Astroffiseg

	Seryddiaeth
	Lleuad; Planed; Seren; Galaeth; Bydysawd; Astroffiseg; Cosmoleg; Nifwl;

Astroffiseg
Enghraifft o'r canlynol	disgyblaeth academaidd, cangen o wyddoniaeth
Math	seryddiaeth, ffiseg
Yn cynnwys	gwyddoniaeth y planedau
	Ffeiliau perthnasol ar Gomin Wicimedia

Ni chefnogir y fersiwn argraffadwy bellach ac efallai y bydd gwallau rendro. Diweddarwch eich nodau tudalen a defnyddiwch y nodweddion argraffu arferol yn eich porwr.

Astroffiseg yw'r gangen o seryddiaeth sy'n delio â ffiseg a chemeg y bydysawd h.y. gwneuthuriad ffisegol y planedau, y sêr a gwrthrychau eraill yn hytrach na'u lleoliad neu symudiad drwy'r gofod. Mae hyn yn cynnwys priodweddau megis dwysedd, tymheredd, cyfansoddion cemegol a goleuedd o wrthrychau wybrennol e.e. galaethau, sêr, planedau, planedau allheulol, a'r cyfrwng rhyngserol, yn ogystal a'i rhyngweithiadau.^[1]^[2]

Diagram o'r 20C cynnar yn dangos y sbectrwm elfennaol, solar a seryddol.

Astudir pelydriad (radiation) y gwrthrychau hyn; gwneir hynny ar draws y sbectrwm elecromagnetig, gyda nifer o briodweddau gan gynnwys disgleirdeb (luminosity), dwysedd, tymheredd a chyfansoddiadau cemegol. Gan fod astroffiseg yn faes mor eang astudir ystod eang o feysydd gan gynnwys mecaneg, electromagneteg, mecaneg ystadegol, thermodeinameg, mecaneg cwantwm, Damcaniaeth perthnasedd, ffiseg niwclear a gronynnol a ffiseg atomig, moleciwlar ac optegol.

Cyfeiriadau

↑ Keeler, James E. (Tachwedd 1897), "The Importance of Astrophysical Research and the Relation of Astrophysics to the Other Physical Sciences", The Astrophysical Journal 6 (4): 271–288, Bibcode 1897ApJ.....6..271K, doi:10.1086/140401, "[Astrophysics] is closely allied on the one hand to astronomy, of which it Mai properly be classed as a branch, and on the other hand to chemistry and physics.… It seeks to ascertain the nature of the heavenly bodies, rather than their positions or motions in space–what they are, rather than where they are.… That which is perhaps most characteristic of astrophysics is the special prominence which it gives to the study of radiation."
↑ "astrophysics". Merriam-Webster, Incorporated. Archifwyd o'r gwreiddiol ar 10 Mehefin 2011. Cyrchwyd 2011-05-22. Unknown parameter |deadurl= ignored (help)

[1] Keeler, James E. (Tachwedd 1897), "The Importance of Astrophysical Research and the Relation of Astrophysics to the Other Physical Sciences", The Astrophysical Journal 6 (4): 271–288, Bibcode 1897ApJ.....6..271K, doi:10.1086/140401, "[Astrophysics] is closely allied on the one hand to astronomy, of which it Mai properly be classed as a branch, and on the other hand to chemistry and physics.… It seeks to ascertain the nature of the heavenly bodies, rather than their positions or motions in space–what they are, rather than where they are.… That which is perhaps most characteristic of astrophysics is the special prominence which it gives to the study of radiation."

[2] "astrophysics". Merriam-Webster, Incorporated. Archifwyd o'r gwreiddiol ar 10 Mehefin 2011. Cyrchwyd 2011-05-22. Unknown parameter |deadurl= ignored (help)

[1]

[2]