2016/02/22 by Aaron J. Barth, A. J. Barth, Misty C. Bentz +1 · 8 citations
Chemistry · Mathematics · Physics and Astronomy · #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Calibration #Chemistry #Flux (metallurgy) #Galaxies: Formation, Evolution, Phenomena #Galaxy #Gamma-ray bursts and supernovae #Geography #Geometry #Line (geometry) #Mathematics #Period (music) #Physics #Quantum mechanics #Spectral line #Zhàng #astro-ph.GA
paper · pdf · doi:10.1093/mnrasl/slw030
published in Monthly Notices of the Royal Astronomical Society Letters 458(1), L109-L113 (Oxford University Press) · Response to Zhang & Feng 2016, MNRAS Letters, 457, L64 (arXiv:1512.07673). Accepted for publication in MNRAS Letters. 5 pages, 2 figures
openalex publication_date 2016/02/22 · arxiv created 2016/02/27 · arxiv updated 2016/03/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract Using archival data from the 2008 Lick AGN Monitoring Project, Zhang & Feng claimed to find evidence for flux variations in the narrow [O iii] emission of the Seyfert 1 galaxy Mrk 142 over a two-month time span. If correct, this would imply a surprisingly compact size for the narrow-line region. We show that the claimed [O iii] variations are merely the result of random errors in the overall flux calibration of the spectra. The data do not provide any support for the hypothesis that the [O iii] flux was variable during the 2008 monitoring period.