The puzzle of the lyman continuum polarization of qsos
Fuente:
Redalyc
Salvato in:
| Autore principale: | |
|---|---|
| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidad Nacional Autónoma de México
2001
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1876477458233950208 |
|---|---|
| author | Gregory A. Shields |
| author_facet | Gregory A. Shields |
| contents | The puzzle of the lyman continuum polarization of qsos Gregory A. Shields Eric Agol Omer Blaes Física, Astronomía y Matemáticas ACCRETION POLARIZATION ACCRETION DISKS QUASARS:GENERAL GALAXIES:ACTIVE Recent spectropolarimetry of QSOs has revealed a surprising rise in polar-ization in the Lyman continuum of several objects. We discuss several recent at-tempts to interpret this feature, including the role of Lyman limit absorption inPG 1222+228. We present new theoretical results involving electron scattering in ahot corona or wind above an accretion disk, and polarization resulting from the rel-ativistic returning radiation. These mechanisms can lead to potentially observablepolarization at short wavelengths, but neither has quantitative success in tting theobserved Lyman continuum polarization rises. A renewed capability for ultravioletspectropolarimetry from space is urgently needed to provide further clues to thenature of this phenomenon. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57101023 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.10 |
| format | Artículo científico |
| id | redalyc_57101023 |
| institution | Redalyc |
| language | en |
| publishDate | 2001 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | The puzzle of the lyman continuum polarization of qsos Gregory A. Shields Física, Astronomía y Matemáticas ACCRETION POLARIZATION ACCRETION DISKS QUASARS:GENERAL GALAXIES:ACTIVE The puzzle of the lyman continuum polarization of qsos Gregory A. Shields Eric Agol Omer Blaes Física, Astronomía y Matemáticas ACCRETION POLARIZATION ACCRETION DISKS QUASARS:GENERAL GALAXIES:ACTIVE Recent spectropolarimetry of QSOs has revealed a surprising rise in polar-ization in the Lyman continuum of several objects. We discuss several recent at-tempts to interpret this feature, including the role of Lyman limit absorption inPG 1222+228. We present new theoretical results involving electron scattering in ahot corona or wind above an accretion disk, and polarization resulting from the rel-ativistic returning radiation. These mechanisms can lead to potentially observablepolarization at short wavelengths, but neither has quantitative success in tting theobserved Lyman continuum polarization rises. A renewed capability for ultravioletspectropolarimetry from space is urgently needed to provide further clues to thenature of this phenomenon. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57101023 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.10 |
| title | The puzzle of the lyman continuum polarization of qsos |
| topic | Física, Astronomía y Matemáticas ACCRETION POLARIZATION ACCRETION DISKS QUASARS:GENERAL GALAXIES:ACTIVE |
| url | https://www.redalyc.org/articulo.oa?id=57101023 |