ERUPTIVE?

• by williamaskew

  In NED under morphology heading other than spiral it has ERUPTIVE in caps. Does that mean anything other than the obvious?

  Posted February 16, 2015 11:10 PM

• by Budgieye moderator

  Ummm,,, can you post the link to that page?

  Posted February 17, 2015 8:01 AM

• by mlpeck

  The galaxy is NGC 304. Scroll down to the classification section and click on the "Detailed Classification" link. The eruptive notation is from the Uppsala General Catalog which, remarkably, is also on NED.

  From there, section 4: Terminology explains eruptive as:

  Peculiar object with evidence of violent outflow of matter. Note that
  Zwicky (1971, p. XXX) defines "eruptive" in a different way; galaxies
  listed as "eruptive" in the present Catalogue would presumably be
  classified as "post-eruptive" by Zwicky.

  At one time a number of people (notably F. Zwicky) thought that morphological peculiarities in galaxies were the result of explosive processes.

  Posted February 17, 2015 3:16 PM

• by williamaskew

  Nice reply mipeck. exactly what i wanted to hear
  http://ned.ipac.caltech.edu/cgi-bin/NEDatt?objname=NGC+0304 link to detailed classification Budgieye

  Posted February 17, 2015 6:45 PM