protostellar

См. также в других словарях:

• protostellar — adjective Of or pertaining to a protostar …   Wiktionary

• Nebular hypothesis — Star formation Interstellar medium Molecular cloud …   Wikipedia

• Sun — This article is about the star. For other uses, see Sun (disambiguation). The Sun …   Wikipedia

• Star — For other uses, see Star (disambiguation) …   Wikipedia

• Star formation — is the process by which dense parts of molecular clouds collapse into a ball of plasma to form a star. As a branch of astronomy star formation includes the study of the interstellar medium and giant molecular clouds as precursors to the star… …   Wikipedia

• Protostar — A protostar is a large object that forms by contraction out of the gas of a giant molecular cloud in the interstellar medium. The protostellar phase is an early stage in the process of star formation. For a solar mass star it lasts about 100,000… …   Wikipedia

• Hayashi track — The Hayashi track is a path taken by protostars in the Hertzsprung Russell diagram after the protostellar cloud has reached approximate hydrostatic equilibrium. In 1961 Chushiro Hayashi showed that there is a minimum effective temperature… …   Wikipedia

• J. Marvin Herndon — (b. 1944) is an American interdisciplinary scientist, who earned his BA degree in physics in 1970 from the University of California, San Diego and his Ph.D. degree in nuclear chemistry in 1974 from Texas A M University. For three years, J. Marvin …   Wikipedia

• 81P/Wild — Comet Wild 2 (81P/Wild) nucleus in 2004 Discovery Discovered by: Paul Wild Discovery date: 1978 Alternate designations: 1978 XI; 1984 XIV; 1990 XXVIII …   Wikipedia

• Stephen Hunt (author) — Stephen Hunt (born in Canada) is a British author.WorksHunt is best known for his fantasy novel For the Crown and the Dragon which won the 1994 WH Smith New Talent Prize, and was also voted best fantasy novel of 1994 by the readers of the British …   Wikipedia

• Hydroxyl radical — IUPAC name Hydroxyl radical …   Wikipedia