Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Cepheid observations by long-baseline interferometry with FLUOR/IOTA

[+] Author Affiliations
Pierre Kervella

European Southern Observatory (Germany)

Vincent Coude du Foresto

Observatoire de Paris-Meudon (France)

Wesley A. Traub, Marc G. Lacasse

Harvard-Smithsonian Ctr. for Astrophysics (USA)

Proc. SPIE 4006, Interferometry in Optical Astronomy, 551 (July 5, 2000); doi:10.1117/12.390252
Text Size: A A A
From Conference Volume 4006

  • Interferometry in Optical Astronomy
  • Pierre J. Lena; Andreas Quirrenbach
  • Munich, Germany | March 27, 2000

abstract

We report interferometric observations of the classical galactic Cepheid (zetz) Gem with FLUOR (Fiber Linked Unit for Optical Recombination), installed at the IOTA (Infrared Optical Telescope Array) interferometer. Thanks to the high precision of the visibility measurements with FLUOR, it has been possible to estimate its mean uniform disk angular diameter to a relative precision of 5% ((theta) ud equals 1.98 +/- 0.09 mas). Variations of the angular diameter of (zetz) Gem were marginally detected, with an amplitude of (Delta) (theta) ud equals 0.38 +/- 0.23 mas, but further observations should allow a more precise estimation of this value. The feasibility of the observation of Cepheids with the VLTI is also evaluated. When in operation, the VLTI will allow the precise measurement of the angular diameters of a large number of Cepheids. The zero point of the period- luminosity relation could then be set with a precision of less than 0.1 mag.

© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Pierre Kervella ; Vincent Coude du Foresto ; Wesley A. Traub and Marc G. Lacasse
"Cepheid observations by long-baseline interferometry with FLUOR/IOTA", Proc. SPIE 4006, Interferometry in Optical Astronomy, 551 (July 5, 2000); doi:10.1117/12.390252; http://dx.doi.org/10.1117/12.390252


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.