The SED Machine - A Dedicated Transient IFU Spectrograph

Sagi Ben-Ami, Nick Konidaris, Robert Quimby, Jack T. C. Davis, Chow Choong Ngeow, Andreas Ritter, Alexander Rudy

Research output: Contribution to journalMeeting Abstractpeer-review


The Spectral Energy Distribution (SED) Machine is an Integral Field Unit (IFU) spectrograph designed specifically to classify transients. It is comprised of two subsystems. A lenselet based IFU, with a 26 '' x 26 '' Field of View (FoV) and similar to 0.75 '' spaxels feeds a constant resolution (R similar to 100) triple- prism. The dispersed rays are than imaged onto an off-the-shelf CCD detector. The second subsystem, the Rainbow Camera (RC), is a 4-band seeing-limited imager with a 12.5' x 12.5' FoV around the IFU that will allow real time spectrophotometric calibrations with a similar to 5% accuracy. Data from both subsystems will be processed in real time using a dedicated reduction pipeline. The SED Machine will be mounted on the Palomar 60-inch robotic telescope (P60), covers a wavelength range of 370 - 920nm at high throughput and will classify transients from on-going and future surveys at a high rate. This will provide good statistics for common types of transients, and a better ability to discover and study rare and exotic ones. We present the science cases, optical design, and data reduction strategy of the SED Machine. The SED machine is currently being constructed at the Calofornia Institute of Technology, and will be comissioned on the spring of 2013.
Original languageEnglish
Number of pages9
JournalGround-Based And Airborne Instrumentation For Astronomy Iv
StatePublished - 2012
EventConference on Ground-Based and Airborne Telescopes IV - Amsterdam, NETHERLANDS
Duration: 1 Jul 20126 Jul 2012


Dive into the research topics of 'The SED Machine - A Dedicated Transient IFU Spectrograph'. Together they form a unique fingerprint.

Cite this