J/AZh/71/189 Gas Kinematics from Halpha line in NGC 4151 (Sergeev, 1994)
Gas kinematics: estimation of the broad-line region size and the central
source mass from the profile variability of the Hα line in NGC 4151
Sergeev S.G.
<Astron. Zh. 71, 189 (1994)>
=1994AZh....71..189S 1994AZh....71..189S
ADC_Keywords: Active gal. nuclei ; Spectroscopy
Description:
The nucleus spectra of the Seyfert galaxy NGC 4151 obtained
in 1988-1991 were analyzed in order to study the profile
variability of the Ha line resulting from ionizing continuum
flux variations. At the time of this galaxy monitoring, the
response of the integral flux of the Ha line was almost
linear and the average profile shape did not change by more
than 5%.
Object:
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RA (2000) DE Designation
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12 10 32.5 +39 24 20 NGC 4151
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 41 79 Light curves of continuum and Hα line
table3.dat 25 68 Photometry
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 8 A8 "DD/MM/YY" Date Observation date
12- 13 I2 h Time Universal time
16- 25 F10.2 d JD [2447216/2448332] Julian date of observation
28- 31 F4.2 10-16W/m2/nm Fcont Flux in continuum at wavelengths 6563 Å
34- 37 F4.2 10-14W/m2 F6563A Flux in H(alpha) for 6449-6695 Å
40- 41 I2 --- SN Signal to noise ratio per pixel in continuum
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Note: 10-16W/m2/nm = 10-14 erg/cm2/s/A in original
10-14W/m2 = 10-11 erg/cm2/s in original
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 9 F9.1 d JD [2447183/2448473] Julian date of observation
12- 16 F5.2 mag Vmag V magnitude
19- 22 F4.2 0.1uW/m2/m Fcont Flux in continuum at 6563 A
25 I1 --- Notes [1/2] Notes (1)
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Note (1):1: Data of Lyutyi (1992, private communication)
2: Data of Merkulova and Metik (1993IzKry..87..135M 1993IzKry..87..135M)
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(End) Veta Avedisova [INASAN] 30-Dec-1996