J/AJ/135/1837 Spectroscopy in A2199 and Virgo clusters (Rines+, 2008)
Spectroscopic determination of the luminosity function in the galaxy clusters
A2199 and Virgo.
Rines K., Geller M.J.
<Astron. J., 135, 1837-1848 (2008)>
=2008AJ....135.1837R 2008AJ....135.1837R
ADC_Keywords: Clusters, galaxy ; Photometry, SDSS ; Redshifts
Keywords: cosmology: observations - galaxies: clusters: general -
galaxies: elliptical and lenticular, cD -
galaxies: kinematics and dynamics
Abstract:
We report a new determination of the faint end of the galaxy
luminosity function (LF) in the nearby clusters Abell 2199 and Virgo
using data from the Sloan Digital Sky Survey (SDSS) and the Hectospec
multifiber spectrograph on the MMT. The luminosity function of A2199
is consistent with a single Schechter function to
Mr=-15.6+5log(h70) with a faint-end slope of alpha=-1.13±0.07
(statistical). The LF in Virgo extends to Mr~-13.5∼M*+8 and has a
slope of alpha=-1.28±0.06 (statistical).
Description:
We obtained optical spectroscopy of A2199 with MMT/Hectospec in 2007
July under marginal observing conditions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 39 479 Spectroscopic Data for A2199
table2.dat 64 379 SDSS data for spectroscopically confirmed Virgo
members
table3.dat 54 105 SDSS data for probable Virgo members
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See also:
J/MNRAS/333/423 : Luminosity function of the Virgo Cluster (Trentham+, 2002)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Hour of Right Ascension (J2000)
4- 5 I2 min RAm Minute of Right Ascension (J2000)
7- 11 F5.2 s RAs Second of Right Ascension (J2000)
12 A1 --- DE- Sign of Declination (J2000)
13- 14 I2 deg DEd Degree of Declination (J2000)
16- 17 I2 arcmin DEm Arcminute of Declination (J2000)
19- 22 F4.1 arcsec DEs Arcsecond of Declination (J2000)
24- 29 I6 km/s cz Heliocentric redshift
31- 33 I3 km/s e_cz The 1σ error in cz
35- 39 F5.2 --- R Kurtz & Mink (1998PASP..110..934K 1998PASP..110..934K)
cross-correlation score
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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- 9 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000)
11- 18 F8.5 deg DEdeg Declination in decimal degrees (J2000)
20- 24 F5.2 mag rmag Extinction corrected SDSS r band magnitude
26- 30 F5.2 mag g-r SDSS (g-r) color index
32- 36 F5.2 mag/arcsec2 mur SDSS r band surface brightness
38- 46 F9.6 --- z Redshift
48- 52 F5.3 deg ADist Projected angular distance from M87
54- 58 F5.3 Mpc PDist Projected physical distance from M87
60- 64 A5 --- Flag Problematic photometry/spectroscopy flag (1)
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Note (1): Problematic photometry/spectroscopy flags as follows:
1 = problematic centroiding, often caused by blends
2 = Galaxy light is "shredded" into multiple components
3 = Redshift taken from NED
4 = Alternate redshift taken from NED
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000)
11- 18 F8.5 deg DEdeg Declination in decimal degrees (J2000)
20- 24 F5.2 mag rmag Extinction corrected SDSS r band magnitude
26- 30 F5.2 mag g-r SDSS (g-r) color index
32- 36 F5.2 mag/arcsec2 mur SDSS r band surface brightness
38- 42 F5.3 deg ADist Projected angular distance from M87
44- 48 F5.3 Mpc PDist Projected physical distance from M87
50- 54 A5 --- Flag Problematic photometry/spectroscopy flag (1)
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Note (1): Problematic photometry/spectroscopy flags as follows:
1 = problematic centroiding, often caused by blends
2 = Galaxy light is "shredded" into multiple components
3 = modelMag instead of petroMag
4 = No redshift available
5 = Low confidence SDSS redshift available
6 = Low confidence NED redshift available
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 04-Jan-2011