H{beta} and V-band light curves of NGC 4051

DOI

We present the first results from a high sampling rate, multimonth reverberation mapping campaign undertaken primarily at MDM Observatory with supporting observations from telescopes around the world. The primary goal of this campaign was to obtain either new or improved H{beta} reverberation lag measurements for several relatively low luminosity active galactic nuclei (AGNs). We feature results for NGC 4051 here because, until now, this object has been a significant outlier from AGN scaling relationships, e.g., it was previously a ~2-3{sigma} outlier on the relationship between the broad-line region (BLR) radius and the optical continuum luminosity - the R_BLR_-L relationship. Our new measurements of the lag time between variations in the continuum and H{beta} emission line made from spectroscopic monitoring of NGC 4051 lead to a measured BLR radius of R_BLR_=1.87^+0.54^-0.50 light days and black hole mass of M_BH_=(1.73^+0.55^-0.52)x10^6^M_{sun}_. We also present a preliminary look at velocity-resolved H{beta} light curves and time delay measurements, although we are unable to reconstruct an unambiguous velocity-resolved reverberation signal.

Identifier
DOI http://doi.org/10.26093/cds/vizier.17021353
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/702/1353
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/702/1353
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/702/1353
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/702/1353
Provenance
Creator Denney K.D.; Watson L.C.; Peterson B.M.; Pogge R.W.; Atlee D.W.,Bentz M.C.; Bird J.C.; Brokofsky D.J.; Comins M.L.; Dietrich M.,Doroshenko V.T.; Eastman J.D.; Efimov YU.S.; Gaskell C.M.; Hedrick C.H.,Klimanov S.A.; Klimek E.S.; Kruse A.K.; Lamb J.B.; Leighly K.; Minezaki T.,Nazarov S.V.; Petersen E.A.; Peterson P.; Poindexter S.; Schlesinger Y.,Sakata K.J.; Sergeev S.G.; Tobin J.J.; Unterborn C.; Vestergaard M.,Watkins A.E.; Yoshii Y.
Publisher CDS
Publication Year 2011
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; High Energy Astrophysics; Natural Sciences; Observational Astronomy; Physics