2002ApJ...580L.151K

Query : 2002ApJ...580L.151K

2002ApJ...580L.151K - Astrophys. J., 580, L151-L155 (2002/December-1)

Discovery of 15 second oscillations in Hubble space telescope observations of WZ Sagittae following the 2001 outburst.

KNIGGE C., HYNES R.I., STEEGHS D., LONG K.S., ARAUJO-BETANCOR S. and MARSH T.R.

Abstract (from CDS):

We report the discovery of 15 s oscillations in ultraviolet observations of WZ Sagittae obtained with the Hubble Space Telescope approximately 1 month after the peak of the 2001 outburst. This is the earliest detection of oscillations in WZ Sge following an outburst and the first time that a signal near 15 s has been seen to be dominant. The oscillations are quite strong (amplitude ≃5%), but not particularly coherent. In one instance, the oscillation period changed by 0.7 s between successive observations separated by less than 1 hr. We have also found evidence for weaker signals with periods near 6.5 s in some of our data. We discuss the implications of our results for the models that have been proposed to account for the 28 s oscillations seen in quiescence. If the periods of the 15 s oscillations can be identified with the periods of revolution of material rotating about the white dwarf, the mass of the white dwarf must satisfy MWD>0.71 M☉. The corresponding limit for the 6.5 s signals is MWD>1.03 M☉.

Abstract Copyright: ∼

Journal keyword(s): Accretion, Accretion Disks - Stars: Binaries: Close - Stars: Novae, Cataclysmic Variables - Stars: Individual: Constellation Name: WZ Sagittae

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 V* WZ Sge CV* 20 07 36.5037622512 +17 42 14.733254952   15.30 15.20 10.817   D 982 0

Query : 2002ApJ...580L.151K

Basic data :
V* WZ Sge -- Cataclysmic Binary
Other object types: otypes_help 		UV (), * (CSI,GCRV,...), WD* (2023MNRAS,EGGR,...), X (2E,1ES,...), CV* (2020MNRAS), WD? (2018MNRAS), V* (V*,AAVSO), No* (NOVA), SB* (SBC9), Em* (EM*), PM* (2018yCat), blu (FB), NIR (2MASS)
ICRS coord. (ep=J2000) : 		20 07 36.5037622512 +17 42 14.733254952 (Optical) [ 0.0215 0.0171 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		20 05 20.5559859299 +17 33 30.533521971 [ 0.0215 0.0171 90 ]
Gal coord. (ep=J2000) : 		057.5366730424588 -07.9298248283750 [ 0.0215 0.0171 90 ]
Proper motions mas/yr : 		71.506 -24.329 [0.030 0.024 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 62.3 [~] / z(~) 0.000208 [~] / cz 62.31 [~]
   E 1995A&AS..114..269D
Parallaxes (mas): 		22.1035 [0.0304] A 2020yCat.1350....0G
Spectral type: 		D E 2023MNRAS.518.5106J
Fluxes (7) :
B 15.30 [~] E ~
V 15.20 [~] E ~
R 10.817 [0.90] E 2012yCat.1322....0Z
G 15.180982 [0.004340] C 2022yCat.1355....0G
J 14.862 [0.041] C 2003yCat.2246....0C
H 14.557 [0.049] C 2003yCat.2246....0C
K 13.998 [0.057] C 2003yCat.2246....0C
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Identifiers (29) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

SV* HV 3518 GCRV 70442 1RXS J200736.4+174217 WEB 17643
CSI+17-20053 2 Lan 50 SBC9 1204 3XMM J200736.5+174213
2E 4322 2MASS J20073649+1742147 TIC 86408822 AAVSO 2003+17
2E 2005.3+1733 NOVA Sge 1913 UBV 17296 Gaia DR3 1809844934461976832
EGGR 136 NOVA Sge 1946 UCAC4 539-122231 Gaia DR2 1809844934461976832
EM* CDS 1133 NOVA Sge 1978 uvby98 620020136
1ES 2005+17.5 PLX 4778 V* WZ Sge
FB 173 PLX 4778.00 WD 2003+17

References (982 between 1850 and 2026) (Total 982)
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 : 1    Distance : 3    Var : 3    Rot : 1    Fe/H : 1    Plx : 3    PM : 2    SpT : 2   

   

Observing logs
Herschel : 2    IUE : 98    XMM : 1   

   

External archives :

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

Link by name to the catalogue in VizieR :

2E 4322 Lan 50 2MASS J20073649+1742147 PLX 4778 1RXS J200736.4+174217
UCAC4 539-122231 uvby98 620020136 V* WZ Sge WD 2003+17 Gaia DR3 1809844934461976832
Gaia DR2 1809844934461976832

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