Dark lens candidates from Gaia Data Release 3 | Astronomy & Astrophysics (A&A)

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Table A.4.

Parameters of all the best-fitting solutions of the 35 analysed events. The description of the columns is at the end of the table. A full, machine-readable version of this table is available at the CDS.

GaiaDR3-	t_0, par	t₀	u₀	t_E	π_EN	π_EE	I_0, G	f_b, G	χ²
ULENS-
003-G0	–	$7297 . 87_{- 0.11}^{+ 0.10}$ $7297.87^{+0.10}_{-0.11}$	$0 . 05_{- 0.01}^{+ 0.01}$ $0.05^{+0.01}_{-0.01}$	$60 . 60_{- 4.66}^{+ 5.49}$ $60.60^{+5.49}_{-4.66}$	–	–	$14 . 16_{- 0.01}^{+ 0.01}$ $14.16^{+0.01}_{-0.01}$	$0 . 18_{- 0.10}^{+ 0.10}$ $0.18^{+0.10}_{-0.10}$	263.76
003-G1+	7297.00	$7298 . 59_{- 0.31}^{+ 0.31}$ $7298.59^{+0.31}_{-0.31}$	$0 . 04_{- 0.01}^{+ 0.01}$ $0.04^{+0.01}_{-0.01}$	$63 . 19_{- 7.14}^{+ 12.48}$ $63.19^{+12.48}_{-7.14}$	$- 0 . 57_{- 0.24}^{+ 0.34}$ $-0.57^{+0.34}_{-0.24}$	$0 . 19_{- 0.06}^{+ 0.07}$ $0.19^{+0.07}_{-0.06}$	$14 . 16_{- 0.01}^{+ 0.01}$ $14.16^{+0.01}_{-0.01}$	$0 . 23_{- 0.15}^{+ 0.17}$ $0.23^{+0.17}_{-0.15}$	255.64
...	...	...	...	...	...	...	...	...	...
363-G-	7797.00	$7798 . 28_{- 1.45}^{+ 1.06}$ $7798.28^{+1.06}_{-1.45}$	$- 0 . 29_{- 0.09}^{+ 0.06}$ $-0.29^{+0.06}_{-0.09}$	$84 . 11_{- 11.95}^{+ 14.66}$ $84.11^{+14.66}_{-11.95}$	$- 0 . 27_{- 0.04}^{+ 0.04}$ $-0.27^{+0.04}_{-0.04}$	$0 . 21_{- 0.04}^{+ 0.05}$ $0.21^{+0.05}_{-0.04}$	$20 . 95_{- 0.02}^{+ 0.02}$ $20.95^{+0.02}_{-0.02}$	$- 0 . 18_{- 0.41}^{+ 0.27}$ $-0.18^{+0.27}_{-0.41}$	6524.48

Notes: The table contains parameters for two types of microlensing point source-point lens models: with and without parallax. The non-parallax PSPL model parameters are: t₀ as the time of the peak of brightness, u₀ corresponding separation of the lens and source at t₀, t_E as Einstein timescale of the event, I_0, G as the brightness in baseline in the G-band, f_b, G as a fraction of the total flux at baseline belonging to the blend in the G-band. The parallax model adds two additional parameters: π_EN and π_EE, which are north and east components of the microlensing parallax vector. Then, t_0, par is a non-fitted parameter, which defines the coordinate system for parallax measurement. Both t₀ and t_0, par are in HJD’ = HJD - 2450000. B is a string of letters denoting which type of Gaia data was used: "G" for events where we used the Gaia DR3 photometry and "GSA" for events where we opted for a Gaia Science Alerts light curve. Finally, C is a sign of the u₀ of the solution ("+" for positive and "-" for negative). If there was more than one solution with the same u₀ sign, we numbered them starting from 1.

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