The Strange Case of OGLE-SMC-ECL-0277

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F17%3A00485042" target="_blank" >RIV/67985815:_____/17:00485042 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/17:10367917 RIV/00216224:14310/17:00098476

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The Strange Case of OGLE-SMC-ECL-0277

Original language description

The eclipsing system OGLE-SMC-ECL-0277 was found to exhibit unusual photometric variability. Beside its eclipsing nature additional variations with the periodicity of about 1500 d are also seen. Variations of the eclipse depth during the time span of the observational data (mainly taken from the OGLE survey, partly our new ones) are the most pronounced. The complex behavior of all these changes makes this system absolutely unique, no such variability was ever detected and studied in other systems before. Hence, are there some new phenomena, new physics or an unknown effects playing a role? We tried to understand these variations using four different hypotheses (i.e., inclination change, spot evolution, and/or pulsation of one or both components) and comparing their results we discussed which of them is the most likely. Neither of the presented hypotheses is able to describe in detail the behavior of OGLE-SMC-ECL-0277. We also discuss a possibility that the variable can be a member of the so-called double periodic variables group.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Acta Astronomica

ISSN

0001-5237

e-ISSN

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Volume of the periodical

67

Issue of the periodical within the volume

3

Country of publishing house

PL - POLAND

Number of pages

13

Pages from-to

243-255

UT code for WoS article

000417556300003

EID of the result in the Scopus database

2-s2.0-85035356788