The structure of the broad-line region in active galactic nuclei. I. Reconstructed velocity-delay maps

C.J. Grier; B.M. Peterson; R.W. Pogge; G. De Rosa; P. Martini; C.S. Kochanek; Y. Zu; B. Shappee; T.G. Beatty; C.A. Salvo; J.C. Bird; M. Dietrich; C.B. Henderson; K. Mogren; M. Molina; A.M. Mosquera; O. Pejcha; J. Skowron; D.M. Szczygiel; J.L. Van Saders; K. Horne; M.C. Bentz; K.D. Denney; R. Siverd; S.G. Sergeev; G.A. Borman; V.T. Doroshenko; S.V. Nazarov; D.N. Okhmat; S. Kaspi; S. Rafter; D.J. Bord; X. Che; A.L. King; M. Valluri; C. Chen; S.A. Cohen; I. Ginsburg; N. Free; J.C. Shields; Y.S. Efimov

doi:10.1088/0004-637X/764/1/47

The structure of the broad-line region in active galactic nuclei. I. Reconstructed velocity-delay maps

C.J. Grier, B.M. Peterson, R.W. Pogge, G. De Rosa, P. Martini, C.S. Kochanek, Y. Zu, B. Shappee, T.G. Beatty, C.A. Salvo, J.C. Bird, M. Dietrich, C.B. Henderson, K. Mogren, M. Molina, A.M. Mosquera, O. Pejcha, J. Skowron, D.M. Szczygiel, J.L. Van SadersK. Horne, M.C. Bentz, K.D. Denney, R. Siverd, S.G. Sergeev, G.A. Borman, V.T. Doroshenko, S.V. Nazarov, D.N. Okhmat, S. Kaspi, S. Rafter, D.J. Bord, X. Che, A.L. King, M. Valluri, C. Chen, S.A. Cohen, I. Ginsburg, N. Free, J.C. Shields, Y.S. Efimov

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Abstract

We present velocity-resolved reverberation results for five active galactic nuclei. We recovered velocity-delay maps using the maximum entropy method for four objects: Mrk 335, Mrk 1501, 3C 120, and PG 2130+099. For the fifth, Mrk 6, we were only able to measure mean time delays in different velocity bins of the Hβ emission line. The four velocity-delay maps show unique dynamical signatures for each object. For 3C 120, the Balmer lines show kinematic signatures consistent with both an inclined disk and infalling gas, but the He II λ4686 emission line is suggestive only of inflow. The Balmer lines in Mrk 335, Mrk 1501, and PG 2130+099 show signs of infalling gas, but the He II emission in Mrk 335 is consistent with an inclined disk. We also see tentative evidence of combined virial motion and infalling gas from the velocity-binned analysis of Mrk 6. The maps for 3C 120 and Mrk 335 are two of the most clearly defined velocity-delay maps to date. These maps constitute a large increase in the number of objects for which we have resolved velocity-delay maps and provide evidence supporting the reliability of reverberation-based black hole mass measurements.

Originalsprog	Engelsk
Artikelnummer	47
Tidsskrift	The Astrophysical Journal Letters
Vol/bind	764
Udgave nummer	1
ISSN	0004-637X
DOI	https://doi.org/10.1088/0004-637X/764/1/47
Status	Udgivet - 10 feb. 2013

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Grier, C. J., Peterson, B. M., Pogge, R. W., De Rosa, G., Martini, P., Kochanek, C. S., Zu, Y., Shappee, B., Beatty, T. G., Salvo, C. A., Bird, J. C., Dietrich, M., Henderson, C. B., Mogren, K., Molina, M., Mosquera, A. M., Pejcha, O., Skowron, J., Szczygiel, D. M., ... Efimov, Y. S. (2013). The structure of the broad-line region in active galactic nuclei. I. Reconstructed velocity-delay maps. The Astrophysical Journal Letters, 764(1), [47]. https://doi.org/10.1088/0004-637X/764/1/47

Grier, CJ, Peterson, BM, Pogge, RW, De Rosa, G, Martini, P, Kochanek, CS, Zu, Y, Shappee, B, Beatty, TG, Salvo, CA, Bird, JC, Dietrich, M, Henderson, CB, Mogren, K, Molina, M, Mosquera, AM, Pejcha, O, Skowron, J, Szczygiel, DM, Van Saders, JL, Horne, K, Bentz, MC, Denney, KD, Siverd, R, Sergeev, SG, Borman, GA, Doroshenko, VT, Nazarov, SV, Okhmat, DN, Kaspi, S, Rafter, S, Bord, DJ, Che, X, King, AL, Valluri, M, Chen, C, Cohen, SA, Ginsburg, I, Free, N, Shields, JC & Efimov, YS 2013, 'The structure of the broad-line region in active galactic nuclei. I. Reconstructed velocity-delay maps', The Astrophysical Journal Letters, bind 764, nr. 1, 47. https://doi.org/10.1088/0004-637X/764/1/47

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title = "The structure of the broad-line region in active galactic nuclei. I. Reconstructed velocity-delay maps",

abstract = "We present velocity-resolved reverberation results for five active galactic nuclei. We recovered velocity-delay maps using the maximum entropy method for four objects: Mrk 335, Mrk 1501, 3C 120, and PG 2130+099. For the fifth, Mrk 6, we were only able to measure mean time delays in different velocity bins of the Hβ emission line. The four velocity-delay maps show unique dynamical signatures for each object. For 3C 120, the Balmer lines show kinematic signatures consistent with both an inclined disk and infalling gas, but the He II λ4686 emission line is suggestive only of inflow. The Balmer lines in Mrk 335, Mrk 1501, and PG 2130+099 show signs of infalling gas, but the He II emission in Mrk 335 is consistent with an inclined disk. We also see tentative evidence of combined virial motion and infalling gas from the velocity-binned analysis of Mrk 6. The maps for 3C 120 and Mrk 335 are two of the most clearly defined velocity-delay maps to date. These maps constitute a large increase in the number of objects for which we have resolved velocity-delay maps and provide evidence supporting the reliability of reverberation-based black hole mass measurements.",

author = "C.J. Grier and B.M. Peterson and R.W. Pogge and {De Rosa}, G. and P. Martini and C.S. Kochanek and Y. Zu and B. Shappee and T.G. Beatty and C.A. Salvo and J.C. Bird and M. Dietrich and C.B. Henderson and K. Mogren and M. Molina and A.M. Mosquera and O. Pejcha and J. Skowron and D.M. Szczygiel and {Van Saders}, J.L. and K. Horne and M.C. Bentz and K.D. Denney and R. Siverd and S.G. Sergeev and G.A. Borman and V.T. Doroshenko and S.V. Nazarov and D.N. Okhmat and S. Kaspi and S. Rafter and D.J. Bord and X. Che and A.L. King and M. Valluri and C. Chen and S.A. Cohen and I. Ginsburg and N. Free and J.C. Shields and Y.S. Efimov",

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TY - JOUR

T1 - The structure of the broad-line region in active galactic nuclei. I. Reconstructed velocity-delay maps

AU - Grier, C.J.

AU - Peterson, B.M.

AU - Pogge, R.W.

AU - De Rosa, G.

AU - Martini, P.

AU - Kochanek, C.S.

AU - Zu, Y.

AU - Shappee, B.

AU - Beatty, T.G.

AU - Salvo, C.A.

AU - Bird, J.C.

AU - Dietrich, M.

AU - Henderson, C.B.

AU - Mogren, K.

AU - Molina, M.

AU - Mosquera, A.M.

AU - Pejcha, O.

AU - Skowron, J.

AU - Szczygiel, D.M.

AU - Van Saders, J.L.

AU - Horne, K.

AU - Bentz, M.C.

AU - Denney, K.D.

AU - Siverd, R.

AU - Sergeev, S.G.

AU - Borman, G.A.

AU - Doroshenko, V.T.

AU - Nazarov, S.V.

AU - Okhmat, D.N.

AU - Kaspi, S.

AU - Rafter, S.

AU - Bord, D.J.

AU - Che, X.

AU - King, A.L.

AU - Valluri, M.

AU - Chen, C.

AU - Cohen, S.A.

AU - Ginsburg, I.

AU - Free, N.

AU - Shields, J.C.

AU - Efimov, Y.S.

PY - 2013/2/10

Y1 - 2013/2/10

N2 - We present velocity-resolved reverberation results for five active galactic nuclei. We recovered velocity-delay maps using the maximum entropy method for four objects: Mrk 335, Mrk 1501, 3C 120, and PG 2130+099. For the fifth, Mrk 6, we were only able to measure mean time delays in different velocity bins of the Hβ emission line. The four velocity-delay maps show unique dynamical signatures for each object. For 3C 120, the Balmer lines show kinematic signatures consistent with both an inclined disk and infalling gas, but the He II λ4686 emission line is suggestive only of inflow. The Balmer lines in Mrk 335, Mrk 1501, and PG 2130+099 show signs of infalling gas, but the He II emission in Mrk 335 is consistent with an inclined disk. We also see tentative evidence of combined virial motion and infalling gas from the velocity-binned analysis of Mrk 6. The maps for 3C 120 and Mrk 335 are two of the most clearly defined velocity-delay maps to date. These maps constitute a large increase in the number of objects for which we have resolved velocity-delay maps and provide evidence supporting the reliability of reverberation-based black hole mass measurements.

AB - We present velocity-resolved reverberation results for five active galactic nuclei. We recovered velocity-delay maps using the maximum entropy method for four objects: Mrk 335, Mrk 1501, 3C 120, and PG 2130+099. For the fifth, Mrk 6, we were only able to measure mean time delays in different velocity bins of the Hβ emission line. The four velocity-delay maps show unique dynamical signatures for each object. For 3C 120, the Balmer lines show kinematic signatures consistent with both an inclined disk and infalling gas, but the He II λ4686 emission line is suggestive only of inflow. The Balmer lines in Mrk 335, Mrk 1501, and PG 2130+099 show signs of infalling gas, but the He II emission in Mrk 335 is consistent with an inclined disk. We also see tentative evidence of combined virial motion and infalling gas from the velocity-binned analysis of Mrk 6. The maps for 3C 120 and Mrk 335 are two of the most clearly defined velocity-delay maps to date. These maps constitute a large increase in the number of objects for which we have resolved velocity-delay maps and provide evidence supporting the reliability of reverberation-based black hole mass measurements.

UR - http://www.scopus.com/inward/record.url?scp=84873949748&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/764/1/47

DO - 10.1088/0004-637X/764/1/47

M3 - Journal article

AN - SCOPUS:84873949748

SN - 0004-637X

VL - 764

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 47

ER -

The structure of the broad-line region in active galactic nuclei. I. Reconstructed velocity-delay maps

Abstract

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