HI observations of nearby dwarf galaxies

As a result we present a list of 101 nearby dwarf galaxy candidates mainly of low surface brightness which have angular diameters a>0.5'. About two thirds of the objects are new discoveries.

This sample is considered as a supplement to the 163 northern dwarf galaxy candidates (1998, Cat., <J/A+AS/127/409>) which have been detected in the same declination range around the known Local Volume galaxies and to the 78 dwarf galaxy candidates (1999A&AS..135..221K) in the Local Void region. All the galaxies were observed in HI with the 100-m Effelsberg radio telescope with a detection rate of 46%. The sample of detected galaxies has the following median parameters: radial velocity V_LG_=+770km/s, HI line width W_50_=46km/s, absolute blue magnitude M_B_=-13.8mag, linear diameter A_0_=2.7kpc, hydrogen mass-to-luminosity ratio M_HI_/L_B_=1.2M_{sun}_/L_{sun}_, and the HI mass-to-total mass ratio M_HI_/M_t_=0.28.