TY - JOUR
T1 - Reverberation Mapping Results from MDM Observatory
T2 - Co-Evolution of Central Black Holes and Galaxies
AU - Denney, Kelly D.
AU - Peterson, B. M.
AU - Pogge, R. W.
AU - Bentz, M. C.
AU - Gaskell, C. M.
AU - Minezaki, T.
AU - Onken, C. A.
AU - Sergeev, S. G.
AU - Vestergaard, Marianne
PY - 2010/5/1
Y1 - 2010/5/1
N2 - Reverberation mapping takes advantage of the presence of a time delay or
lag, t, between continuum and emission line flux variations observed
through spectroscopic monitoring campaigns to infer the radius of the
broad-line region (BLR) and, subsequently, the central black hole mass
in type 1 AGNs. We present results from a multi-month reverberation
mapping campaign undertaken primarily at MDM Observatory with supporting
observations from around the world. We measure BLR radii and black hole
masses for six objects. The primary goal of this campaign was to obtain
either new or improved Hß reverberation lag measurements for
several relatively low-luminosity AGNs. Using cross correlation
techniques to measure the time delay between the mean optical continuum
flux density around 5100 Å and the integrated Hß flux, we
determine the Hß lags and black hole mass measurements listed in
columns 2 and 3 of Table 1, respectively. Column 4 tells if this
measurement is new, an improvement meant to replace a previous, less
reliable measurement, or simply an additional measurement not used to
replace a previous value. The complete results from this study are
currently being prepared for publication. A subsequent velocity-resolved
analysis of the Hß response shows that three of the six primary
targets demonstrate kinematic signatures (column 5) of infall, outflow,
and non-radial virialized motions (see Denney et al. 2009).
AB - Reverberation mapping takes advantage of the presence of a time delay or
lag, t, between continuum and emission line flux variations observed
through spectroscopic monitoring campaigns to infer the radius of the
broad-line region (BLR) and, subsequently, the central black hole mass
in type 1 AGNs. We present results from a multi-month reverberation
mapping campaign undertaken primarily at MDM Observatory with supporting
observations from around the world. We measure BLR radii and black hole
masses for six objects. The primary goal of this campaign was to obtain
either new or improved Hß reverberation lag measurements for
several relatively low-luminosity AGNs. Using cross correlation
techniques to measure the time delay between the mean optical continuum
flux density around 5100 Å and the integrated Hß flux, we
determine the Hß lags and black hole mass measurements listed in
columns 2 and 3 of Table 1, respectively. Column 4 tells if this
measurement is new, an improvement meant to replace a previous, less
reliable measurement, or simply an additional measurement not used to
replace a previous value. The complete results from this study are
currently being prepared for publication. A subsequent velocity-resolved
analysis of the Hß response shows that three of the six primary
targets demonstrate kinematic signatures (column 5) of infall, outflow,
and non-radial virialized motions (see Denney et al. 2009).
M3 - Journal article
SN - 1743-9213
VL - 267
SP - 201
EP - 201
JO - Proceedings of the International Astronomical Union
JF - Proceedings of the International Astronomical Union
ER -