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An Application of Multi-band Forced Photometry to One Square Degree of SERVS: Accurate Photometric Redshifts and Implications for Future Science

  • Authors: Kristina Nyland, Mark Lacy, Anna Sajina, Janine Pforr, Duncan Farrah, Gillian Wilson, Jason Surace, Boris Häußler, Mattia Vaccari, and Matt Jarvis

2017 The Astrophysical Journal Supplement Series 230 9.

  • Provider: AAS Journals

Caption: Figure 4.

Example of our forced-photometry procedure for a source with no blending issues that is much fainter than the example shown in Figure 3. The cutout dimensions are 10″ × 10″ and the source was modeled using a point-source model. The left column shows the original image, the center column shows the source model convolved with the PSF of each band, and the right column shows the χ2 image and ﹩{\chi }_{\mathrm{red}}^{2}﹩ value after fitting with The Tractor. The colorbar units are in image counts for VIDEO and CFHTLS-D1 and MJy sr−1 for SERVS.

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