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The BUFFALO HST survey.

Steinhardt, Charles L. and Jauzac, Mathilde and Acebron, Ana and Atek, Hakim and Capak, Peter and Davidzon, Iary and Eckert, Dominique and Harvey, David and Koekemoer, Anton M. and Lagos, Claudia D. P. and Mahler, Guillaume and Montes, Mireia and Niemiec, Anna and Nonino, Mario and Oesch, P. A. and Richard, Johan and Rodney, Steven A. and Schaller, Matthieu and Sharon, Keren and Strolger, Louis-Gregory and Allingham, Joseph and Amara, Adam and Bahé, Yannick and Bœhm, Céline and Bose, Sownak and Bouwens, Rychard J. and Bradley, Larry D. and Brammer, Gabriel and Broadhurst, Tom and Cañas, Rodrigo and Cen, Renyue and Clément, Benjamin and Clowe, Douglas and Coe, Dan and Connor, Thomas and Darvish, Behnam and Diego, Jose M. and Ebeling, Harald and Edge, A. C. and Egami, Eiichi and Ettori, Stefano and Faisst, Andreas L. and Frye, Brenda and Furtak, Lukas J. and Gómez-Guijarro, C. and Remolina González, J. D. and Gonzalez, Anthony and Graur, Or and Gruen, Daniel and Harvey, David and Hensley, Hagan and Hovis-Afflerbach, Beryl and Jablonka, Pascale and Jha, Saurabh W. and Jullo, Eric and Kneib, Jean-Paul and Kokorev, Vasily and Lagattuta, David J. and Limousin, Marceau and von der Linden, Anja and Linzer, Nora B. and Lopez, Adrian and Magdis, Georgios E. and Massey, Richard and Masters, Daniel C. and Maturi, Matteo and McCully, Curtis and McGee, Sean L. and Meneghetti, Massimo and Mobasher, Bahram and Moustakas, Leonidas A. and Murphy, Eric J. and Natarajan, Priyamvada and Neyrinck, Mark and O’Connor, Kyle and Oguri, Masamune and Pagul, Amanda and Rhodes, Jason and Rich, R. Michael and Robertson, Andrew and Sereno, Mauro and Shan, Huanyuan and Smith, Graham P. and Sneppen, Albert and Squires, Gordon K. and Tam, Sut-Ieng and Tchernin, Céline and Toft, Sune and Umetsu, Keiichi and Weaver, John R. and van Weeren, R. J. and Williams, Liliya L. R. and Wilson, Tom J. and Yan, Lin and Zitrin, Adi (2020) 'The BUFFALO HST survey.', Astrophysical journal supplement series., 247 (2). p. 64.


The Beyond Ultra-deep Frontier Fields and Legacy Observations (BUFFALO) is a 101 orbit + 101 parallel Cycle 25 Hubble Space Telescope (HST) Treasury program taking data from 2018 to 2020. BUFFALO will expand existing coverage of the Hubble Frontier Fields (HFF) in Wide Field Camera 3/IR F105W, F125W, and F160W and Advanced Camera for Surveys/WFC F606W and F814W around each of the six HFF clusters and flanking fields. This additional area has not been observed by HST but is already covered by deep multiwavelength data sets, including Spitzer and Chandra. As with the original HFF program, BUFFALO is designed to take advantage of gravitational lensing from massive clusters to simultaneously find high-redshift galaxies that would otherwise lie below HST detection limits and model foreground clusters to study the properties of dark matter and galaxy assembly. The expanded area will provide the first opportunity to study both cosmic variance at high redshift and galaxy assembly in the outskirts of the large HFF clusters. Five additional orbits are reserved for transient followup. BUFFALO data including mosaics, value-added catalogs, and cluster mass distribution models will be released via MAST on a regular basis as the observations and analysis are completed for the six individual clusters.

Item Type:Article
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Publisher statement:© 2020. The American Astronomical Society. All rights reserved.
Date accepted:27 December 2020
Date deposited:23 April 2020
Date of first online publication:03 April 2020
Date first made open access:23 April 2020

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