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J/ApJ/599/886       Emission lines of radio-loud AGN         (Eracleous+, 2003)

Completion of a survey and detailed study of double-peaked emission lines in radio-loud active galactic nuclei. Eracleous M., Halpern J.P. <Astrophys. J., 599, 886-908 (2003)> =2003ApJ...599..886E
ADC_Keywords: Active gal. nuclei ; Galaxies, spectra Keywords: galaxies: active - galaxies: nuclei Abstract: We report the completion of a survey of radio-loud active galactic nuclei (AGNs) begun in an earlier paper (Eracleous & Halpern, 1994ApJS...90....1E) with the main goal of finding and studying broad, double-peaked Balmer lines. We present Hα spectra of 13 more broad-lined objects, including three with double-peaked Hα profiles. The final sample includes 106 radio-loud AGNs. In our final census 20% of objects have Hα lines with double peaks or twin shoulders (the "double-peaked emitters"), and of these 60% (the disklike emitters) can be fitted quite well with a model attributing the emission to a circular, relativistic, Keplerian disk. In four objects where broad Hβ and Mg II lines have been observed, we compare the profiles with models of photoionized accretion disks and find them to be in reasonable agreement. Description: The observations presented here were carried out over several observing runs using four different telescopes and spectrographs, namely, the 4m telescope and Ritchie-Chretien (RC) spectrograph and the 2.1m telescope and GoldCam spectrograph at Kitt Peak National Observatory, the 4m telescope and RC spectrograph at Cerro Tololo Inter-American Observatory, the 3m Shane telescope and Kast double spectrograph at Lick Observatory, and the 2.4m telescope at MDM observatory. Most observations were carried out between 1993 and 1995, and a small number of them were carried out between 1997 and 2000. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table5.dat 54 96 Emission-Line Ratios refs.dat 80 16 References
See also: J/ApJS/150/181 : Redshifts of 110 radio-loud AGN (Eracleous+, 2004) Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 3 A3 --- AType AGN type (3) 5- 20 A16 --- Name AGN name (1) 22- 26 F5.3 --- OI/OIII ? Narrow line [O I] (6300)/[O III] (5007) ratio 28- 32 F5.3 --- OII/OIII ? Narrow line [O II] (3727)/[O III] (5007) ratio 34- 37 F4.2 --- Ha/Hb ? Broad line Hα/Hβ ratio 39 A1 --- f_Ha/Hb [cd] Flag on Ha/Hb (2) 41- 44 F4.2 --- MgII/Hb ? Broad line Mg II (2800)/Hβ ratio 46 A1 --- f_MgII/Hb [cd] Flag on MgII/Hb (2) 48- 54 A7 --- Ref References, in refs.dat file
Note (1): All objects have redshifts less than 0.6. Line ratios have been corrected for Galactic reddening using the Seaton (1979MNRAS.187p..73S) law and the color excess reported by Schlegel et al. (1998ApJ...500..525S). Uncertainties on line ratios from this work and from paper I are typically 20%. Note (2): Flags: c = The Ha/Hb and MgII/Hb ratios of 3C 17 are fairly uncertain because of the weakness of Hβ. The Ha/MgII ratio, however, is not as uncertain; its value is 5.36. d = The reported line ratio refers to the total flux of the broad and narrow lines combined. Note (3): the type is either "DPE" = Double-Peaked Emitter, or blank for other Radio-Loud AGNs.
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Ref Reference number 4- 22 A19 --- BibCode BibCode 24- 43 A20 --- Aut Author's name 47- 80 A34 --- Com Comments
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 13-Feb-2004
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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