A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Core-collapse supernovae in low-metallicity environments and future all-sky transient surveys
Tekijät: Young DR, Smartt SJ, Mattila S, Tanvir NR, Bersier D, Chambers KC, Kaiser N, Tonry JL
Kustantaja: EDP SCIENCES S A
Julkaisuvuosi: 2008
Lehti:Astronomy and Astrophysics
Tietokannassa oleva lehden nimiASTRONOMY & ASTROPHYSICS
Lehden akronyymi: ASTRON ASTROPHYS
Vuosikerta: 489
Numero: 1
Aloitussivu: 359
Lopetussivu: 375
Sivujen määrä: 17
ISSN: 0004-6361
DOI: https://doi.org/10.1051/0004-6361:20078662
Tiivistelmä
Results. Using a single 2 m telescope (with a standard CCD camera) search we predict a detection rate of similar to 1.3 CCSNe yr(-1) in galaxies with metallicities below 12 + log(O/H) < 8.2 which are within a volume that will allow detailed follow-up with 4 m and 8 m telescopes (z = 0.04). With a network of seven 2 m telescopes we estimate similar to 9.3 CCSNe yr(-1) could be found, although this would require more than 1000 h of telescope time allocated to the network. Within the same radial distance, a volume-limited search in the future Pan-STARRS PS1 all-sky survey should uncover 12.5 CCSNe yr(-1) in low-metallicity galaxies. Over a period of a few years this would allow a detailed comparison of their properties. We then extend our calculations to determine the total numbers of CCSNe that can potentially be found in magnitude-limited surveys with PS1 (24 000 yr(-1), within z less than or similar to 0.6), PS4 (69 000 yr(-1), within z less than or similar to 0.8) and LSST (160 000 yr(-1), within z less than or similar to 0.9) surveys.
Results. Using a single 2 m telescope (with a standard CCD camera) search we predict a detection rate of similar to 1.3 CCSNe yr(-1) in galaxies with metallicities below 12 + log(O/H) < 8.2 which are within a volume that will allow detailed follow-up with 4 m and 8 m telescopes (z = 0.04). With a network of seven 2 m telescopes we estimate similar to 9.3 CCSNe yr(-1) could be found, although this would require more than 1000 h of telescope time allocated to the network. Within the same radial distance, a volume-limited search in the future Pan-STARRS PS1 all-sky survey should uncover 12.5 CCSNe yr(-1) in low-metallicity galaxies. Over a period of a few years this would allow a detailed comparison of their properties. We then extend our calculations to determine the total numbers of CCSNe that can potentially be found in magnitude-limited surveys with PS1 (24 000 yr(-1), within z less than or similar to 0.6), PS4 (69 000 yr(-1), within z less than or similar to 0.8) and LSST (160 000 yr(-1), within z less than or similar to 0.9) surveys.
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