Additional LSB galaxies were searched for using (primarily) two techniques:

  1. Photographic plates were re-examined, often using better search techniques

    1988 Davies, Phillips, and Disney (1988d) announced the discovery of a new galaxy with a prominent bulge and large, extremely low surface brightness disc. Again, the galaxy (GP1444) was found accidentally - this time while obtaining a `blank' sky frame for a CCD camera. The bulge componant of GP1444 is on the faint end of normal, with R =3.2 arcsec and M -15.8. The disk, however, has a scale length of 22 arcsec and a central surface brightness of 26.4 R, or approximately 27.6 B.

    1988 Impey, Bothun, and Malin used a method devised by Malin (1978) to search the UK Schmidt plates of the Virgo cluster. 137 low surface brightness galaxies were found,27 of which were new detections.

    Also in 1988 Davies et. al. (1988c) looked at the UKSTU plates in the Fornax region, finding 189 galaxies with 22.0(0) 24.5. Found that dwarf galaxies populate the entire range of photometric parameters (spec. surface brightness and scale length)

    1990, Bothun et.al. announced the discovery of another giant lsb galaxy, similar to Malin I. The galaxy was found through inspecting the Second Palomar Sky Survey plates. The surface brightnessof this galaxy (F568-6) was given as 23.4 +/- 0.1 mag/arcsec

  2. New photographic plates and CCD images were taken of areas of high galactic density, i.e.:

    Schwartzenberg, et. al. (1995) carried out a deep CCD survey of fields near the South Galactic Pole which are devoid of "normal" HSB galaxies. The found more than 500 objects with (0) align=top>22.5

    Davies, et.al. (1988a) took CCD images of apparently empty sky regions in the A1367 cluster and found 83 galaxies with (0) > 21 R, and r 4".

references