NASA Rocket Experiment Finds the Universe Brighter Than We Thought
A NASA sounding rocket experiment has detected a surprising surplus of infrared light in the dark space between galaxies, a diffuse cosmic glow as bright as all known galaxies combined. The glow is thought to be from orphaned stars flung out of galaxies. The findings redefine what scientists think of as galaxies. Galaxies may not have a set boundary of stars, but instead stretch out to great distances, forming a vast, interconnected sea of stars. Read more
Black Brant XII Sounding Rocket Launched From Wallops
A Black Brant XII suborbital rocket carrying the Cosmic Infrared Background ExpeRiment (CIBER) was successfully launched at 11:05 p.m. June 5 from NASAs launch range at the Wallops Flight Facility in Virginia. Read more
Title: The Cosmic Infrared Background Experiment (CIBER): A Sounding Rocket Payload to Study the Near Infrared Extragalactic Background Light Authors: M. Zemcov, T. Arai, J. Battle, J. Bock, A. Cooray, V. Hristov, B. Keating, M. G. Kim, D. H. Lee, L. R. Levenson, P. Mason, T. Matsumoto, S. Matsuura, U. W. Nam, T. Renbarger, I. Sullivan, K. Suzuki, K. Tsumura, T. Wada
The Cosmic Infrared Background Experiment (CIBER) is a suite of four instruments designed to study the near infrared (IR) background light from above the Earth's atmosphere. The instrument package comprises two imaging telescopes designed to characterise spatial anisotropy in the extragalactic IR background caused by cosmological structure during the epoch of reionisation, a low resolution spectrometer to measure the absolute spectrum of the extragalactic IR background, and a narrow band spectrometer optimised to measure the absolute brightness of the Zodiacal light foreground. In this paper we describe the design and characterisation of the CIBER payload. The detailed mechanical, cryogenic, and electrical design of the system are presented, including all system components common to the four instruments. We present the methods and equipment used to characterise the instruments before and after flight, and give a detailed description of CIBER's flight profile and configurations. CIBER is designed to be recoverable and has flown twice, with modifications to the payload having been informed by analysis of the first flight data. All four instruments performed to specifications during the second flight, and the scientific data from this flight are currently being analysed.
Title: Cosmic Infrared Background ExpeRiment (CIBER): A Probe of Extragalactic Background Light from Reionisation Authors: Asantha Cooray, James J. Bock, Mitsunobu Kawada, Brian Keating, Andrew Lange, Dae-Hee Lee, Louis Levenson, Toshio Matsumoto, Shuji Matsuura, Tom Renbarger, , Ian Sullivan, Kohji Tsumura, Takehiko Wada, Michael Zemcov
The Cosmic Infrared Background ExpeRiment (CIBER) is a rocket-borne absolute photometry imaging and spectroscopy experiment optimised to detect signatures of first-light galaxies present during reionisation in the unresolved IR background. CIBER-I consists of a wide-field two-colour camera for fluctuation measurements, a low-resolution absolute spectrometer for absolute EBL measurements, and a narrow-band imaging spectrometer to measure and correct scattered emission from the foreground zodiacal cloud. CIBER-I was successfully flown on February 25th, 2009 and has one more planned flight in early 2010. We propose, after several additional flights of CIBER-I, an improved CIBER-II camera consisting of a wide-field 30 cm imager operating in 4 bands between 0.5 and 2.1 microns. It is designed for a high significance detection of unresolved IR background fluctuations at the minimum level necessary for reionisation. With a FOV 50 to 2000 times largerthan existing IR instruments on satellites, CIBER-II will carry out the definitive study to establish the surface density of sources responsible for reionisation.