2022RNAAS...6..244B

Query : 2022RNAAS...6..244B

2022RNAAS...6..244B - Research Notes of the AAS, 6, 244 (2022/November-0)

Gaia Astrometry Challenges the High Central Oxygen Abundance Claimed for the Pulsating Helium-Atmosphere White Dwarf KIC 08626021.

BELL K.J.

Abstract (from CDS):

The asteroseismic radius determination previously reported for the pulsating helium-atmosphere white dwarf star KIC 08626021 is 6σ discrepant with constraints from Gaia astrometry. This calls into question the other results of the asteroseismic analysis, especially the high (central) oxygen abundance that stellar evolutionary models have been unable to reproduce.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Asteroseismology - Astrometry - Astronomical methods - Stellar cores - White dwarf stars

Simbad objects: 1

goto Full paper

goto View the references in ADS

Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 GALEX J192904.6+444708 WD* 19 29 04.6788742824 +44 47 09.028359420   18.3   18.5   DB 48 0

Query : 2022RNAAS...6..244B

Basic data :
GALEX J192904.6+444708 -- White Dwarf
Other object types: otypes_help 		WD? (2018MNRAS), * (KIC,USNO,...), WD* (2011ApJ), Pu* (2011ApJ), UV (GALEX)
ICRS coord. (ep=J2000) : 		19 29 04.6788742824 +44 47 09.028359420 (Optical) [ 0.0991 0.1035 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		19 27 32.2467654082 +44 40 53.356574357 [ 0.0991 0.1035 90 ]
Gal coord. (ep=J2000) : 		077.0883302958931 +12.5884010568524 [ 0.0991 0.1035 90 ]
Proper motions mas/yr : 		-2.697 -19.731 [0.131 0.134 90] A 2020yCat.1350....0G
Parallaxes (mas): 		2.6461 [0.112] A 2020yCat.1350....0G
Spectral type: 		DB D 2011ApJ...736L..39O
Fluxes (3) :
B 18.3 [~] E 2003AJ....125..984M
R 18.5 [~] E 2003AJ....125..984M
G 18.495893 [0.003286] C 2020yCat.1350....0G
SIMBAD within arcmin
Overlay Simbad points in this preview
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
within arcsec sed-help-icon

Identifiers (6) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

GALEX J192904.6+444708 USNO-B1.0 1347-00336170 Gaia DR3 2126582035039121280
KIC 8626021 EQ J1929+4447 Gaia DR2 2126582035039121280

References (48 between 1850 and 2026) (Total 48)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Collections of Measurements Description of Measurements

Distance : 2    Fe/H : 1    Plx : 2    PM : 2    SpT : 2   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Link by name to the catalogue in VizieR :

GALEX J192904.6+444708 KIC 8626021 USNO-B1.0 1347-00336170 Gaia DR3 2126582035039121280 Gaia DR2 2126582035039121280

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

The annotation server is currently not available. Sorry for any inconvenience

To bookmark this query, right click on this link: simbad:objects in 2022RNAAS...6..244B and select 'bookmark this link' or equivalent in the popup menu