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J/AJ/131/2018     Galaxies with large velocity dispersions     (Bernardi+, 2006)

A search for the most massive galaxies: double trouble? Bernardi M., Sheth R.K., Nichol R.C., Miller C.J., Schlegel D., Frieman J., Schneider D.P., Subbarao M., York D.G., Brinkmann J. <Astron. J., 131, 2018-2034 (2006)> =2006AJ....131.2018B
ADC_Keywords: Galaxies, spectra ; Redshifts ; Velocity dispersion Keywords: galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: fundamental parameters - galaxies: photometry - galaxies: stellar content Abstract: We describe the results of a search for galaxies with large (350≥km/s) velocity dispersions. The largest systems we have found appear to be the extremes of the early-type galaxy population: compared to other galaxies with similar luminosities, they have the largest velocity dispersions and the smallest sizes. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 86 57 Physical parameters and median errors of the objects in our sample that are not obvious superpositions table2.dat 66 48 *Physical parameters of the objects in our sample that are almost certainly superpositions
Note on table2.dat: For these objects, the measured parameters of the blend are almost certainly not those of the individual components, so the measurement errors are not reported.
See also: http://www.sdss.org : SDSS Home Page Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [SDSS] 6- 23 A18 --- SDSS SDSS name (JHHMMSS.s+DDMMSS.s) 25- 31 F7.5 --- z Redshift 33- 38 F6.2 mag rMAG Absolute r band magnitude 40- 43 F4.2 mag e_rMAG Error in rMAG 45- 48 F4.2 mag g-r Rest-frame model g-r color index 50- 53 F4.2 mag e_g-r Error in g-r 55- 58 F4.2 [kpc] logR r-band size 60- 63 F4.2 [kpc] e_logR Error in logR 65- 67 I3 km/s sigma Aperture-corrected velocity dispersion 69- 70 I2 km/s e_sigma Error in sigma 72- 76 F5.3 mag Mg2 ? Mg2 line strength 78- 82 F5.3 mag e_Mg2 ? Error in Mg2 84- 85 I2 --- S/N Signal-to-noise ratio (1) 86 A1 --- f_S/N [*] Indicates objects for which evidence for superposition is the weakest
Note (1): Estimates of Mg2 were only made if S/N≥18.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [SDSS] 6- 23 A18 --- SDSS SDSS name (JHHMMSS.s+DDMMSS.s) 25- 31 F7.5 --- z Spectroscopic redshift 33- 38 F6.2 mag rMAG Absolute r band magnitude 40- 43 F4.2 mag g-r g-r color index 45- 48 F4.2 [kpc] logR r-band size 50- 53 I4 km/s Delcz ? Line of sight separation between the two components 55- 57 I3 km/s sigma Aperture-corrected velocity dispersion 59- 63 F5.3 mag Mg2 ? Mg2 line strength 65- 66 I2 --- S/N Signal-to-noise ratio
History: From electronic version of the journal
(End) Marianne Brouty [CDS] 07-Mar-2007
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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