viper: High-precision radial velocities from the optical to the infrared - Reaching 3 m/s in the K band of CRIRES+ with telluric modelling

Open Access

Table 1

Sample of RV standard stars.

Target	Sp.type	$m_{K}^{(a)}$ $\mathrm{m}_{K}^{(a)}$	$N_{HARPS}^{(b)}$ $N_{\text{HARPS}}^{(b)}$	${r m s}_{HARPS}^{(b)}$ $\mathrm{rms}_{\text{HARPS}}^{(b)}$	$N_{C R +}^{(c)}$ $N_{\mathrm{CR}+}^{(c)}$	${rms}_{C R +}^{(c)}$ $\text{rms}_{\mathrm{CR}+}^{(c)}$	${r m s}_{CR +}^{(c)}$ $\mathrm{rms}_{\text{CR}+}^{(c)}$	${r m s}_{CR +}^{(c)}$ $\mathrm{rms}_{\text{CR}+}^{(c)}$	Time span^(c)
					cell/no cell	(v_star, cell)	(v_star, no cell)	(v_atm, cell)
		[mag]		[m/s]		[m/s]	[m/s]	[m/s]
GJ 447	M4.0^(d)	5.65	201	2.76	21/21	4.16	12.56	11.60	Jun. 2021–Jun. 2023
GJ 588	M2.5^(e)	4.76	270	1.74	61/37	3.01	9.89	7.21	Jun. 2021–Aug. 2023
GJ 229A	M1.0^(f)	4.63	201	2.60	29/29	3.99	15.57	16.93	Aug. 2021–Jan. 2024
GJ 784	M0.0^(g)	4.28	40	5.76	76/46	5.01	10.89	7.35	Jun. 2021–Oct. 2023

Notes. ^(a)Cutri et al. (2003) ^(b)Trifonov et al. (2020) ^(c)This work ^(d) Kesseli et al. (2019) ^(e)Walker (1983) ^(f)Kirkpatrick et al. (1991) ^(g)Torres et al. (2006).

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