SIMBAD references

We detect 21-cm emission from the Low Surface Brightness (LSB) galaxy SBS 1543+593, which gives rise to a Damped-Lyα (DLyα) absorption line in the spectrum of the background QSO HS 1543+5921 (z_e=0.807). We obtain an accurate measure of the velocity of the H I gas in the LSB galaxy, v=2868km/s, and derive a mass of M_HI=1.3x10⁹M_☉. We compare M_HI with limits obtained towards two other z∼0.1 DLyα systems, and show that SBS 1543+593 would not have been detected. Hence LSB galaxies similar to SBS 1543+593 can be responsible for DLyα systems at even modest redshifts without being detectable from their 21-cm emission.