The Local Volume HI Survey

IC 1959 (HIPASS J0333-50) is a Magellanic barred spiral galaxy at a TRGB distance of 6.05 ± 0.14 Mpc (Tully et al. 2006). Its nearest neighbour is NGC 1311 (HIPASS J0320-52), separated by >1 Mpc. Deep H-band images of IC 1959 and NGC 1311 are analysed by Kirby et al. (2008). Using 11HUGS Lee et al. (2009) report recent star formation with a rate of 4-5 × 10^-2 M_☉/yr for IC 1959. The galaxy is also detected in LVHIS 20-cm radio continuum maps (Shao et al. 2017). Our ATCA HI data show a well-resolved, symmetric and regularly rotating disc galaxy. Minor deviations in the mean HI velocity field are seen towards the north-western (approaching) side. We measure F_HI = 26.0 Jy km/s, in agreement with HIPASS (Koribalski et al. 2004), and derive M_HI = 2.2 × 10⁸ M_☉. Using 3D FAT Kamphuis et al. (2015) obtain an HI rotation curve indicating v_rot = 65.9 km/s at R_max = 5.3 kpc (for i = 78.8 degr and PA = 149.0 degr) and M_dyn = 5.3 × 10⁹ M_☉.

Reference: Koribalski et al. 2018 * LVHIS database * LVHIS homepage * next