NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-24 T07:31:07 PDT
Help | Comment | NED Home

For refcode 2006A&A...456..467F:
Retrieve 178 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by European Southern Observatory (ESO). Reproduced by permission
2006A&A...456..467F A new sample of bright galaxy pairs in UZC Focardi, P.; Zitelli, V.; Marinoni, S.; Kelm, B. Abstract. Aims. We present a new sample of bright galaxy pairs extracted applying an objective selection code to the UZC catalog. The sample is volume-limited to M_zw_ = -18.9 +5 log {h} and contains 89 galaxy pairs. Methods: We analyze the kinematical, morphological, and photometrical properties of galaxies belonging to this sample. Results: We show that velocity separation, mid{DELTA} v_rmid, between pair members is significantly lower in spiral type (S+S) pairs than in early-type (E+E) and mixed (E+S) pairs. This indicates that truly isolated galaxy pairs are more likely to be found among S+S pairs. We show that ellipticals are rare and underluminous in B and that late spirals (T >= 4) are overluminous. Conclusions: We confirm that the formation of bright ellipticals is a phenomenon linked to group/cluster environment. while galaxy-galaxy interaction may enhance the blue luminosity of disk galaxies through SF phenomena. This last statement is supported by the presence of strong FIR emission from early spirals in this sample and by the high frequency of the AGN/SB phenomenon, revealed mainly in pairs of low relative radial velocity separation showing signs of interaction. Key words: galaxies: general, galaxies: fundamental parameters, galaxies: interactions
Retrieve 178 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home