EARLY STAGES IN THE EVOLUTION OF PROTOPLANETARY DISKS
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2009
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| _version_ | 1876433075337953280 |
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| author | J. Hernández |
| author_facet | J. Hernández |
| contents | EARLY STAGES IN THE EVOLUTION OF PROTOPLANETARY DISKS J. Hernández N. Calvet L. Hartmann C. Briceño A. K. Vivas J. Muzerolle R. Gutermuth Física, Astronomía y Matemáticas stars: pre main sequence Planetary systems: protoplanetary disks Spitzer Space Telescope observations are an important tool for understanding the rst stages of protoplanetary disk evolution and planet formation. These observations indicate that primordial disks around young stars dissipate in a few millions of years (Myr), and this evolution shows a strong dependence on stellar masses. Recent studies in the Orion OB1 association have shown that second generation disks (debris disks) around A type stars due to collisional cascades between solid bodies can be formed within 10 Myr, while the lifetime of primordial disks around these objects is less than 3 Myr. In contrast, studies of the fraction of the disk-bearing stars in several star formation regions indicate that the characteristic time for primordial disk dissipationaround low mass stars (spectral types K5 or later) is 5-7 Myr, showing an overall decrease in disk emission between 1 to 10 Myr. This contribution shows the main results from studies in the Orion OB1 stellar association combining SPITZER and 2MASS catalog data with optical data obtained in the CIDA Variability Survey. 2009 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57115758024 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.35 |
| format | Artículo científico |
| id | redalyc_57115758024 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | EARLY STAGES IN THE EVOLUTION OF PROTOPLANETARY DISKS J. Hernández Física, Astronomía y Matemáticas stars: pre main sequence Planetary systems: protoplanetary disks EARLY STAGES IN THE EVOLUTION OF PROTOPLANETARY DISKS J. Hernández N. Calvet L. Hartmann C. Briceño A. K. Vivas J. Muzerolle R. Gutermuth Física, Astronomía y Matemáticas stars: pre main sequence Planetary systems: protoplanetary disks Spitzer Space Telescope observations are an important tool for understanding the rst stages of protoplanetary disk evolution and planet formation. These observations indicate that primordial disks around young stars dissipate in a few millions of years (Myr), and this evolution shows a strong dependence on stellar masses. Recent studies in the Orion OB1 association have shown that second generation disks (debris disks) around A type stars due to collisional cascades between solid bodies can be formed within 10 Myr, while the lifetime of primordial disks around these objects is less than 3 Myr. In contrast, studies of the fraction of the disk-bearing stars in several star formation regions indicate that the characteristic time for primordial disk dissipationaround low mass stars (spectral types K5 or later) is 5-7 Myr, showing an overall decrease in disk emission between 1 to 10 Myr. This contribution shows the main results from studies in the Orion OB1 stellar association combining SPITZER and 2MASS catalog data with optical data obtained in the CIDA Variability Survey. 2009 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57115758024 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.35 |
| title | EARLY STAGES IN THE EVOLUTION OF PROTOPLANETARY DISKS |
| topic | Física, Astronomía y Matemáticas stars: pre main sequence Planetary systems: protoplanetary disks |
| url | https://www.redalyc.org/articulo.oa?id=57115758024 |