2001MNRAS.326..621N

Query : 2001MNRAS.326..621N

2001MNRAS.326..621N - Mon. Not. R. Astron. Soc., 326, 621-627 (2001/September-2)

Spectroscopic evidence for the binary nature of AM CVn.

NELEMANS G., STEEGHS D. and GROOT P.J.

Abstract (from CDS):

We analysed archival spectroscopic data of AM CVn taken with the William Herschel Telescope in 1996. In the literature two orbital periods for AM CVn are proposed. A clear S-wave in the Hei 4471, 4387 and 4143Å lines is revealed when the spectra are folded on the 1029-s period. No signature of this S-wave is seen when folded on 1051s. Doppler tomography of the line profiles shows a clear signature of the hotspot. Using this we can constrain the value of K2 to lie between 210 and 280km.s–1. Our work confirms the binary nature of AM CVn beyond any doubt, establishes 1028.73s as the true orbital period and supports the interpretation of AM CVn as a permanent superhump system.

Abstract Copyright: The Royal Astronomical Society

Journal keyword(s): accretion, accretion discs - binaries: close - binaries: spectroscopic - stars: individual: AM CVn - novae, cataclysmic variables

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* AM CVn CV* 12 34 54.6231062664 +37 37 44.120620056   14.02 14.13 14.47   DBnnp 434 0

Query : 2001MNRAS.326..621N

Basic data :
V* AM CVn -- Cataclysmic Binary
Other object types: otypes_help 		* (CSI,FBS,...), WD* (2021ApJS,EGGR,...), blu (2019A&A,CBS,...), CV* (2014A&A), V* (V*,AAVSO), X (2XMM,3XMM), Opt (LAMOST,SDSS), CV? (2015MNRAS), HS? (2019A&A), Em* (2023ApJS), PM* (PM), UV (PG), NIR (2MASS)
ICRS coord. (ep=J2000) : 		12 34 54.6231062664 +37 37 44.120620056 (Optical) [ 0.0221 0.0211 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		12 32 28.3169525177 +37 54 14.712460225 [ 0.0221 0.0211 90 ]
Gal coord. (ep=J2000) : 		140.2342719153391 +78.9381844062195 [ 0.0221 0.0211 90 ]
Proper motions mas/yr : 		30.869 12.431 [0.024 0.033 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -359.75 [26.38] / z(spectroscopic) -0.001199 [0.000088] / cz -359.53 [26.38]
   (Opt) E 2023ApJS..264...17Z
Parallaxes (mas): 		3.3106 [0.0303] A 2020yCat.1350....0G
Spectral type: 		DBnnp D 1966ApJ...144..496G
Fluxes (12) :
B 14.02 [0.01] E 2012yCat.1322....0Z
V 14.13 [0.01] E 2012yCat.1322....0Z
R 14.47 [0.16] E 2012yCat.1322....0Z
G 14.0806 [0.0021] C 2018yCat.1345....0G
J 14.482 [0.033] C 2003yCat.2246....0C
H 14.443 [0.047] C 2003yCat.2246....0C
K 14.646 [0.069] C 2003yCat.2246....0C
u (AB) 13.663 [0.004] B 2012ApJS..203...21A
g (AB) 14.229 [0.003] B 2012ApJS..203...21A
r (AB) 14.255 [0.004] B 2012ApJS..203...21A
i (AB) 17.959 [0.020] C 2012ApJS..203...21A
z (AB) 14.804 [0.005] B 2012ApJS..203...21A
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Identifiers (27) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

EGGR 91 HZ 29 SDSS J123454.63+373744.2 WD 1232+37
CBS 354 LAMOST J123454.61+373744.1 TIC 321453404 2XMM J123454.6+373743
CSI+37-12324 LAMOST J123454.67+373744.8 UBV 11300 3XMM J123454.6+373744
FBS B 91 2MASS J12345460+3737440 UCAC2 45005054 AAVSO 1229+38
FBS 1232+379 PG 1232+379 UCAC4 639-046599 Gaia DR3 1519860699806445184
GEN# +6.20020091 PLX 2900.02 uvby98 620020091 V Gaia DR2 1519860699806445184
GSC 03018-02523 PM J12349+3737 V* AM CVn

References (434 between 1850 and 2026) (Total 434)
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 : 1    Plx : 3    PM : 3    SpT : 6   

   

Observing logs
IUE : 14    XMM : 2   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V* AM CVn

Link by name to the catalogue in VizieR :

FBS B 91 FBS 1232+379 GSC 03018-02523 2MASS J12345460+3737440 PG 1232+379
SDSS J123454.63+373744.2 UCAC2 45005054 UCAC4 639-046599 uvby98 620020091 V V* AM CVn
WD 1232+37 Gaia DR3 1519860699806445184 Gaia DR2 1519860699806445184

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