1. Dusty Massive Evolved Stars In the Nearby Universe Stephen J. Williams National Observatory of Athens June 23, 2014 1

2. Collaborators Alceste Bonanos (NOA) Nikolay Britavskiy (NOA) Michalis Kourniotis (NOA) Jose Prieto (Princeton) Andrea Mehner (ESO) William Blair (JHU) Brad Whitmore (STScI) 2

3. SN2009ip 3 Mauerhan et al. 2013 LBV Variability LBV Outbursts

4. 4 Szczygieł et al. 2010

5. 5 Ekström et al. 2012

6. 6

7. 7 Bonanos et al. 2009

8. 8 Khan et al. 2013

9. 9

10. 10 Britavskiy et al. 2014

11. Conclusions, Work to Do Pan-STARRS1 – Variability to ID evolved massive stars – Bandpass diagnostics Spectroscopic follow-up Census of objects across metallicity SN progenitor groundwork 11

12. References Mauerhan et al. 2013, MNRAS, 430, 1801 Szczygieł et al. 2010, AJ, 140, 14 Ekström et al. 2012, A&A, 537, 146 Bonanos et al. 2009, AJ, 138, 1003 Khan et al. 2013, ApJ, 767, 52 Britavskiy et al. 2014, A&A, 562, 75 12