Supermassive BH with accretion rates in AGN. XIV.

We report the results of a long-duration high-cadence reverberation mapping campaign of a second batch of 11 PG quasars using the 2.2m telescope at the Calar Alto Observatory. This follows a similar earlier study of another sample of 15 objects reported by Hu+ (2021, J/ApJS/253/20). Among the 11 PG quasars, eight objects have the H{beta} time lags measured for the first time, while the other three objects were observed in previous campaigns but only had highly uncertain H{beta}-lag measurements. Long-term light curves are presented of photometric V-band, spectroscopic 5100{AA} continuum, and the H{beta} emission line, lasting for ~3-6yr with a cadence of ~6-14d. Accurate H{beta} time lags ranging from ~20 to 150 days in the rest frame are obtained. The estimated virial masses of the central supermassive black holes range from ~(3-300)x10^7^M_{sun}_. Combining these results with those reported in Hu+ (2021), we now have 26 PG quasars, with representative properties, having reliable H{beta} time-lag measurements from our long-duration high-cadence campaign. A tentative fit to the relation between the H{beta} time lag and the continuum luminosity for these 26 objects gives a slope of 0.53.

Cone search capability for table J/ApJS/278/61/table1 (Objects and observations)

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/278/61
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/278/61
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/278/61
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/278/61
Provenance
Creator Hu C.; Yao Z.-H.; Chen Y.-J.; Songsheng Y.-Y.; Wang Y.-L.; Yang S.,Zhang H.; Guo W.-J.; Du Pu; Li Y.-R.; Xiao M.; Liu J.-R.; Bai H.-R.,Fang F.-N.; Fu Y.-X.; Peng Y.-C.; Zhai S.; Bai J.-M.; Ho L.C.,Brotherton M.S.; Aceituno J.; Winkler H.; Wang J.-M.,SEAMBH collaboration
Publisher CDS
Publication Year 2026
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; Cosmology; Galactic and extragalactic Astronomy; High Energy Astrophysics; Interdisciplinary Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy