Uncovering new white dwarf–open cluster associations using Gaia
DR3

J 2023

Uncovering new white dwarf–open cluster associations using Gaia DR3

PRIŠEGEN, Michal a Nikola FALTOVÁ

Základní údaje

Originální název

Uncovering new white dwarf–open cluster associations using Gaia DR3

Autoři

PRIŠEGEN, Michal (703 Slovensko, domácí) a Nikola FALTOVÁ (203 Česká republika, domácí)

Vydání

Astronomy and Astrophysics, EDP Sciences, 2023, 0004-6361

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Francie

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL arXiv

Impakt faktor

Impact factor: 6.500 v roce 2022

Kód RIV

RIV/00216224:14310/23:00134381

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1051/0004-6361/202245706

UT WoS

001083944300002

Klíčová slova anglicky

white dwarfs; open clusters and associations: general; catalogs; surveys

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 18. 1. 2024 10:32, Mgr. Marie Šípková, DiS.

Anotace

V originále

Context. Open clusters (OCs) provide homogeneous samples of white dwarfs (WDs) with known distances, extinctions, and total ages. The unprecedented astrometric precision of Gaia allows us to identify many novel OC-WD pairs. Studying WDs in the context of their parent OCs makes it possible to determine the properties of WD progenitors and study the initial-final mass relation (IFMR).Aims. We seek to find potential new WD members of OCs in the solar vicinity. The analysis of OC members' parallaxes allows us to determine the OC distances to a high precision, which in turn enables us to calculate WD masses and cooling ages and to constrain the IFMR.Methods. We searched for new potential WD members of nearby OCs using the density-based machine learning clustering algorithm HDBSCAN. The clustering analysis was applied in five astrometric dimensions - positions in the sky, proper motions and parallaxes, and in three dimensions where the positional information was not considered in the clustering analysis. The identified candidate OC WDs were further filtered using the photometric criteria and properties of their putative host OCs. The masses and cooling ages of the WDs were calculated via a photometric method using all available Gaia, Pan-STARRS, SDSS, and GALEX photometry. The WD progenitor masses were determined using the ages and metallicities of their host OCs.Results. Altogether, 63 OC WD candidates were recovered, 27 of which are already known in the literature. We provide characterization for 36 novel WDs that have significant OC membership probabilities. Six of them fall into relatively unconstrained sections of the IFMR where the relation seems to exhibit nonlinear behavior. We were not able to identify any WDs originating from massive progenitors that would even remotely approach the widely adopted WD progenitor mass limit of 8 M-circle dot; this confirms the paucity of such objects residing in OCs and hints at a presence of velocity kicks for nascent WDs.

Návaznosti

GA23-07605S, projekt VaV

Název: Osud galaktických otevřených hvězdokup

Investor: Grantová agentura ČR, Osud galaktických otevřených hvězdokup

Citovat

PRIŠEGEN, Michal a Nikola FALTOVÁ. Uncovering new white dwarf–open cluster associations using Gaia DR3. Astronomy and Astrophysics. EDP Sciences, 2023, roč. 678, October, s. 1-15. ISSN 0004-6361. Dostupné z: https://dx.doi.org/10.1051/0004-6361/202245706.

@article{2362420,
   author = {Prišegen, Michal and Faltová, Nikola},
   article_number = {October},
   doi = {http://dx.doi.org/10.1051/0004-6361/202245706},
   keywords = {white dwarfs; open clusters and associations: general; catalogs; surveys},
   language = {eng},
   issn = {0004-6361},
   journal = {Astronomy and Astrophysics},
   title = {Uncovering new white dwarf–open cluster associations using Gaia DR3},
   url = {https://doi.org/10.1051/0004-6361/202245706},
   volume = {678},
   year = {2023}
}

TY  - JOUR
ID  - 2362420
AU  - Prišegen, Michal - Faltová, Nikola
PY  - 2023
TI  - Uncovering new white dwarf–open cluster associations using Gaia DR3
JF  - Astronomy and Astrophysics
VL  - 678
IS  - October
SP  - 1-15
EP  - 1-15
PB  - EDP Sciences
SN  - 00046361
KW  - white dwarfs
KW  - open clusters and associations: general
KW  - catalogs
KW  - surveys
UR  - https://doi.org/10.1051/0004-6361/202245706
N2  - Context. Open clusters (OCs) provide homogeneous samples of white dwarfs (WDs) with known distances, extinctions, and total ages. The unprecedented astrometric precision of Gaia allows us to identify many novel OC-WD pairs. Studying WDs in the context of their parent OCs makes it possible to determine the properties of WD progenitors and study the initial-final mass relation (IFMR).Aims. We seek to find potential new WD members of OCs in the solar vicinity. The analysis of OC members' parallaxes allows us to determine the OC distances to a high precision, which in turn enables us to calculate WD masses and cooling ages and to constrain the IFMR.Methods. We searched for new potential WD members of nearby OCs using the density-based machine learning clustering algorithm HDBSCAN. The clustering analysis was applied in five astrometric dimensions - positions in the sky, proper motions and parallaxes, and in three dimensions where the positional information was not considered in the clustering analysis. The identified candidate OC WDs were further filtered using the photometric criteria and properties of their putative host OCs. The masses and cooling ages of the WDs were calculated via a photometric method using all available Gaia, Pan-STARRS, SDSS, and GALEX photometry. The WD progenitor masses were determined using the ages and metallicities of their host OCs.Results. Altogether, 63 OC WD candidates were recovered, 27 of which are already known in the literature. We provide characterization for 36 novel WDs that have significant OC membership probabilities. Six of them fall into relatively unconstrained sections of the IFMR where the relation seems to exhibit nonlinear behavior. We were not able to identify any WDs originating from massive progenitors that would even remotely approach the widely adopted WD progenitor mass limit of 8 M-circle dot; this confirms the paucity of such objects residing in OCs and hints at a presence of velocity kicks for nascent WDs.
ER  -

PRIŠEGEN, Michal a Nikola FALTOVÁ. Uncovering new white dwarf–open cluster associations using Gaia DR3. \textit{Astronomy and Astrophysics}. EDP Sciences, 2023, roč.~678, October, s.~1-15. ISSN~0004-6361. Dostupné z: https://dx.doi.org/10.1051/0004-6361/202245706.

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