2019MNRAS.490..741S


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.16CEST19:34:51

2019MNRAS.490..741S - Mon. Not. R. Astron. Soc., 490, 741-751 (2019/November-3)

A nitrogen-enhanced metal-poor star discovered in the globular cluster ESO280-SC06.

SIMPSON J.D. and MARTELL S.L.

Abstract (from CDS):

We report the discovery of the only very nitrogen-enhanced metal-poor star known in a Galactic globular cluster. This star, in the very metal-poor cluster ESO280-SC06 , has [\textrmN/\textrmFe] > +2.5, while the other stars in the cluster show no obvious enhancement in nitrogen. Around 80 NEMP stars are known in the field, and their abundance patterns are believed to reflect mass transfer from a binary companion in the asymptotic giant branch phase. The dense environment of globular clusters is detrimental to the long term survival of binary systems, resulting in a low observed binary fraction among red giants and the near absence of NEMP stars. We also identify the first known horizontal branch members of ESO280-SC06 , which allow for a much better constraint on its distance. We calculate an updated orbit for the cluster based on our revised distance of 20.6 ± 0.5 kpc, and find no significant change to its orbital properties.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): globular clusters: individual: ESO280-SC06

Simbad objects: 41

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Number of rows : 41

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 844 0
2 NGC 4372 GlC 12 25 45.43 -72 39 32.7   10.86 9.85     ~ 273 0
3 C 1235-509 GlC 12 38 40.20 -51 09 01.0           ~ 332 0
4 M 68 GlC 12 39 27.98 -26 44 38.6   10.26 7.96     ~ 906 0
5 M 53 GlC 13 12 55.25 +18 10 05.4   8.95 7.79     ~ 742 0
6 NGC 5053 GlC 13 16 27.09 +17 42 00.9     9.96     ~ 554 0
7 NGC 5466 GlC 14 05 27.29 +28 32 04.0   10.5 9.70     ~ 749 0
8 GCl 50 GlC 16 59 51.1 -00 32 00   15.70       ~ 171 1
9 NGC 6287 GlC 17 05 09.4907827015 -22 42 28.100632364   11.49 10.30     ~ 202 0
10 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 1943 0
11 NGC 6397 GlC 17 40 42.09 -53 40 27.6   7.39 5.17     ~ 1833 1
12 NGC 6426 GlC 17 44 54.71 +03 10 12.5           ~ 194 0
13 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12183 0
14 Gaia DR2 6719718983068881664 * 18 05 05.5278804586 -46 22 42.071761807           ~ 1 0
15 Gaia DR2 6719866626860277760 * 18 06 59.9819361798 -45 59 32.958081716           ~ 1 0
16 Gaia DR2 6719610509373516416 HB* 18 08 52.9918399402 -46 25 27.071460231           ~ 1 0
17 Gaia DR2 6719599170657398400 RG* 18 08 59.4496555547 -46 25 09.952592221           ~ 2 0
18 Gaia DR2 6719598075458648576 RG* 18 09 00.7000624677 -46 27 37.779301317           ~ 1 0
19 Gaia DR2 6719598895780907776 RG* 18 09 01.6150813984 -46 26 00.895782987           ~ 1 0
20 Gaia DR2 6719599174970284928 RG* 18 09 02.1692210932 -46 24 53.771730215           ~ 2 0
21 Gaia DR2 6719598900092253184 RG* 18 09 02.7747260273 -46 26 30.913538414           ~ 2 0
22 Gaia DR2 6719599170657413888 RG* 18 09 03.0588114657 -46 24 32.907302360           ~ 2 0
23 Gaia DR2 6719599101937916544 RG* 18 09 04.1835954766 -46 25 23.140939727           ~ 2 0
24 Gaia DR2 6719599101938996864 RG* 18 09 04.2494019663 -46 25 29.313010852           ~ 2 0
25 Gaia DR2 6719598900092257152 HB* 18 09 04.6114458384 -46 25 34.214717410           ~ 1 0
26 Gaia DR2 6719598174224943104 RG* 18 09 05.8113464060 -46 27 01.261144746           ~ 2 0
27 ESO 280-6 GlC 18 09 06.000 -46 25 24.00           ~ 37 0
28 Gaia DR2 6719598998858700032 RG* 18 09 06.3866419941 -46 25 30.036340560           ~ 2 0
29 Gaia DR2 6719599209316025728 RG* 18 09 06.4068390517 -46 25 15.518932123           ~ 2 0
30 Gaia DR2 6719599209329902720 RG* 18 09 06.7312541600 -46 25 05.940835794           ~ 2 0
31 Gaia DR2 6719599003157597184 RG* 18 09 06.8523142661 -46 25 16.044422715           ~ 1 0
32 Gaia DR2 6719598930139202816 RG* 18 09 07.1266938817 -46 26 17.573605827           ~ 2 0
33 Gaia DR2 6719599003171467520 RG* 18 09 08.2415993624 -46 25 33.190239686           ~ 1 0
34 Gaia DR2 6719599209329900032 HB* 18 09 09.2039430535 -46 24 51.043751632           ~ 1 0
35 Gaia DR2 6719598998858703744 RG* 18 09 09.2445894965 -46 25 19.223828291           ~ 2 0
36 Gaia DR2 6719598934451987328 RG* 18 09 09.7916935049 -46 26 11.672611028           ~ 2 0
37 Gaia DR2 6719556186624323456 Pe* 18 11 21.1120789991 -46 40 47.566989998           ~ 2 0
38 NGC 6624 GlC 18 23 40.51 -30 21 39.7           ~ 799 1
39 Cl Terzan 8 GlC 19 41 44.41 -33 59 58.1     11.54     ~ 272 0
40 M 15 GlC 21 29 58.33 +12 10 01.2   3       ~ 2958 0
41 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 947 0

    Equat.    Gal    SGal    Ecl

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2021.05.16-19:34:51

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