1998ApJ...507..655F

Query : 1998ApJ...507..655F

1998ApJ...507..655F - Astrophys. J., 507, 655-690 (1998/November-2)

The Hubble space telescope key project on the extragalactic distance scale. XII. The discovery of cepheids and a new distance to NGC 2541.

FERRARESE L., BRESOLIN F., KENNICUTT R.C.Jr, SAHA A., STETSON P.B., FREEDMAN W.L., MOULD J.R., MADORE B.F., SAKAI S., FORD H.C., GIBSON B.K., GRAHAM J.A., HAN M., HOESSEL J.G., HUCHRA J., HUGHES S.M., ILLINGWORTH G.D., PHELPS R., PROSSER C.F. and SILBERMANN N.A.

Abstract (from CDS):

We report the detection of Cepheids and a new distance to the spiral galaxy NGC 2541, based on data obtained with the Wide Field Planetary Camera 2 on board the Hubble Space Telescope (HST). A total of 25 exposures (divided into 13 epochs) were obtained using the F555W filter (transformed to Johnson V), and nine exposures were obtained (divided into five epochs) using the F814W filter (transformed to Cousins I). Photometric reduction of the data is performed using two independent packages, DoPHOT and DAOPHOT II/ALLFRAME, which give very good agreement in the measured magnitudes. A total of 34 bona fide Cepheids, with periods ranging from 12 to over 60 days, are identified based on both sets of photometry. By fitting V and I period-luminosity relations, apparent distance moduli are derived assuming a Large Magellanic Cloud distance modulus and mean color excess of µLMC = 18.50±0.10 mag and E(B-V) = 0.10 mag, respectively. Adopting A(V)/E(V-I) = 2.45, we obtain a true distance modulus to NGC 2541 of µ0 = 30.47 ±0.11 (random)±0.12 (systematic) mag (D = 12.4±0.6 [random] ± 0.7 [systematic] Mpc), and a total (Galactic plus internal) mean color excess E(B-V) = 0.08±0.05 (internal error) mag.

Abstract Copyright: ∼

Journal keyword(s): Stars: Variables: Cepheids - Galaxies: Distances and Redshifts - Galaxies: Individual: NGC Number: NGC 2541

VizieR on-line data: <Available at CDS (J/ApJ/507/655): tables 5 to 20>

Nomenclature: Table 5: [FBK98] CNN (Nos C1-C34). Tables 12, 15: [FBK98] VNN (Nos V1-V23). Tables 17-20: [FBK98] JHHMMSS.ss+DDMMSS.s N=8.

Simbad objects: 105

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Number of rows : 105
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 MCG-03-01-015 G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 782 2
2 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
3 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
5 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1614 2
6 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1316 2
7 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
8 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 818 1
9 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
10 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
11 NGC 2090 GiG 05 47 01.8557074752 -34 15 01.679264784 12.17 11.70 11.20 10.43 11.0 ~ 206 1
12 NGC 2363A HII 07 28 42.8 +69 11 21           ~ 588 3
13 NGC 2366 H2G 07 28 52.4529 +69 12 38.859 12.25 11.86 11.39 11.33   ~ 801 0
14 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1887 1
15 NGC 2500 GiG 08 01 53.1717201720 +50 44 13.602483780 11.98 12.20 11.62 11.34 10.85 ~ 215 2
16 [FBK98] C29 Ce* 08 14 38.07 +49 03 02.8           ~ 2 0
17 [FBK98] C12 Ce* 08 14 38.75 +49 03 13.2           ~ 2 0
18 [FBK98] C13 Ce* 08 14 38.78 +49 02 48.5           ~ 2 0
19 [FBK98] C25 Ce* 08 14 38.96 +49 02 59.2           ~ 2 0
20 [FBK98] C5 Ce* 08 14 39.25 +49 02 50.3           ~ 2 0
21 [FBK98] C27 Ce* 08 14 39.25 +49 02 58.5           ~ 2 0
22 [FBK98] C8 Ce* 08 14 39.27 +49 01 42.8           ~ 2 0
23 [FBK98] C1 Ce* 08 14 39.39 +49 01 30.7           ~ 1 0
24 [FBK98] C15 Ce* 08 14 39.49 +49 03 01.3           ~ 2 0
25 [FBK98] C26 Ce* 08 14 39.76 +49 01 46.5           ~ 2 0
26 [FBK98] C24 Ce* 08 14 39.82 +49 01 43.9           ~ 2 0
27 [FBK98] V1 V* 08 14 39.82 +49 02 26.3           ~ 1 0
28 [FBK98] J081440.02+490103.5 * 08 14 40.02 +49 01 03.5           ~ 1 0
29 NGC 2541 GiG 08 14 40.1160678912 +49 03 42.021679932 12.03 12.26 11.80     ~ 333 1
30 [FBK98] C20 Ce* 08 14 40.81 +49 02 07.2           ~ 2 0
31 [FBK98] C7 Ce* 08 14 40.82 +49 02 15.5           ~ 2 0
32 [FBK98] J081441.01+490120.9 * 08 14 41.01 +49 01 20.9           ~ 1 0
33 [FBK98] V2 Ce* 08 14 41.50 +49 03 15.3           ~ 1 0
34 [FBK98] J081441.89+490152.4 * 08 14 41.89 +49 01 52.4           ~ 1 0
35 [FBK98] C34 Ce* 08 14 41.99 +49 02 39.0           ~ 1 0
36 [FBK98] J081442.03+490150.9 * 08 14 42.03 +49 01 50.9           ~ 1 0
37 [FBK98] C30 Ce* 08 14 42.14 +49 01 58.4           ~ 2 0
38 [FBK98] C33 Ce* 08 14 42.76 +49 02 21.3           ~ 1 0
39 [FBK98] C19 Ce* 08 14 43.11 +49 01 41.7           ~ 2 0
40 [FBK98] C23 Ce* 08 14 43.36 +49 02 28.8           ~ 2 0
41 [FBK98] C16 Ce* 08 14 43.44 +49 03 11.7           ~ 2 0
42 [FBK98] J081443.49+490214.2 * 08 14 43.49 +49 02 14.2           ~ 1 0
43 [FBK98] C28 Ce* 08 14 43.66 +49 03 00.7           ~ 2 0
44 [FBK98] C2 Ce* 08 14 43.67 +49 02 09.5           ~ 2 0
45 [FBK98] C9 Ce* 08 14 43.80 +49 00 40.5           ~ 2 0
46 [FBK98] C3 Ce* 08 14 43.93 +49 02 07.1           ~ 2 0
47 [FBK98] C14 Ce* 08 14 43.94 +49 02 14.2           ~ 2 0
48 [FBK98] C6 Ce* 08 14 44.00 +49 03 07.8           ~ 2 0
49 [FBK98] C11 Ce* 08 14 44.08 +49 02 05.4           ~ 2 0
50 [FBK98] C32 Ce* 08 14 44.61 +49 01 37.7           ~ 1 0
51 [FBK98] C21 Ce* 08 14 44.62 +49 00 35.5           ~ 2 0
52 [FBK98] C22 Ce* 08 14 44.62 +49 01 15.2           ~ 2 0
53 [FBK98] C17 Ce* 08 14 44.67 +49 01 25.2           ~ 2 0
54 [FBK98] C10 Ce* 08 14 44.71 +49 02 59.9           ~ 2 0
55 [FBK98] J081445.46+490140.4 * 08 14 45.46 +49 01 40.4           ~ 1 0
56 [FBK98] J081445.77+490256.0 * 08 14 45.77 +49 02 56.0           ~ 1 0
57 [FBK98] C18 Ce* 08 14 46.58 +49 02 05.7           ~ 2 0
58 [FBK98] J081446.60+490132.3 * 08 14 46.60 +49 01 32.3           ~ 1 0
59 [FBK98] C31 Ce* 08 14 47.27 +49 01 38.1           ~ 1 0
60 [FBK98] C4 Ce* 08 14 50.68 +49 02 14.8           ~ 2 0
61 NGC 2552 EmG 08 19 20.5355420472 +50 00 34.590204468 13.44 13.00 12.56     ~ 284 1
62 NAME M 81-82 Group GrG 09 55 +69.1           ~ 758 0
63 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
64 Z 153-10 G 09 59 26.46 +30 44 47.0 14.08 13.54 13.26 13.33   ~ 652 0
65 Z 36-12 H2G 10 00 00.8217342072 +05 20 09.533389560 12.77 12.25 11.89 11.71   ~ 569 0
66 NGC 3109 AG? 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 825 2
67 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
68 MCG-01-26-030 H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 789 2
69 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1238 2
70 M 96 GiP 10 46 45.744 +11 49 11.78 10.42 10.15 9.25 8.99   ~ 862 1
71 NGC 3621 Sy2 11 18 16.300 -32 48 45.36 10.10 9.44 9.56 8.07 10.1 ~ 661 3
72 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1963 2
73 NGC 4414 GiC 12 26 27.1276893168 +31 13 24.626206488 11.12 10.96 10.12     ~ 593 2
74 NGC 4496 GiP 12 31 39.2222392512 +03 56 21.641352828   11.71       ~ 376 0
75 NGC 4536 H2G 12 34 27.12887 +02 11 16.3680 11.14 11.16 10.55 17.393   ~ 913 3
76 NGC 4571 GiC 12 36 56.3722998960 +14 13 02.296534836   13.6       ~ 368 1
77 NGC 4603 GiG 12 40 55.2223531200 -40 58 35.061387924   12.42 11.30 10.96 11.5 ~ 125 0
78 NGC 4639 Sy1 12 42 52.3785000336 +13 15 26.706153600   13.62 12.72     ~ 642 0
79 Z 71-87 H2G 12 58 40.1930636208 +14 13 00.739589628 15.24 15.16 14.98 14.81   ~ 475 0
80 IC 4182 BiC 13 05 48.7478324064 +37 36 12.965157684   11.86   11.40   ~ 344 1
81 NGC 5253 rG 13 39 55.990 -31 38 24.11 11.48 10.94 10.49 10.33 13.47 ~ 1421 4
82 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
83 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0
84 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1284 2
85 [FBK98] V8 V* ~ ~           ~ 1 0
86 [FBK98] V9 V* ~ ~           ~ 1 0
87 [FBK98] V10 V* ~ ~           ~ 1 0
88 [FBK98] V11 V* ~ ~           ~ 1 0
89 [FBK98] V12 V* ~ ~           ~ 1 0
90 [FBK98] V13 V* ~ ~           ~ 1 0
91 [FBK98] V21 V* ~ ~           ~ 1 0
92 [FBK98] V14 V* ~ ~           ~ 1 0
93 [FBK98] V15 V* ~ ~           ~ 1 0
94 [FBK98] V16 V* ~ ~           ~ 1 0
95 [FBK98] V17 V* ~ ~           ~ 1 0
96 [FBK98] V18 V* ~ ~           ~ 1 0
97 [FBK98] V19 V* ~ ~           ~ 1 0
98 [FBK98] V20 V* ~ ~           ~ 1 0
99 [FBK98] V5 V* ~ ~           ~ 1 0
100 [FBK98] V4 V* ~ ~           ~ 1 0
101 [FBK98] V3 V* ~ ~           ~ 1 0
102 [FBK98] V23 V* ~ ~           ~ 1 0
103 [FBK98] V6 V* ~ ~           ~ 1 0
104 [FBK98] V22 V* ~ ~           ~ 1 0
105 [FBK98] V7 V* ~ ~           ~ 1 0

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