"Monitoring MRK 509
Subtitle: the origin of the reprocessor" and "Broad band X-ray spectrum of narrow line Seyfert 1 AKN 564"
By: submitted by the Trustees of Columbia University in the City of New York ; prepared by Columbia Astrophysics Laboratory, Departments of Astronomy and Physics, Columbia University ; principal investigators, Jules P. Halpern & Karen M. Leighly.
Contributors: Leighly, Karen M.; Columbia University. Trustees.; Columbia Astrophysics Laboratory (Columbia University); United States. National Aeronautics and Space Administration.
Series: NASA contractor report -- NASA CR-207611
Publisher: National Aeronautics and Space Administration; National Technical Information Service, distributor
Published: 1998
Place of publication: [Washington, DC; Springfield, Va
Language: eng
Format: Microform
Subjects: Seyfert galaxies.; Light curve.; Stellar mass.; Calibrating.; Black holes (Astronomy); Accretion disks.
Other titles: Origin of the reprocessor; Broad band X-ray spectrum of narrow line Seyfert 1 AKN 564
Notes: Shipping list no.: 99-0631.

Microfiche. [Washington, D.C. : National Aeronautics and Space Administration, 1999] 1 microfiche.