Eclipsing binaries in Local Group galaxies

R. W. Hilditch

doi:10.1007/s10509-006-9111-2

Eclipsing binaries in Local Group galaxies

R. W. Hilditch

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A review is presented of the progress that has been made in the last 3 years towards quantifying the properties of high-mass detached and semi-detached eclipsing binaries in Local Group galaxies. Comparisons between these observational results on masses, radii, temperatures and luminosities for stars in detached binaries and evolution models for single stars at the appropriate metallicity are found to be very good. New evolution models for interacting binaries passing through case A mass exchange are being calculated, and indicate a requirement for some mass loss to find agreement with the observational data. The observational data on such semi-detached systems show similar properties to those in the Milky Way galaxy. The directly-determined distances to all these eclipsing binaries are proving to be most valuable for strengthening the distance scale amongst the Local Group galaxies.

Original language	English
Pages (from-to)	203-206
Number of pages	4
Journal	Astrophysics and Space Science
Volume	304
DOIs	https://doi.org/10.1007/s10509-006-9111-2
Publication status	Published - Aug 2006

Keywords

stars : binaries : eclipsing
stars : evolution
abundances
techniques : photometric
SMALL-MAGELLANIC-CLOUD
GRAVITATIONAL LENSING EXPERIMENT
MASSIVE CLOSE BINARIES
XMM-NEWTON SURVEY
FUNDAMENTAL PARAMETERS
DIRECT PROJECT
DISTANCE
STARS
M-33
LMC

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10.1007/s10509-006-9111-2

Astrophysics at St Andrews: Astrophysics at St.Andrews
Cameron, A. C. (PI) & Horne, K. D. (CoI)
PPARC - Now STFC
1/04/06 → 31/03/11
Project: Standard

Cite this

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title = "Eclipsing binaries in Local Group galaxies",

abstract = "A review is presented of the progress that has been made in the last 3 years towards quantifying the properties of high-mass detached and semi-detached eclipsing binaries in Local Group galaxies. Comparisons between these observational results on masses, radii, temperatures and luminosities for stars in detached binaries and evolution models for single stars at the appropriate metallicity are found to be very good. New evolution models for interacting binaries passing through case A mass exchange are being calculated, and indicate a requirement for some mass loss to find agreement with the observational data. The observational data on such semi-detached systems show similar properties to those in the Milky Way galaxy. The directly-determined distances to all these eclipsing binaries are proving to be most valuable for strengthening the distance scale amongst the Local Group galaxies.",

keywords = "stars : binaries : eclipsing, stars : evolution, abundances, techniques : photometric, SMALL-MAGELLANIC-CLOUD, GRAVITATIONAL LENSING EXPERIMENT, MASSIVE CLOSE BINARIES, XMM-NEWTON SURVEY, FUNDAMENTAL PARAMETERS, DIRECT PROJECT, DISTANCE, STARS, M-33, LMC",

author = "Hilditch, {R. W.}",

year = "2006",

month = aug,

doi = "10.1007/s10509-006-9111-2",

language = "English",

volume = "304",

pages = "203--206",

journal = "Astrophysics and Space Science",

issn = "0004-640X",

publisher = "Springer",

}

TY - JOUR

T1 - Eclipsing binaries in Local Group galaxies

AU - Hilditch, R. W.

PY - 2006/8

Y1 - 2006/8

N2 - A review is presented of the progress that has been made in the last 3 years towards quantifying the properties of high-mass detached and semi-detached eclipsing binaries in Local Group galaxies. Comparisons between these observational results on masses, radii, temperatures and luminosities for stars in detached binaries and evolution models for single stars at the appropriate metallicity are found to be very good. New evolution models for interacting binaries passing through case A mass exchange are being calculated, and indicate a requirement for some mass loss to find agreement with the observational data. The observational data on such semi-detached systems show similar properties to those in the Milky Way galaxy. The directly-determined distances to all these eclipsing binaries are proving to be most valuable for strengthening the distance scale amongst the Local Group galaxies.

AB - A review is presented of the progress that has been made in the last 3 years towards quantifying the properties of high-mass detached and semi-detached eclipsing binaries in Local Group galaxies. Comparisons between these observational results on masses, radii, temperatures and luminosities for stars in detached binaries and evolution models for single stars at the appropriate metallicity are found to be very good. New evolution models for interacting binaries passing through case A mass exchange are being calculated, and indicate a requirement for some mass loss to find agreement with the observational data. The observational data on such semi-detached systems show similar properties to those in the Milky Way galaxy. The directly-determined distances to all these eclipsing binaries are proving to be most valuable for strengthening the distance scale amongst the Local Group galaxies.

KW - stars : binaries : eclipsing

KW - stars : evolution

KW - abundances

KW - techniques : photometric

KW - SMALL-MAGELLANIC-CLOUD

KW - GRAVITATIONAL LENSING EXPERIMENT

KW - MASSIVE CLOSE BINARIES

KW - XMM-NEWTON SURVEY

KW - FUNDAMENTAL PARAMETERS

KW - DIRECT PROJECT

KW - DISTANCE

KW - STARS

KW - M-33

KW - LMC

U2 - 10.1007/s10509-006-9111-2

DO - 10.1007/s10509-006-9111-2

M3 - Article

SN - 0004-640X

VL - 304

SP - 203

EP - 206

JO - Astrophysics and Space Science

JF - Astrophysics and Space Science

ER -

Eclipsing binaries in Local Group galaxies

Abstract

Keywords

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Projects

Astrophysics at St Andrews: Astrophysics at St.Andrews

Cite this