Literaturnachweis - Detailanzeige
| Autor/in | Pinochet, Jorge |
|---|---|
| Titel | Brown Dwarfs and the Minimum Mass of Stars |
| Quelle | In: Physics Education, 54 (2019) 5, Artikel 055021 (7 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
| Zusatzinformation | ORCID (Pinochet, Jorge) |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0031-9120 |
| Schlagwörter | Astronomy; Energy; Physics; Scientific Concepts; Climate; Thermodynamics; Science Instruction; Undergraduate Students; College Students; Introductory Courses |
| Abstract | Stars form from large clouds of gas and dust that contract under their own gravity. The birth of a star occurs when a fusion reaction of hydrogen into helium is ignited in its core. The key variable that determines the formation of a star is mass. If the mass of the contracting cloud is below a certain minimum value, instead of a star, a substelar object--known as a "brown dwarf"--will form. How much mass is required for a star to form? This article aims to answer this question by means of a simple heuristic argument. The found value is ~0.016 solar masses, which is of the same order of magnitude as the accepted value, ~0.08 solar masses. This article may be useful as pedagogical material in an introductory undergraduate astronomy course. (As Provided). |
| Anmerkungen | IOP Publishing. 190 North Independence Mall West Suite 601, Philadelphia, PA 19106. Tel: 215-627-0880; Fax: 215-627-0879; e-mail: ped@ioppublishing.org; Web site: https://iopscience.iop.org/journal/0031-9120 |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2020/1/01 |
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