J/MNRAS/380/986 Lyman-break galaxies from GALEX (Burgarella+, 2007)
Lyman break galaxies at z∼1 and the evolution of dust attenuation in
star-forming galaxies with redshift.
Burgarella D., Le Floc'h E., Takeuchi T.T., Huang J.S., Buat V.,
Rieke G.H., Tyler K.D.
<Mon. Not. R. Astron. Soc., 380, 986-998 (2007)>
=2007MNRAS.380..986B 2007MNRAS.380..986B
ADC_Keywords: Galaxies, UV-excess ; Ultraviolet ; Redshifts
Keywords: galaxies: evolution - galaxies: starburst - infrared: galaxies -
ultraviolet: galaxies
Abstract:
Ultraviolet (UV) galaxies have been selected from the Galaxy Evolution
Explorer deep imaging survey. The presence of a far-UV (FUV) drop-out
in their spectral energy distributions (SEDs) proved to be a very
complete (83.3 per cent) but not very efficient (21.4 per cent) tool
for identifying Lyman break galaxies (LBGs) at z∼1. In this paper,
we explore the physical properties of these galaxies and how they
contribute to the total star formation rate (SFR).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 100 46321 *Ultraviolet-selected sample down to within COMBO 17
(C17) field of view with magnitudes estimated
from daophot
table3.dat 66 466 The Lyman break galaxies (LBG) sample 0.9≤z≤1.3,
as defined in the text, is listed here
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Note on table1.dat: We stress that the magnitudes of resolved objects must be
used with care because daophot is designed for point sources. However, for
galaxies beyond z∼0.5, daophot photometry is valid (see text for a more
detailed discussion).
46321 rows for 45366 idUV ([BLT2007]) are listed out of which 38057
correspond to GALEX objects without COMBO 17 counterparts, 6404 GALEX objects
have a single C17 counterpart and a few ones with up to four counterparts
(859x2, 42x2 and 4x4). Several rows with the same idUV are listed whenever
several C17 counterparts are found.
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See also:
II/253 : CDF-South: multi-colour data with COMBO-17 (Wolf+, 2004)
J/AJ/130/825 : GALEX ultraviolet variability catalog (Welsh+, 2005)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1 I1 --- o_C17 [0/4]? Number of C17 counterparts
3- 8 I6 --- [BLT2007] UV identification number
10- 18 F9.6 deg RAdeg UV right ascension in decimal degrees (J2000)
20- 29 F10.6 deg DEdeg UV declination in decimal degrees (J2000)
31- 37 F7.3 mag FUV ?=-99.000 Far-UV magnitude (1200-1775Å) in
AB system from PSF fitting
39- 44 F6.3 mag e_FUV ?=-9.000 rms uncertainty on FUV
46- 51 F6.3 mag NUV Near-UV magnitude (1775-3000Å) in AB system
from PSF fitting
53- 57 F5.3 mag e_NUV rms uncertainty on NUV
59- 63 I5 --- C17 ?=- C17 identification number,
[WDK2001] NNNNN in Simbad, Cat. II/253
65- 70 F6.3 mag Rmag ?=- R magnitude
72- 76 F5.3 mag e_Rmag ? rms uncertainty on Rmag
78- 84 F7.3 --- z ?=- Photometric redshift from C17
86 I1 --- q_z ?=- Quality flag for redshift
(-99.000 when not measured) (G1)
88- 93 F6.3 --- NUVph3 NUV magnitude estimated from 3" aperture phot.
95-100 F6.3 --- e_NUVph3 rms uncertainty on NUVph3
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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- 6 I6 --- [BLT2007] UV identification number
8- 16 F9.6 deg RAdeg UV right ascension in decimal degrees (J2000)
18- 27 F10.6 deg DEdeg UV declination in decimal degrees (J2000)
29- 34 F6.3 [10-7W] logL1150 UV luminosity at 1150Å
36- 42 F7.3 [10-7W] logL1800 ?=-99.000 Luminosity at 1800Å (U band) (1)
44- 50 F7.3 [10-7W] logLdust ?=-99.000 Dust luminosity (at 24um) (1)
52- 56 F5.3 --- z Photometric redshift from COMBO 17
58 I1 --- q_z Redshift quality flag (G1)
60- 66 F7.3 --- A1600 ?=-99.000 FUV dust attenuations (2)
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Note (1): No values -99.000 are listed in the columns if the LBG is not
detected in the U band (i.e. L1800) or at 24um (Ldust) down to 83uJy,
that is, BLBGs. By definition, all objects are observed in NUV and
should have an L1150 value. Objects with an Ldust value are RLBGs.
Note (2): Computed from the Ldust/L1600 ratio (L1600 interpolated from the
observed NUV and U bands)
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Global notes:
Note (G1): 0 means from MC(zml) and 1 from MC(z) in C17.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 31-Dec-2007