Table 1.
Astrophysical parameters for the analyzed objects including the distances of supernova remnants used in the mass estimate for 44Ti.
| Cassiopeia A | SN 1987A | Vela Jr | Tycho | Kepler | G1.9+0.3 | |
|---|---|---|---|---|---|---|
| Distance [kpc] | 3.3 ± 0.1 | 49.6 ± 0.5 | 0.2 | 4.1 ± 1 |
 |
8.5 |
| Year of explosion | 1681 | 1987 | 1320 | 1572 | 1604 | 1890 |
| Age [yr] | 330 | 24 | 690 | 438 | 406 | 120 |
| Type | IIb | II-P | II | Ia | Ia | Ia |
| Exposure [Ms] | 11.2 | 7.0 | 8.3 | 10.3 | 29.3 | 30.6 |
| Galactic coordinates; l/b [deg] | 111.7/−2.1 | 279.7/−31.2 | 266.3/−1.21 | 120.1/1.4 | 4.5/6.8 | 1.9/0.3 |
| References | 1, 2, 3 | 4, 5 | 6 | 7, 8 | 9, 10 | 11, 12 |
Notes. The age of the remnant is given for 01.01.2011 AD, which is the average observation date also used in Eq. (3). Age uncertainties of the time bin are included in the mass estimates. Distance to Vela Jr. is estimated from 44Ti yields. Distance to G1.9+0.3 is estimated from absorption towards the Galactic center. Exposure is dead time corrected, effective INTEGRAL/SPI exposure.
References. (1) Alarie et al. (2014); (2) Reed et al. (1995); (3) Krause et al. (2008a); (4) Pietrzyński et al. (2019); (5) Gall et al. (2015); (6) Aschenbach et al. (1999); (7) Hayato et al. (2010); (8) Krause et al. (2008b); (9) Sankrit et al. (2016); (10) Reynolds et al. (2007); (11) Reynolds et al. (2008); (12) Borkowski et al. (2013).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.