- December 2017 - van Scheltinga et al., 2017, describe their measurements of the IR spectra of larger molecules, which are expected to be found on icy dust grains in the nebulae that SPHEREx will survey. van Scheltinga's work includes spectra for ethanol, acetaldehyde, and dimethyl ether. This work helps provide a more comprehensive basis for interpreting the millions of ice spectra that SPHEREx will generate.
- August 2017 - A pair of projects based on NASA/IRTF SpeX spectroscopy have revealed some new and unexpected findings, including a cometary origin for the red excess seen in the HR4796A system (Lisse et al., 2017), and a close-in carbon-rich circumstellar belt in the young HD 36546 A-star system. These results suggest a rich scientific harvest awaits SPHEREx because of its ability to provide sensitive spectra at similar wavelengths.
- June 2016 - A wide range of science opportunities enabled for the community by SPHEREx are described in the white paper resulting from February's workshop: see Doré et al., 2016. The science topics are wide-ranging, and include extragalactic, galactic, and solar system investigations.
- June 2016 - The ability of SPHEREx to measure very accurate redshifts is described in detail in a new paper from the SPHEREx team. See Stickley et al., 2016.
- June 2016. The SPHEREx sampling algorithm is described in a paper
recently accepted by the Journal of Astronomical Instrumentation. See
Zemcov et al., 2016 for more.
- January 2016. The SPHEREx team described the updated mission concept in six presentations at the Kissimmee AAS meeting:
An All-Sky Spectral Survey (Bock; [PDF]),
Instrument Design and Implementation (Korngut; [PDF]),
Probing the Physics of Inflation (Doré ; [PDF]),
The Origin and Evolution of Interstellar and Protoplanetary Biogenic Molecules: A Comprehensive Survey of Interstellar Ices (Melnick; [PDF]),
Understanding the Origin and Evolution of Galaxies through the Extragalactic Background Light (Zemcov; [PDF]), and
Science Opportunities for the Astronomical Community (Cooray; [PDF]).
- September 2015. K. Mitchell-Wynne et al., Ultraviolet luminosity density of the universe during the epoch of reionization, Nature Communications, 6, 7945.
An analysis of fluctuations on arcminute scales in deep HST/ACS and WFC3 mosaics, extending the technique to shorter wavelengths than previously explored at these depths. Presents new predictions for the strength of the signal from galaxies at redshifts beyond z=8.
- July 2015. S. Spangelo, R. Katti, S. Unwin, J. Bock,
"All Sky Survey Mission Observing Scenario Strategy",
Journal of Astronomical Telescopes, Instruments, and Systems, 1, 3, 37.
A detailed discussion of a general observing strategy for an all-sky survey, including spacecraft and instrument optimization, constraints, and a scheduling algorithm. This strategy will be used by the SPHEREx mission to achieve its all-sky and and deep-sky surveys.
- December 2014. O. Doré et al.,"SPHEREx: An All-Sky Spectral Survey", http://arxiv.org/abs/1412.4872.
A summary of the SPHEREx mission, including mission overview, instrument parameters, survey motivations, simulation pipeline, construction of galaxy catalog, systematics, and the SPHEREx legacy.