HERON used a dedicated 0.7-m telescope to image the haloes of 124 galaxies in the Local Volume to surface brightnesses of 28-30 mag/arcsec^2. The sample is primarily from the Two Micron All Sky Survey Large Galaxy Atlas and extended to include nearby dwarf galaxies and more distant giant ellipticals, and spans fully the galaxy color-magnitude diagram including the blue cloud and red sequence
The full-sky H-alpha map (6' FWHM resolution) is a composite of the
Virginia Tech Spectral line Survey (VTSS) in the north and the
Southern H-Alpha Sky Survey Atlas (SHASSA) in the south. Stellar
artifacts and bleed trails have been carefully removed from these maps.
The Wisconsin H-Alpha Mapper (WHAM) survey provides a stable zero-point
over 3/4 of the sky on a one degree scale. This composite map can be used
to provide limits on thermal bremsstrahlung (free-free emission) from
ionized gas known to contaminate microwave-background data. The map
(in Rayleighs; 1R=10<sup>6</sup>/4pi photons/cm<sup>2</sup>/s/sr), an error map, and a
bitmask are provided in 8640x4320 Cartesian projections as well as
HEALPIX (Nside 256, 512, and 1024) projections on the
<a href="https://faun.rc.fas.harvard.edu/dfink/skymaps/halpha/"> H-Alpha Full-Sky Map website</a>. Provenance: . This is a service of NASA HEASARC.
Scans of plates kept at Landessternwarte Heidelberg-Königstuhl. They
were obtained at location, at the German-Spanish Astronomical Center
(Calar Alto Observatory), Spain, and at La Silla, Chile. The plates
cover a time span between 1880 and 1999.
Specifically, HDAP is essentially complete for the plates taken with
the Bruce telescope, the Walz reflector, and Wolf's Doppelastrograph
at both the original location in Heidelberg and its later home on
Königstuhl.
These data were generated at the HEASARC in 1994. Certain
gaps and streaks in the image have been fixed by interpolating
over the the gap. Typically these gaps are no more than a pixel
or two wide. A brief description of the satellite and the
data analysis follows. The map used in <i> SkyView </i>
is the map designated <tt> 322_15_tot_ecl_samp.img</tt> in the
<a href=ftp://legacy.gsfc.nasa.gov/heao1/data/a2/maps/heasarc_med_hed>
HEASARC FTP area</a>. Many other maps are available. These differ
in epoch, resolution, energy band,
coordinate system and projection, and sampling methods.
Details are given in the README file in the archive.
<p>
See Allen, Jahoda, and Whitlock (1994) for full details about the
available maps, their processing, and methods for converting the
map intensities into familiar physical units. Provenance: NASA, HEASARC. This is a service of NASA HEASARC.
HEAVENS images (ISDC - Data Centre for Astrophysics)
Short Name:
HEAVENS @ ISDC
Date:
09 Jul 2019 14:39:19
Publisher:
WFAU
Description:
SIAP Cutout service of the INTEGRAL ISGRI and JEM-X images.
HEAVENS provides analysis services for a number of recent and important
high-energy missions. These services will allow any user to perform
on-the-fly data analysis to produce straightforwardly scientific results
for any sky position, time and energy intervals without requiring
mission specific software or detailed instrumental
knowledge.
Herschel Astrophysical Terahertz Large Area Survey
Short Name:
H-ATLAS
Date:
27 Oct 2022 19:00:00
Publisher:
NASA/IPAC Infrared Science Archive
Description:
The Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) is a survey of 600 deg^2 in five photometric bands - 100, 160, 250, 350 and 500 microns - with the Photoconductor Array Camera and Spectrometer (PACS) and Spectral and Photometric Imaging Receiver (SPIRE) cameras. H-ATLAS DR1 includes the survey of three fields on the celestial equator, covering a total area of 161.6 deg^2 and previously observed in the Galaxy and Mass Assembly (GAMA) spectroscopic survey.
Herschel standard data products were systematically generated by the Herschel Data Processing pipeline and made available to the users through the Herschel Science Archive (HSA) typically 1-2 days after an observation had been executed. Today all Herschel science data (~23,400 hours of observing, ~37,000 AORs) are publicly available, and there are science calibration observations (~2600 hours of observing, ~6600 AORs) available too. In addition "User Provided Data Products" (UPDPs) are also being served by the HSA.
Herschel Exploitation of the Local Galaxy Andromeda
Short Name:
HELGA
Date:
27 Oct 2022 19:00:00
Publisher:
NASA/IPAC Infrared Science Archive
Description:
HELGA observed Andromeda on a 5.5x2.5 degree field, an area ~4.5 larger with respect to any previous IR observations, with SPIRE and PACS fast scan Parallel Mode, thus obtaining the most complete FIR survey of this galaxy both in terms of spatial mapping and spectral coverage.
Herschel Data from the "Galactic Cold Cores: A Herschel Survey of the Source Populations Revealed by Planck" (Cold Cores) Open-Time Key Program are available here. IRSA is serving the Cold Cores imaging of 115 PACS and 116 SPIRE fields containing Planck cold dust detections. This is Herschel program KPOT_mjuvela_1.
The Herschel Gould Belt Survey is one of the largest Herschel Key Projects. It conducted extensive far-infrared and submillimeter mapping of nearby molecular clouds with both the SPIRE and PACS instruments. It covered the bulk of the nearest (d <= 0.5 kpc) cloud complexes in the Galaxy, which are mostly located in the Gould Belt, a giant (700 pc by 1000 pc), flat structure inclined by 20d to the Galactic plane.
