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Foreground Data

Foreground

Product Name
HI4PI Low and Intermediate Velocity HI
Coord. System
Galactic
Projection Type
HEALPix ring, res 10 (Nside=1024)
Resolution
16.1 arcmin
Original Data Source
Harvard Dataverse
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Description

Lenz et al. (2017) used data from the HI4PI all-sky survey of HI 21-cm line emission to produce an all-sky map of H I column density for gas at |vLSR| < 90 km/s. The interstellar reddening map Lenz et al. derived from these data is also available and is described here.

More details can be found in:

"A new, large-scale map of interstellar reddening derived from HI emission", Lenz, Hensley, and Doré 2017, ApJ, in press, arXiv
Harvard Dataverse

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HEASARC Director: Dr. Alan P. Smale
LAMBDA Director: Dr. Eric R. Switzer
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Web Curator: Mr. Michael R. Greason