MCG+07-20-052: Interacting dwarf pair in a group environment
  We present an observational study of the interacting pair of dwarf galaxies,
MCG+07-20-052, in the vicinity of Milky Way mass spiral galaxy NGC 2998.
MCG+07-20-052 is located at a sky-projected distance of 105 kpc from NGC 2998
and the two have a relative line-of-sight velocity of 60 kms. We observed tidal
tail-like extensions on both members (D1 and D2) of the interacting pair
MCG+07-20-052. The interacting dwarf galaxies, D1 and D2, have B-band absolute
magnitudes of $-$17.17 and $-$17.14 mag, respectively, and D2 is significantly
bluer than D1. We obtained HI 21 cm line data of the NGC 2998 system using the
Giant Metrewave Radio Telescope (GMRT) to get a more detailed view of the
neutral hydrogen (HI) emission in the interacting dwarf galaxies and in the
galaxy members of the NGC 2998 group. Evidence of a merger between the dwarf
galaxies in the MCG+07-20-052 is also present in the HI kinematics and
morphology where we find that the HI is mostly concentrated around D2, which
also shows a higher level of star-forming activity and bluer $g-r$ color index
compared to D1. In addition, we detect extended tenuous HI emission around
another member galaxy, NGC 3006, located close to the MCG+07-20-052-pair at a
sky-projected distance of 41 kpc. We compare here our results from the
MCG+07-20-052 pair-NGC 2998 system with other known LMC-SMC-Milky Way type
systems and discuss the possible origin of the dwarf-dwarf interaction.
