2015MNRAS.448..601B

Query : 2015MNRAS.448..601B

2015MNRAS.448..601B - Mon. Not. R. Astron. Soc., 448, 601-605 (2015/March-3)

HST+COS spectra of the double white dwarf CSS 41177 place the secondary inside the pulsational instability strip.

BOURS M.C.P., MARSH T.R., GANSICKE B.T. and PARSONS S.G.

Abstract (from CDS):

We present Hubble Space Telescope + Cosmic Origins Spectrograph (HST+COS) data of the eclipsing double white dwarf binary CSS 41177. Due to the temperature difference between the two white dwarfs, the HST+COS far-ultraviolet data are dominated by the hot, primary white dwarf and allow us to precisely measure its temperature (T1). Using eclipse observations, we also tightly constrain the temperature of the cooler secondary white dwarf (T2). Our results, where T1 = 22 439±59 K and T2 = 10 876±32 K, with the uncertainties being purely statistical, place the secondary inside and close to the blue edge of the empirical instability strip for low-temperature hydrogen-atmosphere white dwarfs. Dedicated high-speed photometry is encouraged to probe for the presence of pulsations, which will constrain the border of the instability strip as well as probe a new region of low gravity within the strip.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): techniques: spectroscopic - binaries: eclipsing - stars: individual: SDSS J100559.10+224932.3 - white dwarfs

Simbad objects: 1

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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 J100559.1+224932 WD* 10 05 59.1154061304 +22 49 32.311886664           DA+DA 59 0

Query : 2015MNRAS.448..601B

Basic data :
GALEX J100559.1+224932 -- White Dwarf
Other object types: otypes_help 		WD* (2011MNRAS,WD), WD? (2019MNRAS), EB* (2011ApJ,[PMG2011]), Opt (LAMOST,SDSS), Em* (2023ApJS), * (Gaia), UV (GALEX)
ICRS coord. (ep=J2000) : 		10 05 59.1154061304 +22 49 32.311886664 (Optical) [ 0.0896 0.0927 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		10 03 11.7961588388 +23 04 10.666338678 [ 0.0896 0.0927 90 ]
Gal coord. (ep=J2000) : 		210.1290662789890 +52.4242928024808 [ 0.0896 0.0927 90 ]
Proper motions mas/yr : 		-20.929 -13.022 [0.111 0.117 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 80.89 [3.32] / z(spectroscopic) 0.000270 [0.000011] / cz 80.90 [3.32]
   (Opt) C 2023ApJS..264...17Z
Parallaxes (mas): 		2.3014 [0.119] A 2020yCat.1350....0G
Spectral type: 		DA+DA D 2011ApJ...735L..30P
Fluxes (6) :
G 17.448915 [0.003050] C 2020yCat.1350....0G
u (AB) 17.306 [0.009] C 2015ApJS..219...12A
g (AB) 17.266 [0.005] C 2015ApJS..219...12A
r (AB) 17.616 [0.006] C 2015ApJS..219...12A
i (AB) 17.906 [0.008] C 2015ApJS..219...12A
z (AB) 18.146 [0.024] C 2015ApJS..219...12A
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Identifiers (11) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

WD 1003+230 SDSS J100559.10+224932.1 SDSS J100559.10+224932.3 Gaia DR3 630042840143559168
GALEX J100559.1+224932 SDSS J100559.10+224932.2 TIC 840220096 Gaia DR2 630042840143559168
LAMOST J100559.10+224932.3 SDSS J100559.11+224932.3 [PMG2011] CSS 41177

References (59 between 1850 and 2026) (Total 59)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 9    Distance : 3    Fe/H : 11    Plx : 4    PM : 3    SpT : 11   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : GALEX J100559.1+224932

Link by name to the catalogue in VizieR :

WD 1003+230 GALEX J100559.1+224932 SDSS J100559.10+224932.1 SDSS J100559.10+224932.2 SDSS J100559.11+224932.3
SDSS J100559.10+224932.3 Gaia DR3 630042840143559168 Gaia DR2 630042840143559168

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