2004NewA....9..475D

Query : 2004NewA....9..475D

2004NewA....9..475D - New Astronomy, 9, 475-502 (2004/July-0)

On the recent star formation history of the Milky Way disk.

DE LA FUENTE MARCOS R. and DE LA FUENTE MARCOS C.

Abstract (from CDS):

We have derived the star formation history of the Milky Way disk over the last 2 Gyr from the age distribution diagram of a large sample of open clusters comprising more than 580 objects. By interpreting the age distribution diagram using numerical results from an extensive library of N-body calculations carried out during the last ten years, we reconstruct the recent star formation history of the Milky Way disk. Under the assumption that the disk has never been polluted by any extragalactic stellar populations, our analysis suggests that superimposed on a relatively small level of constant star formation activity mainly in small-N star clusters, the star formation rate has experienced at least five episodes of enhanced star formation lasting about 0.2 Gyr with production of larger clusters. This cyclic behaviour shows a period of 0.4±0.1 Gyr and could be the result of density waves and/or interactions with satellite galaxies. On the other hand, the star formation ratehis! tory from a volume-limited sample of open clusters in the solar neighbourhood appears to be consistent with the overall star formation history obtained from the entire sample. Pure continuous star formation both in the solar neighbourhood and the entire Galactic disk is strongly ruled out. Our results also indicate that, in the Milky Way disk, about 90% of open clusters are born with N1

Abstract Copyright: ∼

Journal keyword(s): Galaxy: kinematics and dynamics - Open clusters and associations: general - Galaxy: formation - Galaxy: evolution - Galaxy: stellar content - Galaxy: structure - Galaxy: disk

Simbad objects: 71

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Number of rows : 71
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 Cl Berkeley 104 OpC 00 03 28.1 +63 35 42           ~ 27 0
2 Cl Berkeley 60 OpC 00 17 45.6 +60 56 10           ~ 37 0
3 Cl King 15 OpC 00 33 02.9 +61 51 14           ~ 35 0
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11149 1
5 NGC 381 OpC 01 08 19.9 +61 35 02           ~ 68 0
6 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5838 1
7 IC 166 OpC 01 52 22.6 +61 51 25   13.0 11.7     ~ 89 0
8 NGC 752 OpC 01 56 53.5 +37 47 38           ~ 642 0
9 Cl Berkeley 64 OpC 02 21 42.7 +65 53 17           ~ 32 0
10 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7066 0
11 NGC 1254 G 03 14 23.8513208904 +02 40 40.455822828   15.5       ~ 13 0
12 Cl King 5 OpC 03 14 43.7 +52 41 42           ~ 75 0
13 NGC 1245 OpC 03 14 45.8 +47 14 06   9.16 8.4     ~ 151 0
14 NGC 1278 GiG 03 19 54.1310495136 +41 33 48.273592464   14.4 14.14     ~ 96 0
15 Cl King 6 OpC 03 27 55.7 +56 26 38           ~ 48 0
16 NGC 1348 OpC 03 34 05.8 +51 24 32           ~ 32 0
17 Cl Melotte 22 OpC 03 46 24.2 +24 06 50           ~ 3435 0
18 Cl Melotte 25 OpC 04 29 47.3 +16 56 53           ~ 3074 0
19 NGC 1663 err 04 49 15.6 +13 10 12           ~ 15 0
20 NGC 1817 OpC 05 12 33.4 +16 41 46           ~ 180 0
21 Cl Berkeley 20 OpC 05 32 36.5 +00 11 06           ~ 120 0
22 NGC 2112 OpC 05 53 48.5 +00 24 11     9.1     ~ 91 0
23 NGC 2141 OpC 06 02 56.2 +10 27 04           ~ 145 0
24 NGC 2158 OpC 06 07 26.9 +24 05 56           ~ 294 0
25 NGC 2194 OpC 06 13 45.6 +12 48 47   9.03 8.5     ~ 84 1
26 NGC 2192 OpC 06 15 17 +39 50.8     10.9     ~ 47 0
27 NGC 2204 OpC 06 15 31.7 -18 40 12   9.35 8.6     ~ 153 0
28 NGC 2243 OpC 06 29 34.8 -31 16 55   10.12 9.4     ~ 269 0
29 NGC 2236 OpC 06 29 39.8 +06 50 02   9.08 8.5     ~ 54 0
30 Cl Berkeley 23 OpC 06 33 16.3 +20 32 06           ~ 36 0
31 NGC 2259 OpC 06 38 31.9 +10 53 06     10.8     ~ 35 0
32 NGC 2266 OpC 06 43 19.7 +26 58 34     9.5     ~ 76 0
33 NGC 2304 OpC 06 55 12.5 +17 59 02     10.0     ~ 44 0
34 Cl Berkeley 30 OpC 06 57 45.1 +03 13 44           ~ 46 0
35 Cl Berkeley 33 OpC 06 57 49.4 -13 13 37           ~ 86 0
36 Cl Haffner 1 OpC 07 00 30.2 -20 34 08           ~ 59 0
37 Cl Haffner 2 OpC 07 03 05.5 -20 49 12           ~ 130 0
38 NGC 2324 OpC 07 04 07.9 +01 02 46   8.83 8.4     ~ 159 0
39 NAME CMa Dwarf Galaxy G 07 12.6 -27 40     -0.1     ~ 199 1
40 NGC 2354 OpC 07 14 00.7 -25 43 26   7.28 6.5     ~ 96 0
41 NGC 2355 OpC 07 16 59.3 +13 46 19     9.7     ~ 106 0
42 NGC 2360 OpC 07 17 46.3 -15 37 52           ~ 194 0
43 Cl Haffner 6 OpC 07 19 59.5 -13 09 04   9.97 9.2     ~ 42 0
44 Cl Melotte 66 OpC 07 26 17.5 -47 41 06   8.73       ~ 196 0
45 Cl Melotte 71 OpC 07 37 31.9 -12 03 54   7.44 7.1     ~ 130 0
46 ESO 368-7 OpC 07 38 44 -33 50.7           ~ 52 0
47 NGC 2477 OpC 07 52 11.0 -38 32 13   6.64 5.8     ~ 290 0
48 NGC 2506 OpC 08 00 02.4 -10 46 23   8.28 7.6     ~ 276 0
49 Cl Pismis 2 OpC 08 17 54.5 -41 40 26           ~ 44 0
50 NGC 2632 OpC 08 40 13.0 +19 37 16           ~ 1564 0
51 NGC 2660 OpC 08 42 40.1 -47 12 04   9.05 8.8     ~ 152 0
52 NGC 2849 OpC 09 19.4 -40 31     12.5     ~ 29 0
53 NGC 3680 OpC 11 25 34.1 -43 14 24   8.40 7.6     ~ 319 0
54 NGC 3990 GiP 11 57 35.5746104280 +55 27 31.486195296   13.57   12.10   ~ 118 0
55 NGC 4815 OpC 12 57 59.8 -64 57 36   9.61 8.6     ~ 98 0
56 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2318 1
57 Cl Pismis 19 OpC 14 30 39.8 -60 53 20           ~ 37 0
58 NGC 5822 OpC 15 04 12.2 -54 21 58           ~ 208 0
59 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1330 1
60 NGC 6134 OpC 16 27 48.7 -49 09 40   7.89 7.2     ~ 152 0
61 IC 4651 OpC 17 24 50.9 -49 55 01           ~ 350 0
62 IC 4756 OpC 18 38 35.8 +05 26 06           ~ 241 0
63 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2187 2
64 NGC 6749 OpC 19 05 15.36 +01 54 00.0     12.4     ~ 157 0
65 NGC 6802 OpC 19 30 36.2 +20 15 43   10.07 8.8     ~ 104 0
66 NGC 6827 OpC 19 48 52.8 +21 12 47           ~ 21 0
67 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 943 0
68 NGC 7044 OpC 21 13 08.2 +42 29 38     12.0     ~ 65 0
69 NGC 7789 OpC 23 57 20.2 +56 43 34   7.68 6.7     ~ 528 0
70 NAME Local Bubble ISM ~ ~           ~ 898 0
71 NAME Local Group GrG ~ ~           ~ 8391 0

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