Event Title

Session 2C: The Search for Hyper-Velocity Stars

Session Number

Session 2C: 1st Presentation

Advisor(s)

Dr. William Wester III, Fermilab

Location

Academic Pit

Start Date

26-4-2018 10:35 AM

End Date

26-4-2018 11:20 AM

Abstract

A hypervelocity star is a star that travels faster than the escape velocity of the gravity well of the galaxy it originated in. To create stars that travel at these speeds, the stars need to be flung out with a great deal of velocity, typically 1,000 km/s. We wanted to use new data provided by the DES camera in Chile, to attempt to discover new hypervelocity stars. The stars trajectories help scientists refine their estimates for the mass distribution of the galaxy, allowing the location of dark matter and black holes.

In order to discover these stars, sites such as the DESDM database were used to acquire data of potential HVSs (hypervelocity stars). Once we had the observed data, we then used TopCAT as launched through Cygwin in order to analyze the various aspects of the data. Through this, we sought to better understand the motion of these stars are identify potential candidates. While we do not currently have any candidates, as we are merely a first-year SIR, we are eagerly searching through both literature and high-density HVS areas in order to find one. We are hopeful that by fall we will have at least one candidate.

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Apr 26th, 10:35 AM Apr 26th, 11:20 AM

Session 2C: The Search for Hyper-Velocity Stars

Academic Pit

A hypervelocity star is a star that travels faster than the escape velocity of the gravity well of the galaxy it originated in. To create stars that travel at these speeds, the stars need to be flung out with a great deal of velocity, typically 1,000 km/s. We wanted to use new data provided by the DES camera in Chile, to attempt to discover new hypervelocity stars. The stars trajectories help scientists refine their estimates for the mass distribution of the galaxy, allowing the location of dark matter and black holes.

In order to discover these stars, sites such as the DESDM database were used to acquire data of potential HVSs (hypervelocity stars). Once we had the observed data, we then used TopCAT as launched through Cygwin in order to analyze the various aspects of the data. Through this, we sought to better understand the motion of these stars are identify potential candidates. While we do not currently have any candidates, as we are merely a first-year SIR, we are eagerly searching through both literature and high-density HVS areas in order to find one. We are hopeful that by fall we will have at least one candidate.