Soft X-ray emission lines from a relativistic accretion disk in MCG -6-30-15 and Mrk 766

Details Soft X-ray emission lines from a relativistic accretion disk in MCG -6-30-15 and Mrk 766 Soft X-ray emission lines from a relativistic accretion disk in MCG -6-30-15 and Mrk 766

2000-11-08

arxiv.org/abs/astro-ph/0011167v1

Astron.Astrophys.365:L 140,2001

Astronomy and Astrophysics

Astrophysics

6 pages, 4 Postscript figures; accepted for publication in A&A Letters, special XMM-Newton issue, Feb. 2001

Scientific paper

10.1051/0004-6361:20000209

XMM-Newton Reflection Grating Spectrometer (RGS) spectra of the Narrow Line Seyfert 1 galaxies MCG -6-30-15 and Mrk 766 are physically and spectroscopically inconsistent with standard models comprising a power-law continuum absorbed by either cold or ionized matter. We propose that the remarkably similar features detected in both objects in the 5 - 35 A band are H-like oxygen, nitrogen, and carbon emission lines, gravitationally redshifted and broadened by relativistic effects in the vicinity of a Kerr black hole. We discuss the implications of our interpretation, and demonstrate that the derived parameters can be physically self-consistent.

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