1998AJ....115.1921A

Query : 1998AJ....115.1921A

1998AJ....115.1921A - Astron. J., 115, 1921-1933 (1998/May-0)

The MACHO project LMC variable star inventory. VII. The discovery of RV Tauri stars and new type II cepheids in the Large Magellanic Cloud.

ALCOCK C., ALLSMAN R.A., ALVES D.R., AXELROD T.S., BECKER A., BENNETT D.P., COOK K.H., FREEMAN K.C., GRIEST K., LAWSON W.A., LEHNER M.J., MARSHALL S.L., MINNITI D., PETERSON B.A., POLLARD K.R., PRATT M.R., QUINN P.J., RODGERS A.W., SUTHERLAND W., TOMANEY A. and WELCH D.L.

Abstract (from CDS):

We report the discovery of RV Tauri stars in the Large Magellanic Cloud (LMC). In light- and color-curve behavior, the RV Tauri stars appear to be a direct extension of the type II Cepheids to longer periods. A single period-luminosity-color relationship is seen to describe both the type II Cepheids and the RV Tauri stars in the LMC. We derive the relation V0 = 17.89(±0.20)-2.95(±0.12) log P + 5.49(±0.35)<(V - R)0>, which is valid for type II Cepheids and RV Tauri stars in the period range 0.9 < log P < 1.75. Assuming a distance modulus to the LMC of 18.5, the relation in terms of the absolute luminosities becomes MV = -0.61(±0.20)-2.95(±0.12) log P + 5.49(±0.35)<(V - R)0>.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Magellanic Clouds - Stars: Population II - Stars: Variables: Other

Nomenclature: Table 1: MACHO* JHHMMSS.s+DDMMSS = [AAA98b] JHHMMSS.s+DDMMSS, N=33.

CDS comments: Table 1: The format 'FFF.NNNNN.NNNN' stands for 'MACHO FFF.NNNNN.NNNN' in SIMBAD.

Simbad objects: 37

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Number of rows : 37
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 OGLE LMC-T2CEP-15 RV* 04 55 43.2642672360 -67 51 09.787079088 17.31 16.23 14.93 14.28 14.061 G2-8(R)Ibe: 26 0
2 OGLE LMC-T2CEP-17 WV* 04 56 16.0217382408 -68 16 16.282707780     16.968   15.986 ~ 10 0
3 OGLE LMC-T2CEP-27 WV* 05 02 53.2069693416 -69 36 57.452831244     16.692   15.722 ~ 9 0
4 SV* HV 2281 RV* 05 03 04.9906534080 -68 40 24.669726024 15.655 15.609 15.446 14.80 14.432 F7-9Ibpe 22 0
5 OGLE LMC-SC14 174795 WV* 05 03 59.1744259776 -68 53 23.906156316   17.03 16.468 16.12 15.788 ~ 13 0
6 OGLE LMC-SC14 156721 WV* 05 04 07.7227626720 -69 07 31.519610256     17.06 16.46 16.228 ~ 13 0
7 OGLE LMC-T2CEP-40 WV* 05 05 11.8409501856 -69 45 54.758796660     16.588   15.833 ~ 11 0
8 OGLE LMC-T2CEP-44 WV* 05 06 28.8947527872 -69 43 58.705221504     17.108   16.099 ~ 11 0
9 SV* HV 5598 WV* 05 07 38.9475134352 -68 20 06.009046260 17.881 17.101 16.415 16.040 15.547 ~ 17 0
10 OGLE LMC-T2CEP-57 WV* 05 11 21.1207450320 -68 40 13.170309060     16.707   15.749 ~ 12 0
11 SV* HV 13025 RV* 05 11 33.5025276336 -68 35 53.785951116     16.594   15.511 ~ 15 0
12 SV* DV 96 WV* 05 11 49.3783087872 -70 34 11.208638172     16.606   15.643 ~ 11 0
13 SV* HV 915 RV* 05 14 18.1109835264 -69 12 34.872203808 15.837 14.924 14.552 13.96 13.853 F7-9Ibpe 29 0
14 OGLE LMC-T2CEP-79 WV* 05 16 35.6615148720 -68 21 01.114117128     17.42 16.84 16.287 ~ 14 1
15 SV* HV 2423 RV* 05 16 47.4341880600 -69 44 15.087084972     15.175 14.54 14.341 F3 17 0
16 SV* HV 5756 WV* 05 19 26.4491318520 -69 51 51.097846788   16.347 15.861   15.130 ~ 21 0
17 OGLE LMC-T2CEP-96 WV* 05 20 10.4299124856 -68 48 39.226581756     16.832   15.918 ~ 11 0
18 OGLE LMC-SC6 118148 WV* 05 20 20.5951682040 -69 12 20.970967464   17.846 17.064   16.177 ~ 14 0
19 SV* HV 5774 WV* 05 21 18.8747037792 -69 11 47.393493108   17.320 16.838   16.035 ~ 14 0
20 OGLE LMC-SC21 132285 WV* 05 21 35.2721625048 -70 13 25.771146168     16.995   16.039 ~ 14 0
21 OGLE LMC-T2CEP-104 RV* 05 21 49.0978457232 -70 04 34.336307172 17.499 16.003 15.972 14.97 14.872 ~ 20 0
22 SV* HV 13064 cC* 05 21 55.3247356968 -67 46 49.667636964     16.308   14.804 ~ 12 0
23 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17435 0
24 OGLE LMC-T2CEP-115 RV* 05 23 43.5396163320 -69 32 06.932838192     16.651 15.97 15.593 ~ 13 0
25 OGLE LMC-T2CEP-118 WV* 05 25 15.0590135232 -68 09 11.744229816     17.037   16.103 ~ 12 0
26 SV* HV 2522 RV* 05 26 27.2388309720 -66 42 58.683936564 15.668 15.529 14.691   14.014 F6Ibp 8 0
27 OGLE LMC-T2CEP-135 RV* 05 29 38.5049487312 -69 15 12.223410552     16.162 15.26 15.194 ~ 14 0
28 SV* HV 2635 RV* 05 31 50.9978859696 -69 11 46.356217296 14.745 14.781 14.299 14.03 13.862 F4-G1Ibpe 22 0
29 OGLE LMC-T2CEP-149 RV* 05 32 54.4532525952 -69 35 13.106643360     14.868   14.151 ~ 13 0
30 OGLE LMC-T2CEP-152 WV* 05 34 37.5808349784 -70 01 08.596232472     17.323   16.453 ~ 13 0
31 OGLE LMC-T2CEP-156 WV* 05 36 01.5367489584 -71 00 11.341900044     16.85 16.31 15.941 ~ 10 0
32 OGLE LMC-T2CEP-157 WV* 05 36 02.5942226256 -69 27 15.993773676     17.050   16.045 ~ 11 0
33 OGLE LMC-T2CEP-162 RV* 05 37 44.9503437530 -69 54 16.469856483     16.200 15.279 15.112 ~ 13 0
34 SV* HV 12631 RV* 05 39 32.8272810866 -71 21 54.287474034 16.371 15.532 15.155 14.443 14.449 C 18 0
35 SV* HV 2764 RV* 05 40 00.4969222728 -69 42 14.653446912 14.745 14.781 14.457 13.380 13.693 F0Ia 17 0
36 OGLE LMC-T2CEP-182 WV* 05 43 46.8938986536 -70 42 36.469269072     17.265   16.312 ~ 11 0
37 V* W Vir WV* 13 26 01.9928807928 -03 22 43.431062880   10.33 9.46 9.29 9.393 F2Ibe 300 0

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