2013ApJ...767...51A

Query : 2013ApJ...767...51A

2013ApJ...767...51A - Astrophys. J., 767, 51 (2013/April-2)

An initial mass function study of the dwarf starburst galaxy NGC 4214.

ANDREWS J.E., CALZETTI D., CHANDAR R., LEE J.C., ELMEGREEN B.G., KENNICUTT R.C., WHITMORE B., KISSEL J.S., DA SILVA R.L., KRUMHOLZ M.R., O'CONNELL R.W., DOPITA M.A., FROGEL J.A. and KIM H.

Abstract (from CDS):

The production rate of ionizing photons in young ( ≤ 8 Myr), unresolved stellar clusters in the nearby irregular galaxy NGC 4214 is probed using multi-wavelength Hubble Space Telescope WFC3 data. We normalize the ionizing photon rate by the cluster mass to investigate the upper end of the stellar initial mass function (IMF). We have found that within the uncertainties the upper end of the stellar IMF appears to be universal in this galaxy, and that deviations from a universal IMF can be attributed to stochastic sampling of stars in clusters with masses {lap}103 M☉. Furthermore, we have found that there does not seem to be a dependence of the maximum stellar mass on the cluster mass. We have also found that for massive clusters, feedback may cause an underrepresentation in Hα luminosities, which needs to be taken into account when conducting this type of analysis.

Abstract Copyright: ∼

Journal keyword(s): galaxies: individual: NGC 4214 - galaxies: star clusters: general - galaxies: star formation - stars: luminosity function, mass function - stars: massive

VizieR on-line data: <Available at CDS (J/ApJ/767/51): table1.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 24

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Number of rows : 24
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 NGC 330 Cl* 00 56 18.55 -72 27 45.1 9.37 9.76 9.55   8.89 ~ 445 0
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
4 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
5 NAME Ori Trapezium OpC 05 35 16.5 -05 23 14           ~ 1708 1
6 RMC 136a Cl* 05 38 43.3 -69 06 08           ~ 158 2
7 [MMP2000] I-C1n PoG 12 15 38.741 +36 19 30.63           ~ 2 0
8 [MMM98b] Knot 8 PoG 12 15 38.983 +36 19 37.17           ~ 4 0
9 NGC 4228 SBG 12 15 39.174 +36 19 36.80 10.63 10.30 9.93 9.74   ~ 1017 1
10 [H82] NGC 4214 6 PoG 12 15 39.214 +36 19 33.75           ~ 6 0
11 [MMP2000] I-D2n PoG 12 15 39.232 +36 19 46.85           ~ 2 0
12 [MMP2000] I-As Cl* 12 15 39.5400 +36 19 36.490           ~ 5 0
13 [H82] NGC 4214 23 Cl* 12 15 39.558 +36 19 32.20           ~ 18 0
14 NAME NGC 4214-I HII 12 15 39.686 +36 19 34.12           ~ 16 0
15 [H82] NGC 4214 11 Cl* 12 15 40.539 +36 19 30.25           ~ 10 0
16 [MMP2000] II-C1n PoG 12 15 40.557 +36 19 12.73           ~ 2 0
17 [MMP2000] II-C2n PoG 12 15 40.654 +36 19 14.23           ~ 2 0
18 HK NGC 4214 55 Cl* 12 15 40.7700 +36 19 11.060           ~ 12 0
19 [MMM98b] Knot 11 PoG 12 15 41.083 +36 19 29.66           ~ 4 0
20 HK NGC 4214 58 Cl* 12 15 41.2000 +36 19 05.120           ~ 8 0
21 [MMM98b] Knot 13 PoG 12 15 42.309 +36 19 02.83           ~ 3 0
22 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
23 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2778 2
24 [MMP2000] I-Bs As* ~ ~           ~ 3 0

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