Two new Blazhko stars: XZ UMi and VX Scl

SKARKA, Marek, Jakub DOLINSKÝ, Jakub JURYŠEK, Kateřina HOŇKOVÁ, Martin MAŠEK, Jiří LIŠKA and Miloslav ZEJDA. Two new Blazhko stars: XZ UMi and VX Scl. Information Bulletin on Variable Stars. Konkoly Observatorium, 2016, vol. 2016, No 6160, p. 1-6. ISSN 1587-2440.

Basic information

• Original name: Two new Blazhko stars: XZ UMi and VX Scl
• Authors: SKARKA, Marek (203 Czech Republic, guarantor), Jakub DOLINSKÝ (703 Slovakia, belonging to the institution), Jakub JURYŠEK (203 Czech Republic), Kateřina HOŇKOVÁ (203 Czech Republic), Martin MAŠEK (203 Czech Republic), Jiří LIŠKA (203 Czech Republic, belonging to the institution) and Miloslav ZEJDA (203 Czech Republic, belonging to the institution).
• Edition: Information Bulletin on Variable Stars, Konkoly Observatorium, 2016, 1587-2440.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10308 Astronomy
• Country of publisher: Hungary
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• RIV identification code: RIV/00216224:14310/16:00089584
• Organization unit: Faculty of Science
• Keywords in English: RR Lyr; Blazhko effect
• Tags: AKR, rivok

Abstract

A brief report about a discovery of modulation in two RRab Lyrae stars XZ UMi and VX Scl is presented. The suspicion of modulation comes from our observations, but the modulation periods (41.1 d for XZ UMi and 67.3 d for VX Scl) were estimated based on the analysis of NSVS (XZ UMi) and SuperWASP data (VX Scl). Both stars show indications of period change. The peaks close to the basic pulsation frequency of VX Scl could be the signs of possible double modulation.

Links

• LH14300, research and development project: Name: Výzkum zvláštních proměnných hvězd

Investor: Ministry of Education, Youth and Sports of the CR

• MUNI/A/1110/2014, interní kód MU: Name: Pokročilé problémy astrofyziky, teoretické fyziky a fyzikálního vzdělávání

Investor: Masaryk University, Category A