J/ApJ/806/22 SEAMBHs IV. Hβ time lags (Du+, 2015)
Supermassive black holes with high accretion rates in active galactic nuclei.
IV. Hβ time lags and implications for Super-Eddington accretion.
Du P., Hu C., Lu K.-X., Huang Y.-K., Cheng C., Qiu J., Li Y.-R.,
Zhang Y.-W., Fan X.-L., Bai J.-M., Bian W.-H., Yuan Y.-F., Kaspi S.,
Ho L.C., Netzer H., Wang J.-M., (the SEAMBH Collaboration)
<Astrophys. J., 806, 22 (2015)>
=2015ApJ...806...22D 2015ApJ...806...22D (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Accretion ; Spectroscopy
Keywords: accretion, accretion disks; black hole physics; galaxies: active;
quasars: supermassive black holes
Abstract:
We have completed two years of photometric and spectroscopic
monitoring of a large number of active galactic nuclei (AGNs) with
very high accretion rates. In this paper, we report on the result of
the second phase of the campaign, during 2013-2014, and the
measurements of five new Hβ time lags out of eight monitored
AGNs. All five objects were identified as super-Eddington accreting
massive black holes (SEAMBHs). The highest measured accretion rates
for the objects in this campaign are dM/dt≳200, where
dM/dt=dM/dt{dot}/LEddC-2, dM/dt{dot} is the mass accretion
rates, LEdd is the Eddington luminosity and c is the speed of light.
Description:
The second year observations described here are essentially identical
to those of the first year, and readers are referred to Papers I (Du+,
2014ApJ...782...45D 2014ApJ...782...45D) and II (Wang+, 2014ApJ...793..108W 2014ApJ...793..108W) for detailed
information about the telescope and spectrograph. In short, the
telescope is a 2.4m alt-azimuth mounted Ritchey-Chretien located in
Lijiang, Yunnan Province, and operated by the Yunnan Observatories.
The observations now include photometry from the Wise Observatory, 1m
telescope in Israel, where we used a Princeton Instruments CCD camera,
an SDSS r'-band filter and a typical exposure time of 900s.
Detailed information of observations, such as, comparison stars etc.
is provided in Table 1. We also list the critical S/N used as a low
threshold to reject poor weather condition observations.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 103 18 The SEAMBH project: target and observations
table2.dat 123 94 Light curves of J075101 and J080101
table3.dat 123 93 Light curves of J080131 and J081441
table4.dat 123 81 Light curves of J081456 and J093922
table5.dat 123 85 Light curves of J094422 and J100055
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See also:
V/139 : The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)
VII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)
VII/258 : Quasars and Active Galactic Nuclei (13th Ed.) (Veron+ 2010)
J/ApJS/219/1 : SDSS-DR7 type 1 AGN properties (Oh+, 2015)
J/ApJS/217/26 : Lick AGN monitoring 2011: light curves (Barth+, 2015)
J/ApJS/216/4 : SDSS-RM project: technical overview (Shen+, 2015)
J/ApJ/764/45 : Luminosity function of broad-line quasars. II. (Kelly+, 2013)
J/ApJ/761/143 : Black hole masses of z∼1.4 AGNs from SXDS (Nobuta+, 2012)
J/ApJ/755/60 : Reverberation mapping for 5 Seyfert 1 galaxies (Grier+, 2012)
J/MNRAS/426/2703 : Type 1 AGN at low z. II. (Stern+, 2012)
J/ApJS/194/45 : QSO properties from SDSS-DR7 (Shen+, 2011)
J/ApJ/736/86 : FeII emission in SDSS type 1 AGNs (Dong+, 2011)
J/ApJ/699/800 : Mass functions of active black holes (Vestergaard+, 2009)
J/ApJ/698/895 : Variations in QSOs optical flux (Kelly+, 2009)
J/ApJ/687/78 : FeII emission in quasars (Hu+, 2008)
J/ApJ/683/L115 : Intermediate-line region in quasars (Hu+, 2008)
J/ApJ/680/169 : SDSS DR5 virial black hole masses (Shen+, 2008)
J/ApJ/667/131 : Mass function of active black holes (Greene+, 2007)
J/MNRAS/382/412 : Catalog of SDSS-DR5/2MASS spectroscopic quasars (Ofek, 2007)
J/ApJ/613/682 : AGN central masses & broad-line region sizes (Peterson+, 2004)
J/A+A/369/57 : Monitoring Mkn 279 in BVRI,Hβ fluxes (Santos-Lleo+, 2001)
J/ApJS/115/185 : 3C 390.3 BVRI and H photometry (Dietrich+, 1998)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1 I1 --- Set [1/2] 1:First phase: SEAMBH2012 sample or
2:Second phase: SEAMBH2013 sample (1)
3- 26 A24 --- Name Object name
28- 29 I2 h RAh Hour of right ascension (J2000)
31- 32 I2 min RAm Minute of right ascension (J2000)
34- 37 F4.1 s RAs Second of right ascension (J2000)
39 A1 --- DE- Sign of declination (J2000)
40- 41 I2 deg DEd Degree of declination (J2000)
43- 44 I2 arcmin DEm Arcminute of declination (J2000)
46- 47 I2 arcsec DEs Arcsecond of declination (J2000)
49- 54 F6.4 --- z [0.01/0.3] Redshift
56- 63 A8 "YYYY/MMM" Date1 Starting monitoring period date
65- 72 A8 "YYYY/MMM" Date2 Ending monitoring period date
74- 76 I3 --- Ns [17/123] Number of spectroscopic epochs
78- 80 I3 --- SNLj [12/100] Photometry at Lijiang Station of
Yunnan Observatory signal-to-noise ratio (2)
82- 83 I2 --- SNWO [15/50]? Photometry at Wise Observatory
signal-to-noise ratio (2)
85- 86 I2 --- SNsp [3/50] Spectrum S/N
88- 92 F5.1 arcsec Sep [79/234.4] Angular distance between the
object and the comparison star (R*)
94- 99 F6.1 deg PA [-173/174.5] Position angle from the AGN to
the comparison star
101-103 A3 --- Note Notes on the Hβ time lags (3)
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Note (1): We denote the samples monitored during the 2012-2013 and 2013-2014
observing seasons as SEAMBH2012 and SEAMBH2013, respectively.
The SEAMBH2012 group is described in Papers I, II and III (Du+,
2014ApJ...782...45D 2014ApJ...782...45D; Wang+ 2014ApJ...793..108W 2014ApJ...793..108W and
Hu+, 2015ApJ...804..138H 2015ApJ...804..138H).
No observational points were removed from the SEAMBH2012 sample due
to S/N.
Note (2): mr'Lj and mr'WO are referred to photometry at Lijiang Station of
Yunnan Observatory and Wise Observatory. We calculated S/N of the
SEAMBH2012 and SEAMBH2013 samples from light curves. We removed those
points of SEAMBH2013 sample in poor observing conditions in light of
the lowest S/N listed here. Only a few points with extremely large
error bars were removed in SEAMBH2012 sample (see details in
Papers I (2014ApJ...782...45D 2014ApJ...782...45D) and II (2014ApJ...793..108W 2014ApJ...793..108W)).
Note (3): Note as follows:
Yes = significant lag,
No = lags that could not be measured and
U = "uncertain": refers to the case of J080131 described in the text.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 F7.3 d JD-C-075101 ? Julian Date of J075101 continuum
observation; JD-2456600
9- 13 F5.3 10-18W/m2/nm C-075101 ? Continuum flux at (1+z)5100
Angstroms (G1)
15- 19 F5.3 10-18W/m2/nm e_C-075101 ? Uncertainty in C-075101
21 A1 --- f_C-075101 [LSW] Source flag for C-075101 (G2)
23- 29 F7.3 d JD-CC-075101 ? Julian Date of J075101 combined
continuum observation; JD-2456600
31- 35 F5.3 10-18W/m2/nm CC-075101 ? Combined continuum flux at 5100
Angstroms (G1)
37- 41 F5.3 10-18W/m2/nm e_CC-075101 ? Uncertainty in CC-075101
43- 49 F7.3 d JD-Hb-075101 ? Julian Date of J075101 Hβ
observation; JD-2456600
51- 55 F5.3 10-17W/m2 Hb-075101 ? Integrated Hβ flux (G3)
57- 61 F5.3 10-17W/m2 e_Hb-075101 ? Uncertainty in Hb-075101
63- 69 F7.3 d JD-C-080101 Julian Date of J080101 continuum
observation; JD-2456600
71- 75 F5.3 10-18W/m2/nm C-080101 Continuum flux at (1+z)5100
Angstroms (G1)
77- 81 F5.3 10-18W/m2/nm e_C-080101 Uncertainty in C-080101
83 A1 --- f_C-080101 [LSW] Source flag for C-080101 (G2)
85- 91 F7.3 d JD-CC-080101 ? Julian Date of J080101 combined
continuum observation; JD-2456600
93- 97 F5.3 10-18W/m2/nm CC-080101 ? Combined continuum flux
at (1+z)5100 Angstroms (G1)
99-103 F5.3 10-18W/m2/nm e_CC-080101 ? Uncertainty in CC-080101
105-111 F7.3 d JD-Hb-080101 ? Julian Date of J080101 Hβ
observation; JD-2456600
113-117 F5.3 10-17W/m2 Hb-080101 ? Integrated Hβ flux (G3)
119-123 F5.3 10-17W/m2 e_Hb-080101 ? Uncertainty in Hb-080101
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 F7.3 d JD-C-080131 ? Julian Date of J080131 continuum
observation; JD-2456600
9- 13 F5.3 10-18W/m2/nm C-080131 ? Continuum flux at (1+z)5100
Angstroms (G1)
15- 19 F5.3 10-18W/m2/nm e_C-080131 ? Uncertainty in C-080131
21 A1 --- f_C-080131 [LSW] Source flag for C-080131 (G2)
23- 29 F7.3 d JD-CC-080131 ? Julian Date of J080131 combined
continuum observation; JD-2456600
31- 35 F5.3 10-18W/m2/nm CC-080131 ? Combined continuum flux at 5100
Angstroms (G1)
37- 41 F5.3 10-18W/m2/nm e_CC-080131 ? Uncertainty in CC-080131
43- 49 F7.3 d JD-Hb-080131 ? Julian Date of J080131 Hβ
observation; JD-2456600
51- 55 F5.3 10-17W/m2 Hb-080131 ? Integrated Hβ flux (G3)
57- 61 F5.3 10-17W/m2 e_Hb-080131 ? Uncertainty in Hb-080131
63- 69 F7.3 d JD-C-081441 Julian Date of J081441 continuum
observation; JD-2456600
71- 75 F5.3 10-18W/m2/nm C-081441 Continuum flux at (1+z)5100
Angstroms (G1)
77- 81 F5.3 10-18W/m2/nm e_C-081441 Uncertainty in C-081441
83 A1 --- f_C-081441 [LSW] Source flag for C-081441 (G2)
85- 91 F7.3 d JD-CC-081441 ? Julian Date of J081441 combined
continuum observation; JD-2456600
93- 97 F5.3 10-18W/m2/nm CC-081441 ? Combined continuum flux
at (1+z)5100 Angstroms (G1)
99-103 F5.3 10-18W/m2/nm e_CC-081441 ? Uncertainty in CC-081441
105-111 F7.3 d JD-Hb-081441 ? Julian Date of J081441 Hβ
observation; JD-2456600
113-117 F5.3 10-17W/m2 Hb-081441 ? Integrated Hβ flux (G3)
119-123 F5.3 10-17W/m2 e_Hb-081441 ? Uncertainty in Hb-081441
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 F7.3 d JD-C-081456 ? Julian Date of J081456 continuum
observation; JD-2456600
9- 13 F5.3 10-18W/m2/nm C-081456 ? Continuum flux at (1+z)5100
Angstroms (G1)
15- 19 F5.3 10-18W/m2/nm e_C-081456 ? Uncertainty in C-081456
21 A1 --- f_C-081456 [LSW] Source flag for C-081456 (G2)
23- 29 F7.3 d JD-CC-081456 ? Julian Date of J081456 combined
continuum observation; JD-2456600
31- 35 F5.3 10-18W/m2/nm CC-081456 ? Combined continuum flux at 5100
Angstroms (G1)
37- 41 F5.3 10-18W/m2/nm e_CC-081456 ? Uncertainty in CC-081456
43- 49 F7.3 d JD-Hb-081456 ? Julian Date of J081456 Hβ
observation; JD-2456600
51- 55 F5.3 10-17W/m2 Hb-081456 ? Integrated Hβ flux (G3)
57- 61 F5.3 10-17W/m2 e_Hb-081456 ? Uncertainty in Hb-081456
63- 69 F7.3 d JD-C-093922 Julian Date of J093922 continuum
observation; JD-2456600
71- 75 F5.3 10-18W/m2/nm C-093922 Continuum flux at (1+z)5100
Angstroms (G1)
77- 81 F5.3 10-18W/m2/nm e_C-093922 Uncertainty in C-093922
83 A1 --- f_C-093922 [LSW] Source flag for C-093922 (G2)
85- 91 F7.3 d JD-CC-093922 ? Julian Date of J093922 combined
continuum observation; JD-2456600
93- 97 F5.3 10-18W/m2/nm CC-093922 ? Combined continuum flux
at (1+z)5100 Angstroms (G1)
99-103 F5.3 10-18W/m2/nm e_CC-093922 ? Uncertainty in CC-093922
105-111 F7.3 d JD-Hb-093922 ? Julian Date of J093922 Hβ
observation; JD-2456600
113-117 F5.3 10-17W/m2 Hb-093922 ? Integrated Hβ flux (G3)
119-123 F5.3 10-17W/m2 e_Hb-093922 ? Uncertainty in Hb-093922
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 7 F7.3 d JD-C-094422 ? Julian Date of J094422 continuum
observation; JD-2456600
9- 13 F5.3 10-18W/m2/nm C-094422 ? Continuum flux at (1+z)5100
Angstroms (G1)
15- 19 F5.3 10-18W/m2/nm e_C-094422 ? Uncertainty in C-094422
21 A1 --- f_C-094422 [LSW] Source flag for C-094422 (G2)
23- 29 F7.3 d JD-CC-094422 ? Julian Date of J094422 combined
continuum observation; JD-2456600
31- 35 F5.3 10-18W/m2/nm CC-094422 ? Combined continuum flux at 5100
Angstroms (G1)
37- 41 F5.3 10-18W/m2/nm e_CC-094422 ? Uncertainty in CC-094422
43- 49 F7.3 d JD-Hb-094422 ? Julian Date of J094422 Hβ
observation; JD-2456600
51- 55 F5.3 10-17W/m2 Hb-094422 ? Integrated Hβ flux (G3)
57- 61 F5.3 10-17W/m2 e_Hb-094422 ? Uncertainty in Hb-094422
63- 69 F7.3 d JD-C-100055 Julian Date of J100055 continuum
observation; JD-2456600
71- 75 F5.3 10-18W/m2/nm C-100055 Continuum flux at (1+z)5100
Angstroms (G1)
77- 81 F5.3 10-18W/m2/nm e_C-100055 Uncertainty in C-100055
83 A1 --- f_C-100055 [LSW] Source flag for C-100055 (G2)
85- 91 F7.3 d JD-CC-100055 ? Julian Date of J100055 combined
continuum observation; JD-2456600
93- 97 F5.3 10-18W/m2/nm CC-100055 ? Combined continuum flux
at (1+z)5100 Angstroms (G1)
99-103 F5.3 10-18W/m2/nm e_CC-100055 ? Uncertainty in CC-100055
105-111 F7.3 d JD-Hb-100055 ? Julian Date of J100055 Hβ
observation; JD-2456600
113-117 F5.3 10-17W/m2 Hb-100055 ? Integrated Hβ flux (G3)
119-123 F5.3 10-17W/m2 e_Hb-100055 ? Uncertainty in Hb-100055
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Global notes:
Note (G1): In units of 10-16erg/s/cm2/Å.
Note (G2): Flag as follows:
L = Photometry from Lijiang.
S = Spectrum from Lijiang.
W = Photometry from Wise.
Note (G3): In units of 10-14erg/s/cm2.
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History:
From electronic version of the journal
References:
Du et al. Paper I. 2014ApJ...782...45D 2014ApJ...782...45D Cat. J/ApJ/782/45
Wang et al. Paper II. 2014ApJ...793..108W 2014ApJ...793..108W Cat. J/ApJ/793/108
Hu et al. Paper III. 2015ApJ...804..138H 2015ApJ...804..138H
Du et al. Paper IV. 2015ApJ...806...22D 2015ApJ...806...22D This catalog
Du et al. Paper V. 2016ApJ...825..126D 2016ApJ...825..126D Cat. J/ApJ/825/126
Du et al. Paper VI. 2016ApJ...820...27D 2016ApJ...820...27D
Xiao et al. Paper VII. 2018ApJ...864..109X 2018ApJ...864..109X
Li et al. Paper VIII. 2018ApJ...869..137L 2018ApJ...869..137L
Du et al. Paper IX. 2018ApJ...856....6D 2018ApJ...856....6D Cat. J/ApJ/856/6
Lu et al. Paper X. 2019ApJ...877...23L 2019ApJ...877...23L Cat. J/ApJ/877/23
Cackett et al. Paper XI. 2020ApJ...896....1C 2020ApJ...896....1C Cat. J/ApJ/896/1
Hu et al. Paper XII. 2021ApJS..253...20H 2021ApJS..253...20H Cat. J/ApJS/253/20
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 23-Sep-2015