2022RNAAS...6...91L

Query : 2022RNAAS...6...91L

2022RNAAS...6...91L - Research Notes of the AAS, 6, 91 (2022/May-0)

Characteristics of the Permanent Superhumps in V533 Herculis.

LEICHTY M., GARNAVICH P., LITTLEFIELD C., BOYLE R. and MASON P.A.

Abstract (from CDS):

We analyze two sectors of Transiting Exoplanet Sky Survey (TESS) photometry of the nova-like cataclysmic variable star V533 Her. We detect a periodicity consistent with the binary orbital period and estimate a revised value of 3.53709(2) hr. We also detect a strong signal near a period of 3.8 hr that we associate with positive superhumps. The superhump frequency varies over the TESS observations with the fractional difference between the superhump and orbital periods, ϵ, ranging between 0.055 ≤ ϵ ≤ 0.080. The superhump amplitude is correlated with its frequency such that the amplitude increases as ϵ decreases. Positive superhumps result from an instability that generates an eccentric accretion disk and ϵ is a measure of the disk precession rate in the binary rest frame. The observed correlation implies that as the disk precession rate slows, the disk eccentricity increases.

Journal keyword(s): Cataclysmic variable stars - Nova-like variable stars - White dwarf stars - SU Ursae Majoris stars

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* V533 Her	No*	18 14 20.4844831200	+41 51 22.069747872		15.000	15.032	15.274		~	265	0

Query : 2022RNAAS...6...91L

Basic data :

V* V533 Her -- Classical Nova

* (GCRV,UCAC4,...), V* (1SWASP,V*,...), No* (2017ARep,NOVA), blu (2019A&A), CV* (2020MNRAS), SB* (SBC9), HS? (2019A&A), NIR (2MASS)

18 14 20.4844831200 +41 51 22.069747872 (Optical) [ 0.0198 0.0203 90 ] A 2020yCat.1350....0G

18 12 46.4295637439 +41 50 22.699383441 [ 0.0198 0.0203 90 ]

069.1887187074738 +24.2733208165350 [ 0.0198 0.0203 90 ]

0.635 1.612 [0.026 0.025 90] A 2020yCat.1350....0G

V(km/s) -40.0 [~] / z(~) -0.000133 [~] / cz -40.00 [~] E 1995A&AS..114..269D

0.7866 [0.022] A 2020yCat.1350....0G

B 15.000 [0.09] D 2012yCat.1322....0Z

V 15.032 [0.20] D 2012yCat.1322....0Z

R 15.274 [0.16] E 2012yCat.1322....0Z

G 15.048517 [0.006854] C 2022yCat.1355....0G

J 14.707 [0.032] C 2003yCat.2246....0C

H 14.653 [0.049] C 2003yCat.2246....0C

K 14.637 [0.095] C 2003yCat.2246....0C

i 14.829 [0.06] E 2012yCat.1322....0Z

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`NOVA Her 1963`	`SBC9 1036`	`UCAC4 660-064716`	`AAVSO 1811+41`
`GCRV 67967`	`1SWASP J181420.49+415122.3`	*`V V533 Her`**	`Gaia DR3 2113091615775375232`
`2MASS J18142048+4151221`	`TIC 76191504`	`WEB 15201`	`Gaia DR2 2113091615775375232`

References (265 between 1850 and 2026) (Total 265)
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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2MASS J18142048+4151221 UCAC4 660-064716 V* V533 Her Gaia DR3 2113091615775375232 Gaia DR2 2113091615775375232

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