Talk:Elliptical galaxy

message: The figure of 70% quoted in the intro was completely wrong: ellipticals make up around 10-15% of galaxies in the field in the local universe.  Even in the centers of clusters (where ellipticals are more common) it only rises to ~40%.  I've corrected it. Cosmo0 16:46, 15 September 2007 (UTC)
thread_title:  Elliptical fraction 

message: I am finding spam from spambots edit it now.  — Preceding unsigned comment added by 173.49.151.155 (talk) 14:31, 17 October 2013 (UTC)
thread_title:  Random Jibberish MUST FIX 

message: Just wondering. It receives on average 10 views a day only Tetra quark (talk) 19:19, 29 December 2014 (UTC)
replies: text: Nope, it's received nearly 10000 views so far this month . Also, view count is definitely correlated with importance, but I'd imagine if I did a regression and found the R-squared value, it would be quite low. StringTheory11 (t • c) 20:34, 29 December 2014 (UTC)
thread_title:  How is this a top important article? 

message: Hi people, 
I added a tag requesting more inline citations, for the whole article. Quite a few of the paragraphs are plagued by this, and at times it is not clear which citation relates to which (and how many) sentences.
It seemed (to me at least) that someone went a bit gang ho with the Ho textbook. If someone believes that they can dig in to it, extract SPECIFIC citations from that book that back up claims and return here and add them to said claims, by all means please do it. But until this is done, wherever I see sentences along the lines of "it is believed that" and then dropping a blanket ISBN code, I will keep asking for more specific citations.
Finally, I added that elliptics are an active area of research (because it is) and an unsolved problem in physics (because it is). If someone knows a tag/template for this please add it. Furthermore, I am asking for a better source for Milky Way on its way to collide with Andromeda. Nice nasa picture, sure, and makes a fancy headline, allright, but wikipedia is neither a fancy headline factory nor a fancy picture collection. If someone claims that Milky Way is on a collision course with Andromeda, I would like to see vectors, math, and perhaps an arxiv paper or two. 
I think this makes sense, 
C4 yourself (talk) 23:44, 13 March 2015 (UTC)
replies: text: Also in the citation, I do not think phrase, "It is believed that black holes..." should be in this section. It is a general phrase with no citation.Ahanania (talk) 00:16, 22 January 2017 (UTC)
thread_title:  'Evolution' section, plus explaining my minor edits 

message: Are these articles of interest to this article?
The news article and study article describe how a compact elliptical galaxy may be sent into space
after interaction with the gravity of 2 other galaxies.  
news.nationalgeographic.com 2015-04-23 How a Galaxy Can Get Booted From Its Home
www.sciencemag.org April 2015 Isolated compact elliptical galaxies: Stellar systems that ran awayJcardazzi (talk) 15:09, 24 April 2015 (UTC)
thread_title: Compact elliptical galaxies

message: I haven't found an actual source that explicitly states the most salient visual feature of M87, IC 1101, etc.
The bodies of the galaxies appear, almost entirely, to a layperson to consist of that luminous mass.
So what is it? Bits and pieces of info suggest ellipticals are strongly deficient in dust and gas, but then other sources suggest otherwise.
If there's a sufficiency of dust and gas, is it irradiated dust that is glowing? Is it ionized gas excited by irradiation from the black-hole's accretion disk? or from the stellar winds of the aggregate billions (and even trillions) of constituent stars?
Is that body of luminescence those very stars themselves—that is to say, when you're looking at that glow, you are looking at its very stars themselves—irresolvable by any telescope? Or a combination of those factors?
This seems to me to be an absurdly elementary and obvious question that shouldn't even need to be asked. Any basic description of the sun will quickly get to the photosphere, the corona, etc. and spell out their contributions to that radiant orb in the sky. JohndanR (talk) 22:56, 22 May 2018 (UTC)
replies: text: It's just the stars. You're seeing the combined light of many billions of stars within the galaxy. If that's not sufficiently clear from the article then maybe a brief statement to that effect could be added somewhere. Aldebarium (talk) 15:19, 24 May 2018 (UTC)
thread_title:  What ''IS''  the diffuse glow of elliptical galaxies? 

message: The terms "late type galaxy" and "early type galaxy" appear in various articles including this one. In what article is the distinction discussed? We should link to it. Jim.henderson (talk) 01:50, 16 March 2022 (UTC)
thread_title:  Late type 

message: This article states:
"Originally, Edwin Hubble hypothesized that elliptical galaxies evolved into spiral galaxies..."
However, the "Hubble sequence" article states that "This nomenclature is the source of the common, but erroneous, belief that the Hubble sequence was intended to reflect a supposed evolutionary sequence...", and even features a cited quote from Hubble himself. Needs correcting. 188.147.108.144 (talk) 10:53, 6 October 2023 (UTC)
thread_title:  Incorrect with regard to Hubble evolutionary belief