Table 1
Comparing the distributions of Galactic longitudes of SNRs observed in the GLOSTAR-VLA survey with the predictions by Helfand et al. (1989) and Li et al. (1991).
| 0°− 30° | 30°−45° | 45°−60° | |
|---|---|---|---|
| Li et al. (1991) | 316−380 | 101 | 30−36 |
| Helfand et al. (1989) | 146−176 | 53 | 27−32 |
| SNRs in GLOSTAR | 155 | 58 | 26 |
Notes. The numbers presented against Li et al. (1991) are for their 1000 SNRs model, and those against “SNRs in GLOSTAR” include the three samples of G19 SNRs, and previously and newly discovered SNR candidates in GLOSTAR. The expected number of SNRs in the longitude range 0° < l <30° is obtained by assuming that SNRs in 0° < l < 30° account for 50%−60% of the SNRs in the |l| < 30° range (regions F+G+H+I as defined by Helfand et al. 1989; see their Fig. 8). Similarly for 45° < l < 60° (33–40% of SNRs in 45° < l < 90°, i.e., regions B + C).
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