Naslov
Search for small – amplitude long – period variability

Autori
Fatović, Marta ; Palaversa, Lovro ; Thanjavur, Karun ; Ivezić, Željko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, stručni

Izvornik
5. Simpozij studenata doktorskih studija PMF-a : knjiga sažetaka = 5 PhD Student Symposium 2021 : bokk of abstracts / Barišić, Dajana - : Prirodoslovno-matematički fakultet Sveučilišta u Zagrebu, 2021, 275-275

ISBN
978-953-6076-90-1

Skup
5. Simpozij studenata doktorskih studija PMF-a = 5th Faculty of Science PhD Student Symposium

Mjesto i datum
Zagreb, Hrvatska, 24.04.2021. - 25.04.2021

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
pulsating variables ; light curve

Sažetak
We report the results of a search for small- amplitude, long-period (P > 100 days) variability in SDSS Stripe 82 region. The SDSS coverage of Stripe 82 enables such a search because there are on average 20 observations per band in ugriz bands for about 1 million sources, collected over 6 years, with a competitive faint limit (r ~ 22) and precisely calibrated 1 - 2% photometry. We calculated periods for candidate variable sources in this data sample using Lomb - Scargle periodogram and kept 3 highest periodogram peaks per gri filter as relevant. Only those with gri periods agreeing with each other to within 0.1% were later studied. We focus our search on periodic variability with periods 100 <P< 600 days and uniform distribution of data points in phased light curves. We present recovered candidates with periodic variability and their periods that are in good agreement with other surveys such as ZTF.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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