2008MNRAS.386.2115F

Query : 2008MNRAS.386.2115F

2008MNRAS.386.2115F - Mon. Not. R. Astron. Soc., 386, 2115-2134 (2008/June-1)

The luminosities and distance scales of type II Cepheid and RR Lyrae variables.

FEAST M.W., LANEY C.D., KINMAN T.D., VAN LEEUWEN F. and WHITELOCK P.A.

Abstract (from CDS):

Infrared and optical absolute magnitudes are derived for the type II Cepheids κ Pav and VY Pyx using revised Hipparcos parallaxes and for κ Pav, V553 Cen and SW Tau from pulsational parallaxes. Revised Hipparcos and HST parallaxes for RR Lyrae agree satisfactorily and are combined in deriving absolute magnitudes. Phase-corrected J, H and Ks mags are given for 142 Hipparcos RR Lyraes based on Two-Micron All-Sky Survey observations. Pulsation and trigonometrical parallaxes for classical Cepheids are compared to establish the best value for the projection factor (p) used in pulsational analyses.

The MV of RR Lyrae itself is 0.16±0.12 mag brighter than predicted from an MV-[Fe/H] relation based on RR Lyrae stars in the Large Magellanic Cloud (LMC) at a modulus of 18.39±0.05 as found from classical Cepheids. This is consistent with the prediction of Catelan & Cortés that it is overluminous for its metallicity. The results for the metal- and carbon-rich Galactic disc stars, V553 Cen and SW Tau, each with small internal errors (±0.08 mag) have a mean deviation of only 0.02 mag from the period-luminosity (PL) relation established by Matsunaga et al. for type II Cepheids in globular clusters and with a zero-point based on the same LMC-scale. Comparing directly the luminosities of these two stars with published data on type II Cepheids in the LMC and in the Galactic bulge leads to an LMC modulus of 18.37±0.09 and a distance to the Galactic Centre of R0= 7.64±0.21kpc. The data for VY Pyx agree with these results within the uncertainties set by its parallax. Evidence is presented that κ Pav may have a close companion and possible implications of this are discussed. If the pulsational parallax of this star is incorporated in the analyses, the distance scales just discussed will be increased by ∼0.15±0.15 mag. V553 Cen and SW Tau show that at optical wavelengths PL relations are wider for field stars than for those in globular clusters. This is probably due to a narrower range of masses in the latter case.


Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): stars: distances - Cepheids - Magellanic Clouds - distance scale

VizieR on-line data: <Available at CDS (J/MNRAS/386/2115): table1.dat list.dat tablea1.dat>

Simbad objects: 164

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Number of rows : 164
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* RU Scl RR* 00 02 48.1070566536 -24 56 43.074744252   10.991 10.563 10.24 10.069 F0/2V 106 0
2 V* UU Cet RR* 00 04 05.1245594784 -16 59 51.543635100   10.50 14.18     kA4.5hF4 118 0
3 V* SW And RR* 00 23 43.0896315888 +29 24 03.626531352 9.53 9.34 9.15     A7IIImF0 270 0
4 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
5 V* RX Cet RR* 00 33 38.2801924320 -15 29 14.802914472   11.7 11.85     A7 111 0
6 V* W Tuc RR* 00 58 09.7045404187 -63 23 44.369640880   11.81 11.60     kA2hA5 135 0
7 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
8 V* RU Cet RR* 01 00 40.3033586784 -15 57 27.611709156   12.02 11.90     kA3p 78 0
9 V* RU Psc RR* 01 14 26.0371799376 +24 24 56.367501264   10.34 10.15     kA6hF3 90 0
10 V* XX And RR* 01 17 27.4142665200 +38 57 02.047066920   11.00 10.62     kA1hA9.5 133 0
11 V* VW Scl RR* 01 18 14.9704469616 -39 12 44.842757832   11.14 11.01     ~ 61 0
12 V* AM Tuc RR* 01 18 30.6495170496 -67 55 04.962278568   12.00 11.54     kA5hA8 60 1
13 V* RR Cet RR* 01 32 08.1731409309 +01 20 30.230098757 9.46 9.33 9.15     A9V 237 0
14 V* VX Scl RR* 01 35 23.6616795216 -35 07 42.603497976   12.22 12.01     A2 57 0
15 V* SV Scl RR* 01 44 59.6627557363 -30 03 33.385938833   11.6 11.6     kA2 77 0
16 V* CI And RR* 01 55 08.2937618520 +43 45 56.490749748   12.47 12.07     A8 72 0
17 V* SS For RR* 02 07 51.9781810872 -26 51 57.716828856   10.45 10.20     kF5hF8 119 0
18 V* RV Cet RR* 02 15 14.9042875944 -10 48 00.718115472   11.30 10.85     kA0hF0 107 0
19 V* RZ Cet RR* 02 28 32.4383325288 -08 21 30.111811236   11.74 11.53     kF0.5hF2.3 109 0
20 * alf UMi cC* 02 31 49.09456 +89 15 50.7923 3.00 2.62 2.02 1.53 1.22 F8Ib 716 2
21 V* DX Cet dS* 02 36 02.5784004312 +06 25 56.715184344   7.28 7.00     A5 40 0
22 V* CS Eri RR* 02 37 05.7588329711 -42 57 48.035460221   9.25 9.03     A2/3(IIw) 94 0
23 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
24 V* X Ari RR* 03 08 30.8846437148 +10 26 45.218712967 9.45 9.25 8.97     F0.5 305 0
25 V* SV Eri RR* 03 11 52.1074067400 -11 21 14.067448524   10.34 9.96     A1III 141 0
26 V* SX For RR* 03 30 22.3499972497 -36 03 13.503234127   11.313 10.975     kA1hF5 83 0
27 V* AR Per RR* 04 17 17.1976834800 +47 24 00.635621400 10.72 10.37 9.94     kF2hF7.5 182 0
28 V* SW Tau WV* 04 24 32.9729044632 +04 07 24.080336400   10.23 9.33     A7 120 0
29 V* RX Eri RR* 04 49 44.2915145832 -15 44 28.242958128 9.64 9.43 9.22     kA8.5hF6.5 196 0
30 V* U Pic RR* 04 50 06.6283597344 -50 39 25.235779680   11.70 11.17     kA3hA5 83 0
31 V* BB Eri RR* 04 53 37.5174884400 -19 26 01.062131496   11.98 11.74     kA0hF0.5 91 0
32 V* U Lep RR* 04 56 17.9852660208 -21 13 02.024591448   10.76 10.64     A8/F2(I) 125 0
33 V* RY Col RR* 05 15 07.7818581648 -41 37 41.674798776   10.59 10.45     A7 98 0
34 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
35 * bet Dor cC* 05 33 37.5159729864 -62 29 23.376457680 5.13 4.58 3.76 3.55 3.12 F8/G0Ib 401 0
36 V* RX Col RR* 06 13 14.7399958536 -37 15 00.566702568           ~ 58 0
37 * zet Gem cC* 07 04 06.5312384690 +20 34 13.074474962 5.20 4.58 3.79   3.082 G1Ib 596 0
38 V* TZ Aur RR* 07 11 35.0232525192 +40 46 37.148012292   12.44 11.55     kB9.5hF0 124 0
39 V* AA CMi RR* 07 17 19.1688267648 +01 43 40.045234872   11.61 11.64     kF8hF7 63 0
40 V* HH Pup RR* 07 20 35.5562195569 -46 42 30.091727783   11.52 11.31 11.49   A3II/III 94 0
41 V* RR Gem RR* 07 21 33.5312487888 +30 52 59.459320164   12.34 11.92     kA2hA7.5 217 0
42 V* HK Pup RR* 07 44 46.8028630608 -13 05 56.312626632   11.70 11.41     ~ 58 0
43 V* TW Lyn RR* 07 45 06.3012265872 +43 06 41.577305436   12.52 11.69     kA6hF6 85 0
44 V* SZ Gem RR* 07 53 43.4534934528 +19 16 23.929922856   12.13 12.00 11.89   kF2.5hF6.5 122 0
45 V* UY Cam RR* 07 58 58.8825061632 +72 47 15.402887412   11.74 11.53 11.648 11.466 A3-A6III 83 1
46 V* XX Pup RR* 08 08 28.2325556856 -16 31 59.634295428   11.54 11.30     A0-5 69 0
47 V* DD Hya RR* 08 12 31.8117937656 +02 50 05.008030692           ~ 64 0
48 V* TT Cnc RR* 08 32 55.1813237448 +13 11 28.444029000   11.62 11.10     kA8.5hF7 143 0
49 V* VY Pyx WV* 08 54 29.6304994464 -23 31 18.574555548   7.80 7.24     F3/5III 43 0
50 V* TT Lyn RR* 09 03 07.7864688408 +44 35 08.119623336 9.87 9.75 9.51     kA3.5hF3.5 172 0
51 V* RW Cnc RR* 09 19 06.0345391848 +29 03 55.721782656           kA5.5hF8 115 0
52 V* T Sex RR* 09 53 28.3999961376 +02 03 26.346205512 10.22 10.04 9.82     A1V 172 0
53 V* RR Leo RR* 10 07 43.4605279536 +23 59 30.318828648 10.14 10.01 9.94     kA1.5hA9.5 198 0
54 V* WZ Hya RR* 10 13 24.1278993288 -13 08 17.397051972   10.47 10.27     kA8.5hF6 97 0
55 V* WY Ant RR* 10 16 04.9461830443 -29 43 42.417855880   11.03 10.78     kA2hA6 141 0
56 * L Car * 10 22 58.1465809448 -66 54 05.385596996 4.35 4.86 4.99     B8V 120 0
57 V* AF Vel RR* 10 53 02.4880101696 -49 54 22.748719968   11.00 10.69     kA2hF0 81 0
58 V* W Crt RR* 11 26 29.6452105074 -17 54 51.700992767   12.07 11.70     kF0.5hF6 130 0
59 V* TU UMa RR* 11 29 48.4893885624 +30 04 02.379416844 9.56 9.41 9.26     kA2hA9.5 246 0
60 V* AX Leo RR* 11 33 03.7554394416 +12 09 13.871272428   12.20 12.44     A2 66 0
61 V* SS Leo RR* 11 33 54.4934348315 -00 02 00.038460170   10.52       kA1.5hF1 179 0
62 V* SU Dra RR* 11 37 56.6071282968 +67 19 47.060102316 9.52 9.37 9.27     kA2.5hA9.5 264 0
63 V* BX Leo RR* 11 38 02.0629556568 +16 32 36.195009576   11.69 11.69     A6 50 0
64 V* ST Leo RR* 11 38 32.6789993717 +10 33 41.735158309   11.85 11.50     kA8hF6 141 0
65 V* X Crt RR* 11 48 56.2214628480 -10 26 28.519205856   9.99 11.62     kA7hF6 92 0
66 V* IK Hya RR* 12 04 47.2726101288 -27 40 43.272236172   10.46 10.23     B7IIkA3mA3 70 0
67 V* UU Vir RR* 12 08 35.0724648279 -00 27 24.308752109 10.13 9.99 9.90     kA2hF0 178 1
68 V* AB UMa RR* 12 11 14.5890707328 +47 49 43.794301620   11.42 10.88     kF8.5hF7 71 0
69 V* SW Dra RR* 12 17 46.6283861592 +69 30 38.233790244   10.87 10.55     kF1hF7.5 163 0
70 V* UZ CVn RR* 12 30 27.7043909160 +40 30 32.026533876   12.23 12.11     A5 81 0
71 V* SV Hya RR* 12 30 30.5031966024 -26 02 51.113236488   10.82 10.54     kA2hF5 113 0
72 V* S Com RR* 12 32 45.6251248920 +27 01 45.413618412   11.64 11.74     kA4hF3 129 0
73 V* U Com RR* 12 40 03.1943214144 +27 29 56.132925648   11.92 11.76     kA5hF0 104 1
74 V* AT Vir RR* 12 55 10.5415463136 -05 27 32.320345392   11.63 11.62     hF5.5 115 0
75 V* ST Com RR* 13 17 51.3447221592 +20 46 50.759105268   12.03 11.92     kF0hF5 89 0
76 V* AV Vir RR* 13 20 11.5637828400 +09 11 16.370850120   12.14 11.88     kA5.5hF1.5 95 0
77 V* AM Vir RR* 13 23 33.3252267552 -16 39 57.886772400   11.99 12.18     ~ 72 0
78 V* AU Vir RR* 13 24 48.0042145368 -06 58 45.488841564   11.51 11.12     kA0hA7 75 0
79 V* SX UMa RR* 13 26 13.4592361416 +56 15 25.053152616   11.01 10.77     kA3hF1 91 0
80 V* RV UMa RR* 13 33 18.0838837128 +53 59 14.598026988   10.97 10.9     kA9hF7 182 0
81 V* KN Cen cC* 13 36 36.8950655064 -64 33 29.914949592   11.22 9.86     G8Iab+B6.0V 157 0
82 V* RZ CVn RR* 13 45 03.0162939624 +32 39 16.709766660   11.98 11.60     kA5hF6 109 0
83 V* RV Oct RR* 13 46 31.7442284943 -84 24 06.384454864   11.39 10.94     ~ 105 0
84 V* SS CVn RR* 13 48 15.9422342472 +39 54 03.011444352   12.00 11.80     kA7.5hF6 93 0
85 V* V499 Cen RR* 13 55 14.7680994672 -43 14 24.800295408   11.43 11.15     kA7hF6/7 90 0
86 V* ST CVn RR* 13 57 34.0589220768 +29 51 28.715555700   11.43 11.21     kA5.5hF2.5 74 0
87 V* UY Boo RR* 13 58 46.3367502960 +12 57 06.457864896   11.18 10.81     kA0hA8 137 0
88 V* W CVn RR* 14 06 27.9805168608 +37 49 41.459748312   10.81 11.18     kA9hF7 134 0
89 V* TV Boo RR* 14 16 36.5814789480 +42 21 35.712985824   11.23 10.93     kB9.5hF1 132 0
90 V* ST Vir RR* 14 27 39.0736479909 -00 54 05.800734111     11.97     kA0hA8.5 107 0
91 V* AF Vir RR* 14 28 09.8217426216 +06 32 43.928373408   11.84 11.83     kA0hA7 61 0
92 V* RS Boo RR* 14 33 33.2132344464 +31 45 16.614367848 9.94 9.83 9.73     kF3hF6.5 201 0
93 V* TW Boo RR* 14 45 05.9456393472 +41 01 44.141886624   11.72 11.45     kA4hF0 126 0
94 HD 129981 WV* 14 46 33.6355780248 -32 10 15.265235964   8.92 8.27 9.14   G5I/IIIpCH 110 0
95 V* AE Boo RR* 14 47 35.2651186224 +16 50 43.552745268   10.83 10.57     kA7hF2 71 0
96 V* TY Aps RR* 14 48 50.0092910856 -71 19 41.895022044   12.03 11.65     kA5hF0 74 0
97 V* BT Dra RR* 14 51 44.6425410768 +60 04 09.038718840   11.76 11.49     kA8hF6 73 0
98 V* XZ Aps RR* 14 52 05.4231924775 -79 40 46.572766688           ~ 72 0
99 V* AP Ser RR* 15 14 00.9213312312 +09 58 51.853528776   11.41 11.27 11.21   kA2.5hF2 83 0
100 V* TV CrB RR* 15 22 21.4407740616 +26 52 37.666440768   12.34 12.14     kA1hA8/9 63 0
101 V* FW Lup RR* 15 22 25.3816355136 -40 55 36.230908944   9.54 9.05     F5IV 74 0
102 V* ST Boo RR* 15 30 39.2299139328 +35 47 04.311095676   11.22 11.13     kA0.5hF6 122 0
103 V* VY Ser RR* 15 31 01.9269312402 +01 41 01.762136979 10.07 9.97 9.73     A5/7Ib/II 195 0
104 V* CG Lib RR* 15 35 16.8029602272 -24 20 12.496214760   11.79 11.51     kA2hA5 49 0
105 V* VY Lib RR* 15 51 16.9893819264 -15 45 03.344507676   11.95 12.10     kA9.5hF6 74 0
106 V* AN Ser RR* 15 53 31.0531421656 +12 57 40.112740009   11.32 10.93     kA7hA8.5 143 0
107 V* AT Ser RR* 15 55 40.3715381538 +07 59 19.597394432   11.68 11.24     kA4hF7 103 0
108 V* AR Her RR* 16 00 32.2322114376 +46 55 25.754534400   11.74 11.40     kA7hF3 144 0
109 V* RV CrB RR* 16 19 25.8515922816 +29 42 47.638302732   11.61 11.53     kA1.5hA8.5 103 0
110 V* V445 Oph RR* 16 24 41.2156082791 -06 32 29.928559328   11.59 11.30     kF7.5hF6 136 0
111 V* VX Her RR* 16 30 40.8027020619 +18 22 00.573057888   10.74 11.31     kA6.5hF2.5 172 0
112 V* UV Oct RR* 16 32 25.5361202856 -83 54 10.495880892   9.80 9.44     A8/F0Ia/ab(w) 133 0
113 V* RW Dra RR* 16 35 31.6036225488 +57 50 23.167269564   11.87 11.48     kA7hF6.5 164 0
114 V* RW TrA RR* 17 00 46.6887966960 -66 39 49.950083772   11.96 11.95     kF0hF5 71 0
115 V* VZ Her RR* 17 13 04.0031560512 +35 58 43.026353256   12.27 11.89 11.79   kA0.5hA9.5/kF1hF7 133 0
116 NGC 6388 GlC 17 36 17.461 -44 44 08.34           ~ 988 1
117 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
118 V* X Sgr cC* 17 47 33.6239490288 -27 49 50.835778896 5.84 5.34 4.54 6.03 3.661 F7II 354 0
119 NGC 6441 GlC 17 50 13.06 -37 03 05.2           ~ 940 0
120 V* TW Her RR* 17 54 31.2003338184 +30 24 37.680536844   11.54 11.26     kA7.5hF2 158 1
121 V* WY Pav RR* 17 56 12.3623256744 -57 09 43.423375320   12.54 13.07     ~ 46 0
122 V* S Ara RR* 17 59 10.7331786216 -49 26 00.455959896   11.01 10.73     kA3hA7 119 0
123 V* MS Ara RR* 18 03 04.2887091600 -52 43 20.583643332   12.42 12.23     ~ 50 0
124 V* V675 Sgr RR* 18 13 35.4093306456 -34 19 01.850653560   10.56 10.18     F0 88 0
125 V* BC Dra RR* 18 14 19.0680333720 +76 41 08.380602780   11.78 11.67     F5 57 0
126 V* V455 Oph RR* 18 15 18.5275718352 +12 21 08.486845992           kA2hA7 64 0
127 V* IO Lyr RR* 18 22 37.9952652456 +32 57 32.603507784   11.90 13.96     kF1hF6 86 0
128 V* CN Lyr RR* 18 41 15.9455082744 +28 43 21.181205100   11.93 11.38     F0 102 0
129 V* V413 CrA RR* 18 47 57.6196241592 -37 44 22.531389180   11.00 10.6     kA7hF1 75 0
130 * kap Pav WV* 18 56 57.0289935240 -67 14 00.581211276   5.08 4.40     G5Iab/b 137 0
131 V* FF Aql cC* 18 58 14.7483041520 +17 21 39.297557628 6.61 6.18 5.38     F6Ib 380 0
132 V* MT Tel RR* 19 02 12.2792561239 -46 39 12.083789084   9.14 8.94     A5II-IIIkA0mA0 86 0
133 V* XZ Dra RR* 19 09 42.6071961192 +64 51 32.137892820   10.40 10.12     kA3.5hA8 163 0
134 V* BK Dra RR* 19 18 20.6701513824 +66 24 47.965359924   11.44 10.99     kA0hF0.5 89 0
135 V* RR Lyr RR* 19 25 27.9129605304 +42 47 03.693258204   7.36   7.6   kA3hF0 951 0
136 V* BN Vul RR* 19 27 56.0611603896 +24 20 50.470062468   11.62 11.13     kA8hF4 116 0
137 V* V440 Sgr RR* 19 32 20.7825615584 -23 51 12.754574645   10.6 10.6     F0 125 0
138 V* XZ Cyg RR* 19 32 29.3050827744 +56 23 17.494181700   9.94 9.68     kA1.5hA8 268 0
139 V* BN Pav RR* 19 38 03.3819133536 -60 36 39.589772436           ~ 45 0
140 V* BP Pav RR* 19 58 00.1364749488 -65 44 09.970660788           ~ 46 0
141 V* V341 Aql RR* 20 32 31.5585950760 +00 35 07.048699728   11.0 10.89 10.8   kA1.5hA5.5 129 0
142 V* DX Del RR* 20 47 28.3555888679 +12 27 50.682410702 9.97 9.79 9.52     A7IIImF0 194 0
143 V* UY Cyg RR* 20 56 28.3030123896 +30 25 40.327229640   11.37 11.1     G 104 0
144 V* RV Cap RR* 21 01 28.8700813584 -15 13 46.090360344   11.11 10.97     kA1.5hA6.5 111 0
145 V* V Ind RR* 21 11 29.9019440989 -45 04 28.391364755 10.67 10.714 10.246     F0V 121 0
146 V* SW Aqr RR* 21 15 17.8507300688 +00 04 34.870467055   11.56 11.51     kA0hA6 121 0
147 V* Z Mic RR* 21 16 22.7047906743 -30 17 03.065542503   11.58 11.37     kF3hF8 83 0
148 V* YZ Cap RR* 21 19 32.4130551766 -15 07 01.141410260   11.48 11.09     F5 108 0
149 V* SX Aqr RR* 21 36 08.4465243384 +03 13 50.020097880   12.19 11.83     kA7hF6 96 0
150 V* RY Oct RR* 21 36 09.3510357528 -77 18 13.536240948   12.46 12.14     ~ 44 0
151 V* CG Peg RR* 21 41 16.7876640384 +24 46 24.472074324   11.43 11.13     kF1hF4 97 0
152 V* AV Peg RR* 21 52 02.7945264655 +22 34 29.376851146 10.26 10.07 9.87     kF5.5hF6.5 185 0
153 V* SS Oct RR* 21 53 35.3533002696 -82 46 43.756880124           ~ 56 0
154 V* BV Aqr RR* 22 02 53.9976005136 -21 31 32.147256936   11.27 11.05     ~ 52 0
155 V* DH Peg RR* 22 15 25.6397704896 +06 49 21.439610112 9.72 9.51 9.25 9.23   kA4hF0.5 196 0
156 * del Cep cC* 22 29 10.2626640314 +58 24 54.697613650 4.71 4.35 3.75   3.219 F5Iab:+B7-8 763 0
157 V* RZ Cep RR* 22 39 13.1768504856 +64 51 30.611384316   9.48 9.49 9.3   kA0.5hF0.5 168 0
158 V* BH Peg RR* 22 53 01.0369924800 +15 47 16.609582176   10.88 10.36     kA9.5hF6.5 133 0
159 V* DN Aqr RR* 23 19 17.2012122276 -24 12 58.821938891   11.713 11.318     kA2hF3 92 0
160 V* RV Phe RR* 23 28 31.4504994336 -47 27 13.040734068   12.23 12.16     kA9hF7 108 0
161 V* BR Aqr RR* 23 38 32.8906588488 -09 19 07.469185188   11.38 11.31     kA6hA8 100 0
162 V* VZ Peg RR* 23 42 16.3025130600 +24 54 58.333039632   11.84 11.59     A0 46 0
163 V* AT And RR* 23 42 30.8306505816 +43 00 51.683935644   11.14 10.60     kA9.5hF6.5 96 0
164 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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