Cepheids as tracers of star formation in M 31, - I. Observations and identifications

Free access article

Issue		Astron. Astrophys. Suppl. Ser. Volume 126, Number 3, December_II 1997


Page(s)		401 - 406
DOI		http://dx.doi.org/10.1051/aas:1997394

DOI: 10.1051/aas:1997394

A&A Supplement series, Vol. 126, December II 1997, 401-406

Received November 14, 1996; accepted April 2, 1997

Cepheids as tracers of star formation in M 31^,

I. Observations and identifications

E.A. Magnier - T. Augusteijn - S. Prins - J. van Paradijs - W.H.G. Lewin

Send offprint request: E.A. Magnier: gene@astro.uva.nl

Astronomical Institute "Anton Pannekoek'', Kruislaan 403, 1098 SJ Amsterdam, The Netherlands
Center for High Energy Astrophysics, Kruislaan 403, 1098 SJ Amsterdam, The Netherlands
University of Illinois, Astronomy Dept. Bldg. 103, 1002 W. Green St., Urbana, IL 61801, U.S.A.
Astronomy Dept. 351580, University of Washington, Seattle, WA 98195, U.S.A.
Massachusetts Institute of Technology, Room 37-624, Cambridge, MA 02139, U.S.A.
European Southern Observatory, Casilla 19001, Santiago 19, Chile
Physics Department, University of Alabama in Huntsville, Huntsville, AL 35899, U.S.A.

Abstract:

Cepheid variables can be used for more than just a distance indicator. Since the age can be determined from the period, they can be used to trace the star formation history of a galaxy. We have identified 130 new Cepheid variable candidates in M 31, particularly along the spiral arm regions in the north-east of the galaxy. These areas had not been searched for Cepheids in the previous study by Baade and collaborators. The contamination of our sample by other types of variables is low (< 3%). For V < 21, the completeness is 53%. These Cepheids will be used to explore the star formation history in M 31.

keywords: (stars: variables:) Cepheids -- stars: formation -- galaxies: individual: M 31 -- galaxies: stellar content -- (cosmology:) distance scale

SIMBAD Objects
Tables at the CDS

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.

If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.