The Canada–France Imaging Survey: first results from the u-band component

From National Research Council Canada

DOI	Resolve DOI: https://doi.org/10.3847/1538-4357/aa855c
Author	Search for: Ibata, Rodrigo A.; Search for: Mcconnachie, Alan¹; Search for: Cuillandre, Jean-Charles; Search for: Fantin, Nicholas¹; Search for: Haywood, Misha; Search for: Martin, Nicolas F.; Search for: Bergeron, Pierre; Search for: Beckmann, Volker; Search for: Bernard, Edouard; Search for: Bonifacio, Piercarlo; Search for: Caffau, Elisabetta; Search for: Carlberg, Raymond; Search for: Côté, Patrick¹; Search for: Cabanac, Rémi; Search for: Chapman, Scott; Search for: Duc, Pierre-Alain; Search for: Durret, Florence; Search for: Famaey, Benoît; Search for: Fabbro, Sébastien¹; Search for: Gwyn, Stephen¹; Search for: Hammer, Francois; Search for: Hill, Vanessa; Search for: Hudson, Michael J.; Search for: Lançon, Ariane; Search for: Lewis, Geraint; Search for: Malhan, Khyati; Search for: Matteo, Paola Di; Search for: Mccracken, Henry; Search for: Mei, Simona; Search for: Mellier, Yannick; Search for: Navarro, Julio; Search for: Pires, Sandrine; Search for: Pritchet, Chris; Search for: Reylé, Celine; Search for: Richer, Harvey; Search for: Robin, Annie C.; Search for: Jannsen, Rubén Sánchez; Search for: Sawicki, Marcin; Search for: Scott, Douglas; Search for: Scottez, Vivien; Search for: Spekkens, Kristine; Search for: Starkenburg, Else; Search for: Thomas, Guillaume; Search for: Venn, Kim
Affiliation	National Research Council of Canada. Herzberg Astronomy and Astrophysics
Format	Text, Article
Subject	galaxies: formation; Galaxy: halo; Galaxy: stellar content; Galaxy: structure; surveys – white dwarfs
Abstract	The Canada–France Imaging Survey (CFIS) will map the northern high Galactic latitude sky in the u-band ("CFIS-u," 10,000 deg^2) and in the r-band ("CFIS-r," 5000 deg^2), enabling a host of stand-alone science investigations, and providing some of the ground-based data necessary for photometric redshift determination for the Euclid mission. In this first contribution, we present the u-band component of the survey, describe the observational strategy, and discuss some first highlight results, based on approximately one-third of the final area. We show that the Galactic anticenter structure is distributed continuously along the line of sight, out to beyond 20 kpc, and possesses a metallicity distribution that is essentially identical to that of the outer disk sampled by APOGEE. This suggests that it is probably a buckled disk of old metal-rich stars, rather than a stream or a flare. We also discuss the future potential for CFIS-u in discovering star-forming dwarf galaxies around the Local Group, the characterization of the white dwarf and blue straggler population of the Milky Way, as well as its sensitivity to low surface brightness structures in external galaxies.
Publication date	2017-10-20
Publisher	The American Astronomical Society
In	The Astrophysical Journal 848, no. 2: 128–.
Language	English
Peer reviewed	Yes
NPARC number	23003351
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Record identifier	6544641b-cae4-4005-8e96-fa2f9a0724de
Record created	2018-05-22
Record modified	2020-03-16

Date modified:: 2025-11-17