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- Publications
- Influence
NEW VELOCIMETRY AND REVISED CARTOGRAPHY OF THE SPIRAL ARMS IN THE MILKY WAY—A CONSISTENT SYMBIOSIS
- J. Vallée
- Physics
- 6 March 2008
Recent advances in the determinations of the positions (pitch angle, shape, numbers, interarm separation) and velocities (rotation curve) of the spiral arms are evaluated and compared to previous… Expand
The Spiral Arms and Interarm Separation of the Milky Way: An Updated Statistical Study
- J. Vallée
- Physics
- 1 August 2005
Measurements of the spiral arms (their pitch angle, number, shape, and the interarm separation) in the Milky Way have been published in the period from 1980 to early 2005, using different methods… Expand
Recent advances in the determination of some Galactic constants in the Milky Way
- J. Vallée
- Physics
- 15 March 2017
Here we statistically evaluate recent advances in determining the Sun-Galactic Center distance (Rsun$R_{\mathit{sun}}$) as well as recent measures of the orbital velocity around the Galactic Center… Expand
Cosmic magnetic fields – as observed in the Universe, in galactic dynamos, and in the Milky Way
- J. Vallée
- Physics
- 1 September 2004
Abstract Cosmic magnetism has that exotic “Je ne sais quoi”! Magnetism has been observed in various objects, located near the edge of the Universe and all the way down to the Milky Way's center. The… Expand
The Milky Way's Spiral Arms Traced by Magnetic Fields, Dust, Gas, and Stars
- J. Vallée
- Physics
- 1 November 1995
THE SPIRAL ARMS OF THE MILKY WAY: THE RELATIVE LOCATION OF EACH DIFFERENT ARM TRACER WITHIN A TYPICAL SPIRAL ARM WIDTH
- J. Vallée
- Physics
- 23 May 2014
From the Sun's location in the Galactic disk, different arm tracers (CO, H I, hot dust, etc.) have been employed to locate a tangent to each spiral arm. Using all various and different observed… Expand
Automated registration of dynamic MR images for the quantification of myocardial perfusion
- L. M. Bidaut, J. Vallée
- Medicine
- Journal of magnetic resonance imaging : JMRI
- 1 April 2001
Cardiac dynamic magnetic resonance imaging (MRI) after contrast media injection suffers from motion induced by free breathing during acquisition. This work presents an automated approach for motion… Expand
A Cool Filament Crossing the Warm Protostar DR 21(OH): Geometry, Kinematics, Magnetic Vectors, and Pressure Balance
Here we made multiconstituent (gas/dust/field), homogeneous maps of a length of a vertical filament including DR 21(OH) proper. We observed at a radial velocity around -3.5 km s-1 the 12CO, 13CO, and… Expand
Metastudy of the Spiral Structure of Our Home Galaxy
- J. Vallée
- Physics
- 10 February 2002
The current maps of the Milky Way disk still have large differences, much like early maps of the Earth's continents made in the 16th century had sizeable differences in the locations of continents… Expand
CATALOG OF OBSERVED TANGENTS TO THE SPIRAL ARMS IN THE MILKY WAY GALAXY
- J. Vallée
- Physics
- 16 September 2014
From the Sun's location in the Galactic disk, one can use different arm tracers (CO, H I, thermal or ionized or relativistic electrons, masers, cold and hot dust, etc.) to locate a tangent to each… Expand