Spectroscopic follow-up strategy of interesting targets
The proposed follow-up strategies listed below are ideal, optimized for allowing proper data modelling for the following types of transients:
- Normal type Ia SNe at d < 12 Mpc (progenitors)
- Normal CC-SNe at d < 25 Mpc (progenitors)
- Type IIn and Ibn SNe (especially those at d < 40 Mpc);
- Hyperluminous SNe (the core of the proposal)
- faint SNe (the core of the proposal)
- LBV-like eruptions from massive stars
- SNe in metal-poor environments
- In some cases, more canonical supernovae (e.g. reddened SNe; 1991bg-like, etc... see proposals)
IDEAL MONITORING SCHEMES FOR THE DIFFERENT SUBTYPES
1) Most type II SNe (including type IIP, 1987A-like events, type IIL, 2010jp-like SNe IIL, 1996L-like SNe IIL; 2008es-like SNe IIL; peculiar 1994W-like SNe IIn)
- 1 spec / day ***** ph < 7 days
- 1 spec / 3 days ***** 7 days < ph < 20 days
- 1 spec / week ***** 20 days < ph < 50 days
- 1 spec / 3 weeks ***** 50 days < ph < 120 days
- 1 spec ***** 120 < ph < 200 days
- 1 spec ***** ph > 250 days
2) Stripped-envelope SNe (Normal SNe Ia, Ib, Ic, IIb; "Super-Chandra" Ia) - assuming an average rise time of 18 days
- 1 spec / day ***** ph < 7 days
- 1 spec / 2 days ***** 7 days < ph < 15 days
- 1 spec / 3 days ***** 15 days < ph < 30 days
- 1 spec / 10 days ***** 30 days < ph < 60 days
- 1 spec ***** ph ~ 100-120 days
- 1 spec ***** ph > 200 days
3) Hyperluminous Supernovae (Bright SNe Ib/c, "Quimbies", 2006gy-like events)
- 1 spec / 10 days ***** ph < 100 days
- 1 spec / month ***** 100 days < ph < 300 ddays
- 1 spec ***** ph ~ 400 days
4) Fast-evolving stripped-envelope SNe (2008ha-like, 2005E-like events; SNe Ibn)
- 1 spec / day ***** ph < 15 days
- 1 spec / 2 days ***** 15 days < ph < 30 days
- 1 spec / week ***** 30 days < ph < 60 days
- 1 spec ***** ph ~ 90 days
- 1 spec ***** ph ~ 120 days
- 1 spec ***** ph ~ 150-180 days
5) 2008S-like events; LBV-like objects with non-erratic light curves
- 1 spec / 3 days ***** ph < 10 days
- 1 spec / week ***** 10 days < ph < 30 days
- 1 spec / 2 weeks ***** 30 days < ph < 90 days
- 1 spec ***** ph ~ 140-160 days
6) Transients in the "gap" with erratic light curves No general rules; modest spectroscopic monitoring, more crucial photometry
- 1 classification spectrum
- 1 spectrum close to a peak
- 1 spectrum in quiescence (if any) or in a minimum