2011ApJ...736..152C

Query : 2011ApJ...736..152C

2011ApJ...736..152C - Astrophys. J., 736, 152 (2011/August-1)

Modeling of the initial mass function using the Metropolis{x2212}Hastings algorithm.

CHATTOPADHYAY T., CHATTOPADHYAY A.K. and SINHA A.

Abstract (from CDS):

A stochastic model has been developed for the hierarchical fragmentation of a molecular cloud. Here, the number of fragments, time between successive fragmentation steps, and mass of a fragment are considered as random variables, and fragment masses are generated using the Metropolis-Hastings algorithm. The resulting mass spectra, computed at different projected distances and taking opacity into consideration, show a signature of mass segregation. The critical mass, mass spectrum, and mass segregation are consistent with the observations of young massive clusters in our Galaxy as well as in external galaxies.

Abstract Copyright: ∼

Journal keyword(s): methods: statistical - stars: luminosity function, mass function

Simbad objects: 22

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Number of rows : 22
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 VDB0 Cl* 00 40 29.385 +40 36 15.20 14.957 14.94 15.288 15.056 14.701 ~ 45 2
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
3 Bol D257 GlC 00 44 59.50 +41 54 46.8 18.70 18.93 18.48   17.60 ~ 31 1
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
5 NGC 330 Cl* 00 56 18.55 -72 27 45.1 9.37 9.76 9.55   8.89 ~ 445 0
6 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
7 HD 268850 AB* 05 02 21.4730341272 -66 06 38.294439372   11.83 11.55 12.43   ~ 89 0
8 NGC 1805 GlC 05 02 21.690 -66 06 39.43           ~ 115 0
9 NGC 1818 GlC 05 04 13.300 -66 26 05.47           ~ 279 0
10 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
11 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
12 NGC 2164 OpC 05 58 55.900 -68 30 58.09   10.44 10.34     ~ 127 0
13 NGC 2214 OpC 06 12 57 -68 15.6   11.04 10.93     ~ 119 0
14 NGC 3603 OpC 11 14 57.9 -61 14 32           ~ 1136 1
15 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1364 1
16 [MLT2008] S2-3 Cl* 12 01 53.130 -18 52 25.63           ~ 6 0
17 [MLT2008] S1-5 Cl* 12 01 54.310 -18 51 56.86           ~ 6 0
18 [MLT2008] S2-1 Cl* 12 01 55.540 -18 52 20.73           ~ 6 0
19 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
20 Cl Westerlund 1 OpC 16 47 02.4 -45 51 07           ~ 655 1
21 NAME Arches Cluster Cl* 17 45 50.5 -28 49 28           ~ 792 0
22 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0

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