Calendar

Sep
20
Wed
Colloquium PhD Defense: Jean McKeever
Sep 20 @ 3:00 pm – 4:15 pm
Colloquium PhD Defense: Jean McKeever @ Business College 103

Asteroseismology of Red Giants: The Detailed Modeling of Red Giants in Eclipsing Binary Systems

Jean McKeever, NMSU

Asteroseismology is an invaluable tool that allows one to peer into the inside of a star and know its fundamental stellar properties with relative ease. There has been much exploration of solar-like oscillations within red giants with recent advances in technology, leading to new innovations in observing. The Kepler mission, with its 4-year observations of a single patch of sky, has opened the floodgates on asteroseismic studies. Binary star systems are also an invaluable tool for their ability to provide independent constraints on fundamental stellar parameters such as mass and radius. The asteroseismic scaling laws link observables in the light curves of stars to the physical parameters in the star, providing a unique tool to study large populations of stars quite easily. In this work we present our 4-year radial velocity observing program to provide accurate dynamical masses for 16 red giants in eclipsing binary systems. From this we find that asteroseismology overestimates the mass and radius of red giants by 15% and 5% respectively. We further attempt to model the pulsations of a few of these stars using stellar evolution and oscillation codes. The goal is to determine which masses are correct and if there is a physical cause for the discrepancy in asteroseismic masses. We find there are many challenges to modeling evolved stars such as red giants and we address a few of the major concerns. These systems are some of the best studied systems to date and further exploration of their asteroseismic mysteries is inevitable.

 

Dec
4
Mon
Pizza Lunch: Karen Kinemuchi
Dec 4 @ 12:30 pm – 1:30 pm
Pizza Lunch: Karen Kinemuchi @ AY 119

Life at Apache Point Observatory

Jan
27
Mon
Pizza Lunch: Candace Gray
Jan 27 @ 12:30 pm – 1:30 pm
Pizza Lunch: Candace Gray @ AY 119

APO Open House Info

Candace Gray

Jan
30
Thu
Astronomy on Tap
Jan 30 @ 7:00 pm – 9:30 pm
Astronomy on Tap @ Bosque Brewing Las Cruces Public House

Join us for the inaugural Las Cruces chapter of Astronomy on Tap! Join local astronomers from the NMSU Astronomy Department for a night of fun, accessible space-related presentations, games, and prizes.

Please RSVP on the Bosque Brewing website if you’re planning on attending!
https://www.bosquebrewing.com/bosque-brewing-events

Feb
6
Thu
Colloquium: RESERVED
Feb 6 @ 3:15 pm – 4:15 pm
Colloquium: RESERVED @ BX102

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Colloquium Speaker Name, Affiliation

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Feb
10
Mon
Pizza lunch: Jon Holtzman
Feb 10 @ 12:30 pm – 1:30 pm
Pizza lunch: Jon Holtzman @ AY 119

pyvista: a data reduction framework

Jon Holtzman, NMSU

Feb
11
Tue
Remote Colloquium: RESERVED
Feb 11 @ 3:00 pm – 4:00 pm
Remote Colloquium: RESERVED @ MH 85

Colloquium Title

Colloquium Speaker Name, Affiliation

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Feb
12
Wed
Remote Colloquium: RESERVED
Feb 12 @ 3:00 pm – 4:00 pm
Remote Colloquium: RESERVED @ MH 85

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Colloquium Speaker Name, Affiliation

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Feb
13
Thu
Colloquium: RESERVED
Feb 13 @ 3:15 pm – 4:15 pm
Colloquium: RESERVED @ BX102

Colloquium Title

Colloquium Speaker Name, Affiliation

Abstract text

Feb
17
Mon
Pizza lunch: Melissa Rice and Casey Dreyer
Feb 17 @ 12:30 pm – 1:30 pm
Pizza lunch: Melissa Rice and Casey Dreyer @ AY 119

Mars Science and Space Policy

Melissa Rice, Western Washington University

Casey Dreyer, Planetary Society