2004AJ....127.2322T

Query : 2004AJ....127.2322T

2004AJ....127.2322T - Astron. J., 127, 2322-2343 (2004/April-0)

Cepheids and long-period variables in NGC 4395.

THIM F., HOESSEL J.G., SAHA A., CLAVER J., DOLPHIN A. and TAMMANN G.A.

Abstract (from CDS):

Repeated imaging observations of NGC 4395 were made with the WIYN 3.5 m and the KPNO 2.1 m telescopes. From the photometry of the resolved brighter stars in this galaxy, 11 Cepheids with periods ranging between 12 and 90 days have been identified. The true distance modulus has been derived from the apparent distance moduli in g, r, and i. The distance modulus is 28.02±0.18 based on the LMC period-luminosity (P-L) relation of Sandage, Reindl, & Tammann; this corresponds to a distance of 4.0±0.3 Mpc. Using the P-L relation from Madore & Freedman, the distance modulus is 28.15±0.18, which corresponds to a distance of 4.3±0.4 Mpc. The reddening is calculated to be E(g-r)=0.06±0.08 and E(r-i)=0.10±0.08, again from the distance moduli µg, µr, and µi. In addition, 37 other variables have been detected, the majority of which have definite periods; they are probably all red long-period variables.

Abstract Copyright: ∼

Journal keyword(s): Stars: Variables: Cepheids - Cosmology: Distance Scale - Galaxies: Individual: NGC Number: NGC 4395 - Stars: Variables: Other

Nomenclature: Table 2: [THS2004] A (Nos A-D, Z), [THS2004] aN (Nos f1-f3). Table 5: [THS2004] ANN (Nos C1-C11). Table 6: [THS2004] ANN (Nos V1-V37).

Simbad objects: 57

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Number of rows : 57
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 [THS2004] V37 V* 12 25 45.8 +33 33 53           ~ 1 0
2 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1286 1
3 [THS2004] V36 V* 12 25 49.1 +33 33 00           ~ 1 0
4 [THS2004] C11 Ce* 12 25 49.1 +33 34 00           ~ 1 0
5 [THS2004] V34 V* 12 25 49.2 +33 33 48           ~ 1 0
6 [THS2004] V33 V* 12 25 49.2 +33 34 31           ~ 1 0
7 [THS2004] V35 V* 12 25 49.7 +33 32 06           ~ 1 0
8 [THS2004] V31 V* 12 25 51.1 +33 34 05           ~ 1 0
9 [THS2004] Z * 12 25 51.2414340912 +33 31 25.558724352           ~ 3 0
10 [THS2004] V32 V* 12 25 51.5 +33 32 17           ~ 1 0
11 [THS2004] C10 Ce* 12 25 51.6 +33 34 25           ~ 1 0
12 [THS2004] V29 V* 12 25 52.7 +33 33 04           ~ 1 0
13 [THS2004] V30 V* 12 25 52.9 +33 32 26           ~ 1 0
14 [THS2004] C09 Ce* 12 25 53.5 +33 31 22           ~ 1 0
15 [THS2004] V28 V* 12 25 53.9 +33 30 51           ~ 1 0
16 [THS2004] V27 V* 12 25 54.0 +33 30 59           ~ 1 0
17 [THS2004] A * 12 25 54.1317934560 +33 31 39.667934064           ~ 1 0
18 [THS2004] V26 V* 12 25 54.2 +33 31 32           ~ 1 0
19 [THS2004] C08 Ce* 12 25 54.3 +33 31 07           ~ 1 0
20 [THS2004] C06 Ce* 12 25 54.9 +33 32 51           ~ 1 0
21 [THS2004] C07 Ce* 12 25 55.0 +33 30 14           ~ 1 0
22 [THS2004] V20 V* 12 25 55.0 +33 35 10           ~ 1 0
23 [THS2004] V23 V* 12 25 56.0 +33 31 28           ~ 1 0
24 [THS2004] V24 V* 12 25 56.1 +33 31 04           ~ 1 0
25 [THS2004] V21 V* 12 25 56.1 +33 32 21           ~ 1 0
26 [THS2004] V25 V* 12 25 56.2 +33 30 46           ~ 1 0
27 [THS2004] V22 V* 12 25 56.2 +33 31 26           ~ 1 0
28 [THS2004] V18 V* 12 25 56.2 +33 34 56           ~ 1 0
29 [THS2004] V19 V* 12 25 57.4 +33 30 10           ~ 1 0
30 [THS2004] C * 12 25 57.5 +33 32 47           ~ 1 0
31 [THS2004] B * 12 25 57.5 +33 32 47           ~ 1 0
32 [THS2004] V17 V* 12 25 58.5 +33 30 03           ~ 1 0
33 [THS2004] V16 V* 12 25 58.9 +33 30 34           ~ 1 0
34 [THS2004] f3 * 12 25 58.9 +33 34 39           ~ 1 0
35 [THS2004] V15 V* 12 25 59.3 +33 30 57           ~ 1 0
36 [THS2004] V14 V* 12 25 59.5 +33 32 06           ~ 1 0
37 [THS2004] V13 V* 12 26 00.6 +33 31 40           ~ 1 0
38 [THS2004] V12 V* 12 26 01.1 +33 32 02           ~ 1 0
39 [THS2004] V11 V* 12 26 02.9 +33 31 17           ~ 1 0
40 [THS2004] V10 V* 12 26 03.3 +33 31 24           ~ 1 0
41 [THS2004] C05 Ce* 12 26 03.9 +33 32 35           ~ 1 0
42 [THS2004] V09 V* 12 26 04.0 +33 31 13           ~ 1 0
43 [THS2004] V08 V* 12 26 04.7 +33 30 58           ~ 1 0
44 [THS2004] C04 Ce* 12 26 06.3 +33 30 33           ~ 1 0
45 [THS2004] C03 Ce* 12 26 06.3 +33 30 42           ~ 1 0
46 [THS2004] D * 12 26 08.1 +33 33 24           ~ 1 0
47 [THS2004] V07 V* 12 26 08.3 +33 31 10           ~ 1 0
48 [THS2004] V06 V* 12 26 09.4 +33 31 48           ~ 1 0
49 [THS2004] f1 * 12 26 11.2 +33 34 51           ~ 1 0
50 [THS2004] V05 V* 12 26 12.0 +33 31 07           ~ 1 0
51 [THS2004] C02 Ce* 12 26 12.9 +33 30 33           ~ 1 0
52 [THS2004] V04 V* 12 26 13.2 +33 35 24           ~ 1 0
53 [THS2004] C01 Ce* 12 26 16.8 +33 33 07           ~ 1 0
54 [THS2004] V03 V* 12 26 17.1 +33 30 46           ~ 1 0
55 [THS2004] V02 V* 12 26 17.1 +33 31 16           ~ 1 0
56 [THS2004] V01 V* 12 26 17.1 +33 33 51           ~ 1 0
57 [THS2004] f2 * 12 26 17.3 +33 33 16           ~ 1 0

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