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CLASH at the Frontier Fields

CLASH at the Frontier Fields. Dan Coe, Adi Zitrin , Julian Merten. Abell 1689 55 orbits ACS Blakeslee, Alamo-Martinez. CLASH has revealed two robust candidates in the first 500 Myr. MACS1149-JD z ~ 9.6 (490 Myr ) Wei Zheng et al. (2012) Nature 489, 406.

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CLASH at the Frontier Fields

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  1. CLASH at the Frontier Fields Dan Coe, AdiZitrin, Julian Merten Abell 1689 55 orbits ACS Blakeslee, Alamo-Martinez CLASH at the Frontier Fields

  2. CLASH has revealed two robust candidates in the first 500 Myr MACS1149-JDz ~ 9.6 (490 Myr)Wei Zheng et al. (2012)Nature 489, 406 MACS0647-JDz ~ 10.8 (420 Myr)Dan Coe et al. (2013)ApJ 762, 32 in 2 / 5 “high-magnification” CLASH clusters CLASH at the Frontier Fields

  3. Did galaxies bulid up dramatically at z ~ 10? time TODAY (13.7) BIG BANG then run out of gas galaxies build up Only one z~10 candidate found where six were expected (Bouwens11) dramaticevolution? UDF 2009 adapted from Bouwens12 see also Oesch12,13 CLASH at the Frontier Fields

  4. CLASH discoveries are consistent with expectations which include enough faint galaxies to reionize the universe time TODAY (13.7) BIG BANG CLASH joint gradual dramatic adapted from Coe et al. 2013 CLASH at the Frontier Fields

  5. Field searches still suggest z ~ 10 deficit, but more data are required Oesch13 M* evolution Φ* evolution CLASH at the Frontier Fields

  6. z ~ 10 luminosity function still very uncertain Oesch13 CLASH at the Frontier Fields

  7. Large extrapolations required to estimate faint galaxy contribution to reionization MUV -10 (smallest galaxies?) z ~ 8 luminosityfunction lensing (conservative: 10x magnif.) JWST+ lensing faint end slope important • other uncertainties: • escape fraction • clumping factor field data (Bradley12) UDF ERS BoRG Galaxy Number Density CLASH at the Frontier Fields

  8. A deeper HST WFC3/IR cluster survey white paper led by Dan Coe & Wei Zhengsubmitted to the Hubble Deep Fields Initiativescience working group advising Matt Mountain on his use of Director’s Discretionary time James Bullock (chair) Mark Dickinson Steven Finkelstein Adriano Fontana Ann HornschemeierCardiff Jennifer Lotz PriyaNatarajan Alexandra Pope Brant Robertson Brian Siana Jason Tumlinson Michael Wood-Vasey resulting in the Frontier Fields CLASH at the Frontier Fields

  9. Our deepest views of galaxies to date (intrinsic AB mag > 31) 840 HST orbits (director’s discretionary)Fall 2013 – Fall 2016 Matt MountainJen Lotz The Frontier Fields 4 / 6 are CLASH clusters AbellS1063 (RXJ2248-4431) (1) (3) Abell 2744 Pandora’s Cluster MACS0717+37 Subject to director’s approval (5) dark matter gas MACS0416-24 (2) (4) MACS1149+22 Abell370 (6) http://www.stsci.edu/hst/campaigns/frontier-fields/ CLASH at the Frontier Fields

  10. Frontier Fields should yield ~35 – 120 z > 8.5 galaxies distinguishing between evolution scenarios gradual evolution dramatic evolution 5s 5s CLASH 5s CLASH 5s CLASH at the Frontier Fields

  11. Frontier Fields Hubble will observe both lensed and “blank” fields simultaneously in parallel WFC3/IR ACS “blank” field 6’ cluster core h CLASH at the Frontier Fields

  12. Frontier Fields Swap cameras 6 months later / earlier70 orbits ACS + 70 orbits WFC3/IR* on every field * 10 times deeper than any previous lensed field, including CLASH ACS WFC3/IR “blank” field 6’ cluster core h CLASH at the Frontier Fields

  13. 140 orbitsper field (cluster / “blank”) 70 orbitsACS 10x deeper thandeepest clusterIR observations to date (7 orbits) 70 orbitsWFC3/IR Brian Siana’sGO program CLASH at the Frontier Fields

  14. FF HST Cycle 21 programs http://blogs.stsci.edu/hstff/ CLASH at the Frontier Fields

  15. FF observations table to be updated… http://blogs.stsci.edu/hstff/ CLASH at the Frontier Fields

  16. Spitzer observations (50 hours / channel) Frontier Fields schedule WFC3/IR observations of A2744 begin in one month (late October) CLASH at the Frontier Fields

  17. http://bit.ly/168Veql -- Steve Rodney CLASH at the Frontier Fields

  18. Lens models for the community CLASH at the Frontier Fields

  19. CLASH at the Frontier Fields

  20. Frontier Fields submitted lens models CATS Abell 2744 magnification maps Sharon Zitrin LTM Zitrin NFW Merten (wide field) Bradac Williams CLASH at the Frontier Fields

  21. Frontier Fields submitted lens models CATS Abell 2744 magnification maps Sharon Zitrin LTM Zitrin NFW Merten (wide field) Bradac Williams CLASH at the Frontier Fields

  22. True(Meneghetti) Quantifying magnification uncertainties Log (result / true) MAX 1 xy Lenstool(Carrasco) Lenstool(Carrasco) Meneghetti – Skylens simulated image CLASH at the Frontier Fields

  23. FF lens modelers will also model 3 simulated clusters CLASH at the Frontier Fields

  24. The Frontier Fields will also enable high-resolution cluster mass maps Mass resolution ~ average SL image separation Highest resolution (~25 kpc) cluster mass map to date Abell 1689 – Coe et al. (2010) CLASH at the Frontier Fields

  25. The Frontier Fields will also enable high-resolution cluster mass maps • subhalo mass function • quantify degree to which light traces mass • mass-to-light ratios; evidence for tidal stripping • inform “abundance matching” models • strong lensing tomography? (multiple lens planes) Highest resolution (~25 kpc) cluster mass map to date Abell 1689 – Coe et al. (2010) CLASH at the Frontier Fields

  26. The Next Frontiers of Gravitational Lensingfocus on cluster strong lensing • High-redshift galaxies • magnification uncertainties • Calibrating mass observables + 3-D analysis • lensing, X-ray, SZ, dynamics • High-resolution dark matter maps • Cosmological constraints Dan Coe - STScI Cluster Lensing Workshop

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