2003MNRAS.344..657M

Query : 2003MNRAS.344..657M

2003MNRAS.344..657M - Mon. Not. R. Astron. Soc., 344, 657-664 (2003/September-2)

The core/envelope symmetry in pulsating stars.

MONTGOMERY M.H., METCALFE T.S. and WINGET D.E.

Abstract (from CDS):

We demonstrate that there is an inherent symmetry in the way high-overtone stellar pulsations sample the core and the envelope, which can potentially lead to an ambiguity in the asteroseismologically derived locations of internal structures. We provide an intuitive example of the source of this symmetry by analogy with a vibrating string. For the stellar case, we focus on the white dwarf stars, establishing the practical consequences for high-order white dwarf pulsations both analytically and numerically. In addition, we verify the effect empirically by cross-fitting two different structural models, and we discuss the consequences that this approximate symmetry may have for past and present asteroseismological fits of the pulsating DBV, GD 358. Finally, we show how the signatures of composition transition zones that are brought about by physically distinct processes may be used to help alleviate this potential ambiguity in our asteroseismological interpretation of the pulsation frequencies observed in white dwarf stars.

Abstract Copyright: 2003 RAS

Journal keyword(s): methods: analytical - stars: individual: GD 358 - stars: interiors - stars: oscillations - white dwarfs

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 GD 358 WD* 16 47 18.3925183824 +32 28 32.862804384 12.511 13.530 13.653 13.752 13.852 DB2 364 0

Query : 2003MNRAS.344..657M

Basic data :
GD 358 -- White Dwarf
Other object types: otypes_help 		* (GD,ASCC,...), WD* (1969ApJ,EGGR,...), PM* (2018yCat,LSPM,...), Pu* (2012A&A), UV (GALEX,KUV,...), WD? (2018MNRAS), V* (1SWASP,V*), Opt (LAMOST,SDSS), NIR (2MASS)
ICRS coord. (ep=J2000) : 		16 47 18.3925183824 +32 28 32.862804384 (Optical) [ 0.0180 0.0212 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		16 45 25.6573222456 +32 33 47.968466886 [ 0.0180 0.0212 90 ]
Gal coord. (ep=J2000) : 		054.0752202280984 +39.1905995919506 [ 0.0180 0.0212 90 ]
Proper motions mas/yr : 		-158.955 25.438 [0.024 0.032 90] A 2020yCat.1350....0G
Parallaxes (mas): 		23.2441 [0.024] A 2020yCat.1350....0G
Spectral type: 		DB2 C 1986ApJS...61..305G
Fluxes (14) :
U 12.511 [0.0078] B 2013AJ....146..131L
B 13.530 [0.0088] B 2013AJ....146..131L
V 13.653 [0.0095] B 2013AJ....146..131L
R 13.752 [0.0086] B 2013AJ....146..131L
G 13.579940 [0.003138] C 2020yCat.1350....0G
I 13.852 [0.0081] B 2013AJ....146..131L
J 14.128 [0.028] C 2003yCat.2246....0C
H 14.206 [0.048] C 2003yCat.2246....0C
K 14.414 [0.097] C 2003yCat.2246....0C
u (AB) 14.076 [0.008] C 2015ApJS..219...12A
g (AB) 13.679 [0.003] C 2015ApJS..219...12A
r (AB) 15.653 [0.013] C 2015ApJS..219...12A
i (AB) 14.604 [0.006] C 2015ApJS..219...12A
z (AB) 14.584 [0.006] C 2015ApJS..219...12A
SIMBAD within arcmin
Overlay Simbad points in this preview
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
within arcsec sed-help-icon

Identifiers (30) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

GD 358 LAMOST J164718.38+322832.8 1SWASP J164718.40+322833.0 V* V777 Her
ASCC 595989 LSPM J1647+3228 TIC 219074038 WD 1645+32
EGGR 239 2MASS J16471839+3228328 UBV M 43078 WD 1645+325
GALEX J164718.4+322831 PG 1645+326 UCAC2 43112556 [TFW97] J164718.49+322832.62
GEN# +6.10060358 PLX 3821.01 UCAC4 613-056335 Gaia DR3 1314045729544380288
KUV 16454+3234 PM J16473+3228 USNO-B1.0 1224-00338947 Gaia DR2 1314045729544380288
KUV 433-8 SDSS J164718.37+322833.0 USNO 638
LAMOST J164718.35+322832.9 SDSS J164718.36+322832.9 uvby98 610060358 V

References (364 between 1850 and 2026) (Total 364)
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 : 4    Var : 1    Fe/H : 4    Plx : 3    PM : 4    SpT : 13   

   

Observing logs
IUE : 20   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : GD 358

Link by name to the catalogue in VizieR :

GALEX J164718.4+322831 LSPM J1647+3228 2MASS J16471839+3228328 PG 1645+326 SDSS J164718.37+322833.0
SDSS J164718.36+322832.9 UCAC2 43112556 UCAC4 613-056335 USNO-B1.0 1224-00338947 uvby98 610060358 V
V* V777 Her WD 1645+32 WD 1645+325 Gaia DR3 1314045729544380288 Gaia DR2 1314045729544380288

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 2003MNRAS.344..657M and select 'bookmark this link' or equivalent in the popup menu