Reverberation mapping of the Seyfert 1 NGC 7469
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https://b2find.eudat.eu/dataset/ec14a41a-9e23-50fb-9769-7a70802f7eb3
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A large reverberation-mapping study of the Seyfert 1 galaxy NGC 7469 has yielded emission-line lags for H{beta} {lambda}4861 and He II {lambda}4686 and a central black hole mass...
