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…
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…
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…
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…
Cosmic magnetic fields – as observed in the Universe, in galactic dynamos, and in the Milky Way
- J. Vallée
- Physics
- 1 September 2004
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…
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…
Constraining the pitch angle of the Galactic spiral arms in the Milky Way
- J. Vallée
- Physics
- 15 September 2017
A guided map to the spiral arms in the galactic disk of the Milky Way
- J. Vallée
- Physics
- 2 October 2017
Abstract An up-to-date overview of the recent history is given, aiming is to present a helpful working guide to the literature and at the same time introduce key systems and observational results,…
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