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The Lick AGN Monitoring Project 2016: Velocity-resolved Hβ Lags in Luminous Seyfert Galaxies

Journal Article · · The Astrophysical Journal
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  1. Univ. of California, Irvine, CA (United States); Univ. of California, Riverside, CA (United States)
  2. Univ. of California, Irvine, CA (United States)
  3. Univ. of California, Irvine, CA (United States); Univ. of California, Davis, CA (United States)
  4. Univ. of California, Los Angeles, CA (United States)
  5. California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States)
  6. Univ. of California, Riverside, CA (United States)
  7. Univ. of California, Berkeley, CA (United States)
  8. Lick Observatory, Mt. Hamilton, CA (United States)
  9. Brigham Young Univ., Provo, UT (United States)
  10. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  11. Seoul National Univ. (Korea, Republic of)
  12. Carnegie Observatories, Pasadena, CA (United States)
  13. San Diego State Univ., CA (United States)
  14. Univ. of California, Irvine, CA (United States); Brigham Young Univ., Provo, UT (United States)
  15. Univ. of California, Davis, CA (United States); Univ. of Washington, Seattle, WA (United States)
  16. Univ. of California, Berkeley, CA (United States); Stanford Univ., CA (United States)
  17. California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States); Univ. of California, San Diego, CA (United States)
  18. California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States); Booz Allen, San Diego, CA (United States)
  19. Univ. of California, Irvine, CA (United States); Univ. Nacional Autonoma de Mexico (UNAM), Ensenada (Mexico)
  20. Univ. of California, Berkeley, CA (United States); Princeton Univ., NJ (United States)
  21. California State University, San Bernardino (CSUSB), CA (United States)
  22. Univ. of St. Andrews, Scotland (United Kingdom)
  23. San Diego State Univ., CA (United States); Space Telescope Science Institute, Baltimore, MD (United States)
  24. Univ. of California, Berkeley, CA (United States); Florida State Univ., Tallahassee, FL (United States)
  25. California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  26. Univ. of Southampton (United Kingdom)
  27. Univ. Nacional Autonoma de Mexico (UNAM), Ensenada (Mexico)
  28. Kyungpook National Univ., Daegu (Korea, Republic of); Korea Astronomy and Space Science Institute, Daejeon (Korea, Republic of)
  29. Univ. of California, Davis, CA (United States); Univ. of Texas, Austin, TX (United States)
  30. Univ. of California, Irvine, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP)
  31. Univ. of California, Riverside, CA (United States); U.S. Naval Observatory, Washington, DC (United States); George Mason Univ., Fairfax, VA (United States)
  32. California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States); California State University, Fresno, CA (United States)
  33. Univ. of California, Berkeley, CA (United States); Univ. of Wisconsin, Madison, WI (United States)
  34. California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States); Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  35. Univ. of California, Davis, CA (United States)
  36. Texas A & M Univ., College Station, TX (United States)
  37. Univ. of California, Berkeley, CA (United States); Univ. of Oklahoma, Norman, OK (United States)
+ Show Author Affiliations
We carried out spectroscopic monitoring of 21 low-redshift Seyfert 1 galaxies using the Kast double spectrograph on the 3 m Shane telescope at Lick Observatory from 2016 April to 2017 May. Targeting active galactic nuclei (AGNs) with luminosities of λL$$_{λ}$$(5100 Å) ≈ 10$$^{44}$$ erg s$$^{-1}$$ and predicted Hβ lags of ~20–30 days or black hole masses of 10$$^{7}$$–10$$^{8.5}$$M$$_{⊙}$$, our campaign probes luminosity-dependent trends in broad-line region (BLR) structure and dynamics as well as to improve calibrations for single-epoch estimates of quasar black hole masses. Here we present the first results from the campaign, including Hβ emission-line light curves, integrated Hβ lag times (8–30 days) measured against V-band continuum light curves, velocity-resolved reverberation lags, line widths of the broad Hβ components, and virial black hole mass estimates (10$$^{7.1}$$–10$$^{8.1}$$M$$_{⊙}$$). Our results add significantly to the number of existing velocity-resolved lag measurements and reveal a diversity of BLR gas kinematics at moderately high AGN luminosities. AGN continuum luminosity appears not to be correlated with the type of kinematics that its BLR gas may exhibit. Follow-up direct modeling of this data set will elucidate the detailed kinematics and provide robust dynamical black hole masses for several objects in this sample.
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
German Research Foundation (DFG); National Aeronautics and Space Administration (NASA); National Research Foundation of Korea (NRF); National Science Foundation (NSF); Science and Technology Facilities Council (STFC); USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1839559
Report Number(s):
FERMILAB-PUB--21-721-PPD; arXiv:2111.14849; oai:inspirehep.net:1991685
Journal Information:
The Astrophysical Journal, Journal Name: The Astrophysical Journal Journal Issue: 1 Vol. 925; ISSN 0004-637X
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
Seyfert galaxies
active galactic nuclei
reverberation mapping
supermassive black holes