Nat Butler 445 Campbell Hall UC Berkeley Berkeley, CA 94720-3411 510-859-3052 EMAIL: nat[at]astro[dot]berkeley[dot]edu

Nat Butler is a GLAST/Einstein Fellow studying astrophysical transients. In particular, he observes the optical, IR, X-, and Gamma-ray emission from Gamma-ray Bursts (GRBs) and their afterglows in order to study the physics of GRB jets, the afterglow emission mechanisms, the nature of GRB progenitors, and potentially to use GRBs as cosmology probes. He is also an experimentalist focusing on robotic telescopes and novel technologies for transient followup.   -   -   CV   -   -   Publications   -   -

Experimental Projects C3P0Cam : The CMOS 3-Color Prototype #0 Camera. An optical imaging camera designed for high-time cadence, multi-color observations of transient sources. The camera was tested using the 1m Nickel Telescope at Lick Observatory.   I am PI of RATIR: the Reionization And Transients InfraRed camera/telescope. This pathfinder to SASIR is a 6-channel simultaneous optical/NIR imager now under construction which is to be dedicated to GRB followup and the detection of high-z GRB afterglows. SASIR The Synoptic All-Sky InfraRed survey, a joint project between the US and Mexico to build a 6.5m telescope in Baja California that will repeatedly image the entire sky to a level 100-500 times deeper than 2MASS.

Astronomical Surveys and Data Mining DotAstro: Time Domain Astronomy Warehouse: One-stop Shop for Data and Science. This is a lightcurve warehouse for transients. Berkeley TCP: Transients Classification Pipeline. The Transients Classification Pipeline (TCP) is a parallelized, Python-based framework created to identify and classify transient sources, beginning with sources from PTF. PTF: The Palomar Transients Factory. PTF is a new wide field, multiple cadence transient survey utilizing a 7.8 square degree CCD array newly placed on the 48" Oshin Telescope at Palomar Observatory.

Swift Observations and Downloadable Reduced Data Products Swift observes with unprecedented detail GRBs and their early afterglows. An IDL save file for the BAT fits in Butler et al. (2007; ApJ, 671, 656) can be found here. A FITS format version can be found here. (Up-to-date version: html or fits, caveat emptor). Astrometry-corrected positions for Swift XRT X-ray afterglows can be found here. This is also an online repository for XRT and BAT lightcurves and spectra.

Fermi The Fermi Gamma-ray Space Telescope (formerly GLAST) launched successfully in June and is now detecting GRBs with both the GBM and LAT.

 

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