CARS: the CFHTLS-Archive-Research Survey - II. Weighing dark matter halos of Lyman-break galaxies at z = 3–5

By H. Hildebrandt, J. Pielorz, T. Erben, L. Waerbeke, P. Simon, P. Capak. 2009

150 citations recorded by the source corpus.

Aims. We measure the clustering properties for a large samples of u- (z ~ 3), g- (z ~ 4), and r- (z ~ 5) dropouts from the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS) Deep fields. Methods. Photometric redshift distributions along with simulations allow us to de-project the angular correlation measurements and estimate physical quantities such as the correlation length, halo mass, galaxy bias, and halo occupation as a function of UV luminosity. Results. For the first time we detect a significant one-halo term in the correlation function at z ~ 5 . The comoving correlation lengths and halo masses of LBGs are found to decrease with decreasing rest-frame UV-luminosity. No significant redshift evolution is found in either quantity. The typical halo mass hosting an LBG is M ≳ 10^(12)h^(-1) M⊙ and the halos are typically occupied by less than one galaxy. Clustering segregation with UV luminosity is clearly observed in the dropout samples, however redshift evolution cannot clearly be disentangled from systematic uncertainties introduced by the redshift distributions. We study a range of possible redshift distributions to illustrate the effect of this choice. Spectroscopy of representative subsamples is required to make high-accuracy absolute measurements of high-z halo masses.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/367b2afa5951dd737999d7225521831cd6c6c15c

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Citations in the corpus

CFHTLenS: Improving the quality of photometric redshifts with precision photometry (2011, methodology): “We briefly summarise the most important differences in data processing between the CARS project, detailed in Erben et al. (2009) and Hildebrandt et al. (2009), and the current CFHTLenS data set.”
THE DEAD SEQUENCE: A CLEAR BIMODALITY IN GALAXY COLORS FROM z = 0 to z = 2.5 (2009, methodology): “At optical wavelengths we use public ugriz images in both fields from the CFHT Legacy Survey8 that were reduced by the CARS team (Hildebrandt et al. 2009).”
3D-HST WFC3-SELECTED PHOTOMETRIC CATALOGS IN THE FIVE CANDELS/3D-HST FIELDS: PHOTOMETRY, PHOTOMETRIC REDSHIFTS, AND STELLAR MASSES (2014, methodology): “In the optical we use ugriz Deep Canada–France– Hawaii Telescope Legacy Survey (CFHTLS) broadband images from the CARS team (Erben et al. 2009; Hildebrandt et al. 2009) and our own reduction of the HST/ACS F606W and F814W images from the CANDELS survey.”
THE NUMBER DENSITY AND MASS DENSITY OF STAR-FORMING AND QUIESCENT GALAXIES AT 0.4 ⩽ z ⩽ 2.2 (2011, methodology): “The NEWFIRM J123, H12, andK data are supplemented at optimal wavelengths by deepugriz imaging in both fields from the CFHT Legacy Survey12, as reduced by the CARS team 11 http://aegis.ucolick.org/ 12 http://cfht.hawaii.edu/Science/CFHTLS (Erben et al. 2009; Hildebrandt et al. 2009).”
The Early Data Release of the Dark Energy Spectroscopic Instrument (2023, methodology): “Three different approaches were adopted to target redshifts near z ∼ 2 ( the BX technique, see, e.g., Adelberger et al. 2004 ) and z ∼ 3 – 4 ( u - and g -dropout techniques, see., e.g., Hildebrandt et al. 2009 ) .”
Identification of the brightest Lyα emitters at z = 6.6 : Implications for the evolution of the luminosity function in the reionization era (2015, background): “For LBGs alternatively, the typical halo mass is one order of magnitude higher at these redshifts (e.g. Ouchi et al. 2003; Hamana et al. 2004; Ouchi et al. 2005; Hildebrandt et al. 2009), more typical of “Milky Way” dark matter haloes of 1012 M .”
Evidence of the accelerated expansion of the Universe from weak lensing tomography with COSMOS (2009, methodology): “We tested this by comparing the COSMOS-30 catalogue to photometric redshifts estimated by Hildebrandt et al. (2009) in the overlapping CFHTLS-D2 field using only opticalu∗griz bands and theBPZ photometric redshift code (Benitez 2000).”
DEEP U BAND AND R IMAGING OF GOODS-SOUTH: OBSERVATIONS, DATA REDUCTION AND FIRST RESULTS, (2009, background): “There have been other multicolor data sets for U-dropout LBG selection that reach somewhat deeper photometric limits (Sawicki & Thompson 2006), or similar depth over wider areas (e.g., the CFHT Legacy Survey; Hildebrandt et al. 2009).”
THE NEWFIRM MEDIUM-BAND SURVEY: PHOTOMETRIC CATALOGS, REDSHIFTS, AND THE BIMODAL COLOR DISTRIBUTION OF GALAXIES OUT TO z ∼ 3 (2011, methodology): “…broadband images of both survey fields from the Deep Canada-France-Haweaii Telescope Legacy Survey (CFHTLS)17, using image versions reduced by the CARS team (Erben et al. 2009; Hildebrandt et al. 2009), and JHKS broadband imaging from the WIRCam Deep Survey (WIRDS; Bielby et al.,in preparation).”
STATISTICS OF 207 Lyα EMITTERS AT A REDSHIFT NEAR 7: CONSTRAINTS ON REIONIZATION AND GALAXY FORMATION MODELS (2010, background): “The lower limit of the fitting range, θ = 10′′, is placed, because 1-halo term of high-z galaxies is dominant at this small scale (Ouchi et al. 2005b; Lee et al. 2006; Hildebrandt et al. 2007, 2009).”
GALAXY CLUSTERING IN THE NEWFIRM MEDIUM BAND SURVEY: THE RELATIONSHIP BETWEEN STELLAR MASS AND DARK MATTER HALO MASS AT 1 < z < 2 (2010, methodology): “The reduced CFHT mosaics were kindly provided to us by the CARS team (Erben et al. 2009; Hildebrandt et al. 2009).”
Great Optically Luminous Dropout Research Using Subaru HSC (GOLDRUSH). I. UV Luminosity Functions at $z \sim 4-7$ Derived with the Half-Million Dropouts on the 100 deg$^2$ Sky (2017, unknown): “Following the previous work that have used a similar filter set (Hildebrandt et al. 2009), we adopt g− r > 1.0, (1) r− i < 1.0, (2) g− r > 1.5(r− i)+ 0.8, (3) for g-dropouts, and r− i > 1.2, (4) i− z < 0.7, (5) r− i > 1.5(i− z)+ 1.0, (6) for r-dropouts.”