Possible candidates for multiple occurrence of variable stars
in the VSX catalogue

J 2015

Possible candidates for multiple occurrence of variable stars in the VSX catalogue

LIŠKA, Jiří; Marek SKARKA; Reinhold Friedrich AUER; Zdeněk PRUDIL; Anna JURÁŇOVÁ et al.

Základní údaje

Originální název

Possible candidates for multiple occurrence of variable stars in the VSX catalogue

Autoři

LIŠKA, Jiří; Marek SKARKA; Reinhold Friedrich AUER; Zdeněk PRUDIL a Anna JURÁŇOVÁ

Vydání

Open European Journal on Variable Stars, Sekce pozorovatelů proměnných hvězd České astronomické společnosti, 2015, 1801-5964

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/15:00082607

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

variable stars; catalogue; VSX; identification; duplicates

Štítky

AKR, rivok

Změněno: 31. 3. 2015 10:33, Mgr. Marek Skarka, Ph.D.

Anotace

V originále

A paper about variable stars with possible multiple occurrence in the VSX catalogue is presented. Our main criteria for identification of such duplicities were the angular distance among stars (below 1 arcmin) and close periods of objects. In our approach, we also considered double or half values of periods to reveal possible misclassification among stars with similar light curve shapes. The probability of false identification is expressed by the parameter R giving the relative difference between periods. We found 1487 pairs of stars in angular distance lower than 1 arcmin with period difference R lower than 0.1 %, which are high-probable candidates on duplicates. From this sample, 354 pairs have exactly the same periods (R = 0.0 %) and should be considered as definite duplicates. The main contribution of certain duplicates comes from the Catalina Sky Survey (73 pairs have two names with CSS acronym) and from the BEST projects (71 pairs). Distribution of identified duplicates on the sky is not homogeneous but contains surprising depression in Galactic plane.

Návaznosti

LH14300, projekt VaV

Název: Výzkum zvláštních proměnných hvězd

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Výzkum zvláštních proměnných hvězd

Citovat

LIŠKA, Jiří; Marek SKARKA; Reinhold Friedrich AUER; Zdeněk PRUDIL a Anna JURÁŇOVÁ. Possible candidates for multiple occurrence of variable stars in the VSX catalogue. Open European Journal on Variable Stars. Sekce pozorovatelů proměnných hvězd České astronomické společnosti, 2015, roč. 2015, č. 170, s. 1-11. ISSN 1801-5964.

@article{1231956,
   author = {Liška, Jiří and Skarka, Marek and Auer, Reinhold Friedrich and Prudil, Zdeněk and Juráňová, Anna},
   article_number = {170},
   keywords = {variable stars; catalogue; VSX; identification; duplicates},
   language = {eng},
   issn = {1801-5964},
   journal = {Open European Journal on Variable Stars},
   title = {Possible candidates for multiple occurrence of variable stars in the VSX catalogue},
   url = {http://var.astro.cz/oejv/oejv.php?oejv=170},
   volume = {2015},
   year = {2015}
}

TY  - JOUR
ID  - 1231956
AU  - Liška, Jiří - Skarka, Marek - Auer, Reinhold Friedrich - Prudil, Zdeněk - Juráňová, Anna
PY  - 2015
TI  - Possible candidates for multiple occurrence of variable stars in the VSX catalogue
JF  - Open European Journal on Variable Stars
VL  - 2015
IS  - 170
SP  - 1-11
EP  - 1-11
PB  - Sekce pozorovatelů proměnných hvězd České astronomické společnosti
SN  - 18015964
KW  - variable stars
KW  - catalogue
KW  - VSX
KW  - identification
KW  - duplicates
UR  - http://var.astro.cz/oejv/oejv.php?oejv=170
N2  - A paper about variable stars with possible multiple occurrence in the VSX catalogue is presented. Our main criteria for identification of such duplicities were the angular distance among stars (below 1 arcmin) and close periods of objects. In our approach, we also considered double or half values of periods to reveal possible misclassification among stars with similar light curve shapes. The probability of false identification is expressed by the parameter R giving the relative difference between periods. We found 1487 pairs of stars in angular distance lower than 1 arcmin with period difference R lower than 0.1 %, which are high-probable candidates on duplicates. From this sample, 354 pairs have exactly the same periods (R = 0.0 %) and should be considered as definite duplicates. The main contribution of certain duplicates comes from the Catalina Sky Survey (73 pairs have two names with CSS acronym) and from the BEST projects (71 pairs). Distribution of identified duplicates on the sky is not homogeneous but contains surprising depression in Galactic plane.
ER  -

LIŠKA, Jiří; Marek SKARKA; Reinhold Friedrich AUER; Zdeněk PRUDIL a Anna JURÁŇOVÁ. Possible candidates for multiple occurrence of variable stars in the VSX catalogue. \textit{Open European Journal on Variable Stars}. Sekce pozorovatelů proměnných hvězd České astronomické společnosti, 2015, roč.~2015, č.~170, s.~1-11. ISSN~1801-5964.

Přehled o publikaci