2017A&A...600A..14S


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.12CEST12:56:05

2017A&A...600A..14S - Astronomy and Astrophysics, volume 600A, 14-14 (2017/4-1)

Baade's window and APOGEE. Metallicities, ages, and chemical abundances.

SCHULTHEIS M., ROJAS-ARRIAGADA A., GARCIA PEREZ A.E., JONSSON H., HAYDEN M., NANDAKUMAR G., CUNHA K., ALLENDE PRIETO C., HOLTZMAN J.A., BEERS T.C., BIZYAEV D., BRINKMANN J., CARRERA R., COHEN R.E., GEISLER D., HEARTY F.R., FERNANDEZ-TRICADO J.G., MARASTON C., MINNITTI D., NITSCHELM C., ROMAN-LOPES A., SCHNEIDER D.P., TANG B., VILLANOVA S., ZASOWSKI G. and MAJEWSKI S.R.

Abstract (from CDS):

Context. Baade's window (BW) is one of the most observed Galactic bulge fields in terms of chemical abundances. Owing to its low and homogeneous interstellar absorption it is considered the perfect calibration field for Galactic bulge studies.
Aims. In the era of large spectroscopic surveys, calibration fields such as BW are necessary for cross calibrating the stellar parameters and individual abundances of the APOGEE survey.
Methods. We use the APOGEE BW stars to derive the metallicity distribution function (MDF) and individual abundances for α- and iron-peak elements of the APOGEE ASPCAP pipeline (DR13), as well as the age distribution for stars in BW.
Results. We determine the MDF of APOGEE stars in BW and find a remarkable agreement with that of the Gaia-ESO survey (GES). Both exhibit a clear bimodal distribution. We also find that the Mg-metallicity planes of the two surveys agree well, except for the metal-rich part ([Fe/H]>0.1), where APOGEE finds systematically higher Mg abundances with respect to the GES. The ages based on the [C/N] ratio reveal a bimodal age distribution, with a major old population at ∼10Gyr, with a decreasing tail towards younger stars. A comparison of stellar parameters determined by APOGEE and those determined by other sources reveals detectable systematic offsets, in particular for spectroscopic surface gravity estimates. In general, we find a good agreement between individual abundances of O, Na, Mg, Al, Si, K, Ca, Cr, Mn, Co, and Ni from APOGEE with that of literature values.
Conclusions. We have shown that in general APOGEE data show a good agreement in terms of MDF and individual chemical abundances with respect to literature works. Using the [C/N] ratio we found a significant fraction of young stars in BW.

Abstract Copyright: © ESO, 2017

Journal keyword(s): Galaxy: bulge - Galaxy: stellar content - stars: fundamental parameters - stars: abundances - infrared: stars - infrared: stars

Simbad objects: 67

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Number of rows : 67

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 BMB 55 AB* 18 03 08.1080623466 -29 57 47.937362288     18.836   13.494 M8 14 0
2 2MASS J18031683-3006111 RG* 18 03 16.8323181882 -30 06 11.201935731     16.41   14.400 ~ 7 0
3 UCAC4 300-172960 * 18 03 19.9769496060 -30 04 27.416343314     16.89 16.10 14.49 ~ 3 0
4 ISOGAL-P J180323.6-300159 AB* 18 03 23.5581380761 -30 01 59.006808411     13.804   11.744 ~ 32 0
5 [B86] 52 RG* 18 03 28.2444647360 -30 04 10.996370714     16.027   14.015 M1 24 0
6 Cl* NGC 6522 ARP 4329 * 18 03 28.4319214113 -29 58 41.692167635     15.110 14.58 13.282 ~ 27 0
7 [B86] 66 LP* 18 03 31.6841990495 -30 00 43.831969183     14.252 13.64 11.676 M3 14 0
8 UCAC4 300-173941 * 18 03 32.8478091878 -30 05 45.060221585     17.00 16.41 14.62 ~ 3 0
9 [B86] 78 RG* 18 03 33.7377149818 -30 03 57.345113853     14.668   12.349 M2 8 0
10 [B86] 91 RG* 18 03 35.7608188467 -29 58 35.436931820     15.725   13.929 M1 23 0
11 UCAC3 120-361873 * 18 03 36.5963155073 -30 02 16.463106350     15.98 15.56 15.40 ~ 12 0
12 2MASS J18033691-3007047 RG* 18 03 36.9107358922 -30 07 04.745151389     18.387   14.272 K 16 0
13 OGLE BLG-LPV-194566 LP* 18 03 38.1855792929 -30 00 51.625818438     14.303   12.481 ~ 16 0
14 [B86] 106 RG* 18 03 40.5008379275 -30 03 28.123205283     15.484 14.92 13.696 M2 6 0
15 Cl* NGC 6522 ARP 2225 RG* 18 03 40.9316966793 -30 04 42.027386879     16.352   14.494 ~ 7 0
16 UCAC4 300-174654 * 18 03 41.6363867633 -30 07 55.018938143     16.47 15.87 14.039 ~ 4 0
17 Cl* NGC 6522 ARP 1151 RG* 18 03 43.1976235635 -29 59 40.549704869   17.28 15.914   14.247 ~ 19 0
18 UCAC4 301-180093 mul 18 03 43.799 -29 57 16.25       15.40   ~ 1 0
19 UCAC4 301-180276 * 18 03 46.1560320610 -29 58 30.418590845     16.39 15.83 14.255 ~ 6 0
20 Cl* NGC 6522 ARP 2137 RG* 18 03 49.0563377886 -30 03 38.610486099     16.269   14.393 ~ 11 0
21 Cl* NGC 6522 ARP 2119 * 18 03 49.3860060164 -30 02 44.121956663     15.678 15.25 13.965 ~ 13 0
22 Cl* NGC 6522 ARP 1322 RG* 18 03 49.3866213216 -30 01 54.191241971   16.46 14.467   12.532 ~ 29 0
23 Cl* NGC 6522 ARP 1202 * 18 03 49.8870894827 -30 00 08.464052089     15.804 15.25 13.963 ~ 16 0
24 2MASS J18035131-2957281 RG* 18 03 51.3027744661 -29 57 28.495329603     16.54 15.23 14.35 ~ 6 0
25 UCAC4 301-181035 * 18 03 56.3259367158 -29 56 41.047432431     16.47 15.88 14.21 ~ 3 0
26 UCAC4 301-181242 * 18 03 59.2917440081 -29 49 51.915912509     16.94 16.00 14.42 ~ 3 0
27 UCAC4 300-175862 * 18 03 59.3840431479 -30 06 02.709314251     16.38 15.89 14.45 ~ 3 0
28 UCAC4 300-175892 * 18 03 59.7536143546 -30 07 47.419937798     16.56 16.00 14.30 ~ 4 0
29 2MASS J18040008-2955079 RG* 18 04 00.1170276245 -29 55 07.739816531     16.56 14.81 14.48 ~ 6 0
30 UCAC4 301-181307 * 18 04 00.2731528327 -29 58 25.271171930     16.09 15.80 14.40 ~ 3 0
31 UCAC4 300-175931 * 18 04 00.2750641005 -30 04 01.144765808     16.58 14.23 14.42 ~ 3 0
32 UCAC4 300-176014 * 18 04 01.7328417267 -30 01 49.061431493       14.68   ~ 1 0
33 UCAC4 301-181567 * 18 04 03.9687252544 -29 59 22.376504667     16.60 15.84 14.345 ~ 4 0
34 2MASS J18040486-3003009 RG* 18 04 04.8239587073 -30 03 00.455645333     16.61 14.44 14.58 ~ 5 0
35 2MASS J18040492-2952427 RG* 18 04 04.9270516098 -29 52 42.784919549     16.55 15.75 14.42 ~ 6 0
36 UCAC4 300-176252 * 18 04 05.3511750154 -30 05 53.001688664     16.95 16.06 14.42 ~ 8 0
37 2MASS J18040747-2955001 RG* 18 04 07.4685910655 -29 55 00.177779225     16.29   14.24 ~ 6 0
38 UCAC4 300-176433 * 18 04 08.4074880838 -30 04 38.323071062     17.04 15.76 14.50 ~ 3 0
39 2MASS J18040883-3002037 RG* 18 04 08.8270681837 -30 02 03.788779774     16.32 15.82 14.28 ~ 6 0
40 UCAC4 300-176618 * 18 04 11.6517992663 -30 09 49.596719405     16.55 16.04 14.36 ~ 4 0
41 UCAC4 301-182099 * 18 04 11.7862844960 -29 51 10.008921670     16.43 16.03 14.40 ~ 4 0
42 2MASS J18041187-3006214 RG* 18 04 11.8810407897 -30 06 21.340389231     16.29 15.93 14.22 ~ 5 0
43 2MASS J18041328-2958182 RG* 18 04 13.2871674588 -29 58 18.227164819     18.832   14.45 K 12 0
44 2MASS J18041410-3007315 RG* 18 04 14.1020561758 -30 07 31.576422621     16.19   14.27 ~ 5 0
45 UCAC4 300-176789 * 18 04 14.8901294999 -30 10 15.783243470       14.31   ~ 1 0
46 UCAC4 300-176798 * 18 04 14.9180334283 -30 07 08.838891123       14.71   ~ 1 0
47 2MASS J18041554-3001431 RG* 18 04 15.5448375629 -30 01 43.047838475     16.05   14.24 ~ 7 0
48 2MASS J18041566-3008540 RG* 18 04 15.6738880359 -30 08 54.063877000     16.64 16.11 14.48 ~ 5 0
49 UCAC4 300-176857 * 18 04 16.0586739398 -30 05 25.483445164     16.33 15.56 14.30 ~ 3 0
50 2MASS J18041720-2956497 RG* 18 04 17.2071724410 -29 56 49.696089155     16.38 15.82 14.30 ~ 7 0
51 2MASS J18041770-3000304 RG* 18 04 17.6931136378 -30 00 30.198617138     16.57   14.28 ~ 6 0
52 2MASS J18042178-3006128 RG* 18 04 21.7786257378 -30 06 12.523658111     16.58 15.21 14.62 ~ 6 0
53 2MASS J18042205-3011214 RG* 18 04 22.0518157565 -30 11 21.480424456     16.59   14.48 ~ 5 0
54 2MASS J18042236-3004162 * 18 04 22.3638153101 -30 04 15.957538222     16.73   14.54 ~ 4 0
55 BMB 289 AB* 18 04 22.6568376253 -29 54 51.827208503     17.217   11.846 M9 18 0
56 2MASS J18042722-2958570 RG* 18 04 27.2392016705 -29 58 56.959893479     16.15 15.75 14.36 ~ 7 0
57 UCAC4 300-177437 * 18 04 27.2605622881 -30 01 10.792584736     15.90 15.56 14.37 ~ 3 0
58 UCAC4 300-177546 * 18 04 29.2057561432 -30 06 12.287956772     16.65 15.88 14.39 ~ 4 0
59 2MASS J18042994-3004324 RG* 18 04 29.9257920147 -30 04 32.475138411     16.42 16.11 14.35 ~ 6 0
60 2MASS J18043142-2959515 * 18 04 31.3982531771 -29 59 51.244117583           ~ 1 0
61 2MASS J18043319-3009500 RG* 18 04 33.1953501425 -30 09 50.284086245     16.45 15.92 14.29 ~ 6 0
62 UCAC4 301-183450 ** 18 04 34.06176 -29 59 54.6504       14.91   ~ 4 0
63 2MASS J18043821-3003251 RG* 18 04 38.2228253398 -30 03 25.044362360     16.85 15.92 14.40 ~ 6 0
64 2MASS J18044764-3005147 RG* 18 04 47.6437027339 -30 05 14.694525304     16.55   14.32 ~ 6 0
65 UCAC4 300-178396 * 18 04 49.0019442386 -30 08 07.704603075     16.83 16.02 14.32 ~ 4 0
66 2MASS J18045455-2958169 RG* 18 04 54.5693400334 -29 58 16.941126909     16.40 15.84 14.38 ~ 7 0
67 UCAC4 300-178644 * 18 04 55.4888970968 -30 03 28.576378430     16.92 16.04 14.49 ~ 3 0

    Equat.    Gal    SGal    Ecl

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2020.07.12-12:56:05

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