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J/A+A/511/A12    Low-luminosity galaxies in NGC 5846 group  (Eigenthaler+, 2010)

Revisiting the low-luminosity galaxy population of the NGC 5846 group with SDSS. Eigenthaler P., Zeilinger W.W. <Astron. Astrophys., 511, A12-12 (2010)> =2010A&A...511A..12E
ADC_Keywords: Clusters, galaxy ; Photometry, SDSS ; Redshifts Keywords: galaxies: clusters: individual: NGC 5846 group - galaxies: dwarf - galaxies: photometry - methods: data analysis Abstract: Low-luminosity galaxies are known to outnumber the bright galaxy population in poor groups and clusters of galaxies. Yet, the investigation of low-luminosity galaxy populations outside the Local Group remains rare and the dependence on different group environments is still poorly understood. Previous investigations have uncovered the photometric scaling relations of early-type dwarfs and a strong dependence of morphology with environment. The present study aims to analyse the photometric and spectroscopic properties of the low-luminosity galaxy population in the nearby, well-evolved and early-type dominated NGC 5846 group of galaxies. It is the third most massive aggregate of early-type galaxies after the Virgo and Fornax clusters in the local universe. Photometric scaling relations and the distribution of morphological types as well as the characteristics of emission-line galaxies are investigated. Description: Spectroscopically selected low-luminosity group members from the Sloan Digital Sky Survey with cz<3000km/s within a radius of 2°=0.91Mpc around NGC 5846 are analysed. Surface brightness profiles of early-type galaxies are fit by a Sersic model ∝r1/n. Star formation rates, oxygen abundances, and emission characteristics are determined for emission-line galaxies. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 82 74 Galaxies within 2° around NGC 5846 as studied in this work
See also: II/294 : SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009) J/AJ/130/1502 : NGC 5846 group: photometry and spectroscopy (Mahdavi+, 2005) http://www.sdss.org : SDSS HomePage Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Galaxy Galaxy name (1) 12 A1 --- n_Galaxy [d] Individual note (2) 14- 16 I3 --- M05 ? Galaxy identification from Mahdavi et al. (2005, Cat. J/AJ/130/1502), <[MTT2005] N5846-NNN> in Simbad 18- 19 I2 h RAh Right ascension (J2000) (3) 21- 22 I2 min RAm Right ascension (J2000) (3) 24- 28 F5.2 s RAs Right ascension (J2000) (3) 30 A1 --- DE- Declination sign (J2000) (3) 31- 32 I2 deg DEd Declination (J2000) (3) 34- 35 I2 arcmin DEm Declination (J2000) (3) 37- 40 F4.1 arcsec DEs Declination (J2000) (3) 42- 46 F5.1 arcmin Dist Projected radial distance to NGC 5846 48- 51 I4 km/s cz Heliocentric cz velocity 53- 55 I3 km/s e_cz rms uncertainty on cz 57- 61 F5.2 mag i'mag SDSS i' magnitude (3) 63- 67 F5.2 mag r'-i' SDSS r'-i' colour index (3) 69- 74 F6.2 mag BMAG Absolute B magnitude 76- 82 A7 --- Type Morphological type
Note (1): Galaxies with N5846_NN name are identified as <[EZ2010] N5846 NN> in Simbad. Note (2): N5846_41/42 are two HII regions classified as individual galaxies in SDSS (see Sect. 3.2). Note (3): Coordinates and magnitudes taken from SDSS DR4.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 14-Feb-2011
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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