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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
The lick AGN monitoring project 2011: Reverberation mapping of Markarian 50
Astrophysical Journal Letters, Volume 743, No. 1, Article L4, Year 2011
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Description
The Lick AGN Monitoring Project 2011 observing campaign was carried out over the course of 11 weeks in spring 2011. Here we present the first results from this program, a measurement of the broad-line reverberation lag in the Seyfert 1 galaxy Mrk50. Combining our data with supplemental observations obtained prior to the start of the main observing campaign, our data set covers a total duration of 4.5 months. During this time, Mrk50 was highly variable, exhibiting a maximum variability amplitude of a factor of 4 in the U-band continuum and a factor of ∼2 in the Hβ line. Using standard cross-correlation techniques, we find that Hβ and Hγ lag the V-band continuum by τcen = 10.64+0.82 - 0.93 and 8.43+1.30 - 1.28days, respectively, while the lag of He II λ4686 is unresolved. The Hβ line exhibits a symmetric velocity-resolved reverberation signature with shorter lags in the high-velocity wings than in the line core, consistent with an origin in a broad-line region (BLR) dominated by orbital motion rather than infall or outflow. Assuming a virial normalization factor of f = 5.25, the virial estimate of the black hole mass is (3.2 ± 0.5) × 107 M ⊙. These observations demonstrate that Mrk50 is among the most promising nearby active galaxies for detailed investigations of BLR structure and dynamics. © 2011. The American Astronomical Society. All rights reserved.
Authors & Co-Authors
Barth, Aaron J.
United States, Irvine
University of California, Irvine
Pancoast, Anna
United States, Santa Barbara
University of California, Santa Barbara
Bennert, Vardha Nicola
United States, Santa Barbara
University of California, Santa Barbara
United States, San Luis Obispo
California Polytechnic State University, San Luis Obispo
Sand, David J.
United States, Santa Barbara
University of California, Santa Barbara
United States, Santa Barbara
Las Cumbres Observatory Global Telescope Network, Inc
Li, Weidong
United States, Berkeley
University of California, Berkeley
Canalizo, Gabriela
United States, Riverside
University of California, Riverside
Filippenko, Alexei V.
United States, Berkeley
University of California, Berkeley
Gates, Elinor L.
United States, Mount Hamilton
Lick Observatory
Greene, Jenny E.
United States, Princeton
Princeton University
Malkan, Matthew A.
United States, Los Angeles
University of California, Los Angeles
Stern, Daniel K.
United States, Pasadena
California Institute of Technology
Treu, Tommaso L.
United States, Santa Barbara
University of California, Santa Barbara
Woo, Jong-hak
South Korea, Seoul
Seoul National University
Assef, Roberto J.
United States, Pasadena
California Institute of Technology
Brewer, Brendon J.
United States, Santa Barbara
University of California, Santa Barbara
Cenko, Stephen Bradley
United States, Berkeley
University of California, Berkeley
Clubb, Kelsey I.
United States, Berkeley
University of California, Berkeley
Cooper, Michael C.
United States, Irvine
University of California, Irvine
Diamond-Stanic, Aleksandar M.
United States, La Jolla
University of California, San Diego
Hönig, Sebastian F.
United States, Santa Barbara
University of California, Santa Barbara
Joner, Michael D.
United States, Provo
Brigham Young University
Kandrashoff, Michael T.
United States, Berkeley
University of California, Berkeley
Laney, Clifton David
United States, Provo
Brigham Young University
Lazarova, Mariana S.
United States, Riverside
University of California, Riverside
Nierenberg, Anna M.
United States, Santa Barbara
University of California, Santa Barbara
Park, Dawoo
South Korea, Seoul
Seoul National University
Silverman, Jeffrey M.
United States, Berkeley
University of California, Berkeley
United States, Berkeley
Lawrence Berkeley National Laboratory
Son, Donghoon
South Korea, Seoul
Seoul National University
Sonnenfeld, Alessandro
United States, Santa Barbara
University of California, Santa Barbara
Tollerud, Erik J.
United States, Irvine
University of California, Irvine
Walsh, Jonelle L.
United States, Irvine
University of California, Irvine
United States, Austin
The University of Texas at Austin
Walters, Richard S.
United States, Pasadena
Carnegie Observatories
Fumagalli, Michele
United States, Santa Cruz
University of California, Santa Cruz
Gregg, Michael D.
United States, Davis
University of California, Davis
United States, Los Angeles
Institute of Geophysics and Planetary Physics Igpp at Ucla
Hsiao, Eric Y.
United States, Berkeley
Lawrence Berkeley National Laboratory
Trump, Jonathan R.
United States, Santa Cruz
University of California, Santa Cruz
Yesuf, Hassen M.
United States, Santa Cruz
University of California, Santa Cruz
Statistics
Citations: 86
Authors: 37
Affiliations: 20
Identifiers
Doi:
10.1088/2041-8205/743/1/L4
ISSN:
20418213