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201. Herschel Gould Belt Survey
ID:
ivo://irsa.ipac/Herschel/Images/HGBS
Title:
Herschel Gould Belt Survey
Short Name:
HGBS
Date:
27 Oct 2022 19:00:00
Publisher:
NASA/IPAC Infrared Science Archive
Description:
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.
202. Herschel HIFI Spectral Maps Highly Processed Data Products
ID:
ivo://irsa.ipac/Herschel/Images/HPDP
Title:
Herschel HIFI Spectral Maps Highly Processed Data Products
Short Name:
HPDP
Date:
16 Mar 2017 01:00:00
Publisher:
NASA/IPAC Infrared Science Archive
Description:
Herschel's Heterodyne Instrument for the Far Infrared (HIFI) produced far-infrared spectral maps. HIFI data products automatically processed with the Standard Product Generation (SPG) pipeline are available through the Herschel Data Search. In contrast, the HIFI Highly Processed Data Products (HPDPs) available here have been produced by HIFI instrument scientists using the Herschel Interactive Processing Environment (HIPE), and can be regarded as being as close to science-ready as possible. HPDPs are available for observations taken in the On-The-Fly (OTF) and Dual Beam Switch (DBS) Raster modes during science programs and calibration campaigns, over the Routine and Check-Out phases. The first HPDP delivery (DR1, Nov. 2016) consists of Band 6 and 7 maps.
203. Herschel High Level Images
ID:
ivo://irsa.ipac/Herschel/Images/HHLI
Title:
Herschel High Level Images
Short Name:
HHLI
Date:
27 Oct 2022 19:00:00
Publisher:
NASA/IPAC Infrared Science Archive
Description:
The Herschel High Level Images (HHLI) are a subset of the data in the Herschel Science Archive (HSA), the entire contents of which are accessible at IRSA through the Herschel Data Search tool. The HHLI represent PACS and SPIRE image products that have been processed to the highest level available through the Standard Product Generation (SPG) pipeline, version 14.0. They are provided here as a convenient way for users to quickly visualize PACS and SPIRE imaging for any given region on the sky observed by these two instruments.
204. Herschel Local Group
ID:
ivo://irsa.ipac/Herschel/Images/LocalGroup
Title:
Herschel Local Group
Short Name:
LocalGroup
Date:
07 Apr 2023 00:00:01
Publisher:
NASA/IPAC Infrared Science Archive
Description:
Because the galaxies of the Local Group have such large angular sizes, much of their diffuse, large-angular-scale emission is filtered out by the Herschel data reduction process. This work restores this previously missed dust in Herschel observations of the Large Magellanic Cloud, Small Magellanic Cloud, M31, and M33 by combining Herschel data (including new reductions for the Magellanic Clouds), in Fourier space, with lower-resolution data from all-sky surveys (Planck, IRAS, and COBE) that did not miss the extended emission.
205. Herschel Orion Protostar Survey
ID:
ivo://irsa.ipac/Herschel/Images/HOPS
Title:
Herschel Orion Protostar Survey
Short Name:
HOPS
Date:
27 Oct 2022 19:00:00
Publisher:
NASA/IPAC Infrared Science Archive
Description:
The Herschel Orion Protostar Survey (HOPS, KPOT_tmegeath_2) is a sample of 410 young stellar objects (YSOs) in the Orion molecular clouds, selected from Spitzer data. Most objects have near-infrared photometry from 2MASS, mid- and far-infrared data from Spitzer and Herschel, and submillimeter photometry from APEX; thus, the SEDs cover 1.2 - 870 microns and are used to classify the sample into protostellar classes. Of the 410 YSOs, 330 have Spitzer and Herschel data and are mostly protostars; the remaining objects include likely extragalactic contaminants and faint YSOs. Using mid-IR spectral indices and bolometric temperatures, the sample of 330 YSOs is classified into 92 Class 0 protostars, 125 Class I protostars, 102 flat-spectrum sources, and 11 Class II pre-main-sequence stars. HOPS also implements a simple protostellar model (including a disk in an infalling envelope with outflow cavities) to generate a grid of 30,400 model SEDs and uses it to determine the best-fit model parameters for each protostar.
206. Herschel Space Observatory Log of Observations
ID:
ivo://nasa.heasarc/herschllog
Title:
Herschel Space Observatory Log of Observations
Short Name:
HERSCHLLOG
Date:
07 Mar 2025
Publisher:
NASA/GSFC HEASARC
Description:
The Herschel Space Observatory (Herschel) is an ESA (European Space Agency) project with instruments funded by ESA member states. It was operated from May 2009 till April 2013, offering unprecedented observational capabilities in the far-infrared and sub-millimeter spectral range (55-671 microns [um]). Herschel carried a 3.5m diameter passively cooled Cassegrain telescope, which was the largest of its kind and utilizes a novel silicon carbide technology. The science payload comprised three instruments: two direct detection cameras/medium resolution spectrometers, the Photodetector Array Camera and Spectrometer (PACS) and the Spectral and Photometric Imaging Receiver (SPIRE), and a very high-resolution heterodyne spectrometer, the Heterodyne Instrument for the Far Infrared or HIFI, whose focal plane units were housed inside a superfluid helium cryostat. PACS comprised two mutually exclusive sub-instruments: a bolometric camera designed to perform photometry in three spectral bands (70, 100 and 160 um) and an integral field unit grating spectrometer operating over the spectral range from 57 to 210 um with a spectral resolution ranging from 1000 to 5000. SPIRE comprised a three-band photometer, operating in spectral bands centered on 250, 350 and 500 um, and an imaging Fourier-Transform Spectrometer (FTS), which provided low resolution spectra over the 195-670 um band. Both instruments used germanium bolometers operating at 0.3 K and coupled to the telescope with hexagonally conical feedhorns. The photometer and the spectrometer were not designed to operate simultaneously. HIFI was designed to obtain spectra with very high resolution (up to 10&lt;sup&gt;7&lt;/sup&gt;) in the far-infrared and sub-millimeter wavelengths not directly observable by ground-based telescopes. The HIFI instrument was an heterodyne receiver which provided spectroscopy in the continuous frequency range 480-1250 GHz (240-625 microns) and in the frequency range 1410-1910 GHz (157-213 microns). Herschel had two Announcement of Opportunities (AOs) for Open Time (OT) observations. The first in-flight AO for Open Time (OT1) was opened on 20 May 2010, with a deadline of 22 July 2010. For OT1, 241 observing programs were accepted and the total allocated observing time amounts to 6576.9 hours. The second in-flight AO for Open Time (OT2) was opened on 9 June 2011, with a deadline of 15 September 2011. There were parallel AOs for Guaranteed Time observations, GT1 and GT2, with separate deadlines. The Announcement of Opportunity (AO) for Herschel Key Programs (KP) was issued on 1 February 2007, with separate deadlines for guaranteed time (GT) and open time (OT) proposals. The whole Key Program AO process has now been completed, and by coincidence there were exactly the same number of KP GT and OT programs, in both cases 21 programs were awarded observing time. Taken together, these 42 observing programs contained 11,650 astronomical observation requests or AORs (AORs are the primary units of Herschel observing time and are effectively the Herschel &#39;observation units&#39;). The total allocated observing time for these programs was 11,257.7 hours, corresponding to approximately 57% of the nominally available Herschel routine mission science time. Herschel successfully made over 37,000 scientific observations before its helium cryogen was exhausted. The HSA is available at the Herschel Science Centre at &lt;a href="http://herschel.esac.esa.int/Science_Archive.shtml"&gt;http://herschel.esac.esa.int/Science_Archive.shtml&lt;/a&gt;, the Herschel help desk is at &lt;a href="http://herschel.esac.esa.int/esupport/"&gt;http://herschel.esac.esa.int/esupport/&lt;/a&gt;, the Herschel User Provided Data Products are available at &lt;a href="http://herschel.esac.esa.int/UserProvidedDataProducts.shtml"&gt;http://herschel.esac.esa.int/UserProvidedDataProducts.shtml&lt;/a&gt;, the Herschel Postcard Server is at &lt;a href="http://archives.esac.esa.int/hsa/aio/doc/postcardGallery.html"&gt;http://archives.esac.esa.int/hsa/aio/doc/postcardGallery.html&lt;/a&gt;, and the Herschel Observation Log is at&lt;a href="http://herschel.esac.esa.int/logrepgen/observationlist.do"&gt;http://herschel.esac.esa.int/logrepgen/observationlist.do&lt;/a&gt; This table was created by the HEASARC in October 2013 based on &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/VI/139"&gt;CDS Catalog VI/139&lt;/a&gt; file herschel.dat. This is a service provided by NASA HEASARC .
207. Herschel Space Observatory - SPIRE
ID:
ivo://nasa.heasarc/skyview/herschel-spire
Title:
Herschel Space Observatory - SPIRE
Short Name:
HERSCHEL SPIRE
Date:
07 Mar 2025
Publisher:
NASA/GSFC HEASARC
Description:
The Herschel SPIRE survey is Provenance: HERSCHEL Project. This is a service of NASA HEASARC.
208. Herschel Virgo Cluster Survey
ID:
ivo://irsa.ipac/Herschel/Images/HeVICS
Title:
Herschel Virgo Cluster Survey
Short Name:
HeVICS
Date:
26 Oct 2022 19:00:00
Publisher:
NASA/IPAC Infrared Science Archive
Description:
HeViCS is a survey of about 55 sq deg of the nearby Virgo galaxy cluster, obtained with the Herschel Space Observatory using the instruments PACS and SPIRE in parallel mode. It provides a wavelength coverage in five bands from about 100 to 600 microns. The science goals include: a) The detection of dust in the intra-cluster medium, b) Extended cold dust around galaxies, c) FIR-submm luminosity functions, d) The UV to sub-mm spectral energy distribution of galaxies of various morphological types, e) The detection of dust in dwarf and giant elliptical galaxies.
209. HETE-2 Timeline
ID:
ivo://nasa.heasarc/hete2tl
Title:
HETE-2 Timeline
Short Name:
HETE2
Date:
07 Mar 2025
Publisher:
NASA/GSFC HEASARC
Description:
The HETE2TL database table records the pointing direction of the HETE-2 boresight camera and the roll angle of the HETE-2 spacecraft at each given time, as determined by the aspect camera/optical sub-system aboard HETE-2. HETE-2 (the High Energy Transient Explorer) is an international mission designed to help unravel the mystery of Gamma-Ray Bursts (GRBs). The primary goal of HETE-2 is to determine the origin and nature of cosmic gamma-ray bursts (GRBs) by simultaneous observation of soft and medium X-rays and gamma-rays to provide precise localization of GRBs and identification of counterparts to these explosions. HETE-2 carries three science instruments: a set of wide-field gamma-ray spectrometers (FREGATE), a wide-field X-ray monitor (WXM, and a set of soft X-ray cameras (SXC) HETE-2 was launched on October 9, 2000, and declared fully operational on February 6, 2001. While this mission was active, this HEASARC database table was updated on a thrice-per-week basis, depending upon updates to the timeline file. The last update that was provided was in August 2006. Some duplicate entries were remove in June 2019. This is a service provided by NASA HEASARC .
210. HI All-Sky Continuum Survey
ID:
ivo://nasa.heasarc/skyview/408mhz
Title:
HI All-Sky Continuum Survey
Short Name:
408MHz
Date:
07 Mar 2025
Publisher:
NASA/GSFC HEASARC
Description:
This survey is a mosaic of data taken at Jodrell Bank, Effelsberg and Parkes telescopes. The data was distributed in the NRAO <i>Images from the Radio Sky</i> CD ROM. Provenance: Max Planck Institute for Radio Astronomy, generated by Glyn Haslam. This is a service of NASA HEASARC.

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