Current active nearby SN searches Scientific Goals of LOSS Monitor a well-defined galaxy sample Find lots of SNe in addition to find them young Do photometric followups as long as many SNe
Bell, Allie, Managing Editor has reference to this Academic Journal, PHwiki organized this Journal 1885 – 1949: 0-6 1950 – 1980: 20 1980 – 1990: 30 1991 – 1996: 70 1997 – 2000: 180 2001 – 2003: 300 af as long as dable CCD camera Commercial 14-32 tel Computer + automation High-z SN search Reasons: SNe/year Current active nearby SN searches LOSS 336 SNe (1998-2003) UC Berkeley SN factory 83 SNe (2002-2003) LBL Puckett 67 SNe (1998-2003) Amateur Boles 57 SNe (1997-2003) Amateur Armstrong 46 SNe (1998-2003) Amateur Evans 41 SNe (1981-2003) Amateur Currently operation on hold
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Scientific Goals of LOSS Monitor a well-defined galaxy sample Find lots of SNe in addition to find them young Do photometric followups as long as many SNe Detailed log files as long as everyday observation GRB followup New 30 inch (0.75 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 Cali as long as nia (Berkeley in addition to Santa Cruz), in addition to NASA. 30 inch R-C telescope, f/8.2 Laser optical encoders Compact in addition to light-weight Precise secondary maneuver 20 slot filter wheel Apogee AP7 camera, 6.8 FOV, 0.8/pix Off-axis guiding Automatic weatherstation Telescope Secondary Cameras Weatherstation Step motors Guider Apogee filterwheel
workstation workstation HETE-2 pc1 pc2 pc3 GCN Berkeley Lick Obs. KAIT 90 miles Fully robotic obs Hardware control Obs schedule in addition to control SN search schedule SN search image processing GRB response Program to respond to GRB alerts promptly Interrupt KAIT in addition to take a pre-arranged sequence of images Reaching 19th mag within 60s of alerts Unfiltered obs will use filters System Obs. Obs started at t=105s after burst 18 data points in the first 10 minutes One of the best early GRB light curves One of the few GRBs with reverse shock emission detected GRB 021211 GRB 020813 A mix of automatic in addition to manually remote obs Slow early-time power-law decline index
(Li, Filippenko, Chornock, & Jha 2003)
Swift No. of images per night 20s 19th mag 110 img/hr 700-1300 img/night Interval distribution t < 10 days (80%) Most SNe are discovered young!!! 1. No. of galaxies monitored: 19,000 3. No. of SN discoveries Year LOSS SNe 20 40 38 68 82 95 95 Oh, No! 10% - 20% of the KAIT time ~40% of LOSS SNe: some photometry ~25% of LOSS SNe: good photometry Daily around max, every 2-7 days after max 196 SNe observed as of Nov 10,2003. Distribution of SN followup Some Good Great Total SN Ia 48 14 70 132 SN II 10 21 25 56 SN Ibc 1 1 6 8 Total: 196 Why not Ib/c 1. rare 2. tough When We are working on them. (SN Ia) Li et al. 2001 (SN II-P) Leonard et al. 2002 W. Li, A. V. Filippenko, E. Gates et al. 2001, PASP, 113, 1178 M. Modjaz, W. Li, A. V. Filippenko et al. 2001, PASP,113, 308 W. C. G. Ho, S. D. Van Dyk, C. Y. Peng et al. 2001, PASP, 113, 1349 W. Li, A. V. Filippenko, S. D. Van Dyk et al. 2002, PASP, 114, 403 W. Li, A. V. Filippenko, R. Chornock et al. 2003, PASP, 115, 453 A. G. Riess, A. V. Filippenko, W. Li et al. 1999, AJ, 118, 2675 W. Li, A. V. Filippenko, A. G. Riess et al. 2001, ApJ, 546, 719 W. Li, A. V. Filippenko, A. G. Riess et al. 2001, ApJ, 546, 734 T. Matheson, A. V. Filippenko, R. Chornock et al. 2000, AJ, 119, 2303 T. Matheson, A. V. Filippenko, W. Li et al. 2001, AJ, 121, 1648 R. Foley, M. Papenkova, B. Swift et al. 2003, PASP, 115, 1220 S. D. Van Dyk, C. Y. Peng, J. Y. King et al. 2000, PASP, 112, 1532 D. C. Leonard, A. V. Filippenko, W. Li et al. 2002, AJ, 124, 2490 D. C. Leonard, A. V. Filippenko, E. L. Gates et al. 2002, PASP, 114, 35 D. C. Leonard, A. V. Filippenko, R. Chornock, W. Li 2002, AJ, 124, 2506 S. D. Van Dyk, W. Li, A. V. Filippenko 2003, PASP, 115, 1289 S. van den Bergh, W. Li, A. V. Filippenko 2002, PASP, 114, 820 S. Van den Bergh, W. Li, A. V. Filippenko 2003, PASP, 115, 1280 SN Ia photometry SN Ia statistics SN Ib/c SN II SN rates GRB W. Li, A. V. Filippenko, R. Chornock, S. Jha 2003, ApJ, 586, L9 W. Li, A. V. Filippenko, R. chornock, S. Jha 2003, PASP, 115, 844 A stable nearby SN search engine In collaboration with CfA, CSP: more followup Publish existing photometry database: SNe Ia: correlation, H0, local flow SNe II : correlation, EPM SNe Ibc: correlation, SN/GRB connection SN rate, statistics GRB followup in the Swift era KAIT is conducting the worlds most successful search as long as very nearby SNe, in addition to has yielded interesting results on the statistics in addition to photometric properties of SNe in addition to GRB optical afterglows. We have shown that good science can be done with a small telescope when correctly engineered in addition to programmed.
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