2009AJ....138....1K

Query : 2009AJ....138....1K

2009AJ....138....1K - Astron. J., 138, 1-6 (2009/July-0)

Large Magellanic cloud distance and structure from near-infrared red clump observations.

KOERWER J.F.

Abstract (from CDS):

We have applied the Infrared Survey Facility Magellanic Clouds Point-Source Catalog to the mapping of the red clump (RC) distance modulus across the Large Magellanic Cloud (LMC). Using the J- (1.25 µm) and H- (1.63 µm) band data to derive a reddening free luminosity function and a theoretical RC absolute magnitude from stellar evolution libraries, we estimate a distance modulus to the LMC of µ = 18.54±0.06. The best fitting plane inclination, i, and the position angle of the line of nodes, φ, have little dependence on the assumed RC absolute magnitude; we find i = 23°.5±0°.4 and φ = 154°.6±1°.2. It was also noted that many fields included a significant asymptotic giant branch bump population that must be accounted for.

Abstract Copyright: ∼

Journal keyword(s): Magellanic Clouds - stars: distances - stars: luminosity function, mass function

Simbad objects: 21

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Number of rows : 21
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 * omi Cet Mi* 02 19 20.79210 -02 58 39.4956   7.63 6.53 5.03   M5-9IIIe+DA 1586 0
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
4 NAME Magellanic Bridge HI 03 11 -77.5           ~ 522 1
5 NGC 1651 GlC 04 37 32.530 -70 35 08.71   12.99 12.28     ~ 125 0
6 NAME LMC 7 Supergiant Shell HII 04 53 41 -69 35.2           ~ 26 0
7 LHA 120-N 11 HII 04 56 51.4 -66 24 24           ~ 275 0
8 NAME LMC 6 Supergiant Shell HII 04 57 48 -68 40.5           ~ 26 0
9 NAME LMC 1 Supergiant Shell sh 04 59 41 -65 44.7           ~ 40 0
10 NAME LMC 8 Supergiant Shell sh 05 02 51 -70 33.3           ~ 34 0
11 NAME LMC Bar PoG 05 22 08 -69 23.5           ~ 343 0
12 NAME LMC 5 Supergiant Shell sh 05 22 42 -66 05.6           ~ 56 0
13 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
14 NAME LMC 9 Supergiant Shell sh 05 25 46 -71 09.3           ~ 24 0
15 NAME LMC 3 Supergiant Shell sh 05 30 26 -69 07.9           ~ 73 0
16 NAME LMC 4 Supergiant Shell sh 05 31 33 -66 40.5           ~ 183 0
17 NAME Hodge 4 GlC 05 32 25.64 -64 44 07.7     13.33     ~ 52 0
18 SN 1987A SN* 05 35 27.98840 -69 16 11.1134           SNIIpec 5203 2
19 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
20 NAME LMC 2 Supergiant Shell sh 05 41 27 -69 22.4           ~ 200 0
21 V* RR Lyr RR* 19 25 27.9129605304 +42 47 03.693258204   7.36   7.6   kA3hF0 951 0

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