ASIAA Summer Students Program
ASIAA Summer Student Program 2022
July 1 - August 31

2022 Project Description

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How are orbits of planets determined?
This project can be carried out remotely.

Keywords:
Star and planet formation, ALMA, Kepler, IRTF

Supervisors

Christian Flores Gonzalez and Nagayoshi Ohashi
Find out more about supervisors on ASIAA website

Task Description and Goals

The planets in our solar system orbit the Sun in a plane almost perpendicular to the Sun’s rotation axis (obliquity ~ 6 degrees). Large and close-in exoplanets called hot Jupiters, however, show a diversity of obliquities with some of them orbiting their stars almost parallel to the stellar rotation axis. In this project, we would like to learn if the obliquities observed in these exoplanets are imprinted during the star and planet formation process or if these happen later on due to tidal events.

A student working on this project will combine different observational results acquired from radio interferometry (ALMA), space-based photometry (Keppler/K2), and spectroscopy (IRTF) to directly measure the inclination angle of stars and their planet-forming disks. The combination of these measurements will be used as a proxy for exoplanetary obliquities.

During the summer project, the student will:

  1. become familiar with concepts of star and planet formation, in addition to techniques that involve characterization of young stellar systems.
  2. use computational methods to calculate and compare stellar inclination angles and protoplanetary disk’s inclination angles.
  3. use statistical tools to assess the significance of the scientific results.

We look for a motivated student who is interested in learning about star and planet formation. The completion of this project could lead to a publication in a major scientific journal.

Required Background

Basic knowledge of python or similar programing language. English communication, reading, and writing. Basic understanding of physics and mathematics.

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