Long-term activity of QU Car

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F17%3A00480922" target="_blank" >RIV/67985815:_____/17:00480922 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/17:00314155

Výsledek na webu

<a href="http://dx.doi.org/10.1002/asna.201713316" target="_blank" >http://dx.doi.org/10.1002/asna.201713316</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/asna.201713316" target="_blank" >10.1002/asna.201713316</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Long-term activity of QU Car

Popis výsledku v původním jazyce

This paper presents an analysis of the long-term activity of the cataclysmic variable (CV) QUCar using CCD (charge-coupled device) V-band ASAS (All Sky Automated Survey) data, obtained between 2001 and 2009. I show that the evolution of brightness on the timescale of weeks and months (not from night to night) dominates the light curve during this mapped time. The histograms of brightness are not consistent with the normal distribution and show that the character of the light curve changes for the individual years, although the mean brightness remains similar. One episode of an exceptionally bright state displayed a return accompanied by a series of strong fluctuations of brightness. This shows that the amplitude of the brightness variations changes from time to time, and it does not always depend on the mean level of brightness. This analysis of QUCar thus shows the type of the long-term activity in a CV with a very high mass transfer rate.

Název v anglickém jazyce

Long-term activity of QU Car

Popis výsledku anglicky

This paper presents an analysis of the long-term activity of the cataclysmic variable (CV) QUCar using CCD (charge-coupled device) V-band ASAS (All Sky Automated Survey) data, obtained between 2001 and 2009. I show that the evolution of brightness on the timescale of weeks and months (not from night to night) dominates the light curve during this mapped time. The histograms of brightness are not consistent with the normal distribution and show that the character of the light curve changes for the individual years, although the mean brightness remains similar. One episode of an exceptionally bright state displayed a return accompanied by a series of strong fluctuations of brightness. This shows that the amplitude of the brightness variations changes from time to time, and it does not always depend on the mean level of brightness. This analysis of QUCar thus shows the type of the long-term activity in a CV with a very high mass transfer rate.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/GA13-33324S" target="_blank" >GA13-33324S: Rentgenový monitor račí oko</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Astronomische Nachrichten

ISSN

0004-6337

e-ISSN

—

Svazek periodika

338

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

4

Strana od-do

696-699

Kód UT WoS článku

000408308300006

EID výsledku v databázi Scopus

2-s2.0-85022180828