Supernovae and Other Transients in the OGLE-IV Magellanic Bridge Data

• Autorzy: Kozłowski S. , Udalski A. , Wyrzykowski Ł. , Poleski R. , Pietrukowicz P. , Skowron J. , Szymański M. K. , Kubiak M. , Pietrzyński G. , Soszyński I. , Ulaczyk K.
• Języki publikacji: EN

Abstrakty

EN

We analyze two years (mid-2010 to mid-2012) of OGLE-IV data covering ≈65 deg² of the Magellanic Bridge (the area between the Magellanic Clouds) and find 130 transient events including 126 supernovae (SNe), two foreground dwarf novae and another two SNe-like transients that turned out to be active galactic nuclei (AGNs). We show our SNe detection efficiency as a function of SN peak magnitude based on available SNe rate estimates. It is 100% for SNe peak magnitudes I<18.8 mag and drops to 50% at I≈19.7 mag. With our current observing area between and around the Magellanic Clouds (≈600 deg²), we expect to find 24 SNe peaking above I<18 mag, 100 above I<19 mag, and 340 above I<20 mag, annually. We briefly introduce our on-line near-real-time detection system for SNe and other transients, the OGLE Transient Detection System.

Słowa kluczowe

EN

supernovae: general; Magellanic Clouds; surveys

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2013
• Tom: Vol. 63, No. 1
• Strony: 1--19
• Opis fizyczny: Bibliogr. 63 poz., rys., tab., wykr.

Twórcy

autor

Kozłowski S.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Udalski A.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Wyrzykowski Ł.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK

autor

Poleski R.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• The Ohio State University, 140 W. 18th Avenue, Columbus, OH 43210, USA

autor

Pietrukowicz P.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Skowron J.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Szymański M. K.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Kubiak M.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Pietrzyński G.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• Departamento de Astronomia, Universidad de Concepción, Casilla 160-C, Concepción, Chile

autor

Soszyński I.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Ulaczyk K.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

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