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Related papers: Measuring the Initial-Final Mass-Relation using wi…

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We examine the applicability of the initial-to-final mass relation (IFMR) for white dwarfs (WDs) in intermediate-separation binary systems (approximately 1 AU), using astrometric binaries identified in open clusters from Gaia DR3. A careful…

Solar and Stellar Astrophysics · Physics 2025-01-30 Oren Ironi , Sagi Ben-Ami , Na'ama Hallakoun , Sahar Shahaf

We present observational constraints on the initial-final mass relation (IFMR) using wide double white dwarfs (DWDs). We identify 65 new candidate wide DWDs within the Sloan Digital Sky Survey, bringing the number of candidate wide DWDs to…

Solar and Stellar Astrophysics · Physics 2015-12-16 Jeff J. Andrews , Marcel A. Agüeros , A. Gianninas , Mukremin Kilic , Saurav Dhital , Scott F. Anderson

The initial-final mass relation (IFMR) links a star's birth mass to the mass of its white dwarf (WD) remnant, providing key constraints on stellar evolution. Open clusters offer the most straightforward way to empirically determine the…

We use data from Gaia DR2 to constrain the initial-final mass relation (IFMR) for field stars with initial masses $0.9 \lesssim m_{\rm in}/M_{\odot} \lesssim 8$. Precise parallaxes have revealed unprecedented substructure in the white dwarf…

Solar and Stellar Astrophysics · Physics 2018-07-04 Kareem El-Badry , Hans-Walter Rix , Daniel R. Weisz

Recent studies of white dwarfs in open clusters have provided new constraints on the initial - final mass relationship (IFMR) for main sequence stars with masses in the range 2.5 - 6.5 Mo. We re-evaluate the ensemble of data that determines…

Astrophysics · Physics 2009-11-11 L. Ferrario , D. Wickramasinghe , J. Liebert , K. A. Williams

We present the initial-final mass relation (IFMR) based on the self-consistent analysis of Sirius B and 79 white dwarfs from 13 star clusters. We have also acquired additional signal on eight white dwarfs previously analyzed in the NGC 2099…

Solar and Stellar Astrophysics · Physics 2018-10-17 Jeffrey D. Cummings , Jason S. Kalirai , P. -E. Tremblay , Enrico Ramirez-Ruiz , Jieun Choi

In wide double white dwarf (DWD) binaries, in which the co-eval WDs evolve independently, the more massive, faster-evolving WD can be used to obtain a main-sequence lifetime for the less-massive WD. By converting this lifetime into an…

Solar and Stellar Astrophysics · Physics 2014-10-27 Jeff J. Andrews , Marcel A. Agüeros , Alexandros Gianninas , Mukremin Kilic , Saurav Dhital , Scott Anderson

We present observational constraints for the initial-to-final mass relation (IFMR) derived from 11 white dwarfs (WDs) in wide binaries (WBs) that contain a turnoff/subgiant primary. Because the components of WBs are coeval to a good…

Solar and Stellar Astrophysics · Physics 2022-01-05 Manuel Barrientos , Julio Chanamé

The semi-empirical initial-final mass relation (IFMR) connects spectroscopically analyzed white dwarfs in star clusters to the initial masses of the stars that formed them. Most current stellar evolution models, however, predict that stars…

Solar and Stellar Astrophysics · Physics 2019-01-30 Jeffrey D. Cummings , Jason S. Kalirai , Jieun Choi , Cyril Georgy , Pier-Emmanuel Tremblay , Enrico Ramirez-Ruiz

We have expanded the sample of observed white dwarfs in the rich open cluster NGC 2099 (M37) with the Keck Low-Resolution Imaging Spectrometer. Of 20 white dwarf candidates, the spectroscopy shows 19 to be true white dwarfs with 14 of these…

Solar and Stellar Astrophysics · Physics 2015-07-15 Jeffrey D. Cummings , Jason S. Kalirai , P. -E. Tremblay , Enrico Ramirez-Ruiz

The initial-final mass relation (IFMR) represents the total mass lost by a star during the entirety of its evolution from the zero age main sequence to the white dwarf cooling track. The semi-empirical IFMR is largely based on observations…

Solar and Stellar Astrophysics · Physics 2021-09-28 Joseph W. Barnett , Kurtis A. Williams , A. Bédard , Michael Bolte

The initial mass-final mass relationship (IFMR) of white dwarfs (WD) represents a crucial benchmark for stellar evolution models, especially for the efficiency of mixing episodes and mass loss during the asymptotic giant branch (AGB) phase.…

Solar and Stellar Astrophysics · Physics 2022-04-14 Paola Marigo

The initial-final mass relation (IFMR) of white dwarfs (WDs) plays an important role in stellar evolution. To derive precise estimates of IFMRs and explore how they may vary among star clusters, we propose a Bayesian hierarchical model that…

Solar and Stellar Astrophysics · Physics 2018-07-18 Shijing Si , Ted von Hippel , Elliot Robinson , Elizabeth Jeffery , David C. Stenning , David A. van Dyk

The initial-final mass relation represents a mapping between the mass of a white dwarf remnant and the mass that the hydrogen burning main-sequence star that created it once had. The relation thus far has been constrained using a sample of…

We have observed a sample of 10 white dwarf candidates in the rich open cluster NGC 2323 (M50) with the Keck Low-Resolution Imaging Spectrometer. The spectroscopy shows eight to be DA white dwarfs, with six of these having high S/N…

Solar and Stellar Astrophysics · Physics 2016-02-17 Jeffrey D. Cummings , Jason S. Kalirai , P. -E. Tremblay , Enrico Ramirez-Ruiz

The initial-final mass relation (IFMR) plays a crucial role in understanding stellar structure and evolution by linking a star's initial mass to the mass of the resulting white dwarf. This study explores the IFMR in the initial mass range…

Solar and Stellar Astrophysics · Physics 2024-03-18 Francesco Addari , Paola Marigo , Alessandro Bressan , Guglielmo Costa , Kendall Shepherd , Guglielmo Volpato

We present an initial-final mass relation derived from the spectroscopically-complete volume-limited 40 pc sample of white dwarfs. The relation is modelled using population synthesis methods to derive an initial stellar population which can…

Solar and Stellar Astrophysics · Physics 2023-10-25 Tim Cunningham , Pier-Emmanuel Tremblay , Mairi O'Brien

We have carried out a search for massive white dwarfs (WDs) in the direction of young open star clusters using the Gaia DR2 database. The aim of this survey was to provide robust data for new and previously known high-mass WDs regarding…

Solar and Stellar Astrophysics · Physics 2021-05-26 Harvey B. Richer , Ilaria Caiazzo , Helen Du , Steffani Grondin , James Hegarty , Jeremy Heyl , Ronan Kerr , David R. Miller , Sarah Thiele

We revisit the properties and astrophysical implications of the field white dwarf mass distribution in preparation of Gaia applications. Our study is based on the two samples with the best established completeness and most precise…

Solar and Stellar Astrophysics · Physics 2016-07-27 P. -E. Tremblay , J. Cummings , J. S. Kalirai , B. T. Gaensicke , N. Gentile-Fusillo , R. Raddi

We present the initial-final mass relation derived from 10 white dwarfs in wide binaries that consist of a main sequence star and a white dwarf. The temperature and gravity of each white dwarf was measured by fitting theoretical model…

Solar and Stellar Astrophysics · Physics 2015-06-03 Jingkun Zhao , Terry D. Oswalt , Lee Anne Willson , Qian Wang , Gang Zhao
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