![Artist’s impression of COROT-7b, an ultra-short-period planet. [ESO/L. Calçada]](/sites/default/files/styles/news_and_events_image/public/2023-04/fig1-copy-702x336.jpg?h=ca281f02&itok=mn0R37Fq)
April 20, 2023
3:00PM - 4:00PM
In Person & Online: Chem & Biomolecular Eng & Chem (CBEC) - Room 130; Zoom Webinar
Add to Calendar
2023-04-20 15:00:00
2023-04-20 16:00:00
Astronomy Colloquium - Sarah Millholland
Title: Systems of Short-Period Exoplanets: Regularities and Anomalies
Abstract:
Exoplanetary systems containing multiple close-in, sub-Neptune-sized planets are ubiquitous, representing a dominant outcome of planet formation. These systems exhibit a striking degree of architectural regularity and uniformity, such as nearly circular and coplanar orbits, regular orbital spacings, and intra-system correlations in planetary masses and radii. Beyond this first-order structure, however, these systems also display mysterious anomalies that require explanations. This talk will address three “architectural anomalies” from both observational and theoretical perspectives. I will propose that several of these anomalies can be explained by considerations of planet-planet and planet-star dynamical interactions.
Speaker: Sarah Millholland (MIT)
In Person & Online: Chem & Biomolecular Eng & Chem (CBEC) - Room 130; Zoom Webinar
OSU ASC Drupal 8
ascwebservices@osu.edu
America/New_York
public
Date Range
Add to Calendar
2023-04-20 15:00:00
2023-04-20 16:00:00
Astronomy Colloquium - Sarah Millholland
Title: Systems of Short-Period Exoplanets: Regularities and Anomalies
Abstract:
Exoplanetary systems containing multiple close-in, sub-Neptune-sized planets are ubiquitous, representing a dominant outcome of planet formation. These systems exhibit a striking degree of architectural regularity and uniformity, such as nearly circular and coplanar orbits, regular orbital spacings, and intra-system correlations in planetary masses and radii. Beyond this first-order structure, however, these systems also display mysterious anomalies that require explanations. This talk will address three “architectural anomalies” from both observational and theoretical perspectives. I will propose that several of these anomalies can be explained by considerations of planet-planet and planet-star dynamical interactions.
Speaker: Sarah Millholland (MIT)
In Person & Online: Chem & Biomolecular Eng & Chem (CBEC) - Room 130; Zoom Webinar
Department of Astronomy
astronomy@osu.edu
America/New_York
public
Title: Systems of Short-Period Exoplanets: Regularities and Anomalies
Abstract:
Exoplanetary systems containing multiple close-in, sub-Neptune-sized planets are ubiquitous, representing a dominant outcome of planet formation. These systems exhibit a striking degree of architectural regularity and uniformity, such as nearly circular and coplanar orbits, regular orbital spacings, and intra-system correlations in planetary masses and radii. Beyond this first-order structure, however, these systems also display mysterious anomalies that require explanations. This talk will address three “architectural anomalies” from both observational and theoretical perspectives. I will propose that several of these anomalies can be explained by considerations of planet-planet and planet-star dynamical interactions.
