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Zwicky Transient Facility and Globular Clusters: The Period–Luminosity and Period–Wesenheit Relations for Type II Cepheids

  • Authors: Chow-Choong Ngeow, Anupam Bhardwaj, Jing-Yi Henderson, Matthew J. Graham, Russ R. Laher, Michael S. Medford, Josiah Purdum, Ben Rusholme

Chow-Choong Ngeow et al 2022 The Astronomical Journal 164 .

  • Provider: AAS Journals

Caption: Figure 4.

The updated multiband PL relations, where the best-fit PL relations are shown in solid lines (see Table 3), and the dashed lines represent the ±3σ of the best-fit PL relations (hence, data points outside the ±3σ range are rejected in the fitting). The BVIJHK-band PL relations were updated from Bhardwaj (2022) by using the homogeneous distance from Baumgardt & Vasiliev (2021). The updated gri-band PL relations were derived from combining two samples of TIICs: those with ZTF data as listed in Table 1, and the TIICs from the B22 sample that are not included in Table 1 (after being transformed to the gri bands). See Section 4.2 for more details. Note that the error bars are smaller than the size of the symbols.

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