scholarly journals The Initial–Final Mass Relation for Hydrogen-deficient White Dwarfs*

2021 ◽  
Vol 162 (4) ◽  
pp. 162
Author(s):  
Joseph W. Barnett ◽  
Kurtis A. Williams ◽  
A. Bédard ◽  
Michael Bolte
Keyword(s):  
White Dwarfs ◽  
Mass Relation ◽  
Final Mass

scholarly journals Ensemble evolutionary studies of white dwarfs in open star clusters

2019 ◽  
Vol 15 (S357) ◽  
pp. 179-183
Author(s):  
Kurtis A Williams
Keyword(s):  
White Dwarfs ◽  
Binary Star ◽  
Open Cluster ◽  
Star Clusters ◽  
Mass Relation ◽  
Correlated Errors ◽  
Open Star Clusters ◽  
Open Star ◽  
Final Mass ◽  
Evolutionary Studies

AbstractWhite dwarfs (WDs) in open star clusters are a highly useful ensemble of stars. While numerous researchers use open cluster WDs to study the initial-final mass relation, numerous other evolutionary studies are also enabled by this sample of stars, including searches for stochastic mass loss, studies of binary star evolution, and measurements of metallicity impacts on WD formation and evolution. However, it is crucial to use astrometric data such as proper motions to remove contaminating field WDs from open cluster samples; multi-epoch ground based imaging is needed for most open cluster WDs. Also, the strongly correlated errors in the initial mass - final mass plane must be considered; we illustrate the importance of this consideration using a large open cluster WD sample and Monte Carlo techniques.

scholarly journals CONSTRAINTS ON THE INITIAL-FINAL MASS RELATION FROM WIDE DOUBLE WHITE DWARFS

2015 ◽  
Vol 815 (1) ◽  
pp. 63 ◽  
Author(s):  
Jeff J. Andrews ◽  
Marcel A. Agüeros ◽  
A. Gianninas ◽  
Mukremin Kilic ◽  
Saurav Dhital ◽  
...  
Keyword(s):  
White Dwarfs ◽  
Mass Relation ◽  
Final Mass

scholarly journals Constraints on stellar evolution by observation of white dwarfs

1984 ◽  
Vol 105 ◽  
pp. 229-230 ◽  
Author(s):  
V. Weidemann
Keyword(s):  
White Dwarfs ◽  
Recent Observation ◽  
Open Cluster ◽  
High Mass ◽  
Mass Relation ◽  
List Type ◽  
Intermediate Mass Stars ◽  
Final Mass ◽  
Star Production ◽  
The Rich

The recent observation of white dwarfs in the open cluster NGC 2516 and the determination of their surface gravity and effective temperatures (Reimers and Koester, 1982) has enabled the establishment of the initial-final mass relation for low and intermediate mass stars which was published a few months ago and is presented here (Fig. 1 of Weidemann and Koester, 1983a). The most important conclusions drawn are: 1.The limiting mass for white dwarf progenitors is 8–9 M⊙ rather than 5–6 M⊙, with supernova production beyond;2.The rather flat run of the initial-final mass relation in the main range of star production, 1–5 M⊙, explains the observed narrow mass distribution of white dwarfs and central stars of planetary nebulae around 0.6 M⊙;3.High mass white dwarfs exist, as shown in the rich, young cluster NGC 2516, but are extremely rare in general.

Testing white dwarf cosmochronology using wide double white dwarfs

2019 ◽  
Vol 15 (S357) ◽  
pp. 197-201
Author(s):  
Tyler Heintz ◽  
JJ Hermes
Keyword(s):  
White Dwarf ◽  
White Dwarfs ◽  
Mass Relation ◽  
Final Mass ◽  
Gaia Dr2

AbstractWe present a sample of nearly 650 widely separated double white dwarf binaries found using Gaia DR2 astrometry. We derive preliminary total ages for each white dwarf in our sample using Gaia photometry and compare the total ages of both components of each binary in our sample. We find agreement within 3 sigma between the two ages ∼85% of the time with median age uncertainties of ∼3.5 Gyr depending on which initial-final mass relation is used. When a subsample with the most precise ages is used, the agreement within 3 sigma drops to ∼70% with median age uncertainties of 300-600 Myr.

scholarly journals New Praesepe white dwarfs and the initial mass–final mass relation

2006 ◽  
Vol 369 (1) ◽  
pp. 383-389 ◽  
Author(s):  
P. D. Dobbie ◽  
R. Napiwotzki ◽  
M. R. Burleigh ◽  
M. A. Barstow ◽  
D. D. Boyce ◽  
...  
Keyword(s):  
White Dwarfs ◽  
Initial Mass ◽  
Mass Relation ◽  
Final Mass

scholarly journals INITIAL–FINAL MASS RELATION FOR 3 TO 4M⊙PROGENITORS OF WHITE DWARFS FROM THE SINGLE CLUSTER NGC 2099

2015 ◽  
Vol 807 (1) ◽  
pp. 90 ◽  
Author(s):  
Jeffrey D. Cummings ◽  
Jason S. Kalirai ◽  
P.-E. Tremblay ◽  
Enrico Ramirez-Ruiz
Keyword(s):  
White Dwarfs ◽  
Mass Relation ◽  
Final Mass ◽  
Single Cluster

scholarly journals An Empirical Measurement of the Initial–Final Mass Relation with Gaia White Dwarfs

2018 ◽  
Vol 860 (2) ◽  
pp. L17 ◽  
Author(s):  
Kareem El-Badry ◽  
Hans-Walter Rix ◽  
Daniel R. Weisz
Keyword(s):  
White Dwarfs ◽  
Mass Relation ◽  
Final Mass ◽  
Empirical Measurement

scholarly journals Asymptotic Giant Branch Evolution and the Initial-Final Mass Relation of Single CO White Dwarfs

2011 ◽  
Vol 7 (S281) ◽  
pp. 36-43
Author(s):  
Paola Marigo
Keyword(s):  
Mass Loss ◽  
White Dwarfs ◽  
Asymptotic Giant Branch ◽  
Mass Relation ◽  
Evolutionary Models ◽  
Agb Stars ◽  
Intermediate Mass ◽  
Intermediate Mass Stars ◽  
Final Mass ◽  
The Impact

AbstractCombining recent mass determinations of Galactic CO white dwarfs and their progenitors with the latest evolutionary models for Asymptotic Giant Branch (AGB) stars, I review the initial-final mass relation (IFMR) of low- and intermediate-mass stars. In particular, I analyze the impact on the IFMR produced by a few critical processes characterizing the AGB phase, namely: the second and third dredge-up events, hot-bottom burning, and mass loss. Their dependence on metallicity and related theoretical uncertainties are briefly discussed.

scholarly journals TWO MASSIVE WHITE DWARFS FROM NGC 2323 AND THE INITIAL–FINAL MASS RELATION FOR PROGENITORS OF 4–6.5M⊙

2016 ◽  
Vol 818 (1) ◽  
pp. 84 ◽  
Author(s):  
Jeffrey D. Cummings ◽  
Jason S. Kalirai ◽  
P.-E. Tremblay ◽  
Enrico Ramirez-Ruiz
Keyword(s):  
White Dwarfs ◽  
Mass Relation ◽  
Final Mass
Sign in / Sign up

Export Citation Format

Share Document