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Intensive Spectroscopic Monitoring of the Seyfert-1 Galaxy NGC 3516

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ESA Earth Online2026-06-22 收录
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GTNGC 3516 is well matched to the spectroscopic capabilities of XMM. Theunderlying continuum varies by factor virgul2 on a timescale of virgulfew hrs, containsdeep absorption features due to ionized material along the line of sight as wellas an asymmetric Fe Kalpha line arising from the innermost regions of theaccretion disk. The ionization structure of both the absorber (using the RGS)and the profile of the Fe line will be welldetermined in virgul5ks. We propose toobserve NGC 3516 continuously for 1 orbit, allowing us to track the response ofthe absorber and of the Fe line to variations in the continuum. We propose a 5kssnapshot exposure prior to the main observations to check that the source is notin an usually low intensity state. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]

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European Space Agency
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