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arXiv · 1301.3909

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

S. Kozlowski·A. Udalski·L. Wyrzykowski·R. Poleski·P. Pietrukowicz·J. Skowron·M. K. Szymanski·M. Kubiak·G. Pietrzynski·I. Soszynski·K. Ulaczyk
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Abstract

We analyze two years (mid-2010 to mid-2012) of OGLE-IV data covering ~65 deg^2 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 deg^2), 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.

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S. Kozlowski, A. Udalski, L. Wyrzykowski, R. Poleski, P. Pietrukowicz, J. Skowron, M. K. Szymanski, M. Kubiak, G. Pietrzynski, I. Soszynski, K. Ulaczyk. 2013-04-11. Supernovae and Other Transients in the OGLE-IV Magellanic Bridge Data. https://arxiv.org/abs/1301.3909

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