SPHEREx Archives

Regions surveyed to identify sources likely to present spectra with detectable ice features of H2O, CO, CO2, 13CO2, and other species in the 3 − 5 µm wavelength range where SPHEREx is sensitive. Upper panel: The regions are projected onto a background greyscale image representing the Rowles & Froebrich (2009) extinction map stretched from AV = 0 (white) to 2 mag (black). Solid red lines enclose the fields from which candidate SPHEREx targets have been drawn. Dotted blue lines indicate the boundaries of nearby molecular clouds as defined by Zucker et al. (2019). Red circles indicate the locations and sizes of ‘dark nebulae’ identified on the Palomar plates by Lynds (1962). Lower panel: same symbols as the upper panel, but the background greyscale image is the integrated 12CO(1-0) line intensity survey executed with the CfA 1.2 m telescope and its southern hemisphere counterpart (e.g., Dame et al. 2001; Heyer & Dame 2015). The inverted greyscale stretch ranges from −1 to 25 K km s−1, to indicate the extensive CO survey footprint. The white background indicates regions unobserved by the CfA CO survey except for the Magellanic Clouds (the SMC and LMC maps are described respectively in Rubio et al. (1991) and Cohen et al. (1988)). -- astro-ph.GA

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Imaging & Spectroscopy, Missions & Hardware, Status Report, Stellar Cartography

The SPHEREx Target List of Ice Sources (SPLICES)

by Keith CowingJanuary 31, 2025January 31, 2025

One of the primary objectives of the SPHEREx mission is to understand the origin of molecules such as H2O, CO2, and other volatile compounds at the early stages of planetary […]

SPHEREx

The SPHEREx Target List of Ice Sources (SPLICES)

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