The NUTTelA-TAO has our instrument, the Burst Simultaneous Three-Channel Imager (BSTI; PI Grossan), three EMMCCD cameras simultaneously recording the same sky, and responding to Swift GRB alerts within < 8 s to measure the prompt GRB spectral shape (see my JHEA article, above). Below, you can see our progress viewing the sky (should be updated weekly). ATO has far from perfect weather, but you can see we're regularly accumultating time on the sky.
|GRB||Sens5sig, 10s g'||S510s r'||S510s i'||Result|
|200324a||17.9-18.4||..||17.1||Highly Extinguished burst/ no optical detections at all; r' cam down.|
|SGR1935+2154||..||200502:***17.5 in 120 ms!!!***||First detection of FRB from SGR. No bursts during monitoring (200503 Xburst during closed roof due to rain, sunrise).|
We studied hundreds of Swift X/gamma GRB light curves and Swift UVOT observations in order to estimate the early behavior of GRB. We then applied these findings, using trigger algorithms and instrument designs to predict the observation rates for a rapid-response instrument of modest size, with a NIR camera. We found that our very conservative analysis based on real data (not a theoretical estimate) yielded exciting new science on extinguished bursts with good event rates. Look at our page on the NGRG and our paper.
Bruce Grossan participated in the founding of the EUL, and continues to engage in Collaborating Scientist Activities- Advising on design of gamma-ray bursts experiments, running internships for Moscow State University Students, and helping run the annual EUL Moscow GRB Conference.
Bruce is now a regular collaborator on UFFO. Bruce resigned from all leadership positions after being Co-PI from approx. 2009-2012 (due to scientific management disagreements).
Feasibility of a Small, Rapid Optical-to-IR Response, Next Generation Gamma Ray Burst Mission
Grossan, B., Smoot, G. F., Bogomolov, V.,,S. I. Svertilov , N. N. Vedenkin, M. Panasyuk, B. Goncharov, G. Rozhkov, K. Saleev, E. Grobovskoj, A.S. Krasnov, V. S. Morozenko, V. I. Osedlo, E. Rogkov, T. V. Vachenko, E. V. Linder,
in press, 2013, European Astronomical Society Publications Series: Proceedings of the Fall 2012 Gamma-Ray Burst Symposium held in Marbella, Spain, 8-12 Oct 2012
Update: http://journals.cambridge.org/action/displayJournal?jid=EAS; http://grb2012.iaa.es/index.php/proceedings
Slewing Mirror Telescope optics for the early observation of UV/optical photons from Gamma-Ray Bursts
Jeong, S; Nam, J W; Ahn, K B; Park, I H; Kim, S W; Lee, J; Lim, H; Brandt, S; Budtz-Jørgensen, C; Castro-Tirado, A J; Chen, P; Cho, M H; Choi, J N; Grossan, B; Huang, M A; Jung, A; Kim, J E; Kim, M B; Kim, Y W; Linder, E V; Min, K W; Na, G W; Panasyuk, M I; Ripa, J; Reglero, V; Smoot, G F; Suh, J E; Svertilov, S; Vedenkin, N; Yashin, I
Optics Express, Vol. 21 Issue 2, pp.2263-2278 (2013)
Ultra-Fast Flash Observatory for the observation of early photons from gamma-ray bursts
I H Park, S Brandt, C Budtz-Jørgensen, A J Castro-Tirado, P Chen, P Connell, C Eyles, B Grossan, M-H A Huang, S Jeong, A Jung, J E Kim, S-W Kim, J Lee, H Lim, E V Linder, T-C Liu, K W Min, G W Na, J W Nam, M I Panasyuk, V Reglero, J Ripa, J M Rodrigo, G F Smoot, S Svertilov, N Vedenkin and I Yashin
2013, New J. Phys. 15, 023031
A next generation Ultra-Fast Flash Observatory (UFFO-100) for IR/optical observations of the rise phase of gamma-ray bursts"
B. Grossan ; I. H. Park ; S. Ahmad ; K. B. Ahn ; P. Barrillon ; S. Brandt ; C. Budtz-Jørgensen ; A. J. Castro-Tirado ; P. Chen ; H. S. Choi ; Y. J. Choi ; P. Connell ; S. Dagoret-Campagne ; C. De La Taille ; C. Eyles ; I. Hermann ; M.-H. A. Huang ; A. Jung ; S. Jeong ; J. E. Kim ; M. Kim ; S.-W. Kim ; Y. W. Kim ; J. Lee ; H. Lim ; E. V. Linder ; T.-C. Liu ; N. Lund ; K. W. Min ; G. W. Na ; J. W. Nam ; M. I. Panasyuk ; J. Ripa ; V. Reglero ; J. M. Rodrigo ; G. F. Smoot ; J. E. Suh ; S. Svertilov ; N. Vedenkin ; M.-Z. Wang ; I. Yashin ; M. H. Zhao
2012, SPIE, 8443, 2
|Current||CA, thank goodness.|
This is Bruce Grossan's Home Page. Obviously, reapeating that this is Bruce Grossan's home page is search engine spam, but hey, if it works... LBL and the University of California are in no way responsible for it's content. Please note that all items on this page are copyright protected. Generally speaking, if you write me and ask me, I will be more than happy to allow you to use anything you want as long as you give fair credit and curate the information so others seeing your work will do the same. Copyright Bruce Grossan 1993-2014.
Dr. Bruce Grossan
Lawrence Berkeley Lab 50R-5005
1 Cyclotron Road
Berkeley, CA 94720
Office Location for visits: 50-5006bruce [underscore] grossan [at] lbl[dot]gov [anti-spam format address]