The VMC survey - L. Type II Cepheids in the Magellanic Clouds: Period–luminosity relations in the near-infrared bands

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Volume 685 (May 2024)

A&A, 685 (2024) A41

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Table 9.

Coefficients of the PL/PLC/PW relations for T2Cs in the LMC calibrated with D_0, LMC = (18.477 ± 0.027) mag according to Pietrzyński et al. (2019).

Relation	Group	α	σ_α	β	σ_β	γ	σ_γ	RMS
		(mag)	(mag)	(mag dex⁻¹)	(mag dex⁻¹)			(mag)
PLJ	BLHer	−0.820	0.075	−2.250	0.140			0.17
PLJ	WVir	−0.558	0.038	−2.400	0.068			0.10
PLJ	BLH & WVir	−0.813	0.032	−2.156	0.024			0.12
PLK_s	BLHer	−1.033	0.072	−2.560	0.140			0.16
PLK_s	WVir	−0.969	0.036	−2.439	0.053			0.08
PLK_s	BLH & WVir	−1.067	0.031	−2.348	0.019			0.10
PWG	BLH & WVir	−1.032	0.031	−2.436	0.022			0.14
PWVI	BLH & WVir	−1.140	0.031	−2.491	0.022			0.12
PWVK_s	BLH & WVir	−1.195	0.031	−2.475	0.017			0.09
PWYK_s	BLH & WVir	−1.251	0.031	−2.516	0.017			0.09
PWJK_s	BLH & WVir	−1.226	0.031	−2.501	0.016			0.08
PLCG	BLHer	−1.103	0.058	−2.520	0.110	2.007	0.085	0.20
PLCG	WVir	−1.149	0.040	−2.572	0.062	2.160	0.120	0.10
PLCG	BLH & WVir	−1.143	0.031	−2.501	0.033	2.070	0.062	0.15
PLCVI	BLHer	−0.949	0.061	−2.460	0.110	2.150	0.120	0.12
PLCVI	WVir	−1.629	0.049	−2.667	0.066	3.350	0.160	0.09
PLCVI	BLH & WVir	−1.334	0.033	−2.604	0.036	2.912	0.092	0.10
PLCVK_s	BLHer	−1.161	0.052	−2.611	0.093	0.136	0.041	0.10
PLCVK_s	WVir	−1.133	0.036	−2.560	0.050	0.158	0.048	0.07
PLCVK_s	BLH & WVir	−1.182	0.031	−2.447	0.029	0.118	0.030	0.09
PLCYK_s	BLHer	−1.165	0.057	−2.620	0.110	0.345	0.080	0.10
PLCYK_s	WVir	−1.013	0.037	−2.497	0.051	0.150	0.092	0.08
PLCYK_s	BLH & WVir	−1.152	0.031	−2.421	0.026	0.223	0.059	0.09

Notes. The relations are: M_λ, 0 = α + β log P for PL(λ); $W_{λ_{1}, λ_{2}}^{0} = α + β$ $W_{\lambda_1,\lambda_2}^0 = \alpha + \beta$ log P for the PW(λ₁, λ₂); $M_{λ_{1}}^{0} = α + β$ $M_{\lambda_1}^0 = \alpha + \beta$ log P + γ(m_λ₁ − m_λ₂)₀ for the PLC(λ₁, λ₂).

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