1998A&A...333L..35A


Query : 1998A&A...333L..35A

1998A&A...333L..35A - Astronomy and Astrophysics, volume 333, L35-38 (1998/5-2)

The possible effects of an unusual resonance in very long period Cepheids.

ANTONELLO E.

Abstract (from CDS):

The shape of the radial velocity and light curves of 24 long-period (30≤P≤134d) Cepheids in the Magellanic Clouds shows a progression with the period. The sequences of the radial velocity and light curves are based only on a small sample of stars; however, evident changes of the shape can be seen in Cepheids with period between 90 and 134d. The Fourier parameter-period diagrams for the radial velocity curves show trends which remind in part those of Cepheids with period near 10d. The plausible interpretation is a resonance, probably P0/P1=2 between the fundamental and the first overtone mode. The possible importance of this phenomenon for the study of stellar structure and evolution in relatively far galaxies is emphasized .

Abstract Copyright:

Journal keyword(s): stars: oscillations - Cepheids - Magellanic Clouds

VizieR on-line data: <Available at CDS (J/A+A/333/L35): table1.dat table2.dat table3.dat tables.ps tables.tex>

Simbad objects: 29

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Number of rows : 29
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 V* BZ Tuc s*y 00 41 43.4481452424 -73 43 23.884459392   13.290 12.160 11.613 10.911 G0Iab 68 0
2 OGLE SMC-CEP-921 s*y 00 46 53.1109589208 -72 42 51.733779624   12.67 12.04   11.421 G0Iab 59 0
3 SV* HV 829 cC* 00 50 28.7968305768 -72 45 09.210864996 12.97 12.26 11.63   11.017 G0Ib 78 0
4 SV* HV 11157 cC* 00 52 56.8080848496 -71 55 03.243982764   13.75 12.916   11.853 ~ 43 0
5 SV* HV 834 cC* 00 53 42.6456610344 -72 17 13.632027000   12.48 11.89   11.268 F2Ib 62 0
6 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1402 2
7 SV* HV 837 cC* 00 55 56.0568870768 -71 59 02.691309588   14.16 13.233   12.297 ~ 61 0
8 SV* HV 11182 cC* 00 57 33.9037888008 -72 04 12.821483568   14.59 13.721   12.663 ~ 35 0
9 IC 1613 GiC 01 04 54.2 +02 08 00   10.42 10.01 9.77   ~ 1167 2
10 SV* HV 2195 cC* 01 14 28.0646245968 -72 39 53.532235548   14.02 13.115   12.144 F5Ib 45 0
11 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 731 1
12 SV* HV 5497 cC* 04 55 40.5527820192 -66 25 43.318661664   13.366 11.930 11.38 10.88 G2Ib 74 0
13 NSV 1789 cC* 04 56 26.7915982608 -64 41 40.258787892   12.93 12.02     ~ 40 0
14 SV* HV 877 cC* 04 57 01.7944309968 -67 59 42.589297284   14.10 13.363   12.232 ~ 50 0
15 SV* HV 879 cC* 04 58 05.5960382376 -69 27 15.480133020   14.72 13.457 13.01 12.299 ~ 56 0
16 HD 268878 cC* 04 58 10.7956592640 -69 56 58.781211396   13.83 13.134 12.96 12.005 K5 71 0
17 SV* HV 883 cC* 05 00 07.5644790720 -68 27 00.064228464 14.033 13.86 11.63 11.35 10.91 F8/G0Ia 74 0
18 SV* HV 2338 cC* 05 06 08.8555282080 -71 15 26.118906300   12.83 12.26   11.858 ~ 60 0
19 SV* HV 2294 cC* 05 06 14.8080123792 -66 40 45.907786884   12.66 12.15 12.44 11.830 F7I 80 0
20 HD 269075 cC* 05 06 47.9715275784 -70 02 13.295472684   13.30 12.944 12.77 11.861 M 65 0
21 SV* HV 899 cC* 05 07 07.8256721256 -68 53 19.448617524   13.50 13.471 12.83 12.403 ~ 53 0
22 SV* HV 904 cC* 05 08 18.2386417176 -68 46 47.058274920   14.42 13.564 13.45 12.452 ~ 34 0
23 SV* HV 909 cC* 05 09 20.1372980832 -70 27 27.043469748   13.32 12.67 12.11 11.949 ~ 62 0
24 SV* HV 2369 cC* 05 13 53.6706712704 -67 03 48.446510436 14.7 12.88 12.21   11.648 F5?I? 64 0
25 SV* HV 2447 cC* 05 19 30.5048741424 -68 41 09.722625720   13.37 10.52 9.44 10.870 G1Ia? 58 0
26 SV* HV 1002 cC* 05 35 49.4252268792 -66 42 01.692147564   12.72 12.36   12.160 ~ 43 0
27 SV* HV 2827 cC* 05 43 47.3076015504 -66 35 08.943397872   13.37 12.02   11.220 M 57 0
28 IC 4182 BiC 13 05 48.7478324064 +37 36 12.965157684   11.86   11.40   ~ 327 1
29 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1496 0

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2022.05.27-20:24:44

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