NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-18 T04:29:55 PDT
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For refcode 2002MNRAS.337...49E:
Retrieve 32 NED objects in this reference.
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NED Abstract

Copyright by Royal Astronomical Society. 2002MNRAS.337...49E A survey of molecular hydrogen in the central galaxies of cooling flows A. C. Edge, R. J. Wilman, R. M. Johnstone, C. S. Crawford, A. C. Fabian and S. W. Allen Abstract We present a large sample of H- and K-band spectra of 32 optically line-luminous central cluster galaxies. We find significant rovibrational H_2_ emission in 23 of these galaxies as well as H recombination and/or [Fe II] emission in another five. This represents a fourfold increase in the number of molecular line detections known. A number of the detections are of extended emission (5-20 kpc). In several objects we find significant [Si VI] emission that appears to correlate with the strength of high ionization lines in the optical (e.g. [O III]). This comprehensive sample builds on previous work and confirms that warm (1000-2500 K) molecular hydrogen is present wherever there is ionized material in the cores of cooling flows and in most cases it also coincides with CO molecular line emission. Key words: galaxies: active - galaxies: clusters: general - cooling flows - galaxies: elliptical and lenticular, cD - infrared: galaxies.
Retrieve 32 NED objects in this reference.
Please click here for ADS abstract

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