J/ApJ/697/1410          Lyman break galaxies at z~1.8-2.8            (Ly+, 2009)
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Lyman break galaxies at z ~ 1.8-2.8: GALEX/NUV imaging of the Subaru Deep Field.
    Ly C., Malkan M.A., Treu T., Woo J.-H., Currie T., Hayashi M.,
    Kashikawa N., Motohara K., Shimasaku K., Yoshida M.
   <Astrophys. J., 697, 1410-1432 (2009)>
   =2009ApJ...697.1410L
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ADC_Keywords: Galaxies, photometry ; Redshifts ; Spectroscopy
Keywords: galaxies: evolution - galaxies: high-redshift - galaxies: luminosity
          function, mass function - galaxies: photometry

Abstract:
    A photometric sample of ~8000 V<25.3 candidate Lyman break galaxies
    (LBGs) has been selected by combining Subaru/Suprime-Cam BVRCi'z'
    optical data with deep GALEX/NUV imaging of the Subaru Deep Field.
    Follow-up spectroscopy confirmed 24 LBGs at 1.5<~z<~2.7. Among the
    optical spectra, 12 have Ly{alpha} emission with rest-frame equivalent
    widths of ~5-60{AA}. The success rate for identifying LBGs as
    NUV-dropouts at 1.5<z<2.7 is 86%. The rest-frame UV (1700{AA})
    luminosity function (LF) is constructed from the photometric sample
    with corrections for stellar contamination and z<1.5 interlopers
    (lower limits). The LF is 1.7+/-0.1 (1.4+/-0.1 with a hard upper limit
    on stellar contamination) times higher than those of z~2 BXs and z~3
    LBGs.

Description:
    The Subaru Deep Field (SDF; Kashikawa et al. 2004PASJ...56.1011K),
    centered at RA=13h24m38.9s, DE=+27{deg}29'25.9", is a deep wide-field
    (857.5arcmin^2^) extragalactic survey with optical data obtained from
    Suprime-Cam mounted on the Subaru Telescope. It was imaged with GALEX
    in the NUV(1750-2750{AA}) between 2005 March 10 and 2007 May 29
    (GI1-065) with a total integration time of 138176s.
    The Keck Low-Resolution Imaging and Spectrograph (LRIS) was used to
    target candidate LBGs in multislit mode on 2007 January 23-25.
    Spectra of NUV-dropouts from the final photometric catalog were
    obtained with the multifiber optical spectrograph Hectospec on the
    6.5m MMT on 2008 March 13 and April 10, 11, and 14.
    Spectra of BzKs were obtained on 2007 May 3-4 with Subaru using the
    Multi-Object Infrared Camera and Spectrograph (MOIRCS).

File Summary:
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 FileName      Lrecl  Records   Explanations
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ReadMe            80        .   This file
table1.dat       130       75   Properties of spectroscopically targeted
                                NUV-dropouts and BzKs
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See also:
   B/subaru : Log of Subaru Prime Focus Camera Exposures (ADAC NAOJ, 2007)
   J/MNRAS/401/1521 : Stellar masses of Lyman break galaxies at z~3 (Magdis+,
                      2010)
   J/MNRAS/380/986  : Lyman-break galaxies from GALEX (Burgarella+, 2007)
   J/ApJ/657/738    : SDF galaxies multi-photometry (Ly+, 2007)
   J/PASJ/58/313    : Ly{alpha} emitters in the SUBARU Deep Field (Shimasaku+,
                      2006)
   J/PASJ/57/165    : Ly{alpha} emitters in the SUBARU Deep Field (Taniguchi+,
                      2005)
   J/ApJ/592/728    : Lyman break galaxies at redshift z~3 (Steidel+, 2003)

Byte-by-byte Description of file: table1.dat
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   Bytes Format Units   Label    Explanations
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   1-  5  A5    ---     Sample   Sample (1)
   7- 13  A7    ---     B-ID     B-band catalog from SExtractor
                                 identification (2)
  15- 32  A18   ---     Name     SDF name (HHMMSS.s+DDMMSS.ss; J2000)
      34  A1    ---   l_NUV-B    Limit flag on NUV-B
  35- 39  F5.3  mag     NUV-B    NUV-B band color index
  41- 46  F6.3  mag     B-V      B-V color index
      48  A1    ---   l_NUV      Limit flag on NUV
  49- 54  F6.3  mag     NUV      GALEX NUV AB magnitude
  56- 61  F6.3  mag     Bmag     Subaru B-band AB magnitude
  63- 68  F6.3  mag     Vmag     Subaru V-band AB magnitude
  70- 75  F6.3  mag     Rcmag    Subaru Rc band AB magnitude
  77- 82  F6.3  mag     i'mag    Subaru i'-band AB magnitude
  84- 89  F6.3  mag     z'mag    Subaru z'-band AB magnitude
  91- 97  F7.4  ---     z        ? Cross-correlated redshift
      99  A1    ---   f_z        [d] low S/N (3)
 101-105  F5.2  ---     R        ? Cross-correlation signal to noise
 107-116  A10   ---     Temp     Template yielding the highest R value (4)
 118-122  F5.1  zW/m2   F(Lya)   ? Ly{alpha} line flux (in units of
                                 10^-18^erg/s/cm^2^ = 10^-21^W/m^2^)
     123  A1    ---   f_F(Lya)   [c] Flag on F(Lya) (5)
 125-129  F5.2  0.1nm   EW0      ? Ly{alpha} equivalent width
     130  A1    ---   f_EW0      [c] u,nusual Ly{alpha} profile (5)
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Note (1): Sample as follows:
   ELS   = With emission lines
   ALS   = Absorption line systems
   Z>1.5 = z>1.5 interlopers and stars
   Amb   = Ambiguous NUV-dropouts
   Und   = Undetected NUV-dropouts
Note (2): Identified sources are based on an R>3.0 criterion (exceptions
     are AGNs, stars, and those with emission lines). The character
     following the ID number corresponds to the spectrograph used: 
     "H" = Hectospec, "L" = LRIS, "M" = MOIRCS.
Note (3): d = The values reported here correspond to the best cross-correlated
     results, but may be wrong due to the low S/N of the spectra.
Note (4): 
  * the values 1 to 4 correspond to the four spectra of Steidel et al. 
    (2003, Cat. J/ApJ/592/728) from strongest Ly{alpha} absorption to
    emission;
  * the values 5 and 6 refer to the Shapley et al. (2003ApJ...588...65S)
    composite and cB58 spectra (spectra of MS 1512-cB58 from Pettini et al.
    2000ApJ...528...96P), respectively. 
  * the value 7 corresponds to the rest-frame NUV spectra from Savaglio 
    et al. (2004ApJ...602...51S), and "AGN" refers to a SDSS QSO template.
  * For interlopers, the six SDSS composite spectra presented in Yip et al. 
    (2004AJ....128..585Y) correspond to [1] to [6] from strongest 
    absorption-line to strongest emission-line systems. [7], [8], 
    and [9] correspond to the rvsao templates "femtemp," "EA," and 
    "eatemp," respectively.
Note (5): 
   c = As discussed in the Appendix, this source shows an unusual Ly{alpha}
       profile, so the reported flux and rest-frame EW excluded the blue
       excess by deblending in IRAF splot.
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Nomenclature Notes:
    Table 1: galaxies are <[LMT2009] SDF JHHMMSS.s+DDMMSS.ss> in Simbad.

History:
    From electronic version of the journal

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(End)                                     Emmanuelle Perret [CDS]    31-May-2011