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The Astronomical Journal Volume 138 Number 6 Create an alert RSS this journal

S. Mathur et al. 2009 The Astronomical Journal 138 1655 doi:10.1088/0004-6256/138/6/1655

XMM-NEWTON OBSERVATIONS OF SDSS J143030.22 – 001115.1: AN UNUSUALLY FLAT-SPECTRUM ACTIVE GALACTIC NUCLEUS

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S. Mathur1, E. C. Golowacz1, R. Williams2, R. Pogge1, D. Fields3 and D. Grupe4

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Abstract References Cited By

We present XMM-Newton observations of the type 1 active galactic nucleus (AGN) SDSS 1430 – 0011 (z = 0.1032). The low signal-to-noise ratio spectrum of this source obtained in a snap shot Chandra observation showed an unusually flat continuum. With the follow-up XMM-Newton observations, we find that the source spectrum is complex; it either has an ionized absorber or a partially covering absorber. The underlying power law is in the normal range observed for AGNs. The low flux of the source during Chandra observations can be understood in terms of variations in the absorber properties. The X-ray and optical properties of this source are such that it cannot be securely classified as either a narrow-line Seyfert 1 or a broad-line Seyfert 1 galaxy, adding to the group of sources in the "in-between" class.


Keywords

galaxies: active; galaxies: individual (SDSSJ143030.22 – 001115.1); galaxies: nuclei; X-rays: galaxies


Dates

Issue 6 (2009 December)

Received 2009 May 27, accepted for publication 2009 September 30

Published 2009 October 29



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