CG4 Proposal

Identifiers (aliases) for CG 4 ... BHR 21, Sandqvist 103, FEST 2-30, DCld 259.4-12.7

I found this by typing CG4 into SIMBAD. The results were in the middle of the page. Scrolling down further, there's a list of 20 articles in which CG 4 is mentioned.

Talk to you on Wednesday! --chj

My Plan to continue Lit. search--Mallory 23:35, 11 January 2010 (PST) is to finish SIMBAD, then go to ADS and to find a way to confirm and quantify lots! of IR (probably by opacity class) and little UV/max not to exceed a threshold to be determined; don't want the object to be a middle-aged star already.

Is it the group's intention to consider locations outside of CG4, which could be cluster members?

--Mallory 23:28, 11 January 2010 (PST)Carolyn

In a search through SIMBAD for CG 4 info, some interesting info and unanswered questions have emerged.

 If a gaseous region were collapsing due to a radiation-driven implosion, what's to stop it from rebounding back out, and how would we know the mechanism had occurred? Maybe by the length of tails (also created by outward pressures)? Is this a safe assumption?
 There seems to be a conflict between different analyses as to whether tails can be traced by CO(12) spectra. How to resolve?  
 If collapse/expansion, and rotation can occur all in the same region, are there any tools other than redshift to sort out what is happening?
 Interesting that there could be more than one "Center of Influence' in a region, i.e. massive star,--Mallory 15:48, 12 January 2010 (PST) whose radiation influences the CG's evolution.

chj, I'm not closely enough focused? Your ideas and suggestions?

I'll continue info-gathering. You know, this is grinding but fun; it's interesting, and I'm figuring that the Laws of Physics are the same throughout the Universe. -C