2023JAVSO..51..111M

Query : 2023JAVSO..51..111M

2023JAVSO..51..111M - J. Am. Assoc. Variable star obs., 51, 111 (2023)

Photometric Observations and Period Analysis of an SU UMa-type Dwarf Nova, MASTER OT J004527.52+503213.8.

MATSUI S.A., TAKEUCHI T.T., KONO K.T. and COORAY S.

Abstract (from CDS):

MASTER OT J004527.52+503213.8 (hereafter MASTER J004527) is a dwarf nova discovered by the MASTER project in 2013. At 18:20 UTC on 24 October 2020, brightening of this object was reported to vsnet-alert (24843 by Denisenko). This was the second report of a superoutburst after its discovery. Photometric observations were made using the 23.5-cm Schmidt-Cassegrain telescope at Okayama University of Science observatory soon after the alert through 4 November 2020. In this work, we present the photometric data from our observation, and the analysis of the light curves of MASTER J004527 during the 2020 outburst. We propose a method to determine the period of superhumps by polynomial fitting, which can be applied to a light curve with many missing data. In addition to our own data, we incorporate other all sky survey data of the outburst to better understand the properties of the superhumps. Based on our observations, we conclude that MASTER J004527 is an SU UMa-type dwarf nova, since no early superhumps occurred.

Abstract Copyright: ∼

Journal keyword(s):

Status at CDS : Objects in title, abstract, text, figures, and all or part of small table(s) being processed in SIMBAD.

Simbad objects: 1

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	GALEX J004527.5+503215	CV*	00 45 27.5376379584	+50 32 15.180190656		19.7		19.9		DC:	11	0

Query : 2023JAVSO..51..111M

Basic data :

GALEX J004527.5+503215 -- Cataclysmic Binary

CV* (2013ATel), * (USNO,Gaia), WD* (2024A&A), CV? (2021AJ), UV (GALEX), ev (ZTF)

00 45 27.5376379584 +50 32 15.180190656 (Optical) [ 0.1276 0.1208 90 ] A 2020yCat.1350....0G

00 42 38.2918107863 +50 15 51.956823347 [ 0.1276 0.1208 90 ]

121.9595706500066 -12.3229090804881 [ 0.1276 0.1208 90 ]

11.371 -6.675 [0.160 0.140 90] A 2020yCat.1350....0G

2.6646 [0.2235] A 2020yCat.1350....0G

DC: E 2024A&A...682A...5V

B 19.7 [~] E 2003AJ....125..984M

R 19.9 [~] E 2003AJ....125..984M

G 18.940004 [0.006565] C 2020yCat.1350....0G

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`GALEX J004527.5+503215`	`USNO-B1.0 1405-00020846`	`Gaia DR3 414816050347695872`
`MASTER OT J004527.52+503213.8`	`ZTF18abtyikp`	`Gaia DR2 414816050347695872`

References (11 between 1850 and 2026) (Total 11)
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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Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

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GALEX J004527.5+503215 USNO-B1.0 1405-00020846 Gaia DR3 414816050347695872 Gaia DR2 414816050347695872

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