Files and links (1)
Published, Version of Record (VoR)CC BY V4.0, Open
Journal article
Investigating the Origin of the Absorption-line Variability in the Narrow-line Seyfert 1 Galaxy WPVS 007
The Astrophysical journal, v 953(2), 186
17 Aug 2023
Abstract
Broad absorption line quasars are actively accreting supermassive black holes that have strong outflows characterized by broad absorption lines in their rest-UV spectra. Variability in these absorption lines occurs over months to years depending on the source. WPVS 007, a low-redshift, low-luminosity narrow-line Seyfert 1 (NLS1) shows strong variability over shorter timescales, providing a unique opportunity to study the driving mechanism behind this variability that may mimic longer-scale variability in much more massive quasars. We present the first variability study using the spectral synthesis code SimBAL, which provides velocity-resolved changes in physical conditions of the gas using constraints from multiple absorption lines. Overall, we find WPVS 007 to have a highly ionized outflow with a large mass-loss rate and kinetic luminosity. We determine the primary cause of the absorption-line variability in WPVS 007 to be a change in covering fraction of the continuum by the outflow. This study is the first SimBAL analysis where multiple epochs of observation were fit simultaneously, demonstrating the ability of SimBAL to use the time domain as an additional constraint in spectral models.
Metrics
Details
- Title
- Investigating the Origin of the Absorption-line Variability in the Narrow-line Seyfert 1 Galaxy WPVS 007
- Creators
- Kaylie S. Green - Western UniversitySarah C. Gallagher - Western UniversityKaren M. Leighly - University of OklahomaHyunseop Choi - Université de MontréalDirk Grupe - Northern Kentucky UniversityDonald M. Terndrup - The Ohio State UniversityGordon T. Richards - Drexel UniversityS. Komossa - Max Planck Institute for Radio Astronomy
- Publication Details
- The Astrophysical journal, v 953(2), 186
- Publisher
- The American Astronomical Society
- Number of pages
- 21
- Grant note
- HST-GO-14693.001-A / Space Telescope Science Institute (STScI) (https://doi.org/10.13039/100013757) RGPIN-2021-04157 / Gouvernement du Canada ∣ Natural Sciences and Engineering Research Council of Canada (NSERC) (https://doi.org/10.13039/501100000038) 1518382; 2006771; 2007023 / National Science Foundation (NSF) (https://doi.org/10.13039/100000001)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:001049749100001
- Scopus ID
- 2-s2.0-85168618527
- Other Identifier
- 991021000610904721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics