Far-infrared thermal emission from the inner cooling flow region of NGC 1275

摘要: Measurements of the spatial distribution 100 micrometers emission are presented for NGC 1275, central galaxy in Perseus cluster. The is clearly resolved on a kiloparsec level, and has same flux density as seen by IRAS at an epoch when nonthermal was factor 10 higher. This which traces greater part luminosity this galaxy, thus identified thermal from dust. appears to be distributed more nearly like low-velocity H-alpha filaments core than starlight, extended radio, X-ray emission, or high velocity gas. While dust might heated star-formation region that fed cooling flow cluster, intracluster gas also energetically capable well, case would be, least present time, dominant mechanism hot large quantity 1275 unlikely have been created within flow, but probably accreted recent galactic interloper.