Galactic Kinematic and Thermodynamic Properties from Hyper Velocity Stars

Jeffrey M. La Fortune presents a physically-based thermodynamic model of the Galaxy derived from high-resolution kinematical data of the inner stellar halo. The dataset interprets the distribution of Hyper Velocity Stars (HVS) as a manifestation of the Maxwell-Boltzmann probability distribution for a virialized galactic system. It links an observed mid-disk velocity peak with a most probable velocity of 432 km/s and suggests the HVS population originates at a Galactic virialization radius of 23 kpc.

Use Cases

• Modeling galactic thermodynamics based on the Maxwell-Boltzmann distribution described.
• Analyzing Hyper Velocity Star (HVS) origins and distributions based on the proposed virialization radius of 23 kpc.
• Studying stellar kinematics based on the high-resolution kinematical data from the inner stellar halo.
• Testing theories of galactic quasi-equilibrium based on the observed velocity distribution.

Strengths

• Model is based on high-resolution kinematical data.
• Specific physical parameters are provided, including a most probable velocity of 432 km/s and a virialization radius of 23 kpc.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Jeffrey M. La Fortune

Collection Method

Derived from high-resolution kinematical data from the inner stellar halo.

Geography

The Galaxy (Milky Way)