A propos de l’Anémie Infectieuse des Equidés et du test de Coggins

Goret Pierre, Toma Bernard. A propos de l’anémie infectieuse des Equidés et du test de Coggins. In: Bulletin de l'Académie Vétérinaire de France tome 126 n°3, 1973. pp. 135-137

Etude expérimentale de la maladie de Talfan en France. Isolement et identification du Virus

Richard Y., Toma Bernard, Goret Pierre. Étude expérimentale de la maladie de Talfan en France. Isolement et identification du virus. In: Bulletin de l'Académie Vétérinaire de France tome 126 n°2, 1973. pp. 73-81

Re-evaluation of cosmic ray cutoff terminology

The study of cosmic ray access to locations inside the geomagnetic field has evolved in a manner that has led to some misunderstanding and misapplication of the terminology originally developed to describe particle access. This paper presents what is believed to be a useful set of definitions for cosmic ray cutoff terminology for use in theoretical and experimental cosmic ray studies

La Maladie de Teschen existe-t-elle en France ?

Goret Pierre, Toma Bernard, Parodi A., Wyers . La maladie de Teschen existe-t-elle en France ?. In: Bulletin de l'Académie Vétérinaire de France tome 122 n°4, 1969. pp. 157-161

Sérodiagnostic de l’anémie infectieuse des équidés par précipitation en gélose. II. Premiers résultats d’une enquête épidémiologique en France

Toma Bernard, Luka Iskander G. E., Goret Pierre. Sérodiagnostic de l’anémie infectieuse des équidés par précipitation en gélose. II. Premiers résultats d'une enquête épidémiologique en France. In: Bulletin de l'Académie Vétérinaire de France tome 124 n°9, 1971. pp. 415-426

Sérodiagnostic de l’anémie infectieuse des équidés par précipitation en gélose. I. Mise au point de la technique

Toma Bernard, Luka Iskander G. E., Goret Pierre. Sérodiagnostic de l’anémie infectieuse des équidés par précipitation en gélose. I. Mise au point de la technique. In: Bulletin de l'Académie Vétérinaire de France tome 124 n°9, 1971. pp. 403-413

A propos d’un cas de Maladie d’Aujeszky chez le porc dans les Côtes-du-Nord

Toma B., Le Turdu Y., Le Gentil P., Métianu Tibérius, Goret Pierre. A propos d’un cas de maladie d’Aujeszky chez le porc dans les Côtes-du-Nord. In: Bulletin de l'Académie Vétérinaire de France tome 122 n°4, 1969. pp. 149-155

The CAT Imaging Telescope for Very-High-Energy Gamma-Ray Astronomy

The CAT (Cherenkov Array at Themis) imaging telescope, equipped with a very-high-definition camera (546 fast phototubes with 0.12 degrees spacing surrounded by 54 larger tubes in two guard rings) started operation in Autumn 1996 on the site of the former solar plant Themis (France). Using the atmospheric Cherenkov technique, it detects and identifies very high energy gamma-rays in the range 250 GeV to a few tens of TeV. The instrument, which has detected three sources (Crab nebula, Mrk 421 and Mrk 501), is described in detail.Comment: 24 pages, 15 figures. submitted to Elsevier Preprin

Spectrum and Variability of Mrk501 as observed by the CAT Imaging Telescope

The CAT Imaging Telescope has observed the BL Lac object Markarian 501 between March and August 1997. We report here on the variability over this time including several large flares. We present also preliminary spectra for all these data, for the low emission state, and for the largest flare.Comment: 4 pages, 4 figures, Late

Very High Energy Gamma-ray spectral properties of Mrk 501 from CAT Cerenkov telescope observations in 1997

The BL Lac object Mrk 501 went into a very high state of activity during 1997, both in VHE gamma-rays and X-rays. We present here results from observations at energies above 250 GeV carried out between March and October 1997 with the CAT Cerenkov imaging Telescope. The average differential spectrum between 30 GeV and 13 TeV shows significant curvature and is well represented by phi_0 * E_TeV^{-(alpha + beta*log10(E_TeV))}, with: phi_0 = 5.19 +/- 0.13 {stat} +/- 0.12 {sys-MC} +1.66/-1.04 {sys-atm} * 10^-11 /cm^2/s/TeV alpha = 2.24 +/- 0.04 {stat} +/- 0.05 {sys} beta = 0.50 +/- 0.07 {stat} (negligible systematics). The TeV spectral energy distribution of Mrk 501 clearly peaks in the range 500 GeV-1 TeV. Investigation of spectral variations shows a significant hardness-intensity correlation with no measurable effect on the curvature. This can be described as an increase of the peak TeV emission energy with intensity. Simultaneous and quasi-simultaneous CAT VHE gamma-ray and BeppoSAX hard X-ray detections for the highest recorded flare on 16th April and for lower-activity states of the same period show correlated variability with a higher luminosity in X-rays than in gamma-rays. The observed spectral energy distribution and the correlated variability between X-rays and gamma-rays, both in amplitude and in hardening of spectra, favour a two-component emission scheme where the low and high energy components are attributed to synchrotron and inverse Compton (IC) radiation, respectively.Comment: Submitted to Astronomy and Astrophysics, 8 pages including 6 figures. Published with minor change