Periodicity from X-ray sources within the inner Galactic disk

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Table 1.

Sources with possible Gaia optical counterparts.

XMM name	Density	G_mag	Plx	Distance	L_x
	arcsec⁻²		mas	kpc	erg s⁻¹
4XMM J173058.9	0.009	20.05	0.59	$3 . 2_{- 1.3}^{+ 2.2}$ $3.2^{+2.2}_{-1.3}$	1.9 × 10³³
4XMM J174033.8	0.009	19.23	0.23	$4 . 3_{- 1.3}^{+ 1.5}$ $4.3^{+1.5}_{-1.3}$	6.4 × 10³³
4XMM J174009.0	0.03	18.79	0.71	$1 . 8_{- 0.5}^{+ 1.2}$ $1.8^{+1.2}_{-0.5}$	2.3 × 10³³
4XMM J174954.6	0.1	18.97	0.61	$1 . 6_{- 2.5}^{+ 2.8}$ $1.6^{+2.8}_{-2.5}$	5.3 × 10³²
4XMM J174816.9	0.01	21.13	0.63	$2 . 9_{- 1.4}^{+ 2.3}$ $2.9^{+2.3}_{-1.4}$	8.6 × 10³²
4XMM J175511.6	0.02	18.64	0.40	$4 . 9_{- 2.4}^{+ 3.2}$ $4.9^{+3.2}_{-2.4}$	8.8 × 10³²
4XMM J175328.4	0.02	8.40	0.55	$1 . 8_{- 0.2}^{+ 0.4}$ $1.8^{+0.4}_{-0.2}$	2.2 × 10³³

Notes. Sources with Gaia counterparts found within the 3σ positional error of XMM-Newton. The density was calculated by drawing a circle with a radius of 1 arcmin at the source position.

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