Zobrazeno 1 - 10
of 47
pro vyhledávání: '"A.-M. Gontier"'
Autor:
M. Ibos, C. Beck, A. Debard, M. Gontier, M. Alvarez, M. Grare, J. Jouglen, N. Reina, P. Mansat, P. Delobel
Publikováno v:
Médecine et Maladies Infectieuses Formation. 2:S179
Publikováno v:
Journal of Hospital Infection. 80:310-315
Summary Aim To determine the number of deaths associated with nosocomial infection (NI) occurring in French hospitals, and to evaluate the role of hospital mortality reviews in assessing the preventability of NI-associated death. Methods The study co
Autor:
Francois Taris, S. Bouquillon, A. M. Gontier, Mathieu Baudin, C. Barache, Jean Souchay, Daniel Suchet, E. F. Arias, C. Le Poncin-Lafitte, Sébastien Lambert, A. H. Andrei
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2009, 494, pp.799-815. ⟨10.1051/0004-6361:200809602⟩
Astronomy and Astrophysics-A&A, 2009, 494, pp.799-815. ⟨10.1051/0004-6361:200809602⟩
International audience; Context: The very large and increasing number of quasars reckoned from various sky surveys leads to a large quantity of data which brings various and inhomogeneous information in the fields of astrometry, photometry, radioastr
Autor:
S. B. Lambert, A.-M. Gontier
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2009, 493, pp.317-323. ⟨10.1051/0004-6361:200810582⟩
Astronomy and Astrophysics-A&A, 2009, 493, pp.317-323. ⟨10.1051/0004-6361:200810582⟩
International audience; Context: The most accurate realization of a quasi inertial reference frame, the International Celestial Reference Frame (ICRF), is made of 212 defining extragalactic radio sources whose coordinates are determined using VLBI ob
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2006, 452, pp.1107-1112. ⟨10.1051/0004-6361:20054581⟩
Astronomy and Astrophysics-A&A, 2006, 452, pp.1107-1112. ⟨10.1051/0004-6361:20054581⟩
International audience; In preparation for the evolution of the definition of the VLBI-based International Celestial Reference Frame (ICRF), various elements of the analysis strategy are investigated, such as reference source selection and the impact
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2005, 438, pp.1141-1148. ⟨10.1051/0004-6361:20042209⟩
Astronomy and Astrophysics-A&A, 2005, 438, pp.1141-1148. ⟨10.1051/0004-6361:20042209⟩
International audience; The consideration of time stability of extragalactic radio sources observed by VLBI is shown to allow the realisation of more consistent celestial reference frames. The impact on the estimation of precession and nutation compo
Autor:
A. L. Fey, Patrick Charlot, A. M. Gontier, C. Ma, Daniel MacMillan, Jinling Li, Christopher S. Jacobs, E. F. Arias, M. Feissel-Vernier
Publikováno v:
The Astronomical Journal
The Astronomical Journal, 2004, 127, pp.3587-3608. ⟨10.1086/420998⟩
The Astronomical Journal, 2004, 127, pp.3587-3608. ⟨10.1086/420998⟩
International audience; We use very long baseline interferometry data obtained between mid-1995 and the end of 2002 May together with older data to extend and revise the International Celestial Reference Frame (ICRF). Revised positions of ICRF candid
Autor:
C. Ma, A. L. Fey, A. M. Gontier, Ojars J. Sovers, B.A. Archinal, Christopher S. Jacobs, Patrick Charlot, T. M. Eubanks, E. F. Arias
Publikováno v:
Advances in Space Research. 30:185-193
The International Celestial Reference Frame, is the basis for measurements from space geodesy and astrometry. It is defined by the positions of compact extragalactic radio sources measured by Very Long Baseline Interferometry and became the fundament
Publikováno v:
Astronomy & Astrophysics. 375:661-669
The qualication and the maintenance of the International Celestial Reference Frame (ICRF) source directions are currently based on global statistics regarding the complete data set of VLBI observations of extra- galactic radio sources. The founding h
Autor:
T. M. Eubanks, B. A. Archinal, A. M. Gontier, A. L. Fey, E. F. Arias, Ojars J. Sovers, Patrick Charlot, Chopo Ma, Christopher S. Jacobs
Publikováno v:
The Astronomical Journal. 116:516-546
A quasi-inertial reference frame is defined based on the radio positions of 212 extragalactic sources distributed over the entire sky. The positional accuracy of these sources is better than about 1 mas in both coordinates. The radio positions are ba