AGZ000cxhq - green stream

• by Dolorous_Edd

  Just curious, what is it?

  Posted February 6, 2017 2:23 PM

• by Budgieye moderator

  Hmmm. At this distance, hot hydrogen is green and hot oxygen is blue. Spectrum shows some of both. But why is it making such a thin line? I don't know. I'll ask a scientist.

  

  http://skyservice.pha.jhu.edu/DR9/ImgCutout/getjpeg.aspx?ra=327.78141208&dec=2.70148144&scale=0.09903175&width=512&height=512&opt=PGL&query=&Grid=on&Label=on&PhotoObjs=on

  327.78141208,2.7014

  search Talk

  1237678598076366983

  http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=327.7814177998577&dec=2.701493336510266

  not in SDSS dr7 footprint

  http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=327.7814177998577&dec=2.701493336510266

  CGCG 376-040

  http://skyservice.pha.jhu.edu/DR9/ImgCutout/getjpeg.aspx?ra=327.78141208&dec=2.70148144&scale=0.09903175&width=512&height=512&opt=P&query=&PhotoObjs=on

  http://skyserver.sdss.org/dr9/en/tools/explore/obj.asp?ra=327.7814177998577&dec=2.701493336510266

  Forum elizabeth Re: Zwicky galaxies by elizabeth http://www.galaxyzooforum.org/index.php?topic=276092.msg534425#msg534425

  

  http://ned.ipac.caltech.edu/cgi-bin/NEDspectra?objname=CGCG+376-040&extend=never&detail=0&preview=1&numpp=20&refcode=ANY&bandpass=ANY&line=ANY&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1

  z=0.013409

  spectrum looks like starforming, with some AGN

  ---

  similar to this galaxy?

  

  http://skyservice.pha.jhu.edu/DR10/ImgCutout/getjpeg.aspx?ra=137.629081143531&dec=54.394697588663&scale=0.2&width=200&height=200&opt=G

  http://skyserver.sdss.org/dr10/en/tools/explore/summary.aspx?id=0x112d053340d9009d&spec=0x07080c0774006800&apid=

  

  http://skyserver.sdss.org/dr10/en/get/SpecById.ashx?id=506668184229668864

  Posted February 6, 2017 3:29 PM

• by Ghost_Sheep_SWR

  Looks like most galaxies / stars around have a green upper side too. So whatever it is (starforming / tidal debris?) the colour of the upper part is likely false coloured green I think and is probably blue too.

  http://skyserver.sdss.org/dr9/en/tools/chart/navi.asp?ra=327.78141208&dec=2.70148144

  Posted February 6, 2017 3:59 PM

• by NGC3314 scientist

  The image plus spectrum suggest star formation in some kind of merger - maybe a gas-rich dwarf and more massive elliptical, say. Will put it on the list for a closer look if the opportunity comes along.

  Posted March 9, 2017 7:54 PM