1998A&A...332..681H


Query : 1998A&A...332..681H

1998A&A...332..681H - Astronomy and Astrophysics, volume 332, 681-685 (1998/4-2)

The carbon abundance in main-sequence B-type stars towards the Galactic anti-centre.

HIBBINS R.E., DUFTON P.L., SMARTT S.J. and ROLLESTON W.R.J.

Abstract (from CDS):

Differential carbon abundances (based on the C II doublet at 6580Å) are presented for eight early type stars, towards the Galactic anti-centre. All the stars have similar atmospheric parameters with effective temperatures in the range 25000-29000K and surface gravities between logg=3.9-4.3dex. The derived photospheric abundances vary by up to 0.6dex, and with the exception of one star, RLWT-41, the differential abundances are found to be closely correlated with those of nitrogen. This implies that both elements may have been formed by similar mechanisms and that the lack of correlation between the nitrogen and oxygen abundances previously found in this sample is not directly due to CNO-processed core material being mixed to the stellar surface.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: atmospheres - stars: early-type - Galaxy: abundances

CDS comments: Table 1 : S208-6 = CL* Waterloo 1 MFJ 6, Bo-1a and NGC 1893a not identified

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 Cl* Waterloo 1 MFJ 6 * 04 18 39.5059766568 +52 50 55.048178364 12.97 13.28 12.65     B1.5V 14 0
2 NGC 1893 OpC 05 22 54 +33 26.6   7.90 7.5     ~ 245 0
3 NAME Gal Anticenter reg 05 46 +28.9           ~ 809 0
4 RL 13 * 06 00 40.4142783264 +25 28 26.832600120 13 13.48 13.00     B0/3V 14 0
5 LS V +23 21 V* 06 05 04.9924510416 +23 40 33.282806988 11.3 11.70 11.38 11.35   B1.5V 20 0
6 C 0622+198 OpC 06 25 18 +19 46.8   8.08 7.9     ~ 48 1
7 ALS 18674 * 06 38 27.0 +00 44 36 14.47 14.87 14.22     B0V 10 0
8 ALS 18679 * 06 45 45.4 -07 18 28 12.26 12.87 12.66     B0V 10 0
9 ALS 18681 * 06 45 50.3 -07 19 32 13.19 13.79 13.58     B1.5V 10 0
10 BD-00 1491 * 06 55 17.3702541384 -00 33 40.933212948 11.66 12.31 11.17     B0V 19 0

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2022.05.22-08:42:35

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