{"product_id":"an-xmm-newton-observation-of-the-k-a-pounds-9781287283287","title":"An XMM-Newton Observation of the Seyfert 1 Galaxy 1h 0419-577 in an Extreme Low State","description":"Previous observations of the luminous Seyfert 1 galaxy 1H 0419-577 have found its X-ray spectrum to range from that of a typical Seyfert 1 with 2-10 keV power law index Gamma approx. 1.9 to a much flatter power law of Gamma approx. 1.5 or less. We report here a new XMM-Newton observation which allows the low state spectrum to be studied in much greater detail than hitherto. We find a very hard spectrum (Gamma approx. 1.0), which exhibits broad features that can be modelled myth the addition of an extreme relativistic Fe K emission line or with partial covering of the underlying continuum by a substantial column density of near-neutral gas. Both the EPIC and RGS data show evidence for strong line emission of OVII and OVIII requiring an extended region of low density photoionised gas in 1H 0419-577. Comparison with an earlier XMM-Newton observation when 1H 0419-577 was 'X-ray bright' indicates the dominant spectral variability occurs via a steep power law component.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e K. A. Pounds\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1287283284\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781287283287\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Bibliogov\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 08\/06\/2013\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 28\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.15lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.69h x 7.44w x 0.06d","brand":"K. A. Pounds","offers":[{"title":"Paperback","offer_id":47611326890239,"sku":"9781287283287","price":15.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_8a991588-c28a-4c96-a15b-e0c6975236b4.jpg?v=1764513178","url":"https:\/\/www.whiterainbookhouse.com\/products\/an-xmm-newton-observation-of-the-k-a-pounds-9781287283287","provider":"WR Book House","version":"1.0","type":"link"}