A Second UV "Light Bulb" behind the SN 1006 Remnant

Details A Second UV "Light Bulb" behind the SN 1006 Remnant A Second UV "Light Bulb" behind the SN 1006 Remnant

1997-07-22

arxiv.org/abs/astro-ph/9707247v1

Astronomy and Astrophysics

Astrophysics

7 pages plus 3 figures: Fig 1 is postscript, Fig 2 and Fig 3 are jpeg. Latex, uses aaspp4.sty

Scientific paper

10.1086/310850

A point X-ray source located 9 arcmin northeast of the center of SN~1006 has been spectroscopically identified as a background QSO, with a redshift of 0.335. The object is moderately bright, with magnitude V=18.3. If its ultraviolet spectrum is typical of low-z quasars, this object will be a second (after the Schweizer-Middleditch star) source to use for absorption spectroscopy of material within SN 1006. Absorption spectra provide a unique probe for unshocked ejecta within this supernova remnant, and can possibly solve the long-standing problem of "missing" iron in the remnants of Type Ia supernovae.

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