Free Access

Table 1

Some relevant parameters of our Cepheids.

Stars P a MJD0b  ⟨ V ⟩ c  ⟨ K ⟩ d θ e π f Type
(days) (mas) (mas)

FF Aql 4.4709 41 575.928 5.37 3.49 0.88 ± 0.05 2.81 ± 0.18 I
AX Cir 5.2733 51 646.100 5.88 3.76 0.70 ± 0.06 3.22 ± 1.22 I
X Sgr 7.0128 51 653.060 4.55 2.56 1.47 ± 0.04 3.00 ± 0.18 I
η Aql 7.1767 36 084.156 3.90 1.98 1.84 ± 0.03 2.78 ± 0.91 I
W Sgr 7.5950 51 652.610 4.67 2.80 1.31 ± 0.03 2.28 ± 0.20 I
Y Oph 17.1242 51 652.820 6.17 2.69 1.44 ± 0.04 2.04 ± 0.08 I
U Car 38.8124 51 639.740 6.29 3.52 0.94 ± 0.06 2.01 ± 0.40 I
SV Vul 45.0121 43 086.390 7.22 3.93 0.80 ± 0.05 0.79 ± 0.74 I

R Sct 146.50 44 871.500 6.70 2.27 2.32 ± 0.82 II
AC Her 75.010 35 097.300 7.90 5.01 0.70 ± 1.09 II
κ Pav 9.0814 46 683.569 4.35 2.79 1.17 ± 0.05 6.00 ± 0.67 II

Notes. P is the pulsation period and MJD0 denotes the reference epoch (MJD0 = JD0 – 2 400 000.5).  ⟨ V ⟩  and  ⟨ K ⟩  are the mean apparent V and K magnitudes, θ the angular diameter and π the trigonometric parallax. Type denotes the classical (type I) or type II Cepheids.

(a)

From Feast et al. (2008) for κ Pav; from Samus et al. (2009) for the others.

(b)

From Samus et al. (2009) for SV Vul, FF Aql, η Aql, R Sct and AC Her; from Feast et al. (2008) for κ Pav; from Berdnikov & Caldwell (2001) for the others.

(c)

From Fernie et al. (1995) for the classical Cepheids; from Samus et al. (2009) for the type II.

(d)

From Welch et al. (1984) for FF Aql and X Sgr; from DENIS for AX Cir and W Sgr; from Barnes et al. (1997) for η Aql; from Laney & Stoble (1992) for Y Oph, U Car and SV Vul; from Taranova et al. (2010) for R Sct and AC Her; from Feast et al. (2008) for κ Pav.

(e)

Limb-darkened angular diameters from Kervella et al. (2004b) for X Sgr, η Aql, W Sgr and Y Oph; from Groenewegen (2007) for FF Aql; predicted diameter from Moskalik & Gorynya (2005) for AX Cir; from Feast et al. (2008) for κ Pav; from Groenewegen (2008) for the others.

(f)

From Benedict et al. (2007) for FF Aql, X Sgr and W Sgr; from Hoffleit & Jaschek (1991) for U Car; from Mérand et al. (2007) for Y Oph; from Perryman et al. (1997) for the others.

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.