The Milky Way Cepheid Leavitt law based on Gaia DR2 parallaxes of companion stars and host open cluster populations

Home

All issues

Volume 643 (November 2020)

A&A, 643 (2020) A115

Full HTML

Open Access

Table 7.

Coefficients of the PL relation obtained with GDR2 parallaxes of companions and open clusters (left) and with direct parallaxes of Cepheids (right), for different parallax zero-point offsets.

Band	a	b	ρ		σ	a	b	ρ		σ	ZP (mas)

	Parallaxes of companions and open clusters					Parallaxes of Cepheids
V	−2.486_±0.246	−3.782_±0.051	0.15	0.27	0.18	−2.093_±0.236	−3.888_±0.050	0.09	0.58	0.23	−0.031
J	−3.079_±0.187	−4.964_±0.032	0.21	0.38	0.16	−2.680_±0.154	−5.040_±0.033	0.03	0.97	0.21	−0.031
H	−3.223_±0.185	−5.263_±0.032	0.21	0.34	0.16	−2.799_±0.151	−5.331_±0.033	0.02	0.91	0.21	−0.031
K_S	−3.268_±0.165	−5.363_±0.026	0.25	0.38	0.14	−2.856_±0.127	−5.419_±0.028	0.01	1.18	0.22	−0.031
W_H	−3.340_±0.180	−5.476_±0.030	0.23	0.41	0.16	−2.911_±0.141	−5.534_±0.031	0.01	0.93	0.20	−0.031

V	−2.481_±0.244	−3.731_±0.050	0.15	0.29	0.18	−2.111_±0.236	−3.829_±0.050	0.09	0.53	0.21	−0.046
J	−3.068_±0.184	−4.918_±0.032	0.21	0.43	0.16	−2.692_±0.153	−4.987_±0.033	0.03	0.90	0.19	−0.046
H	−3.215_±0.185	−5.217_±0.031	0.22	0.37	0.16	−2.811_±0.151	−5.278_±0.033	0.03	0.82	0.19	−0.046
K_S	−3.257_±0.163	−5.323_±0.026	0.25	0.44	0.14	−2.865_±0.126	−5.370_±0.028	0.01	1.09	0.19	−0.046
W_H	−3.332_±0.177	−5.432_±0.029	0.23	0.47	0.17	−2.923_±0.141	−5.483_±0.031	0.01	0.85	0.18	−0.046

V	−2.475_±0.243	−3.680_±0.050	0.15	0.32	0.19	−2.130_±0.235	−3.771_±0.049	0.10	0.50	0.21	−0.061
J	−3.060_±0.179	−4.874_±0.032	0.20	0.52	0.17	−2.703_±0.153	−4.936_±0.032	0.03	0.86	0.18	−0.061
H	−3.207_±0.183	−5.172_±0.031	0.21	0.44	0.17	−2.824_±0.151	−5.226_±0.032	0.03	0.76	0.17	−0.061
K_S	−3.248_±0.162	−5.283_±0.025	0.24	0.55	0.16	−2.873_±0.125	−5.321_±0.027	0.01	1.04	0.18	−0.061
W_H	−3.322_±0.175	−5.389_±0.029	0.22	0.58	0.18	−2.934_±0.140	−5.433_±0.030	0.02	0.81	0.17	−0.061

Notes. The equations are of the form M = a (log P − 0.84)+b, and ρ is the correlation between a and b.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.