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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/95272
- Detecting z > 2 type IIn supernovae
- Cooke, J.
- Type Un supernovae (SNe IIn) dominate the brightest supernova events in observed FUV flux (∼ 1200-2000 Å). We show that multiband, multiepoch optical surveys complete to mr = 27 can detect the FUV emission of ∼25 z > 2 SNe IIn deg-2 yr-1 (rest frame, or ∼ 10 SNe IIn deg-2 yr-1 observed frame) to 4 σ using a technique that monitors color-selected galaxies. Moreover, the strength and evolution of the bright emission lines observed in low-redshift SNe IIn imply that the Lyα emission features in ∼70% of z > 2 SNe IIn are above the spectroscopic thresholds of 8 m class telescopes for ∼2 yr (rest frame). As a result, existing facilities have the capability to both photometrically detect and spectroscopically confirm z > 2 SNe IIn and pave the way for efficient searches by future 8 m class survey and 30 m class telescopes. The method presented here uses the sensitivities and wide-field capabilities of current optical instruments and exploits (1) the efficiency of z > 2 galaxy color selection techniques, (2) the intrinsic brightness distribution (〈MB〉 = -19.0. σ ± 0.9) and blue profile of SN IIn continua, (3) the presence of extremely bright, long-lived emission features, and (4) the potential to detect blueshifted SN Lyα emission shortward of host galaxy Lyα features.
- Publication type
- Journal article
- Astrophysical Journal, Vol. 677, no. 1 (Apr 2008), pp. 137-145
- Publication year
- FOR Code(s)
- 0201 Astronomical and Space Sciences
- High-redshift galaxies; Photometric techniques; Supernovae
- University of Chicago Press
- Publisher URL
- Copyright © 2008 The American Astronomical Society. All rights reserved. The American Astronomical Society does not allow institutions to archive either the accepted manuscript or the published version of the article. However, you can find an earlier version of the full text here: http://arxiv.org/abs/0711.1550.
- Peer reviewed