Journal
ASTROPHYSICAL JOURNAL LETTERS
Volume 704, Issue 2, Pages L80-L84Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/704/2/L80
Keywords
galaxies: active; galaxies: nuclei; galaxies: Seyfert
Categories
Funding
- National Science Foundation [AST-0604066, AST 03-07912, AST 08-03883]
- HST [HST-GO-10417, HST-AR-10691, HST-GO-10833]
- NASA [NAS5-26555]
- Russian Foundation for Basic Research [06-02-16843]
- National Academy of Sciences of Ukraine [5-20]
- U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union (CRDF) [UP1-2116, UP1-2549-CR-03]
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [0803883] Funding Source: National Science Foundation
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A detailed analysis of the data from a high sampling rate, multi-month reverberation mapping campaign, undertaken primarily at MDM Observatory with supporting observations from telescopes around the world, reveals that the H beta emission region within the broad-line regions (BLRs) of several nearby active galactic nuclei (AGNs) exhibits a variety of kinematic behaviors. While the primary goal of this campaign was to obtain either new or improved H beta reverberation lag measurements for several relatively low-luminosity AGNs, we were also able to unambiguously reconstruct velocity-resolved reverberation signals from a subset of our targets. Through high cadence spectroscopic monitoring of the optical continuum and broad H beta emission-line variations observed in the nuclear regions of NGC 3227, NGC 3516, and NGC 5548, we clearly see evidence for outflowing, infalling, and virialized BLR gas motions, respectively.
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