The Galaxy NGC 3882
Bärbel Koribalski
(ATNF)
Figures 1 and 2:
Neutral hydrogen distribution (top) and mean velocity field (bottom)
of the galaxy NGC 3882 (v = 1817 km/s) and a new companion galaxy,
ATCA J1147-56 (v = 1760 km/s). The HI position of ATCA J1147-56 is
11:47:00, -56:10:54.
375-m ATCA data (10 h on-source) from 19-4-1996 * B. Koribalski
(C419).
The total HI flux densities are about 32.4 Jy km/s for NGC3882 and
0.6 Jy km/s for ATCA J1147-56; beam size: 107 arcsec x 88 arcsec.
Figures 3 and 4:
Optical images of NGC 3882 (left) and a companion, ATCA J1147-56 (right;
... not much to see there), from the second generation Digitized Sky Survey.
Figure 5:
ATCA HI global spectrum of NGC3882. Also detected in HIPASS.
The HI flux density is 32.4 Jy km/s corresponding to an HI mass of about
4.4 x 10^9 Msun assuming a distance of 24 Mpc.
Figure 6:
ATCA HI global spectrum of the new galaxy, ATCA J1147-56.
The HI flux density is 0.6 Jy km/s corresponding to an HI mass of about
8.2 x 10^7 Msun assuming a distance of 24 Mpc.
Figure 7:
HIPASS spectrum of NGC 3882 (v = 1817 km/s).
bkoribal @ atnf.csiro.au