OzDES Reverberation Mapping Programme: The first Mg ii lags from 5 yr of monitoring

Zhefu Yu; Paul Martini; A. Penton; T. M. Davis; U. Malik; C. Lidman; B. E. Tucker; R. Sharp; C. S. Kochanek; B. M. Peterson; M. Aguena; S. Allam; F. Andrade-Oliveira; J. Annis; J. Asorey; E. Bertin; D. Brooks; D. L. Burke; J. Calcino; A. Carnero Rosell; D. Carollo; M. Carrasco Kind; M. Costanzi; L. N. Da Costa; M. E.S. Da Silva Pereira; H. T. Diehl; S. Everett; I. Ferrero; B. Flaugher; J. Frieman; J. García-Bellido; E. Gaztanaga; D. W. Gerdes; D. Gruen; R. A. Gruendl; J. Gschwend; G. Gutierrez; S. R. Hinton; D. L. Hollowood; D. J. James; A. G. Kim; R. Kron; K. Kuehn; N. Kuropatkin; G. F. Lewis; M. A.G. Maia; M. March; J. L. Marshall; F. Menanteau; R. Miquel; R. Morgan; A. Möller; A. Palmese; F. Paz-Chinchón; A. A. Plazas; E. Sanchez; V. Scarpine; S. Serrano; I. Sevilla-Noarbe; M. Smith; M. Soares-Santos; E. Suchyta; G. Tarle; D. Thomas; C. To; D. L. Tucker

doi:10.1093/mnras/stab2244

OzDES Reverberation Mapping Programme: The first Mg ii lags from 5 yr of monitoring

Zhefu Yu, Paul Martini, A. Penton, T. M. Davis, U. Malik, C. Lidman, B. E. Tucker, R. Sharp, C. S. Kochanek, B. M. Peterson, M. Aguena, S. Allam, F. Andrade-Oliveira, J. Annis, J. Asorey, E. Bertin, D. Brooks, D. L. Burke, J. Calcino, A. Carnero RosellD. Carollo, M. Carrasco Kind, M. Costanzi, L. N. Da Costa, M. E.S. Da Silva Pereira, H. T. Diehl, S. Everett, I. Ferrero, B. Flaugher, J. Frieman, J. García-Bellido, E. Gaztanaga, D. W. Gerdes, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, S. R. Hinton, D. L. Hollowood, D. J. James, A. G. Kim, R. Kron, K. Kuehn, N. Kuropatkin, G. F. Lewis, M. A.G. Maia, M. March, J. L. Marshall, F. Menanteau, R. Miquel, R. Morgan, A. Möller, A. Palmese, F. Paz-Chinchón, A. A. Plazas, E. Sanchez, V. Scarpine, S. Serrano, I. Sevilla-Noarbe, M. Smith, M. Soares-Santos, E. Suchyta, G. Tarle, D. Thomas, C. To, D. L. Tucker

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Abstract

Reverberation mapping is a robust method to measure the masses of supermassive black holes outside of the local Universe. Measurements of the radius-luminosity (R-L) relation using the Mg ii emission line are critical for determining these masses near the peak of quasar activity at z ≈ 1-2, and for calibrating secondary mass estimators based on Mg ii that can be applied to large samples with only single-epoch spectroscopy. We present the first nine Mg ii lags from our 5-yr Australian Dark Energy Survey reverberation mapping programme, which substantially improves the number and quality of Mg ii lag measurements. As the Mg ii feature is somewhat blended with iron emission, we model and subtract both the continuum and iron contamination from the multiepoch spectra before analysing the Mg ii line. We also develop a new method of quantifying correlated spectroscopic calibration errors based on our numerous, contemporaneous observations of F-stars. The lag measurements for seven of our nine sources are consistent with both the H β and Mg ii R-L relations reported by previous studies. Our simulations verify the lag reliability of our nine measurements, and we estimate that the median false positive rate of the lag measurements is 4 per cent.

Original language	English
Pages (from-to)	3771-3788
Number of pages	18
Journal	Monthly Notices of the Royal Astronomical Society
Volume	507
Issue number	3
DOIs	https://doi.org/10.1093/mnras/stab2244
State	Published - Nov 1 2021

Funding

The DES data management system is supported by the National Science Foundation under Grant Numbers AST-1138766 and AST-1536171. The DES participants from Spanish institutions are partially supported by MICINN under grants ESP2017-89838, PGC2018-094773, PGC2018-102021, SEV-2016-0588, SEV-2016- 0597, and MDM-2015-0509, some of which include ERDF funds from the European Union. IFAE is partially funded by the CERCA programme of the Generalitat de Catalunya. Research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. We acknowledge support from the Brazilian Instituto Nacional de Ciencia e Tecnologia (INCT) do e-Universo (CNPq grant 465376/2014-2).

Funders	Funder number
Brazilian Instituto Nacional de Ciencia e Tecnologia
INCT
National Science Foundation	AST-1138766, AST-1536171
Seventh Framework Programme	240672, 306478, 291329
Engineering Research Centers
European Commission
European Research Council
Generalitat de Catalunya
Conselho Nacional de Desenvolvimento Científico e Tecnológico	465376/2014-2
Ministerio de Ciencia e Innovación	SEV-2016-0588, MDM-2015-0509, SEV-2016- 0597, PGC2018-094773, PGC2018-102021, ESP2017-89838
Seventh Framework Programme
European Regional Development Fund

Keywords

galaxies: nuclei
quasars: general

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10.1093/mnras/stab2244

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Yu, Z., Martini, P., Penton, A., Davis, T. M., Malik, U., Lidman, C., Tucker, B. E., Sharp, R., Kochanek, C. S., Peterson, B. M., Aguena, M., Allam, S., Andrade-Oliveira, F., Annis, J., Asorey, J., Bertin, E., Brooks, D., Burke, D. L., Calcino, J., ... Tucker, D. L. (2021). OzDES Reverberation Mapping Programme: The first Mg ii lags from 5 yr of monitoring. Monthly Notices of the Royal Astronomical Society, 507(3), 3771-3788. https://doi.org/10.1093/mnras/stab2244

@article{8241e0f4d90c40c5bff7df7d739081a3,

title = "OzDES Reverberation Mapping Programme: The first Mg ii lags from 5 yr of monitoring",

abstract = "Reverberation mapping is a robust method to measure the masses of supermassive black holes outside of the local Universe. Measurements of the radius-luminosity (R-L) relation using the Mg ii emission line are critical for determining these masses near the peak of quasar activity at z ≈ 1-2, and for calibrating secondary mass estimators based on Mg ii that can be applied to large samples with only single-epoch spectroscopy. We present the first nine Mg ii lags from our 5-yr Australian Dark Energy Survey reverberation mapping programme, which substantially improves the number and quality of Mg ii lag measurements. As the Mg ii feature is somewhat blended with iron emission, we model and subtract both the continuum and iron contamination from the multiepoch spectra before analysing the Mg ii line. We also develop a new method of quantifying correlated spectroscopic calibration errors based on our numerous, contemporaneous observations of F-stars. The lag measurements for seven of our nine sources are consistent with both the H β and Mg ii R-L relations reported by previous studies. Our simulations verify the lag reliability of our nine measurements, and we estimate that the median false positive rate of the lag measurements is 4 per cent.",

keywords = "galaxies: nuclei, quasars: general",

author = "Zhefu Yu and Paul Martini and A. Penton and Davis, {T. M.} and U. Malik and C. Lidman and Tucker, {B. E.} and R. Sharp and Kochanek, {C. S.} and Peterson, {B. M.} and M. Aguena and S. Allam and F. Andrade-Oliveira and J. Annis and J. Asorey and E. Bertin and D. Brooks and Burke, {D. L.} and J. Calcino and {Carnero Rosell}, A. and D. Carollo and {Carrasco Kind}, M. and M. Costanzi and {Da Costa}, {L. N.} and {Da Silva Pereira}, {M. E.S.} and Diehl, {H. T.} and S. Everett and I. Ferrero and B. Flaugher and J. Frieman and J. Garc{\'i}a-Bellido and E. Gaztanaga and Gerdes, {D. W.} and D. Gruen and Gruendl, {R. A.} and J. Gschwend and G. Gutierrez and Hinton, {S. R.} and Hollowood, {D. L.} and James, {D. J.} and Kim, {A. G.} and R. Kron and K. Kuehn and N. Kuropatkin and Lewis, {G. F.} and Maia, {M. A.G.} and M. March and Marshall, {J. L.} and F. Menanteau and R. Miquel and R. Morgan and A. M{\"o}ller and A. Palmese and F. Paz-Chinch{\'o}n and Plazas, {A. A.} and E. Sanchez and V. Scarpine and S. Serrano and I. Sevilla-Noarbe and M. Smith and M. Soares-Santos and E. Suchyta and G. Tarle and D. Thomas and C. To and Tucker, {D. L.}",

note = "Publisher Copyright: {\textcopyright} 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.",

year = "2021",

month = nov,

day = "1",

doi = "10.1093/mnras/stab2244",

language = "English",

volume = "507",

pages = "3771--3788",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "3",

}

Yu, Z, Martini, P, Penton, A, Davis, TM, Malik, U, Lidman, C, Tucker, BE, Sharp, R, Kochanek, CS, Peterson, BM, Aguena, M, Allam, S, Andrade-Oliveira, F, Annis, J, Asorey, J, Bertin, E, Brooks, D, Burke, DL, Calcino, J, Carnero Rosell, A, Carollo, D, Carrasco Kind, M, Costanzi, M, Da Costa, LN, Da Silva Pereira, MES, Diehl, HT, Everett, S, Ferrero, I, Flaugher, B, Frieman, J, García-Bellido, J, Gaztanaga, E, Gerdes, DW, Gruen, D, Gruendl, RA, Gschwend, J, Gutierrez, G, Hinton, SR, Hollowood, DL, James, DJ, Kim, AG, Kron, R, Kuehn, K, Kuropatkin, N, Lewis, GF, Maia, MAG, March, M, Marshall, JL, Menanteau, F, Miquel, R, Morgan, R, Möller, A, Palmese, A, Paz-Chinchón, F, Plazas, AA, Sanchez, E, Scarpine, V, Serrano, S, Sevilla-Noarbe, I, Smith, M, Soares-Santos, M, Suchyta, E, Tarle, G, Thomas, D, To, C & Tucker, DL 2021, 'OzDES Reverberation Mapping Programme: The first Mg ii lags from 5 yr of monitoring', Monthly Notices of the Royal Astronomical Society, vol. 507, no. 3, pp. 3771-3788. https://doi.org/10.1093/mnras/stab2244

TY - JOUR

T1 - OzDES Reverberation Mapping Programme

T2 - The first Mg ii lags from 5 yr of monitoring

AU - Yu, Zhefu

AU - Martini, Paul

AU - Penton, A.

AU - Davis, T. M.

AU - Malik, U.

AU - Lidman, C.

AU - Tucker, B. E.

AU - Sharp, R.

AU - Kochanek, C. S.

AU - Peterson, B. M.

AU - Aguena, M.

AU - Allam, S.

AU - Andrade-Oliveira, F.

AU - Annis, J.

AU - Asorey, J.

AU - Bertin, E.

AU - Brooks, D.

AU - Burke, D. L.

AU - Calcino, J.

AU - Carnero Rosell, A.

AU - Carollo, D.

AU - Carrasco Kind, M.

AU - Costanzi, M.

AU - Da Costa, L. N.

AU - Da Silva Pereira, M. E.S.

AU - Diehl, H. T.

AU - Everett, S.

AU - Ferrero, I.

AU - Flaugher, B.

AU - Frieman, J.

AU - García-Bellido, J.

AU - Gaztanaga, E.

AU - Gerdes, D. W.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Gschwend, J.

AU - Gutierrez, G.

AU - Hinton, S. R.

AU - Hollowood, D. L.

AU - James, D. J.

AU - Kim, A. G.

AU - Kron, R.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Lewis, G. F.

AU - Maia, M. A.G.

AU - March, M.

AU - Marshall, J. L.

AU - Menanteau, F.

AU - Miquel, R.

AU - Morgan, R.

AU - Möller, A.

AU - Palmese, A.

AU - Paz-Chinchón, F.

AU - Plazas, A. A.

AU - Sanchez, E.

AU - Scarpine, V.

AU - Serrano, S.

AU - Sevilla-Noarbe, I.

AU - Smith, M.

AU - Soares-Santos, M.

AU - Suchyta, E.

AU - Tarle, G.

AU - Thomas, D.

AU - To, C.

AU - Tucker, D. L.

PY - 2021/11/1

Y1 - 2021/11/1

N2 - Reverberation mapping is a robust method to measure the masses of supermassive black holes outside of the local Universe. Measurements of the radius-luminosity (R-L) relation using the Mg ii emission line are critical for determining these masses near the peak of quasar activity at z ≈ 1-2, and for calibrating secondary mass estimators based on Mg ii that can be applied to large samples with only single-epoch spectroscopy. We present the first nine Mg ii lags from our 5-yr Australian Dark Energy Survey reverberation mapping programme, which substantially improves the number and quality of Mg ii lag measurements. As the Mg ii feature is somewhat blended with iron emission, we model and subtract both the continuum and iron contamination from the multiepoch spectra before analysing the Mg ii line. We also develop a new method of quantifying correlated spectroscopic calibration errors based on our numerous, contemporaneous observations of F-stars. The lag measurements for seven of our nine sources are consistent with both the H β and Mg ii R-L relations reported by previous studies. Our simulations verify the lag reliability of our nine measurements, and we estimate that the median false positive rate of the lag measurements is 4 per cent.

AB - Reverberation mapping is a robust method to measure the masses of supermassive black holes outside of the local Universe. Measurements of the radius-luminosity (R-L) relation using the Mg ii emission line are critical for determining these masses near the peak of quasar activity at z ≈ 1-2, and for calibrating secondary mass estimators based on Mg ii that can be applied to large samples with only single-epoch spectroscopy. We present the first nine Mg ii lags from our 5-yr Australian Dark Energy Survey reverberation mapping programme, which substantially improves the number and quality of Mg ii lag measurements. As the Mg ii feature is somewhat blended with iron emission, we model and subtract both the continuum and iron contamination from the multiepoch spectra before analysing the Mg ii line. We also develop a new method of quantifying correlated spectroscopic calibration errors based on our numerous, contemporaneous observations of F-stars. The lag measurements for seven of our nine sources are consistent with both the H β and Mg ii R-L relations reported by previous studies. Our simulations verify the lag reliability of our nine measurements, and we estimate that the median false positive rate of the lag measurements is 4 per cent.

KW - galaxies: nuclei

KW - quasars: general

UR - http://www.scopus.com/inward/record.url?scp=85117082004&partnerID=8YFLogxK

U2 - 10.1093/mnras/stab2244

DO - 10.1093/mnras/stab2244

M3 - Article

AN - SCOPUS:85117082004

SN - 0035-8711

VL - 507

SP - 3771

EP - 3788

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

OzDES Reverberation Mapping Programme: The first Mg ii lags from 5 yr of monitoring

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