by neufer » Sun May 17, 2020 12:07 pm
Ann wrote: ↑Sun May 17, 2020 5:20 am
MarkBour wrote: ↑Sun May 17, 2020 3:54 am
Would it be fair to say that the larger the star, the more turbulent and irregularly shaped its photosphere? And perhaps also, the more mottled its appearance would be, were we able to resolve it?
I guess, to qualify my question, I'm wondering about models of stellar dynamics that are made by those more clever than I, and I'm asking if those models show any of these trends as correlated with size. The question may depend on the evolution of the star. For instance, when Sol becomes a red giant as predicted, it may act quite differently than a high-mass giant.
Hey, I'm chiming in as an expert of stellar evolution modelling...
- I'm very good at integral and differential calculus,
I know the scientific names of beings animalculous;
In short, in matters both mundane and really rather quite bazaar,
I am the very model of a mottled Major-Giant star.
https://www.etymonline.com/search?q=mottled wrote:
mottle (n.) "a pattern or arrangement of marks or blotches of different colors or shades," 1670s, probably a back-formation from motley.
motley (adj.) late 14c., "parti-colored, variegated in color" (originally of fabric), from Anglo-French motteley, a word of unknown origin, perhaps based on Old English mot "speck" or a cognate Germanic word (see mote). But Klein's sources say probably from Gaulish. Century Dictionary rejects both. "Diversified in color," especially of a fool's dress. Hence, allusively, "a fool" (1600). As a noun meaning "cloth of contrasting mixed color" from late 14c.
https://www.etymonline.com/search?q=model wrote:
model (n.) 1570s, "likeness made to scale; architect's set of designs," from Middle French modelle (16c., Modern French modèle), from Italian modello "a model, mold," from Vulgar Latin *modellus, from Latin modulus "a small measure, standard," diminutive of modus "manner, measure". Sense of "a standard for imitation or comparison, thing or person that serves or may serve as a pattern or type" is from 1630s.
- If the Model Boy was in either of these Sunday-schools, I did not see him. The Model Boy of my time—we never had but the one—was perfect: perfect in manners, perfect in dress, perfect in conduct, perfect in filial piety, perfect in exterior godliness; but at bottom he was a prig; and as for the contents of his skull, they could have changed place with the contents of a pie and nobody would have been the worse off for it but the pie.["Mark Twain," "Life on the Mississippi," 1883]
Meaning "motor vehicle of a particular design" is from 1900 (such as Model T, 1908; Model A, 1927; Ford's other early models included C, F, and B). Sense of "artist's model, living person who serves as the type of a figure to be painted or sculpted" is recorded by 1690s; that of "fashion model" is from 1904. German, Swedish modell, Dutch, Danish model are from French or Italian.
- I know our mythic history, King Arthur's and Sir Caradoc's,
I answer hard acrostics, I've a pretty taste for paradox,
I quote in elegiacs all the crimes of Heliogabalus,
In conics I can floor peculiarities parablous.
I can tell undoubted Raphaels from Gerard Dows and Zoffanies,
I know the croaking chorus from the Frogs of Aristophanes,
Then I can hum a fugue of which I've heard the music's din afore,
And whistle all the airs from that infernal nonsense Pinafore.
Then I can write a washing bill in Balylonic cuneiform,
And tell you every detail of Caractacus's uniform;
In short, in matters both mundane and really rather quite bazaar,
I am the very model of a mottled Major-Giant star.
[quote=Ann post_id=302233 time=1589692819 user_id=129702]
[quote=MarkBour post_id=302230 time=1589687652 user_id=141361]
[b][color=#FF0000]Would it be fair to say that the larger the star, the more turbulent and irregularly shaped its photosphere?[/color][/b] And perhaps also, the more mottled its appearance would be, were we able to resolve it?
I guess, to qualify my question, I'm wondering about models of stellar dynamics that are made by those more clever than I, and I'm asking if those models show any of these trends as correlated with size. The question may depend on the evolution of the star. For instance, when Sol becomes a red giant as predicted, it may act quite differently than a high-mass giant.[/quote]
Hey, I'm chiming in as an expert of stellar evolution modelling... :wink: [/quote]
[list][b][i][color=#0000FF]I'm very good at integral and differential calculus,
I know the scientific names of beings animalculous;
In short, in matters both mundane and really rather quite bazaar,
I am the very model of a mottled Major-Giant star.[/color][/i][/b][/list]
[quote=https://www.etymonline.com/search?q=mottled]
mottle (n.) "a pattern or arrangement of marks or blotches of different colors or shades," 1670s, probably a back-formation from motley.
motley (adj.) late 14c., "parti-colored, variegated in color" (originally of fabric), from Anglo-French motteley, a word of unknown origin, perhaps based on Old English mot "speck" or a cognate Germanic word (see mote). But Klein's sources say probably from Gaulish. Century Dictionary rejects both. "Diversified in color," especially of a fool's dress. Hence, allusively, "a fool" (1600). As a noun meaning "cloth of contrasting mixed color" from late 14c.[/quote][quote=https://www.etymonline.com/search?q=model]
model (n.) 1570s, "likeness made to scale; architect's set of designs," from Middle French modelle (16c., Modern French modèle), from Italian modello "a model, mold," from Vulgar Latin *modellus, from Latin modulus "a small measure, standard," diminutive of modus "manner, measure". Sense of "a standard for imitation or comparison, thing or person that serves or may serve as a pattern or type" is from 1630s.
[list][i][color=#0000FF]If the Model Boy was in either of these Sunday-schools, I did not see him. The Model Boy of my time—we never had but the one—was perfect: perfect in manners, perfect in dress, perfect in conduct, perfect in filial piety, perfect in exterior godliness; but at bottom he was a prig; and as for the contents of his skull, they could have changed place with the contents of a pie and nobody would have been the worse off for it but the pie.[/color][/i]["Mark Twain," "Life on the Mississippi," 1883][/list]
Meaning "motor vehicle of a particular design" is from 1900 (such as Model T, 1908; Model A, 1927; Ford's other early models included C, F, and B). Sense of "artist's model, living person who serves as the type of a figure to be painted or sculpted" is recorded by 1690s; that of "fashion model" is from 1904. German, Swedish modell, Dutch, Danish model are from French or Italian.[/quote]
[list][b][i][color=#0000FF]I know our mythic history, King Arthur's and Sir Caradoc's,
I answer hard acrostics, I've a pretty taste for paradox,
I quote in elegiacs all the crimes of Heliogabalus,
In conics I can floor peculiarities parablous.
I can tell undoubted Raphaels from Gerard Dows and Zoffanies,
I know the croaking chorus from the Frogs of Aristophanes,
Then I can hum a fugue of which I've heard the music's din afore,
And whistle all the airs from that infernal nonsense Pinafore.
Then I can write a washing bill in Balylonic cuneiform,
And tell you every detail of Caractacus's uniform;
In short, in matters both mundane and really rather quite bazaar,
I am the very model of a mottled Major-Giant star.[/color][/i][/b][/list]