Galaxy Zoo Talk

Clockwise / counterclockwise galaxy pairs

  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    I was wondering if spiral galaxies that originated near each other always have oppositie spins. Does this makes sense or is there any literature about this?

    There seems to be a lot available about the average spin direction of spiral galaxies in the universe but not specifically on pairs.

    Posted

  • Budgieye by Budgieye moderator

    Try this

    Interacting galaxies: co-rotating and counter-rotating systems with tidal tails http://arxiv.org/abs/1312.0560
    blication: Galaxy Zoo: a correlation between the coherence of galaxy spin chirality and star formation efficiency by Jimenez, Raul; Slosar, Anže; Verde, Licia; Bamford, Steven; Lintott, Chris; Schawinski, Kevin; Nichol, Robert; Andreescu, Dan; Land, Kate; Murray, Phil; Raddick, M. Jordan; Szalay, Alex; Thomas, Daniel; Vandenberg, Jan http://adsabs.harvard.edu/abs/2010MNRAS.404..975J Very distant and therefore young galaxies have a slight alignment of spin direction, probably from being formed from the filament.

    The number of co-rotating systems is approximately twice the number of
    counter-rotating pairs which could be owed to a more rapid evolution
    of counter-rotating systems, besides possible different initial
    conditions of these interacting pairs.

    Posted

  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    Thanks! Of course co-rotating pairs also make sense...

    Anyway just realised in time co-rotating could become counter and vice versa due to 'polar' rotating of 1 of the spirals

    You really have good references, sources and links for every subject it seems

    Posted