J/A+A/559/A10 Arp 102B spectral optical monitoring (Shapovalova+, 2013)
Spectral optical monitoring of a double-peaked emission line AGN Arp 102B.
Variability of spectral lines and continuum.
Shapovalova A.I., Popovic L.C., Burenkov A.N., Chavushyan V.H., Ilic D.,
Kollatschny W., Kovacevic A., Bochkarev N.G., Valdes J.R., Torrealba J.,
Patino-Alvarez V., Leon-Tavares J., Benitez E., Carrasco L., Dultzin D.,
Mercado A., Zhdanova V.E.
<Astron. Astrophys. 559, A10 (2013)>
=2013A&A...559A..10S 2013A&A...559A..10S
ADC_Keywords: Active gal. nuclei ; QSOs; Spectroscopy ; Line Profiles
Keywords: galaxies: active - galaxies: quasar: individual (Arp 102B) -
galaxies: quasar: emission lines - line: profiles
Abstract:
We present results of long-term (1987-2010) optical spectral
monitoring of the broad-line radio galaxy Arp 102B, a prototype of an
active galactic nucleus with double-peaked broad emission lines that
are commonly assumed to be emitted from an accretion disk.
To explore the structure of the broad-line region (BLR), we analyze
the light-curves of the broad Hα and Hβ lines and the
continuum flux. We aim to estimate the dimensions of the broad-line
emitting regions and the mass of the central black hole.
We used the cross correlation function to find lags between the lines
and continuum variations. We investigated the correlation between line
and continuum fluxes in more detail, and explored periodical
variations of the red-to-blue line flux ratio using Lomb-Scargle
periodograms.
Description:
Spectra of Arp 102B (during 142 nights) were taken with the 6-m and
1-m telescopes of the SAO RAS (Russia, 1998-2010), the INAOE 2.1-m
telescope of the Guillermo Haro Observatory (GHO) at Cananea, Sonora,
Mexico (1998-2007), the 2.1-m telescope of the Observatorio
Astronomico Nacional at San Pedro Martir (OAN-SPM), Baja California,
Mexico (2005-2007), and the 3.5-m and 2.2-m telescopes of Calar Alto
observatory, Spain (1987-1994).
Objects:
------------------------------------------------------
RA (2000) DE Designation(s)
------------------------------------------------------
17 19 14.49 +48 58 49.4 Arp 102B = MCG+08-31-041
------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 63 142 Log of spectroscopic observations
table4.dat 88 142 Measured continuum and line fluxes
table6.dat 35 87 Measured line segment fluxes of Hα
in units of 10-14erg/cm2/s
table7.dat 27 118 Measured line segment fluxes of Hβ
in units of 10-14erg/cm2/s
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- N Sequential number
5- 15 A11 "YYYY/MMM/DD" Date UT observation date
17- 24 F8.2 d JD Julian date of observation (JD-2400000)
26- 30 A5 --- Inst Instrumentation used as given in table 1 (1)
32- 34 F3.1 arcsec Ap1 Projected spectrograph entrance aperture
35 A1 --- --- [x]
36- 39 F4.2 arcsec Ap2 Projected spectrograph entrance aperture
41- 44 I4 0.1nm lam1 ? Wavelength range coverage
45 A1 --- --- [-]
46- 49 I4 0.1nm lam2 ? Wavelength range coverage
51- 55 A5 --- Rem Remark (Hb,Ha included)
57- 59 F3.1 arcsec see Mean seeing
60 A1 --- --- [-]
61- 63 F3.1 arcsec see2 ? Upper value of seeing when interval
--------------------------------------------------------------------------------
Note (1): Table1: Sources of spectroscopic observations
-------------------------------------------------------------------------------
Code Observatory Tel. aperture Aperture Focus of the
+ spectrograph (1) telescope
-------------------------------------------------------------------------------
L(N) SAO(Russia) 6m + Long slit 2.0x6.0 Nasmith
L(U) SAO(Russia) 6m + UAGS 2.0x6.0 Prime
L(Sc) SAO(Russia) 6m + Scorpio 1.0x6.07 Prime
GHO Gullermo Haro (Mexico) 2.1m + B&C 2.5x6.0 Cassegrain
SPM San Pedro Martir (Mexico) 2.1m + B&C 2.5x6.0 Cassegrain
Z2K SAO(Russia) 1m + GAD 4.0x9.45 Cassegrain
CA1 Calar Alto(Spain) 3.5m + B&C /TWIN (1.5-2.1)x3.5 Cassegrain
CA2 Calar Alto(Spain) 2.2m + B&C 2.0x3.5 Cassegrain
-------------------------------------------------------------------------------
Note (1): Projected spectrograph entrance apertures
(slit widthxslit length in arcsec).
-------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- N Sequential number
5- 15 A11 "YYYY/MMM/DD" Date UT observation date
17- 24 F8.2 d JD Julian date of observation (JD-2400000)
26- 30 F5.2 aW/m2/nm Fblue ?=- Continuum blue (5100Å) flux (2)
32- 35 F4.2 aW/m2/nm e_Fblue ?=- rms uncertainty on Fblue (2)
37- 40 F4.2 aW/m2/nm Fbluec ?=- Continuum blue (5100Å) flux corrected
for host-galaxy contribution (2)
42- 45 F4.2 aW/m2/nm e_Fbluec ?=- rms uncertainty on Fbluec (2)
47- 51 F5.2 10-17W/m2 F(Hb) ?=- Hβ line flux (G1)
53- 56 F4.2 10-17W/m2 e_F(Hb) ?=- rms uncertainty on F(Hb) (G1)
58- 62 F5.2 10-17W/m2 F(Ha) ?=- Hα line flux (G1)
64- 67 F4.2 10-17W/m2 e_F(Ha) ?=- rms uncertainty on F(Ha) (G1)
69- 73 F5.2 aW/m2/nm Fred ?=- Continuum red (6200Å) flux (2)
75- 78 F4.2 aW/m2/nm e_Fred ?=- rms uncertainty on Fred (2)
80- 83 F4.2 aW/m2/nm Fredc ?=- Continuum red (6200Å) flux corrected
for host-galaxy contribution (2)
85- 88 F4.2 aW/m2/nm e_Fredc ?=- rms uncertainty on Fredc (2)
--------------------------------------------------------------------------------
Note (2): continuum fluxes in 10-16erg.cm-2.s-1.Å-1
= 10-18W.m-2.nm-1.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table6.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- N [1/87] Sequential number
4- 8 I5 d MJD [46975/55367] Modified Julian date
10- 15 F6.3 10-17W/m2 F(Ha)b ?=- Hα line blue flux (G1)
17- 22 F6.3 10-17W/m2 F(Ha)r1 ?=- Hα line red 1 flux (G1)
24- 28 F5.3 10-17W/m2 F(Ha)r2 ?=- Hα line red 2 flux (G1)
30- 35 F6.3 10-17W/m2 F(Ha)c ?=- Hα line code flux (G1)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table7.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- N [1/118] Sequential number
5- 9 I5 d MJD [46975/55367] Modified Julian date
11- 15 F5.3 10-17W/m2 F(Hb)b ?=- Hβ line blue flux (G1)
17- 21 F5.3 10-17W/m2 F(Hb)c ?=- Hβ line core flux (G1)
23- 27 F5.3 10-17W/m2 F(Hb)r ?=- Hβ line red flux (G1)
--------------------------------------------------------------------------------
Global Notes:
Note (G1): line fluxes in 10-14erg.cm-2.s-1 = 10-17W.m-2
Acknowledgements:
Dragana Ilic, dilic(at)matf.bg.ac.rs
(End) Patricia Vannier [CDS] 24-Oct-2013