Publications of The Korean Astronomical Society (천문학논총)

The Korean Astronomical Society (한국천문학회)
권호 표지
DOI QR코드

DOI QR Code

HIGH REDSHIFT GALAXY CLUSTERS IN ELIAS-N1/N2 FIELDS WITH A NEW COLOR SELECTION TECHNIQUE

  • HYUN, MINHEE (Center for the Exploration of the Origin of the Universe(CEOU), Astronomy Program, Dept. of Physics and Asronomy, Seoul National University) ;
  • IM, MYUNGSHIN (Center for the Exploration of the Origin of the Universe(CEOU), Astronomy Program, Dept. of Physics and Asronomy, Seoul National University) ;
  • KIM, JAE-WOO (Center for the Exploration of the Origin of the Universe(CEOU), Astronomy Program, Dept. of Physics and Asronomy, Seoul National University) ;
  • LEE, SEONG-KOOK (Center for the Exploration of the Origin of the Universe(CEOU), Astronomy Program, Dept. of Physics and Asronomy, Seoul National University)
  • Received : 2014.11.30
  • Accepted : 2015.06.30
  • Published : 2015.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

Galaxy clusters, the largest gravitationally bound systems, are an important subject of study to place constraints on cosmological models. Moreover, they are excellent places to test galaxy evolution models in connection to their environments. To date, massive clusters have been found unexpectedly (Kang & Im 2009; Gonzales et al. 2012) and the evolution of galaxies in clusters is still controversial (Elbaz et al. 2007; Faloon et al. 2013). Finding galaxy cluster candidates at z > 1 in a wide, deep imaging survey data will enable us to solve such issues of modern extragalactic astronomy. We report new candidate galaxy clusters in one of the wide and deep survey fields, the European Large Area ISO Survey North1 (ELAIS-N1) and North2 (ELAIS-N2) fields, covering a sky area of $8.75deg^2$ and $4.85deg^2$ each. We also suggest a new useful color selection technique to separate z > 1 galaxies from low - z galaxies by combining multi-wavelength data.

Keywords

References

  1. Elbaz, D., Daddi, E., & Le Borgne, D., et al., 2007, The Reversal of the Star Formation-density Relation in the Distant Universe, A&A, 468, 33 https://doi.org/10.1051/0004-6361:20077525
  2. Faloon, A. J., Webb, T. M. A., & Ellingson, E., et al., 2013, The Structure of the Merging RCS 231953+00 Supercluster at z-0.9, ApJ, 768, 104 https://doi.org/10.1088/0004-637X/768/2/104
  3. Gladders, M. D., Yee, H. K. C., & Majumdar, S., et al., 2007, Cosmological Constraints from the Red-Sequence Cluster Survey, ApJ, 655, 128 https://doi.org/10.1086/509909
  4. Gonzalez, A. H., Stanford, S. A., & Brodwin, M., et al., 2012, IDCS J1426.5+3508: Cosmological Implications of a Massive, Strong Lensing Cluster at z = 1:75, ApJ, 753, 163 https://doi.org/10.1088/0004-637X/753/2/163
  5. Gwyn, S. D. J., 2008, MegaPipe: The MegaCam Image Stacking Pipeline at the Canadian Astronomical Data Centre, PASP, 120, 212 https://doi.org/10.1086/526794
  6. Kang, E. & Im, M., 2009, Overdensities of Galaxies at z-3.7 in Chandra Deep Field-South, ApJ, 691, L33 https://doi.org/10.1088/0004-637X/691/1/L33
  7. Lawrence, A., Warren, S. J., & Almaini, O., et al., 2007, The UKIRT Infrared Deep Sky Survey (UKIDSS), MNRAS, 379, 1599 https://doi.org/10.1111/j.1365-2966.2007.12040.x
  8. Lonsdale, C. J., Smith, H. E., & Rowan-Robinson, M., et al., 2003, SWIRE: The SIRTF Wide-Area Infrared Extragalactic Survey, PASP, 115, 897 https://doi.org/10.1086/376850
  9. Mortonson, M. J., Hu, W., & Huterer, D., 2011, Simultaneous Falsification of $\Lambda$CDM and Quintessence with Massive, Distant Clusters, PhRvD, 83, 023015
  10. Muzzin, A., Wilson, G., & Demarco, R., et al., 2013, Discovery of a Rich Cluster at z = 1:63 using the Rest-frame $1.6{\mu}m$ "Stellar Bump Sequence" Method, ApJ, 767, 39 https://doi.org/10.1088/0004-637X/767/1/39