J/A+A/324/904 NGC 4151 line-continuum diagram sequences (Malkov+ 1997)
Complex variability pattern in NGC 4151.
I. Sequences on the line-continuum diagram
Malkov Yu.F., Pronik V.I., Sergeev S.G.
<Astron. Astrophys. 324, 904 (1997)>
=1997A&A...324..904M 1997A&A...324..904M (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, spectra ; Galaxies, Seyfert
Keywords: galaxies: active - galaxies: individual: NGC 4151 - galaxies: nuclei -
galaxies: Seyfert - galaxies: emission lines
Description:
We present the first results of an 8-year spectroscopic monitoring of
the Seyfert 1.5 galaxy NGC 4151 carried out with a CCD spectrograph
at the 2.6-m Shajn Telescope of the Crimean Astrophysical Observatory
in 1988-1995. Total of 202 H{ alpha} region spectra and 154 Hβ
region spectra have formed the data set. A ll spectra were calibrated
in flux using the narrow emission lines which were as summed to be
constant over the duration of the monitoring program.
Objects:
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RA (2000) DE Designation(s)
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12 10 32.5 +39 24 21 NGC 4151
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File Summary:
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FileName Lrec Records Explanations
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ReadMe 80 . This file
table1 32 35 Cassegrain H-alpha region fluxes (not corrected for
seeing effects)
table2 37 19 Cassegrain H-beta region fluxes (not corrected for
seeing effects)
table3 37 102 Nasmyth H-alpha region fluxes (corrected for seeing
effects)
table4 51 92 Nasmyth H-beta region fluxes (corrected for seeing
effects)
figure3.ps 66 8084 Seeing correction parameters phi and G for the line
and continuum fluxes measured in Nasmyth spectra
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Byte-per-byte Description of file: table1
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Bytes Format Units Label Explanations
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1- 11 F11.3 --- JD Average Julian Date for a night
14 I1 --- Nspect Number of averaged individual spectra
17- 20 F4.2 10-13mW/m2/nm F635nm Continuum flux density at 635.0 nm
23- 26 F4.2 10-13mW/m2/nm F681nm Continuum flux density at 681.5 nm
29- 32 F4.2 10-11mW/m2 SHalpha Integrated H-alpha line flux
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Byte-per-byte Description of file: table2
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Bytes Format Units Label Explanations
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1- 11 F11.3 --- JD Average Julian Date for a night
14 I1 --- Nspect Number of averaged individual spectra
17- 20 F4.2 10-13mW/m2/nm F512nm Continuum flux at 512.0 nm
23- 26 F4.2 10-12mW/m2 SHbeta Integrated H-beta line flux
29- 32 F4.2 10-12mW/m2 SHeII ? Integrated HeII 4686 line flux
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Byte-per-byte Description of file: table3
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Bytes Format Units Label Explanations
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1- 11 F11.3 --- JD Average Julian Date for a night
14 I1 --- Nspect Number of averaged individual spectra
17- 19 F3.1 arcsec Seeing Seeing
22- 25 F4.2 10-13mW/m2/nm F623nm Continuum flux at 623.0 nm
28- 31 F4.2 10-13mW/m2/nm F691nm Continuum flux at 691.0 nm
34- 37 F4.2 10-11mW/m2 SHalpha Integrated H-alpha line flux
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Byte-per-byte Description of file: table4
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Bytes Format Units Label Explanations
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1- 11 F11.3 --- JD Average Julian Date for a night
14- 15 I2 --- Nspect Number of averaged individual spectra
18- 20 F3.1 arcsec Seeing Seeing
23- 27 F5.2 10-13mW/m2/nm F448mn Continuum flux at 448.0 nm
30- 33 F4.2 10-13mW/m2/nm F512nm Continuum flux at 512.0 nm
36- 39 F4.2 10-12mW/m2 SHbeta Integrated H-beta line flux
42- 45 F4.2 10-12mW/m2 SHeII Integrated HeII 4686 line flux
48- 51 F4.2 10-12mW/m2 S4540 ? Integrated 4540 feature flux
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Acknowledgements: Yuri Malkov
(End) Patricia Bauer [CDS] 26-Feb-1997