Analyzing white dwarf + white dwarf binaries with Gaia trigonometric parallaxes

Isabelle R Kloc; Jimmy Sargent; Natalie Moticksa; Adam Moss; Ted von Hippel; Elliot Robinson; David Stenning; David van Dyk; Elizabeth Jeffery; Kareem El-Badry; William Jefferys

Analyzing white dwarf + white dwarf binaries with Gaia trigonometric parallaxes

Isabelle R Kloc, Jimmy Sargent, Natalie Moticksa, Adam Moss, Ted von Hippel, Elliot Robinson, David Stenning, David van Dyk, Elizabeth Jeffery, Kareem El-Badry, William Jefferys

Physical Sciences

Research output: Contribution to conference › Poster › peer-review

Abstract

White dwarfs (WDs) have been used as chronometers to age date the solar neighborhood, open clusters, globular clusters, and even the Galactic halo field population. The availability of highly accurate and precise Gaia trigonometric parallaxes along with nearly all-sky, homogenous photometric surveys (SDSS, Pan-STARRS) now allows us to improve the precision in WD ages. We report on the consistency of ages among seven WD+WD binaries, run through BASE-9 individually and in pairs. BASE-9 uses Bayesian analysis to estimate the values for stellar parameters, such as age, distance, and metallicity. We found that using Gaia's parallaxes with binary systems constrains the errors in these estimations, by lowering uncertainties and constraining the ages and distances of the systems.

Original language	American English
State	Published - Apr 2019
Event	Discovery Day 2019 - Duration: Apr 1 2019 → …

Conference

Conference	Discovery Day 2019
Period	4/1/19 → …

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Analyzing white dwarf + white dwarf binaries with Gaia trigonometFinal published version, 236 KBLicense: CC BY

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@conference{8e1edfacd95747f6bdb8091ca92127a1,

title = "Analyzing white dwarf + white dwarf binaries with Gaia trigonometric parallaxes",

abstract = " White dwarfs (WDs) have been used as chronometers to age date the solar neighborhood, open clusters, globular clusters, and even the Galactic halo field population. The availability of highly accurate and precise Gaia trigonometric parallaxes along with nearly all-sky, homogenous photometric surveys (SDSS, Pan-STARRS) now allows us to improve the precision in WD ages. We report on the consistency of ages among seven WD+WD binaries, run through BASE-9 individually and in pairs. BASE-9 uses Bayesian analysis to estimate the values for stellar parameters, such as age, distance, and metallicity. We found that using Gaia's parallaxes with binary systems constrains the errors in these estimations, by lowering uncertainties and constraining the ages and distances of the systems.",

author = "Kloc, {Isabelle R} and Jimmy Sargent and Natalie Moticksa and Adam Moss and {von Hippel}, Ted and Elliot Robinson and David Stenning and {van Dyk}, David and Elizabeth Jeffery and Kareem El-Badry and William Jefferys",

year = "2019",

month = apr,

language = "American English",

note = "Discovery Day 2019 ; Conference date: 01-04-2019",

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TY - CONF

T1 - Analyzing white dwarf + white dwarf binaries with Gaia trigonometric parallaxes

AU - Kloc, Isabelle R

AU - Sargent, Jimmy

AU - Moticksa, Natalie

AU - Moss, Adam

AU - von Hippel, Ted

AU - Robinson, Elliot

AU - Stenning, David

AU - van Dyk, David

AU - Jeffery, Elizabeth

AU - El-Badry, Kareem

AU - Jefferys, William

PY - 2019/4

Y1 - 2019/4

N2 - White dwarfs (WDs) have been used as chronometers to age date the solar neighborhood, open clusters, globular clusters, and even the Galactic halo field population. The availability of highly accurate and precise Gaia trigonometric parallaxes along with nearly all-sky, homogenous photometric surveys (SDSS, Pan-STARRS) now allows us to improve the precision in WD ages. We report on the consistency of ages among seven WD+WD binaries, run through BASE-9 individually and in pairs. BASE-9 uses Bayesian analysis to estimate the values for stellar parameters, such as age, distance, and metallicity. We found that using Gaia's parallaxes with binary systems constrains the errors in these estimations, by lowering uncertainties and constraining the ages and distances of the systems.

AB - White dwarfs (WDs) have been used as chronometers to age date the solar neighborhood, open clusters, globular clusters, and even the Galactic halo field population. The availability of highly accurate and precise Gaia trigonometric parallaxes along with nearly all-sky, homogenous photometric surveys (SDSS, Pan-STARRS) now allows us to improve the precision in WD ages. We report on the consistency of ages among seven WD+WD binaries, run through BASE-9 individually and in pairs. BASE-9 uses Bayesian analysis to estimate the values for stellar parameters, such as age, distance, and metallicity. We found that using Gaia's parallaxes with binary systems constrains the errors in these estimations, by lowering uncertainties and constraining the ages and distances of the systems.

UR - https://commons.erau.edu/discovery-day/db-discovery-day-2019/poster-session/47

M3 - Poster

T2 - Discovery Day 2019

Y2 - 1 April 2019

ER -

Analyzing white dwarf + white dwarf binaries with Gaia trigonometric parallaxes

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