Lyman break galaxy
kahkešân bâ bore-ye Lyman
Fr.: galaxie de la coupure de Lyman
A star-forming galaxy at → high redshift affected by the → Lyman break. Such a galaxy is detected in the red (R, → photometric band) but not in the blue (U and B bands). At those high redshfits (above 2.5), the → Lyman limit at 912 Å is shifted between the U and B bands.