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30 inch (0.76 m) mirror Lick Observatory, Mt. Hamilton, near San Jose, CA Funded by NSF, the Sylvia & Jim Katzman Foundation, AutoScope Corp., Sun Microsystems,

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Presentation on theme: "30 inch (0.76 m) mirror Lick Observatory, Mt. Hamilton, near San Jose, CA Funded by NSF, the Sylvia & Jim Katzman Foundation, AutoScope Corp., Sun Microsystems,"— Presentation transcript:

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2 30 inch (0.76 m) mirror Lick Observatory, Mt. Hamilton, near San Jose, CA Funded by NSF, the Sylvia & Jim Katzman Foundation, AutoScope Corp., Sun Microsystems, Hewlett- Packard Co., the University of California (Berkeley and Santa Cruz), and NASA.

3 30 inch R-C telescope, f/8.2 Laser optical encoders Compact and light-weight Precise secondary maneuver 20 slot filter wheel Apogee AP7 camera, 6.7’ FOV, 0.8”/pix Off-axis guiding Automatic weatherstation TelescopeSecondaryCamerasWeatherstation Step motors Guider Apogee filterwheel

4 2.No. of images per night 700-1300 img/night 3. Interval distribution 1. No. of galaxies monitored: 14,000  7,500 (06/2004) Obs interval (days) No. of obs 2001-2003After Jun 2004

5 Who found the most nearby SNe? LOSS 427 SNe (1998 - 2004) Zwicky 236 SNe (1940 - 1980) Mueller 110 SNe (1950 - 2000)

6 KAIT Lick 40-in Lick 3-m Keck I/II 10-20% of time Photometry calibration 2-3 nights per month Calibration photometry 2 nights per month spectroscopy Occasional spectroscopy

7 Distribution of SN followup Some Good Great Total SN Ia 57 20 88 165 SN II 32 16 29 77 SN Ibc 2 3 12 17 Total: 259 (As of May, 2005)

8 Program to respond to GRB alerts promptly Interrupt KAIT and take a pre-arranged sequence of images Reaching 19 th mag within 60s of alerts Unfiltered obs  V, I, unfiltered limitation: small field of view 6.7’ x 6.7’ - Li et al. 2003

9 (Li, Filippenko, Chornock, & Jha 2003) GRB 021211 Obs started at t=105s 18 data points in 10 min One of the 2 GRBs with reverse shock emission detected

10 GRB 020813 2262 02/08/13 143 2262 02/08/13 63 2493 02/12/11 108 2493 02/12/11 35 2493 02/12/11 23 2493 02/12/11 45 Trig date Resp. time(s)

11 x GRB 040924 15” off field ! t = 30st = 25 min GRB 040924

12 SwiftLick Weather Lick Observatory May 19, 2005 GRB 050412 (GCN 3256): t = 66s GRB 050416 (GCN 3270): t = 40s Swift bursts:

13 Summary 1. a powerful SN search/followup engine 2. capable of catching GRB OA early KAIT is


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