purple colour

• by CeciliaB

  The purple colour on the top of this Seyfert 1 galaxy looks quite different from the blue colour one usually sees in a starburst galaxy. Could this be worth investigating futher? There is nothing much in NED.

  Posted January 13, 2017 10:21 PM

• by Budgieye moderator

  It is a "purple pea", the spectrum shows blue starforming at 4000 and red hot hyrogen at 7000, blue + red = magenta which purple.

  !

  http://skyservice.pha.jhu.edu/DR9/ImgCutout/getjpeg.aspx?ra=10.91694515&dec=-10.58467585&scale=0.2&width=200&height=200&opt=G

  

  http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=10.916979510911457&dec=-10.584587457992674

  http://skyserver.sdss.org/dr9/en/get/specById.asp?id=738657170257635328

  For more info see

  PAGE 2 Galaxy Redshift Chart https://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0000ulp?page=2

  PAGE 3 Spectra guide for SDSS images in Galaxy Zoo Talk https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ulp?page=3&comment_id=53fef2ee3d5a77490c0001b6

  Posted January 13, 2017 10:33 PM

• by CeciliaB

  Thanks. There is a lot to learn!

  Posted January 13, 2017 10:45 PM