2008ApJ...679...71F

Query : 2008ApJ...679...71F

2008ApJ...679...71F - Astrophys. J., 679, 71-75 (2008/May-3)

The Cepheid period-luminosity relation at mid-infrared wavelengths. I. First-epoch LMC data.

FREEDMAN W.L., MADORE B.F., RIGBY J., PERSSON S.E. and STURCH L.

Abstract (from CDS):

We present the first mid-infrared period-luminosity (PL) relations for Large Magellanic Cloud (LMC) Cepheids. Single-epoch observations of 70 Cepheids were extracted from Spitzer IRAC observations at 3.6, 4.5, 5.8 and 8.0 µm, serendipitously obtained during the SAGE (Surveying the Agents of a Galaxy's Evolution) imaging survey of the LMC. All four mid-infrared PL relations have nearly identical slopes over the period range 6-88 days, with a small scatter of only ±0.16 mag independent of period for all four of these wavelengths. We emphasize that differential reddening is not contributing significantly to the observed scatter, given the nearly 2 orders of magnitude reduced sensitivity of the mid-IR to extinction compared to the optical. Future observations, filling in the light curves for these Cepheids, should noticeably reduce the residual scatter. These attributes alone suggest that mid-infrared PL relations will provide a practical means of significantly improving the accuracy of Cepheid distances to nearby galaxies.

Abstract Copyright: ∼

Journal keyword(s): Stars: Variables: Cepheids - Cosmology: Distance Scale - Infrared: Stars - Galaxies: Magellanic Clouds

VizieR on-line data: <Available at CDS (J/ApJ/679/71): table1.dat>

Simbad objects: 71

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Number of rows : 71
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 SV* HV 8036 cC* 04 45 37.2126990120 -70 15 03.918112020       13.53 12.633 ~ 40 0
2 SV* HV 12724 cC* 04 46 01.0792664928 -69 38 55.760603856   15.72 14.761 14.21 13.750 ~ 28 0
3 SV* HV 12471 cC* 04 50 52.4378107416 -69 18 55.866352860   15.58 14.756 13.95 13.656 ~ 38 0
4 SV* HV 873 cC* 04 54 23.7765040872 -70 54 05.735484684   12.97 12.44 12.58 12.178 F8I 60 0
5 SV* HV 872 cC* 04 55 06.3066765312 -67 28 32.933094060   14.65 13.69 13.15 12.711 ~ 28 0
6 SV* HV 875 cC* 04 56 27.5168262672 -69 22 46.772251788   13.58 13.131 12.58 12.208 ~ 43 0
7 SV* HV 877 cC* 04 57 01.7944309968 -67 59 42.589297284     13.363   12.232 ~ 59 0
8 SV* HV 876 cC* 04 57 12.3631684656 -67 22 57.291144672   14.29 13.666 13.32 12.711 ~ 36 0
9 V* V Dor cC* 04 57 45.0503240496 -65 42 30.135424788   13.59 12.95 12.56 12.27 ~ 22 0
10 SV* HV 2244 cC* 04 57 50.8911513240 -67 50 18.879778212   13.995 14.255 13.79 13.490 ~ 28 0
11 SV* HV 878 cC* 04 57 51.0483921048 -69 57 29.683493100     13.623 13.62 12.693 ~ 54 0
12 SV* HV 12505 cC* 04 57 56.7393106608 -68 48 57.612161700   16.99 14.847 14.75 13.808 ~ 30 0
13 SV* HV 879 cC* 04 58 05.5960382376 -69 27 15.480133020   14.72 13.457 13.01 12.299 ~ 68 0
14 HD 268878 cC* 04 58 10.7956592640 -69 56 58.781211396   13.83 13.134 12.96 12.005 K5 83 0
15 SV* HV 882 cC* 04 59 41.1459522048 -69 27 21.932769276     13.470 12.90 12.382 ~ 47 0
16 SV* HV 2270 cC* 05 00 48.3654876648 -69 31 54.641073180   15.50 14.740 14.11 13.675 ~ 37 0
17 SV* HV 2251 cC* 05 00 55.1522005752 -66 38 14.329719960     13.223   12.530 ~ 51 0
18 SV* HV 2260 cC* 05 00 55.8717251064 -68 26 20.815577988   15.67 14.906 14.35 13.933 ~ 51 0
19 SV* HV 2282 cC* 05 01 24.9394462656 -70 04 18.287395644   15.10 14.446 13.95 13.350 ~ 38 0
20 SV* HV 887 cC* 05 02 10.2713664432 -69 32 23.708577804   14.84 14.208 13.62 13.231 ~ 36 0
21 SV* HV 2279 cC* 05 02 57.2621758368 -68 41 43.043846676   15.37 14.758 14.43 14.072 ~ 23 0
22 SV* HV 886 cC* 05 03 08.0762661696 -66 13 51.518897472   13.30 13.470 13.63 12.488 ~ 51 0
23 SV* HV 2291 cC* 05 03 46.1840714736 -68 52 36.292197792   14.99 14.162 13.78 13.013 ~ 37 0
24 SV* HV 889 cC* 05 03 49.5107414688 -68 56 02.585788188     13.770 13.56 12.714 ~ 47 0
25 SV* HV 891 cC* 05 04 15.4957502664 -69 01 36.095442564   14.47 13.967 13.34 13.010 ~ 31 0
26 SV* HV 892 cC* 05 04 21.0829292064 -68 43 42.784679496   15.10 14.262 13.98 13.341 ~ 34 0
27 SV* HV 893 cC* 05 06 00.9029155680 -69 06 17.126605980   15.07 13.884 13.49 12.977 ~ 34 0
28 SV* HV 2338 cC* 05 06 08.8555282080 -71 15 26.118906300   12.83 12.26   11.858 ~ 70 0
29 SV* HV 2294 cC* 05 06 14.8080123792 -66 40 45.907786884   12.66 12.15 12.44 11.830 F7I 91 0
30 HD 269075 cC* 05 06 47.9715275784 -70 02 13.295472684   13.30 12.944 12.77 11.861 M 77 0
31 SV* HV 899 cC* 05 07 07.8256721256 -68 53 19.448617524     13.471 12.83 12.403 ~ 61 0
32 SV* HV 2324 cC* 05 07 21.6931078392 -68 20 18.345986988   15.23 14.464 13.90 13.447 ~ 43 0
33 SV* HV 901 cC* 05 07 42.1400471544 -69 14 48.106043736   15.47 14.455 13.84 13.348 ~ 34 0
34 SV* HV 904 cC* 05 08 18.2386417176 -68 46 47.058274920   14.42 13.564 13.45 12.452 ~ 43 0
35 SV* HV 2339 cC* 05 08 49.5351793512 -68 59 59.038673568   15.06 14.299 13.89 13.406 ~ 33 0
36 SV* HV 2352 cC* 05 09 04.3684805616 -70 21 54.126143748   14.86 14.197 13.74 13.38 ~ 47 0
37 SV* HV 909 cC* 05 09 20.1372980832 -70 27 27.043469748   13.32 12.67 12.11 11.949 ~ 71 0
38 SV* HV 2337 cC* 05 09 36.9600213408 -68 02 43.661029272     15.050   14.291 ~ 31 0
39 SV* HV 5655 cC* 05 11 05.4172344768 -70 30 34.412745888   15.46 14.563 14.06 13.578 ~ 40 0
40 SV* HV 914 cC* 05 12 47.0346290592 -69 06 08.881150860     14.926   14.197 ~ 34 0
41 SV* HV 2369 cC* 05 13 53.6706712704 -67 03 48.446510436 14.7 12.88 12.21   11.648 F5?I? 77 0
42 SV* HV 2405 cC* 05 14 41.5551364872 -70 42 32.084016804   15.88 15.151 14.70 14.355 ~ 36 0
43 SV* HV 2432 cC* 05 18 13.7834721960 -68 19 30.448622316   15.02 14.227 13.96 13.507 ~ 30 0
44 SV* HV 932 cC* 05 19 14.7998129232 -69 36 18.144066456   15.03 14.329 13.85 13.379 ~ 36 0
45 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
46 SV* HV 953 cC* 05 25 08.2680070968 -67 38 38.957619300   12.39 12.280   11.390 ~ 61 0
47 SV* HV 2527 cC* 05 25 39.1090655328 -71 06 39.848203476   15.49 14.615 14.16 13.670 ~ 44 0
48 SV* HV 2549 cC* 05 27 00.5741329320 -71 38 35.749371876   14.34 13.796 13.36 12.890 ~ 48 0
49 SV* HV 2538 cC* 05 27 07.7611991376 -68 29 42.907715952   15.32 14.475 14.05 13.468 ~ 28 0
50 SV* HV 971 cC* 05 28 15.6248442624 -67 03 58.386086316   14.95 14.48 14.08 13.73 ~ 37 0
51 SV* HV 2579 cC* 05 29 16.5753359640 -67 28 21.489182616   14.70 14.04 13.63 13.24 ~ 26 0
52 SV* HV 2580 cC* 05 29 25.6115975616 -66 14 23.293778244   14.82 14.01 13.53 13.14 ~ 50 0
53 SV* HV 12816 cC* 05 29 58.4215444680 -65 54 20.308873644   15.09 14.49 14.13 13.846 ~ 45 0
54 SV* HV 12815 cC* 05 30 02.4652768272 -65 56 01.783841568   14.39   13.48 12.551 ~ 49 0
55 SV* HV 997 cC* 05 33 00.9894859776 -68 11 27.619585692   15.46 14.591 14.20 13.635 ~ 44 0
56 SV* HV 1003 cC* 05 35 36.1551151488 -68 32 03.814599732     13.179   12.388 ~ 55 0
57 SV* HV 1002 cC* 05 35 49.4252268792 -66 42 01.692147564   12.72 12.36   12.160 ~ 49 0
58 SV* HV 1005 cC* 05 36 06.7990326216 -68 49 13.370391588   14.92   14.12 13.222 ~ 45 0
59 SV* HV 2733 cC* 05 37 17.3553993120 -66 45 11.912453064   15.28 14.68 14.30 13.96 ~ 38 0
60 SV* HV 1006 cC* 05 37 22.4442138216 -69 28 59.373425928   15.23 14.398 13.91 13.478 ~ 33 0
61 SV* HV 2749 cC* 05 39 15.1558932816 -69 19 39.184985460     14.580   13.335 ~ 37 0
62 SV* HV 1013 cC* 05 39 53.6437371816 -67 50 08.784453804       13.68 12.771 ~ 41 0
63 SV* HV 2793 cC* 05 41 48.5455187616 -68 41 16.103127012     14.089   13.047 M 45 0
64 SV* HV 1019 cC* 05 42 51.0622135080 -70 08 12.240669264     14.361   13.503 ~ 25 0
65 SV* HV 2836 cC* 05 45 09.9518494872 -67 23 09.013994376   15.56 14.63 14.07 13.55 ~ 39 0
66 SV* HV 1023 cC* 05 46 36.1848254832 -68 11 03.439255668   14.66   13.52 12.775 ~ 51 0
67 SV* HV 2854 cC* 05 47 39.2864159856 -66 58 02.951428764   15.42 14.65 14.23 13.87 ~ 34 0
68 SV* HV 12656 cC* 05 48 06.9220844304 -71 30 21.405996504   14.69 14.153 13.68 13.333 ~ 25 0
69 SV* HV 13048 cC* 05 50 50.5491605568 -67 08 30.213793752   15.314 14.746 15.079 14.270 ~ 18 0
70 SV* HV 6065 cC* 05 50 57.0636336528 -69 40 30.961225416   15.93 15.188 14.78 14.405 ~ 27 0
71 SV* HV 12700 cC* 05 57 31.5186721872 -67 37 29.437481028   15.68 14.86 14.49 14.11 ~ 39 0

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