies. More than a dozen low-luminosity AGN have been discovered with 2-10 keV luminosity in the range 1040-41ergs s-1. Their X-ray properties are in some respects similar to those of luminous Seyfert galaxies, but differ in other respects. We also present estimated black hole masses in low luminosity AGNs and a drastic activity decline in the nucleus of the radio galaxy Fornax A. These results altogether suggest that relics of the past luminous AGNs lurk in nearby normal galaxies.

 
Copyright (c) 2008 Nagoya University . All Rights Reserved.  
 
ƒgƒbƒvƒy[ƒW‚É–ß‚é