Intensive disc-reverberation mapping of Fairall 9: first year of Swift and LCO monitoring

Research output: Contribution to journal › Journal article › Research › peer-review

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Intensive disc-reverberation mapping of Fairall 9 : first year of Swift and LCO monitoring. / Santisteban, J. V. Hernandez; Edelson, R.; Horne, K.; Gelbord, J. M.; Barth, A. J.; Cackett, E. M.; Goad, M. R.; Netzer, H.; Starkey, D.; Uttley, P.; Brandt, W. N.; Korista, K.; Lohfink, A. M.; Onken, C. A.; Page, K. L.; Siegel, M.; Vestergaard, M.; Bisogni, S.; Breeveld, A. A.; Cenko, S. B.; Dalla Bonta, E.; Evans, P. A.; Ferland, G.; Gonzalez-Buitrago, D. H.; Grupe, D.; Joner, M. D.; Kriss, G.; LaPorte, S. J.; Mathur, S.; Marshall, F.; Mehdipour, M.; Mudd, D.; Peterson, B. M.; Schmidt, T.; Vaughan, S.; Valenti, S.

In: Monthly Notices of the Royal Astronomical Society, Vol. 498, No. 4, 21.09.2020, p. 5399-5416.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Santisteban, JVH, Edelson, R, Horne, K, Gelbord, JM, Barth, AJ, Cackett, EM, Goad, MR, Netzer, H, Starkey, D, Uttley, P, Brandt, WN, Korista, K, Lohfink, AM, Onken, CA, Page, KL, Siegel, M, Vestergaard, M, Bisogni, S, Breeveld, AA, Cenko, SB, Dalla Bonta, E, Evans, PA, Ferland, G, Gonzalez-Buitrago, DH, Grupe, D, Joner, MD, Kriss, G, LaPorte, SJ, Mathur, S, Marshall, F, Mehdipour, M, Mudd, D, Peterson, BM, Schmidt, T, Vaughan, S & Valenti, S 2020, 'Intensive disc-reverberation mapping of Fairall 9: first year of Swift and LCO monitoring', Monthly Notices of the Royal Astronomical Society, vol. 498, no. 4, pp. 5399-5416. https://doi.org/10.1093/mnras/staa2365

APA

Santisteban, J. V. H., Edelson, R., Horne, K., Gelbord, J. M., Barth, A. J., Cackett, E. M., Goad, M. R., Netzer, H., Starkey, D., Uttley, P., Brandt, W. N., Korista, K., Lohfink, A. M., Onken, C. A., Page, K. L., Siegel, M., Vestergaard, M., Bisogni, S., Breeveld, A. A., ... Valenti, S. (2020). Intensive disc-reverberation mapping of Fairall 9: first year of Swift and LCO monitoring. Monthly Notices of the Royal Astronomical Society, 498(4), 5399-5416. https://doi.org/10.1093/mnras/staa2365

Vancouver

Santisteban JVH, Edelson R, Horne K, Gelbord JM, Barth AJ, Cackett EM et al. Intensive disc-reverberation mapping of Fairall 9: first year of Swift and LCO monitoring. Monthly Notices of the Royal Astronomical Society. 2020 Sep 21;498(4):5399-5416. https://doi.org/10.1093/mnras/staa2365

Author

Santisteban, J. V. Hernandez ; Edelson, R. ; Horne, K. ; Gelbord, J. M. ; Barth, A. J. ; Cackett, E. M. ; Goad, M. R. ; Netzer, H. ; Starkey, D. ; Uttley, P. ; Brandt, W. N. ; Korista, K. ; Lohfink, A. M. ; Onken, C. A. ; Page, K. L. ; Siegel, M. ; Vestergaard, M. ; Bisogni, S. ; Breeveld, A. A. ; Cenko, S. B. ; Dalla Bonta, E. ; Evans, P. A. ; Ferland, G. ; Gonzalez-Buitrago, D. H. ; Grupe, D. ; Joner, M. D. ; Kriss, G. ; LaPorte, S. J. ; Mathur, S. ; Marshall, F. ; Mehdipour, M. ; Mudd, D. ; Peterson, B. M. ; Schmidt, T. ; Vaughan, S. ; Valenti, S. / Intensive disc-reverberation mapping of Fairall 9 : first year of Swift and LCO monitoring. In: Monthly Notices of the Royal Astronomical Society. 2020 ; Vol. 498, No. 4. pp. 5399-5416.

Bibtex

@article{d761651244df474e88127c7a276c0c46,
title = "Intensive disc-reverberation mapping of Fairall 9: first year of Swift and LCO monitoring",
abstract = "We present results of time-series analysis of the first year of the Fairall 9 intensive disc-reverberation campaign. We used Swift and the Las Cumbres Observatory global telescope network to continuously monitor Fairall 9 from X-rays to near-infrared at a daily to subdaily cadence. The cross-correlation function between bands provides evidence for a lag spectrum consistent with the tau proportional to lambda(4/3) scaling expected for an optically thick, geometrically thin blackbody accretion disc. Decomposing the flux into constant and variable components, the variable component's spectral energy distribution is slightly steeper than the standard accretion disc prediction. We find evidence at the Balmer edge in both the lag and flux spectra for an additional bound-free continuum contribution that may arise from reprocessing in the broad-line region. The inferred driving light curve suggests two distinct components, a rapidly variable (100 d) component with an opposite lag to the reverberation signal.",
keywords = "accretion, accretion discs, galaxies: active, quasars: individual: Fairall 9, ACTIVE GALACTIC NUCLEI, BROAD-LINE REGION, X-RAY, CONTINUUM EMISSION, ACCRETION DISC, VARIABILITY, DISTRIBUTIONS, SOFTWARE, VIEW, LAGS",
author = "Santisteban, {J. V. Hernandez} and R. Edelson and K. Horne and Gelbord, {J. M.} and Barth, {A. J.} and Cackett, {E. M.} and Goad, {M. R.} and H. Netzer and D. Starkey and P. Uttley and Brandt, {W. N.} and K. Korista and Lohfink, {A. M.} and Onken, {C. A.} and Page, {K. L.} and M. Siegel and M. Vestergaard and S. Bisogni and Breeveld, {A. A.} and Cenko, {S. B.} and {Dalla Bonta}, E. and Evans, {P. A.} and G. Ferland and Gonzalez-Buitrago, {D. H.} and D. Grupe and Joner, {M. D.} and G. Kriss and LaPorte, {S. J.} and S. Mathur and F. Marshall and M. Mehdipour and D. Mudd and Peterson, {B. M.} and T. Schmidt and S. Vaughan and S. Valenti",
year = "2020",
month = sep,
day = "21",
doi = "10.1093/mnras/staa2365",
language = "English",
volume = "498",
pages = "5399--5416",
journal = "Royal Astronomical Society. Monthly Notices",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",

}

RIS

TY - JOUR

T1 - Intensive disc-reverberation mapping of Fairall 9

T2 - first year of Swift and LCO monitoring

AU - Santisteban, J. V. Hernandez

AU - Edelson, R.

AU - Horne, K.

AU - Gelbord, J. M.

AU - Barth, A. J.

AU - Cackett, E. M.

AU - Goad, M. R.

AU - Netzer, H.

AU - Starkey, D.

AU - Uttley, P.

AU - Brandt, W. N.

AU - Korista, K.

AU - Lohfink, A. M.

AU - Onken, C. A.

AU - Page, K. L.

AU - Siegel, M.

AU - Vestergaard, M.

AU - Bisogni, S.

AU - Breeveld, A. A.

AU - Cenko, S. B.

AU - Dalla Bonta, E.

AU - Evans, P. A.

AU - Ferland, G.

AU - Gonzalez-Buitrago, D. H.

AU - Grupe, D.

AU - Joner, M. D.

AU - Kriss, G.

AU - LaPorte, S. J.

AU - Mathur, S.

AU - Marshall, F.

AU - Mehdipour, M.

AU - Mudd, D.

AU - Peterson, B. M.

AU - Schmidt, T.

AU - Vaughan, S.

AU - Valenti, S.

PY - 2020/9/21

Y1 - 2020/9/21

N2 - We present results of time-series analysis of the first year of the Fairall 9 intensive disc-reverberation campaign. We used Swift and the Las Cumbres Observatory global telescope network to continuously monitor Fairall 9 from X-rays to near-infrared at a daily to subdaily cadence. The cross-correlation function between bands provides evidence for a lag spectrum consistent with the tau proportional to lambda(4/3) scaling expected for an optically thick, geometrically thin blackbody accretion disc. Decomposing the flux into constant and variable components, the variable component's spectral energy distribution is slightly steeper than the standard accretion disc prediction. We find evidence at the Balmer edge in both the lag and flux spectra for an additional bound-free continuum contribution that may arise from reprocessing in the broad-line region. The inferred driving light curve suggests two distinct components, a rapidly variable (100 d) component with an opposite lag to the reverberation signal.

AB - We present results of time-series analysis of the first year of the Fairall 9 intensive disc-reverberation campaign. We used Swift and the Las Cumbres Observatory global telescope network to continuously monitor Fairall 9 from X-rays to near-infrared at a daily to subdaily cadence. The cross-correlation function between bands provides evidence for a lag spectrum consistent with the tau proportional to lambda(4/3) scaling expected for an optically thick, geometrically thin blackbody accretion disc. Decomposing the flux into constant and variable components, the variable component's spectral energy distribution is slightly steeper than the standard accretion disc prediction. We find evidence at the Balmer edge in both the lag and flux spectra for an additional bound-free continuum contribution that may arise from reprocessing in the broad-line region. The inferred driving light curve suggests two distinct components, a rapidly variable (100 d) component with an opposite lag to the reverberation signal.

KW - accretion, accretion discs

KW - galaxies: active

KW - quasars: individual: Fairall 9

KW - ACTIVE GALACTIC NUCLEI

KW - BROAD-LINE REGION

KW - X-RAY

KW - CONTINUUM EMISSION

KW - ACCRETION DISC

KW - VARIABILITY

KW - DISTRIBUTIONS

KW - SOFTWARE

KW - VIEW

KW - LAGS

U2 - 10.1093/mnras/staa2365

DO - 10.1093/mnras/staa2365

M3 - Journal article

VL - 498

SP - 5399

EP - 5416

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 4

ER -

ID: 252293391