2012A&A...541A..45N

Query : 2012A&A...541A..45N

2012A&A...541A..45N - Astronomy and Astrophysics, volume 541A45-45 (2012/5-1)

Manganese in dwarf spheroidal galaxies.

NORTH P., CESCUTTI G., JABLONKA P., HILL V., SHETRONE M., LETARTE B., LEMASLE B., VENN K.A., BATTAGLIA G., TOLSTOY E., IRWIN M.J., PRIMAS F. and FRANCOIS P.

Abstract (from CDS):

We provide manganese abundances (corrected for the effect of the hyperfine structure) for a large number of stars in the dwarf spheroidal galaxies Sculptor and Fornax, and for a smaller number in the Carina and Sextans dSph galaxies. Abundances had already been determined for a number of other elements in these galaxies, including α and iron-peak ones, which allowed us to build [Mn/Fe] and [Mn/α] versus [Fe/H] diagrams. The Mn abundances imply sub-solar [Mn/Fe] ratios for the stars in all four galaxies examined. In Sculptor, [Mn/Fe] stays roughly constant between [Fe/H]~-1.8 and -1.4 and decreases at higher iron abundance. In Fornax, [Mn/Fe] does not vary in any significant way with [Fe/H]. The relation between [Mn/α] and [Fe/H] for the dSph galaxies is clearly systematically offset from that for the Milky Way, which reflects the different star formation histories of the respective galaxies. The [Mn/α] behavior can be interpreted as a result of the metal-dependent Mn yields of Type II and Type Ia supernovae. We also computed chemical evolution models for star formation histories matching those determined empirically for Sculptor, Fornax, and Carina, and for the Mn yields of SNe Ia, which were assumed to be either constant or variable with metallicity. The observed [Mn/Fe] versus [Fe/H] relation in Sculptor, Fornax, and Carina can be reproduced only by the chemical evolution models that include a metallicity-dependent Mn yield from the SNe Ia.

Abstract Copyright: ∼

Journal keyword(s): stars: abundances - galaxies: dwarf - galaxies: stellar content - galaxies: evolution - galaxies: formation

Nomenclature: Table A.3: [NCJ2012] ETNNN (Nos ET009-ET392), Table A.5: [NCJ2012] SNN NNN (Nos S05 10, S05 047, S08 003, S08 006, S08 038).

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 98

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Number of rows : 98
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 2MASS J00594706-3342543 RG* 00 59 47.0571830400 -33 42 54.294121548     17.810   16.721 ~ 17 0
2 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
3 2MASS J02384047-3435251 RG* 02 38 40.4752184856 -34 35 25.265831460     18.51   16.98 ~ 9 0
4 [LHT2010] BL146 RG* 02 38 41.7927890574 -34 28 58.602098922           ~ 6 0
5 [LHT2010] BL084 RG* 02 38 42.9879986730 -34 25 49.436497802           ~ 5 0
6 2MASS J02384346-3432054 RG* 02 38 43.4731454496 -34 32 05.507582532     18.29   16.82 ~ 11 0
7 [LHT2010] BL163 RG* 02 38 43.5737449585 -34 32 25.631794706           ~ 6 0
8 2MASS J02384930-3424053 RG* 02 38 49.3100540064 -34 24 05.317024572     18.543   16.89 ~ 8 0
9 GB07 Fnx20 RG* 02 38 53.6508957336 -34 33 04.826280780     18.457   16.71 ~ 12 0
10 2MASS J02385377-3430067 RG* 02 38 53.7843539640 -34 30 06.884683200     18.39   16.80 ~ 12 0
11 [LHT2010] BL100 RG* 02 38 56.0321011320 -34 24 45.216767030           ~ 6 0
12 GB07 Fnx28 RG* 02 38 57.2199235584 -34 35 40.175367396     18.577     ~ 7 0
13 GB07 Fnx13 RG* 02 39 00.3186336432 -34 30 30.293164044     18.566   17.01 ~ 8 0
14 [WMO2009] For-1208 * 02 39 01.7737636416 -34 27 19.618725420     18.59   17.07 ~ 7 0
15 2MASS J02390409-3423531 RG* 02 39 04.0975378152 -34 23 53.136525732     18.44   16.98 ~ 8 0
16 GB07 Fnx05 RG* 02 39 04.3406484840 -34 25 19.173161388     18.390   16.96 ~ 9 0
17 2MASS J02390563-3426310 RG* 02 39 05.6468205096 -34 26 31.070375952     18.57   17.12 ~ 7 0
18 [LHT2010] BL158 RG* 02 39 06.8643906183 -34 35 45.982262223           ~ 6 0
19 GB07 Fnx31 RG* 02 39 08.1870665856 -34 36 53.680842684     18.274     ~ 8 0
20 GB07 Fnx16 RG* 02 39 08.5373495328 -34 30 55.662476112     18.398   16.92 ~ 8 0
21 GB07 Fnx09 RG* 02 39 11.0174908200 -34 28 34.794801984     18.527   17.07 ~ 9 0
22 GB07 Fnx15 RG* 02 39 11.5950166128 -34 30 45.025631532     18.496   16.9 ~ 9 0
23 GB07 Fnx10 RG* 02 39 13.9746891112 -34 28 36.602924029   20.039 18.550 17.708 16.99 ~ 10 0
24 2MASS J02391438-3422418 RG* 02 39 14.3673579432 -34 22 42.008681496     18.37   16.84 ~ 9 0
25 GB07 Fnx26 RG* 02 39 14.3827552392 -34 34 42.637844820     18.757   17.11 ~ 12 0
26 [LHT2010] BL104 RG* 02 39 14.6216479830 -34 23 21.500656227           ~ 6 0
27 [WMO2009] For-0391 * 02 39 14.8074249264 -34 27 30.365297820     18.53   17.02 ~ 7 0
28 2MASS J02391551-3430468 RG* 02 39 15.5049244920 -34 30 46.890998244     18.61   17.06 ~ 7 0
29 GB07 Fnx12 RG* 02 39 16.0444264824 -34 30 13.352608044     18.496   16.96 ~ 12 0
30 [LHT2010] BL138 RG* 02 39 16.2349562521 -34 37 00.605900154           ~ 8 0
31 GB07 Fnx17 RG* 02 39 17.8282697688 -34 30 57.039860448     18.702   16.98 ~ 9 0
32 GB07 Fnx18 RG* 02 39 20.2378506168 -34 31 57.280700280     18.533   16.99 ~ 8 0
33 GB07 Fnx01 RG* 02 39 22.1826197976 -34 19 40.745159904     18.355   17 ~ 7 0
34 GB07 Fnx25 RG* 02 39 24.8304854804 -34 34 38.274693223     18.577   17.01 ~ 10 0
35 GB07 Fnx33 RG* 02 39 27.6904648656 -34 37 48.791442756   19.829 18.347 17.448   ~ 13 0
36 GB07 Fnx23 RG* 02 39 28.0529840088 -34 34 01.280850276   19.948 18.580 17.693 17.02 ~ 12 0
37 2MASS J02392937-3426359 RG* 02 39 29.3612731224 -34 26 35.909558484   20.023 18.417 17.513 16.76 ~ 14 0
38 GB07 Fnx03 RG* 02 39 31.5212133624 -34 23 05.395380288     18.534   17.05 ~ 12 0
39 2MASS J02393189-3429201 RG* 02 39 31.8813950832 -34 29 20.159436912   19.988 18.509 17.637 16.94 ~ 14 0
40 2MASS J02393297-3432061 RG* 02 39 32.9670178104 -34 32 06.231358968   19.898 18.42 17.651 17 ~ 11 0
41 2MASS J02393411-3433333 RG* 02 39 34.1028400848 -34 33 33.267768948     18.464     ~ 7 0
42 GB07 Fnx21 RG* 02 39 34.1141539800 -34 33 09.701904456     18.641   17.01 ~ 10 0
43 GB07 Fnx32 RG* 02 39 38.0933137368 -34 37 06.310980516     18.494   17.07 ~ 9 0
44 GB07 Fnx14 RG* 02 39 41.9495101800 -34 30 36.019343448     18.488   16.84 ~ 9 0
45 GB07 Fnx36 RG* 02 39 43.0954599408 -34 40 18.653395836     18.641   17.05 ~ 9 0
46 2MASS J02394507-3440114 RG* 02 39 45.0654331464 -34 40 11.337737376   20.453 18.635     ~ 7 0
47 [LHT2010] BL227 RG* 02 39 45.2751806495 -34 31 57.867250727           ~ 10 0
48 2MASS J02394711-3431499 RG* 02 39 47.1107180904 -34 31 49.878417792   20.269 18.59 17.746   ~ 11 0
49 2MASS J02394768-3427058 RG* 02 39 47.6773261008 -34 27 05.788441152   19.932 18.38 17.623 16.91 ~ 9 0
50 2MASS J02394972-3428506 RG* 02 39 49.7023803432 -34 28 50.637389844   20.188 18.6 17.813 17.06 ~ 10 0
51 2MASS J02395022-3435595 * 02 39 50.2180008096 -34 35 59.422332120   19.914 18.35 17.614 16.9 ~ 10 0
52 2MASS J02395065-3426474 RG* 02 39 50.6642553312 -34 26 47.444004096   20.088 18.39 17.658 16.91 ~ 13 0
53 WEL 60 RG* 02 39 50.7986837496 -34 28 36.829639848     18.53     K5 8 0
54 [MOW91] 16 RG* 02 39 51.2172969288 -34 29 58.867178388   20.20 18.57   16.74 ~ 12 0
55 GB07 Fnx02 RG* 02 39 51.4491689640 -34 21 21.107522736   20.63 18.548     ~ 10 0
56 [LHT2010] BL233 RG* 02 39 53.6139290592 -34 37 50.154236911           ~ 6 0
57 2MASS J02395387-3429567 RG* 02 39 53.8678292952 -34 29 56.558760360   20.47 18.29   16.70 ~ 9 0
58 [KGS2010] For 64059 RG* 02 39 55.4015132472 -34 29 54.846116256   20.214   17.719   ~ 10 0
59 [WMO2009] For-1233 * 02 39 56.0375212872 -34 24 10.603664676     18.46   16.98 ~ 8 0
60 [KGS2010] For 66101 RG* 02 39 57.3255133560 -34 31 21.002452428   20.153   17.674   ~ 9 0
61 [LHT2010] BL261 RG* 02 39 57.8196153297 -34 26 49.235647056           ~ 9 0
62 [WMO2009] For-2280 RR* 02 39 58.2312601848 -34 32 05.319000816   20.109 18.43 17.616 16.9 ~ 16 0
63 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
64 GB07 Fnx34 RG* 02 40 02.7253509744 -34 38 30.019620948     18.162   16.902 ~ 6 0
65 WEL 112 RG* 02 40 04.4134239600 -34 27 11.601236808   19.946 18.37 17.414   K5 17 0
66 2MASS J02400550-3432429 RG* 02 40 05.5084039440 -34 32 42.767412360   20.155 18.326 17.595 16.74 ~ 12 0
67 2MASS J02400753-3423320 RG* 02 40 07.5419948856 -34 23 31.992389592     18.42   16.99 ~ 10 0
68 2MASS J02401001-3429589 RG* 02 40 10.0211800872 -34 29 58.971068232   19.76 18.2 18.060 16.75 ~ 17 0
69 [WMO2009] For-1250 RG* 02 40 16.7867669616 -34 29 34.568503332   20.082 18.39 17.547 16.75 ~ 14 0
70 GB07 Fnx07 RG* 02 40 17.5320786384 -34 26 06.568309572     18.180   16.76 ~ 9 0
71 [WMO2009] For-2044 RG* 02 40 17.9251606224 -34 27 01.042993260     18.42   16.79 ~ 12 0
72 2MASS J02402046-3424003 RG* 02 40 20.4704009928 -34 24 00.376747020     18.37   16.73 ~ 11 0
73 2MASS J02402422-3426205 RG* 02 40 24.2493531072 -34 26 20.369868324   19.872 18.41 17.709 17.04 ~ 9 0
74 2MASS J02402674-3426571 RG* 02 40 26.7435299016 -34 26 57.133609440   20.097   17.573   ~ 8 0
75 [BTH2006] fnx-05 042 RG* 02 41 30.9834683776 -33 55 44.764614638           ~ 8 0
76 [WMO2009] Car-0180 RG* 06 40 31.1284556352 -50 55 24.540416292   19.063 17.789   16.395 ~ 12 0
77 [WMO2009] Car-0212 RG* 06 40 40.8320662392 -50 54 29.126271888   19.527 18.330   17.057 ~ 11 0
78 [WMO2009] Car-0225 RG* 06 40 56.9599945368 -50 58 38.308449396   19.329 18.138   16.813 ~ 12 0
79 [MOP2000] C120887 RG* 06 40 57.0920448000 -50 57 44.362156212   19.663 18.621   17.420 ~ 10 0
80 [MOP93] 15 RG* 06 41 15.6636690720 -50 59 48.032583468   19.168 17.867   16.448 ~ 13 0
81 [MOP2000] C121334 RG* 06 41 16.3077751704 -51 00 18.658947240   19.292 18.153   16.840 ~ 10 0
82 2MASS J06411857-5053115 RG* 06 41 18.5671875617 -50 53 11.585241456   19.255 18.069   16.710 ~ 9 0
83 [MCA82] C8 RG* 06 41 26.1146204760 -50 55 43.907009844   18.982 17.635   16.197 ~ 13 0
84 [MOP2000] C121630 RR* 06 41 27.1806651552 -51 00 18.345115476   19.023 17.744   16.352 ~ 16 0
85 [WMO2009] Car-1494 RG* 06 41 29.0653876608 -50 56 46.215661020   20.009 18.996   17.808 ~ 8 0
86 ESO 206-20A G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1190 0
87 [WMO2009] Car-0531 RG* 06 41 44.6473871688 -51 03 31.237307892   19.485 18.324   16.989 ~ 12 0
88 [WMO2009] Car-0123 RG* 06 41 45.9985927320 -50 51 00.501546816   19.310 18.190   16.889 ~ 10 0
89 [WMO2009] Car-0530 RG* 06 41 51.5410091808 -51 03 35.809342056   19.663 18.662   17.452 ~ 7 0
90 [WMO2009] Car-0724 RG* 06 41 58.1926110720 -50 48 57.951844272   19.555 18.480   17.250 ~ 7 0
91 [WMO2009] Car-0526 RG* 06 42 02.8073666448 -50 58 59.421838764   19.360 18.242   16.954 ~ 11 0
92 [WMO2009] Car-0165 RG* 06 42 17.4506738304 -50 56 26.090562588   19.706 18.666   17.463 ~ 8 0
93 [WMO2009] Car-0078 RG* 06 42 30.3727226880 -50 56 33.109711728   19.811 18.776   17.555 ~ 8 0
94 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
95 NAME Sextans dSph LSB 10 13 02.9 -01 36 53   12 10.4     ~ 921 0
96 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
97 HD 122563 Pe* 14 02 31.8455084952 +09 41 09.944391876 7.47 7.10 6.19 5.37 4.79 G8:III:Fe-5 920 0
98 NAME Local Group GrG ~ ~           ~ 9325 0

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