The structure of the broad-line region in active galactic nuclei. I. Reconstructed velocity-delay maps
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The structure of the broad-line region in active galactic nuclei. I. Reconstructed velocity-delay maps. / 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.; Van Saders, J.L.; Horne, K.; Bentz, M.C.; Denney, K.D.; Siverd, R.; Sergeev, S.G.; Borman, G.A.; Doroshenko, V.T.; Nazarov, S.V.; Okhmat, D.N.; Kaspi, S.; Rafter, S.; Bord, D.J.; Che, X.; King, A.L.; Valluri, M.; Chen, C.; Cohen, S.A.; Ginsburg, I.; Free, N.; Shields, J.C.; Efimov, Y.S.
In: The Astrophysical Journal Letters, Vol. 764, No. 1, 47, 10.02.2013.Research output: Contribution to journal › Journal article › Research › peer-review
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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 Hß 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 ¿4686 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 Hß 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 ¿4686 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
VL - 764
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 1
M1 - 47
ER -
ID: 45587538