Publications (16)
A new basis for eigenmodes on the Sphere
M. Lachieze-Rey
The usual spherical harmonics form a basis of the vector space (of dimension ) of the eigenfunctions of the Laplacian on the sphere, with e…
EROS VARIABLE STARS : FUNDAMENTAL-MODE AND FIRST OVERTONE CEPHEIDS IN THE BAR OF THE LARGE MAGELLANIC CLOUD
J. P. Beaulieu, P. Grison, W. Tobin +27
We present CCD phase-binned light curves at 490 nm for 97 Cepheid variable stars in the bar of the LMC. The photometry was obtained as part of the French EROS project and has excel…
SEARCH FOR VERY LOW MASS OBJECTS IN THE GALACTIC HALO
EROS collaboration, E. Aubourg, P. Bareyre +26
We present results from a search for gravitational microlensing of stars in the Large Magellanic Cloud by low mass objects in the Galactic Halo. The search uses the CCD light curve…
V/Vmax statistic and Neo-Classic Cosmological Tests
L. Van Waerbeke, G. Mathez, Y. Mellier +2
A new cosmological test is derived, based on the distribution of individual V/Vmax in a complete redshift-limited sample of distant objects. The fundamental assumption is that, in…
Connections and Frame Bundle Reductions
M. Lachieze-Rey
In general relativity, the gravitational potential is represented by the Levi-Civita connection, the only symmetric connection preserving the metric. On a differentiable manifold,…
About the Malmquist bias in the determination of H0 and of distances of galaxies
R. Triay, M. Lachieze-Rey, S. Rauzy
We provide the mathematical framework which elucidates the way of using a Tully-Fisher (TF) like relation in the determination of the Hubble constant , as well as for distance…