• Site News

    April 1st, 2009

    By Alice

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    Shortly after the Galaxy Zoo Forum was launched, Vanny diagnosed a serious condition among many users: Galaxyzooitis. Symptoms include red eyes and tiredness, a lack of interest in the real world, expecting to see mergers, asteroids and satellites in the sky, seeing galaxies whenever the eyes are closed, an inability to stop talking about galaxies (a secondary symptom of this is incomprehensibility and a new reputation for nerdiness in the family), and, finally, an enhanced ability to see (and classify!) galaxies in Earthly phenomena such as clouds, writing and coffee.

    This led to a collaboration between myself and NGC3314, Georgia, Archi, Caro, Infinity, Milk_n_cookies, Paddy, Pat, Scaryitalian, Sophie 378 and Thornius, all of the Galaxy Zoo Forum. We have discovered a new class of galaxy, namely the Galacticat.

    It is possible to discover many different galaxy features in Galacticats, such as the tightness of the spiral arms, and to recognise interaction due to gravity.

    spirals-mergers.jpg

    Not all galacticats interact; some may be classified as “smooth”. Indeed, this project began when NGC3314 brought to my attention “The Overlap Technique”. Overlapping galaxies are extremely important tools for studying dust in the foreground galaxy, with the back one acting as a light; we collect overlapping galaxies here, and it earned us our first telescope time at Kitt Peak Observatory. NGC3314’s report on overlapping galacticats states: “The overlap technique can be used to tell how transparent or opaque the foreground system is. From this, I conclude that cats are opaque except around the edges. Ahh, the power of science!”

    overlaps-ellipticals.jpg

    Peas, or OIII-rich quasars, also commonly occur in galacticats – often, it seems, in pairs. Curiously, while SDSS peas appear to be whole galaxies or quasars, galacticats tend to have a more uneven distribution of matter and temperature, enough to isolate two small areas of OIII gas.

    peas-galacticats.jpg

    Galacticats, however, come in a great many shapes and classifications. Not all are galaxies; some are artefacts and some are stars, as Georgia demonstrates here.

    We are asking your help in keeping an eye open for further types of galacticat. While we are able to present some initial results, no statistical analysis is yet meaningful, and we are asking you to present any relevant data you have classified on the pets thread in the zoo (sadly the Galaxy Zoo classification interface currently lacks an “animal” button). NB this is not to be confused with the Galaxy Animal Zoo, which is the reverse effect of Galaxyzooitis, namely seeing Earthly objects in galaxies.

    other-galacticats.jpg

    We look forward to receiving your Galacticats!

    Full reports and our first paper can be downloaded below:

    Galacticats
    Galacticats and Citizen Science

    This entry was posted on Wednesday, April 1st, 2009 at 2:38 pm and is filed under Site News. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.
  • 7 Comments

    Take a look at some of the responses we have had to this article.

    1. Apr 1st

      A appropriate discovery for the Year of Catstronomy http://www.forumastronautico.it/index.php?topic=9596.0

    2. So, Alice you are the real CAT WOMAN. I suspect that you are actually working for the RSPCA. Thanks for the nice photos of the GALACTIC CATS anyway.

      JKHC.

    3. Apr 1st

      Hey… what will we do for the 100 Hours of Catstronomy?
      G.

    4. Pat
      Apr 1st

      We need another classification for hedgehogs!!! :D

    5. Apr 1st

      Prickly, spiny and huffy? :D

      No – I don’t work for the RSPCA – though as Aida will tell you I am a slave to two adorable fluffy tortoiseshells, Izzy and Cassie! I have heard some bad news about the RSPCA, though I can’t find anything definite to say whether it is true or not: that apparently due to the recession they now put down sick animals rather than treat them, and don’t tell people about alternative local charities which could help. Local charities are good; Izzy and Cassie came from one as little kittens abandoned in a shed . . .

      Paolo – hahahaha great web page :D

    6. Apr 2nd

      Alice, I’m glad you like it. If you follow the LOLspace links in the posts, you’ll find more space-related LOLcats.

    7. zeus2007
      Apr 3rd

      Ah see I stop classifying and going to the forum for a day and all this new stuff comes up…I sure hope I have no future reasons to miss it again.

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