Investigating the warm absorber and X-ray variability of the Seyfert 1 galaxy NGC 3516 with XMM-Newton

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• Missagh Mehdipour, MSSL-UCL
• Wednesday 16 September 2009, 14:00-14:15
• Sackler Lecture Theatre, IoA.

If you have a question about this talk, please contact Alexander Blustin.

We present new analysis of the X-ray spectra of the Seyfert 1 galaxy NGC 3516 as seen by the XMM -Newton RGS and EPIC -pn in recent observations, with the emphasis put on high resolution spectroscopy. NGC 3516 shows interesting spectral and flux variability during four observations in 2006; we investigate whether this is due to absorption by the warm absorber and/or is intrinsic to the source emission. We show that the passage of an absorbing cloud, part of a clumpy disk wind model, is unable to account for this variability. Intrinsic changes in the source continuum are found to play a much more significant role in explaining the observed flux and spectral variability than originally thought for this AGN .

This talk is part of the New Results in X-ray Astronomy 2009 series.

This talk is included in these lists:

• Combined External Astrophysics Talks DAMTP
• Cosmology, Astrophysics and General Relativity
• Institute of Astronomy One-day Meetings
• Institute of Astronomy Talk Lists
• New Results in X-ray Astronomy 2009
• Sackler Lecture Theatre, IoA

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