2005A&A...439..309P


Query : 2005A&A...439..309P

2005A&A...439..309P - Astronomy and Astrophysics, volume 439, 309-315 (2005/8-3)

Abundances from disentangled component spectra: the eclipsing binary V578 Mon.

PAVLOVSKI K. and HENSBERGE H.

Abstract (from CDS):

Chemical abundances of the early-B type components of the binary V578 Mon are derived from disentangled component spectra. This is a pilot study showing that, even with moderately high line-broadening, metal abundances can be derived from disentangled spectra with a precision of 0.1dex, differential to sharp-lined single stars of the same spectral type. This binary is well-suited to such an assessment because of its youth as a member of the Rosette Nebula cluster NGC 2244, strengthening the expectation of an unevolved ZAMS chemical composition. The method is useful for studying rotationally driven mixing in main-sequence stars, since fundamental stellar parameters are known with higher accuracy in (eclipsing) binaries. This paper also evaluates of the bias that might be present in disentangled spectra.

Abstract Copyright:

Journal keyword(s): techniques: spectroscopic - stars: abundances - stars: binaries: spectroscopic - stars: individual: V578 Mon (HDE 259135) - open clusters and associations: individual: NGC 2244

Simbad objects: 11

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Number of rows : 11
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 M 42 HII 05 35 01.5 -05 26 24           ~ 3953 0
2 NAME Ori A MoC 05 38 -07.1           ~ 2881 0
3 HD 259012A Y*O 06 31 33.465 +04 50 39.75 8.89 9.399 9.270 9.43 9.10 B1Vn 41 0
4 HD 259012 ** 06 31 33.4677 +04 50 39.699 8.94 9.59 9.38     B1Vn+B4/A1Ve 48 0
5 HD 259105 * 06 31 52.0018444848 +04 55 57.252934128 8.88 9.57 9.38     B1V 60 0
6 V* V578 Mon EB* 06 32 00.6076651296 +04 52 40.886334120 8.01 8.72 8.55 8.09 8.28 B0V+B1V 105 0
7 LS VI +04 12 * 06 32 06.1360004063 +04 52 15.352618809 9.21 9.84 9.71     B1III 56 0
8 HD 46202 ** 06 32 10.4728 +04 57 59.818 7.60 8.36 8.19 7.98 7.86 O9.2V 270 0
9 NGC 2244 OpC 06 32 11 +04 54.8           ~ 600 1
10 NAME Rosette Nebula HII 06 32 26.76 +04 47 37.1           ~ 474 1
11 NGC 2244 334 Y*O 06 32 51.7919732079 +04 47 16.160568228 13.17 13.38 12.95 12.46 12.34 ~ 38 0

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2022.11.29-13:12:46

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