Extended sources for 12-year source list, 2020
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New extended sources:
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- HESS J1640-465 (Mares et al): use HESS template from Abramowski et al 2014; point source becomes small extended source

- G106.3+2.7 (Xin et al 2019, ApJ 885, 162): small 0.25 disk described in 2.2; next to bright PSR J2229+6114

- G279.0+1.1 (Araya 2020, MNRAS 492, 5980): ring of Table 1; replaces source cluster in uw9011; nice improvement.



Modified extended sources:
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- HESS J1825 (Grondin et al 2011, Principe et al 2020, also Araya et al 2019, MNRAS 485, 1001)
  Araya is a complex geometry, hard to implement; Principe's global model (Table 1) is worse than previous model; his energy-dependent version does not lead simply to smooth cube; adopt Grondin et al, which differs slightly from previous (unpublished) model.

- G150.3+4.5 (Devin et al): use Gaussian model from Table 1

- Vela X (Tibaldo et al 2018, A&A 617, A78): adopt radio template; accounts for a cluster of uw9011 sources; no need for specific high-energy model

- HB 21 (Ambrogi et al 2019, A&A 623, A86): smaller disk (Sect 3.1), separate point source (detected by Toby, but unassociated)



Not implemented yet:
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- IC 443 (J. Hewitt): not ready

- HESS J1912+101 (D. Green, F. de Palma): not ready

- new HESS shells (F. de Palma): not ready

- CenA lobes (J. Magill): not ready

- Cygnus Loop: not ready

- CTB 37A (Abdollahi et al): wait until pulsar contribution is settled

- HESS J1731-347 (Condon et al 2017, Guo et al 2018): TSExt < 16

- Geminga halo (di Mauro et al): under discussion

- W 30 (Bing Liu et al 2019, ApJ 881, 94): smaller disk with no point source inside: not as good
