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| Query : 2012MNRAS.426L..31S |
2012MNRAS.426L..31S - Mon. Not. R. Astron. Soc., 426, L31-L35 (2012/October-2)
A CH star in the globular cluster NGC 6426.
SHARINA M., ARINGER B., DAVOUST E., KNIAZEV A.Y. and DONZELLI C.J.
Abstract (from CDS):
We report on the serendipitous discovery of a carbon star near the centre of the low-metallicity globular cluster NGC 6426. We determined its membership and chemical properties using medium-resolution spectra. The radial velocity of -159 km/s makes it a member of the cluster. We used photometric data from the literature and the COMARCS stellar atmospheric models to derive its luminosity, effective temperature, surface gravity, metallicity, and approximate C, N and O abundance ratios. According to these properties, we suggest that this star is a genuine carbon-rich low-metallicity asymptotic giant branch star.
Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS
Journal keyword(s): stars: carbon - globular clusters: individual: NGC 6426
CDS comments: in introduction, GRO 70 is a misprint for RGO 70.
Simbad objects: 12
| Number of rows : 12 |
| 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 | HD 5223 | SB* | 00 54 13.6098985200 | +24 04 01.515842760 | 9.87 | 8.47 | C-H2IIIb: | 126 | 0 | |||
| 2 | CD-30 338 | PM* | 01 05 59.6729307912 | -29 48 40.365327888 | 13.27 | 12.60 | 12.68 | ~ | 9 | 0 | ||
| 3 | V* V Ari | LP? | 02 15 00.0771848760 | +12 14 23.612094312 | 10.8 | 9.80 | C-H3.5 | 113 | 0 | |||
| 4 | NGC 5139 | GlC | 13 26 47.28 | -47 28 46.1 | ~ | 3677 | 0 | |||||
| 5 | * gam Ser | PM* | 15 56 27.1826577018 | +15 39 41.809580382 | 4.31 | 4.34 | 3.84 | 3.37 | 3.13 | F6V | 586 | 0 |
| 6 | M 14 | GlC | 17 37 36.15 | -03 14 45.3 | 9.55 | 5.73 | ~ | 420 | 0 | |||
| 7 | Cl* NGC 6402 CHM 1 | LP* | 17 37 36.942 | -03 14 53.16 | 17.024 | 15.021 | 12.349 | ~ | 5 | 0 | ||
| 8 | NGC 6426 | GlC | 17 44 54.71 | +03 10 12.5 | ~ | 244 | 0 | |||||
| 9 | 2MASS J17445505+0310098 | LP? | 17 44 55.0575606528 | +03 10 09.906768804 | 15.76 | 14.21 | 14.89 | ~ | 2 | 0 | ||
| 10 | HD 172958 | * | 18 41 41.3115616992 | +31 37 03.402903360 | 6.355 | 6.416 | B8V | 63 | 0 | |||
| 11 | [TI98] 2229+1902 | C* | 22 31 53.0131172520 | +19 17 41.060739696 | C-N | 11 | 0 | |||||
| 12 | * 42 Peg | PM* | 22 41 27.7207176 | +10 49 52.907917 | 3.10 | 3.33 | 3.41 | 3.43 | 3.50 | B8.5IV | 320 | 0 |
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