Spectropolarimetry of FIRST 0840 + 3633

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Description

We present Keck spectropolarimetry of a rare ``Iron Lo- BALQSO,`` FIRST 0840+3633. The continuum is {approximately}4% polarized near 2000{Angstrom} rest-frame, but falls to {approximately}2% at longer wavelengths, and maintains a relatively constant position angle of 50{degrees}. The emission lines are unpolarized. The polarization increases up to {approximately}8% in the low-ionization absorption troughs of Mg II {lambda}2800 and Al III {lambda}1860. The polarization and its position angle vary in a complicated manner across the metastable Fe II absorption lines, suggesting that more than one mechanism is at work or that the system geometry is complex.

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7 p.

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Brotherton, M.S.; Van Breugel, N.; Dey, A. & Antonucci, R. February 1, 1997.

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Description

We present Keck spectropolarimetry of a rare ``Iron Lo- BALQSO,`` FIRST 0840+3633. The continuum is {approximately}4% polarized near 2000{Angstrom} rest-frame, but falls to {approximately}2% at longer wavelengths, and maintains a relatively constant position angle of 50{degrees}. The emission lines are unpolarized. The polarization increases up to {approximately}8% in the low-ionization absorption troughs of Mg II {lambda}2800 and Al III {lambda}1860. The polarization and its position angle vary in a complicated manner across the metastable Fe II absorption lines, suggesting that more than one mechanism is at work or that the system geometry is complex.

Physical Description

7 p.

Notes

INIS; OSTI as DE98050931

Other: FDE: PDF; PL:

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  • Mass ejection from quasars, Pasadena, CA (United States), 19-21 Feb 1997

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  • Other: DE98050931
  • Report No.: UCRL-JC--127315
  • Report No.: CONF-9702136--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 302078
  • Archival Resource Key: ark:/67531/metadc683887

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  • February 1, 1997

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  • July 25, 2015, 2:20 a.m.

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  • April 6, 2017, 6:03 p.m.

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Brotherton, M.S.; Van Breugel, N.; Dey, A. & Antonucci, R. Spectropolarimetry of FIRST 0840 + 3633, article, February 1, 1997; California. (digital.library.unt.edu/ark:/67531/metadc683887/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.