The Galactic bulge exploration - IV. RR Lyrae stars as tracers of the Galactic bar: 3D and 5D analysis and extinction variation

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Volume 695 (March 2025)

A&A, 695 (2025) A211

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Table 1

Overview of the surveys used here.

Surveys	Mean mag.	Pulsation prop.	Additional info.	Num. stars
OGLE	m_I	P, M₀, Amp_I	[Fe/H]_phot	68 127
OGLE	m_V	Amp_V	[Fe/H]_phot	28 665
Gaia	$m_{G_{BP}}$ ${m_{{G_{{\rm{BP}}}}}}$	Amp_G	$μ_{α}, μ_{δ}^{}, flags$ ${\mu _\alpha },\mu _\delta ^{\rm{, flags}}$	52 432
VVV	$m_{J}, m_{K_{s}}$ ${{\rm{m}}_J},{m_{{K_{\rm{s}}}}}$	${Amp}_{K_{s}}$ ${\rm{Am}}{{\rm{p}}_{{K_{\rm{s}}}}}$	[Fe/H]_phot	43 284
VHS	$m_{J}, m_{K_{s}}$ ${{\rm{m}}_J},{m_{{K_{\rm{s}}}}}$	–	–	10 153

Notes. The photometric surveys referenced in this study and their key parameters are listed. We note that Gaia $m_{G_{BP}}$ ${m_{{G_{{\rm{BP}}}}}}$ comes from RR Lyrae and Gaia astrometric catalog ⊗ with OGLE-IV. RUWE and ipd_frac_multi_peak. For stars without [Fe/H]_phot from OGLE-IV data we used module developed in Dékány & Grebel (2022) to estimate [Fe/H]_phot from K_s light curves.

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