Driver SP
Astrophys J. 1999 Dec 1;526(2):L69-L72. doi: 10.1086/312379.
From the Hubble Deep Field catalog recently presented by Driver et al., we derive the local (0.3<z<0.5) bivariate brightness distribution of field galaxies within a 326 Mpc3 volume-limited sample. The sample contains 47 galaxies which uniformly sample the underlying galaxy population within the specified redshift, magnitude, and surface brightness limits (0.3<z<0.5, -21.3<MB<-13.7 mag, 18.0<µB<24.55 mag arcsec-2). We conclude that (1) a luminosity-surface brightness relation exists for both the field and cluster galaxy populations, MB approximately &sqbl0;&parl0;1.5+/-0.2&parr0;µe-&parl0;50+/-2&parr0;&sqbr0;, (2) luminous low surface brightness galaxies account for less than 10% of the L* population, and (3) low-luminosity low surface brightness galaxies outnumber Hubble types by a factor of approximately 1.4; however, their space density is not sufficient to explain the faint blue excess either by themselves or as faded remnants. In terms of the local luminosity density and galaxy dynamical mass budget, normal galaxies (i.e., the Hubble tuning fork) contribute 88% and 72%, respectively. This compares to 7% and 12% for dim galaxies and 5% and 16% for dwarf galaxies (within the above specified limits).
从Driver等人最近公布的哈勃深场星表中，我们得出了在一个326兆秒差距³的体积限制样本内，场星系的局部（0.3<z<0.5）双变量亮度分布。该样本包含47个星系，它们在指定的红移、星等和表面亮度限制（0.3<z<0.5，-21.3<MB<-13.7星等，18.0<µB<24.55星等 弧秒⁻²）内均匀地对基础星系群体进行抽样。我们得出结论：（1）场星系和星系团星系群体都存在光度-表面亮度关系，MB近似于﹝1.5±0.2﹞﹝µe-﹝50±2﹞﹞；（2）亮的低表面亮度星系占L*群体的比例不到10%；（3）低光度低表面亮度星系的数量比哈勃类型多约1.4倍；然而，它们的空间密度无论是自身还是作为衰退遗迹，都不足以解释微弱的蓝色过剩。就局部光度密度和星系动力学质量预算而言，正常星系（即哈勃音叉星系）分别贡献88%和72%。相比之下，暗星系贡献7%和12%，矮星系贡献5%和16%（在上述指定限制内）。
