Table 3.
Values for the masses and fluxes of the six young supernova remnants.
| Cassiopeia A | SN 1987A | Vela Jr | Tycho | Kepler | G1.9+0.3 | |
|---|---|---|---|---|---|---|
| Flux 44Sc [10−5 ph cm−2 s−1] | 9.5 ± 3.0 | < 4.1 | < 4.7 | < 6.2 | < 2.6 | < 3.7 |
| Flux 44Ti [10−5 ph cm−2 s−1] | 3.3 ± 0.9 | < 1.9 | < 2.8 | < 1.5 | < 1.3 | < 1.1 |
| Flux Comb [10−5 ph cm−2 s−1] | 4.2 ± 1.0 | < 1.8 | < 2.1 | < 1.4 | < 1.1 | < 1.0 |
| Mass Comb [10−4 M⊙] | 2.6 ± 0.6 | < 6.9 | < 0.3 | < 4.8 | < 4.0 | < 0.3 |
| NuSTAR [10−5 ph cm−2 s−1] | 1.8 ± 0.3 (1) | 0.35 ± 0.07 (3) | – | < 1.0 (5) | – | < 1.5 (7) |
| Integral/IBIS [10−5 ph cm−2 s−1] | 1.3 ± 0.3 (2) | 1.7 ± 0.4 (4) | < 1.8 (2) | < 1.5 (6) | < 0.63 (2) | < 0.9 (2) |
Notes. Fluxes are determined for the 44Sc and 44Ti decay separately and also with a combined fit for the most stringent constraints in our analysis. We also include results determined with the NuSTAR and Integral/IBIS telescope, separated by the dashed line.
References. (1) Grefenstette et al. (2017); (2) Tsygankov et al. (2016); (3) Boggs et al. (2015); (4) two lines combined Grebenev et al. (2012); (5) Lopez et al. (2015); (6) Wang & Li (2014); and (7) Zoglauer et al. (2015).
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