2004AJ....128.1748S

Query : 2004AJ....128.1748S

2004AJ....128.1748S - Astron. J., 128, 1748-1760 (2004/October-0)

Photometry of type II Cepheids. I. The long-period stars.

SCHMIDT E.G., JOHNSTON D., LANGAN S. and LEE K.M.

Abstract (from CDS):

We present 1256 new photometric observations of 36 Cepheids with periods longer than 8 days. The majority are likely type II Cepheids, but we have included about a dozen classical Cepheids for comparison purposes, a few stars of uncertain type, and one putative RV Tauri star. We discuss the appearance of the light curves, the Fourier parameters, and the light-curve stability in terms of differentiation between type I and type II Cepheids. Although we encounter the same difficulties as previous investigators in using these parameters for this purpose, we are able to identify some stars of particular interest, including several likely type I Cepheids at large distances from the Galactic plane. Six stars with especially large period changes are identified and discussed.

Abstract Copyright: ∼

Journal keyword(s): Stars: Variables: Cepheids - Stars: Population II

VizieR on-line data: <Available at CDS (J/AJ/128/1748): table1.dat table2.dat>

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 - 2026 		#notes
1 V* IX Cas WV* 00 04 50.8165981056 +50 14 05.540024148   12.04 11.36     F7 62 0
2 V* QQ Per WV* 02 54 40.3970679768 +51 49 28.674468732   14.433 13.577 13.556   ~ 37 0
3 V* AD Cam cC* 03 29 25.9697779560 +60 26 47.271788232   14.16       ~ 60 0
4 V* OT Per cC* 04 38 37.9383938232 +47 44 25.007509824   15.71 13.47     ~ 49 0
5 V* AN Aur cC* 04 59 41.5376124792 +40 50 09.726015408   11.35 10.21     F6 117 0
6 V* SZ Mon pA* 06 51 27.8476503456 -01 22 15.965715072   10.996 10.259 9.910 9.109 F8(e) 76 1
7 V* AL Vir WV* 14 11 09.0461976912 -13 18 38.439874440   10.13 9.10     F3/5III 91 0
8 Cl* NGC 5904 SAW V42 RV* 15 18 24.7809796920 +02 02 53.243386584   12.8100 10.9300     F4 49 1
9 V* V845 Her cC* 16 25 16.3008635496 +40 53 48.724486836   9.70 13.38 12.45   ~ 13 0
10 V* V775 Oph cC* 17 32 40.4104045680 +07 42 20.249829936           ~ 16 0
11 V* V478 Oph WV* 17 59 38.9857077192 +00 47 09.019503312           ~ 32 0
12 V* V2338 Oph WV* 18 05 28.9192709904 +07 54 20.938821840   13       ~ 19 0
13 V* BH Oph WV* 18 15 50.5427626872 +12 05 44.083532184   12.29 11.84     F7.2e 31 0
14 V* CC Lyr WV* 18 33 57.4123406832 +31 38 24.187157196   12.98 12.46     hF4mA:CH+1 56 0
15 V* AP Her WV* 18 50 27.7290127008 +15 56 24.669429612 12.09 11.33 10.87     F2Ib/II 69 0
16 V* AL Sct cC* 18 52 11.0921933352 -14 40 31.547820144   14.75     12.602 ~ 14 0
17 V* PZ Aql WV* 18 55 56.0446326720 -02 52 47.035601220   13.13 11.79     F5 30 0
18 V* V801 Aql cC* 18 58 58.2468183696 -06 30 45.661499028         12.082 ~ 14 0
19 V* EV Aql cC* 19 06 46.1545028640 +14 55 46.259364180   12.95 11.63     ~ 60 0
20 V* V916 Aql cC* 19 10 00.4156127256 +12 32 11.608198908   12.22 10.86   8.908 ~ 63 1
21 V* AL Lyr WV* 19 19 29.6172143976 +27 33 44.438357556   12.95 11.98     ~ 26 0
22 V* NN Vul RV* 19 29 53.9882770800 +25 14 57.003096084   15.69 14.18 13.85   ~ 12 0
23 V* ET Vul cC* 19 35 20.1037999728 +26 25 48.871371072   13.84 12.19 11.82   ~ 29 0
24 V* AS Vul cC* 19 47 44.4704348496 +27 55 05.704733136   14.13       ~ 45 0
25 V* IU Cyg RV* 19 50 08.2476953712 +34 09 57.584175552   15.215 14.049 12.874 12.025 ~ 32 0
26 V* EU Cyg cC* 19 51 17.2841825976 +32 40 31.962586044   14.60       ~ 45 0
27 V* PP Aql WV* 19 52 46.5486674448 +12 40 09.002477712   13.00 12.11 11.10   ~ 27 0
28 V* EZ Cyg cC* 19 57 49.0090610088 +30 15 57.295666656   12.45 11.21     G5V 57 0
29 V* TW Cap RV* 20 14 28.4158961112 -13 50 07.884309192   11.660 10.862 10.292   F4Ib 79 0
30 V* KX Cyg cC* 20 24 19.3460912592 +40 33 39.915429300   14.14 11.72 10.71   ~ 54 0
31 V* DR Cep cC* 20 49 05.5864344744 +58 53 57.167884356     13.08     F5p 42 0
32 V* MZ Cyg WV* 21 21 54.7238681664 +37 27 33.101250912   13.16 12.14     G1 45 0
33 V* V609 Cyg cC* 21 26 56.0224273104 +54 29 29.237656272   13.27 10.80   8.703 ~ 64 1
34 V* CP Cep cC* 21 57 52.6912593888 +56 09 50.041033668   12.29 10.58   8.788 F5Ib 126 0
35 V* CH Cas cC* 23 22 28.4389674024 +62 45 25.742896416   12.57 10.79     F3Ibp 85 0
36 V* CN Cep cC* 23 25 34.7917689960 +64 47 25.504138932   14.18       ~ 44 0
37 V* CS Cas WV* 23 50 14.2576216656 +51 23 58.767943344   12.02       ~ 29 0

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