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- 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.
- ID:
- ivo://irsa.ipac/Herschel/Images/HERITAGE
- Title:
- Herschel Inventory of the Agents of Galaxy Evolution
- Short Name:
- HERITAGE
- Date:
- 27 Oct 2022 19:00:00
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The HERschel Inventory of The Agents of Galaxy Evolution (HERITAGE) open time key program mapped the Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC) at 100, 160, 250, 350, and 500 microns using Herschel's PACS and SPIRE instruments. The overriding science goal of HERITAGE is to study the life cycle of matter as traced by dust in the LMC and SMC.
174. 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.
- ID:
- ivo://irsa.ipac/Herschel/Images/HerM33es
- Title:
- Herschel M33 Extended Survey
- Short Name:
- HerM33es
- Date:
- 27 Oct 2022 19:00:00
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- Herschel PACS and SPIRE images of M33
- ID:
- ivo://irsa.ipac/Herschel/Images/HerMES
- Title:
- Herschel Multi-tiered Extragalactic Survey
- Short Name:
- HerMES
- Date:
- 27 Oct 2022 19:00:00
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Herschel Multi-tiered Extragalactic Survey (HerMES) is a legacy programme (KPGT_soliver1) designed to map a set of nested fields totalling 380 sq. deg. Fields range in size from 0.01 to 20 sq. deg., using SPIRE at 250, 350 and 500 microns. These bands cover the peak of the redshifted thermal spectral energy distribution from interstellar dust and thus capture the reprocessed optical and ultraviolet radiation from star formation that has been absorbed by dust, and are critical for forming a complete multiwavelength understanding of galaxy formation and evolution.
- 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.
- ID:
- ivo://irsa.ipac/Herschel/Images/SHPDP
- Title:
- Herschel SPIRE Highly Processed Data Products
- Short Name:
- SHPDP
- Date:
- 04 Oct 2024 00:04:13
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- SPIRE Highly Processed Data Products are available for two data sets: the spectrometer calibration sources and re-gridded hyper-spectral cubes for 22 mapping observations.
- ID:
- ivo://irsa.ipac/Herschel/Catalog/SPSC/SPSC350
- Title:
- Herschel SPIRE Point Source Catalog: 350 microns
- Short Name:
- SPSC350
- Date:
- 01 Oct 2018 20:27:20
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Herschel-SPIRE instrument mapped about 9% of the sky in Submillimeter broad-band filters centered at 250, 350, and 500 microns (1199, 857, 600 GHz) with spatial resolutions of 17.9", 24.2", 35.4" respectively. In total, we used the 6878 standard configuration scan maps that are available, including calibration observations. The SPIRE Point Source Catalog contains the result of a systematic and homogeneous source extraction on those maps using 4 different photometry extraction methods. Only regions affected by strong Galactic emission, mostly in the Galactic Plane, were excluded, as they tested the limits of the available source extraction methods. Aimed primarily at point sources, that allow for the best photometric accuracy, the catalog contains also significant fractions of slightly extended sources up to a limit. With most SPIRE maps being confusion limited, uncertainties in flux densities were established as a function of structure noise and flux density, based on the results of artificial source insertion experiments into real data along a range of celestial backgrounds. Many sources have been rejected that do not pass the imposed SNR threshold, especially at flux densities approaching the extragalactic confusion limit. A range of additional flags provide information on the reliability of the flux information, as well as the spatial extent and orientation of a source. Users are encouraged to check the flux density estimates of all 4 methods and follow the guidelines given in the Explanatory Supplement regarding their interpretation for point- and extended sources. For tracing back catalog objects to the originally contributing detections in SPIRE observations, a cross identification table is available that provides the relevant observation identifiers used by the Herschel Science Archive. For further details on catalog construction, detailed content, and validation, please see the Explanatory Supplement.
- ID:
- ivo://irsa.ipac/Herschel/Catalog/SPSC/SPSC500
- Title:
- Herschel SPIRE Point Source Catalog: 500 microns
- Short Name:
- SPSC500
- Date:
- 01 Oct 2018 20:27:20
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Herschel-SPIRE instrument mapped about 9% of the sky in Submillimeter broad-band filters centered at 250, 350, and 500 microns (1199, 857, 600 GHz) with spatial resolutions of 17.9", 24.2", 35.4" respectively. In total, we used the 6878 standard configuration scan maps that are available, including calibration observations. The SPIRE Point Source Catalog contains the result of a systematic and homogeneous source extraction on those maps using 4 different photometry extraction methods. Only regions affected by strong Galactic emission, mostly in the Galactic Plane, were excluded, as they tested the limits of the available source extraction methods. Aimed primarily at point sources, that allow for the best photometric accuracy, the catalog contains also significant fractions of slightly extended sources up to a limit. With most SPIRE maps being confusion limited, uncertainties in flux densities were established as a function of structure noise and flux density, based on the results of artificial source insertion experiments into real data along a range of celestial backgrounds. Many sources have been rejected that do not pass the imposed SNR threshold, especially at flux densities approaching the extragalactic confusion limit. A range of additional flags provide information on the reliability of the flux information, as well as the spatial extent and orientation of a source. Users are encouraged to check the flux density estimates of all 4 methods and follow the guidelines given in the Explanatory Supplement regarding their interpretation for point- and extended sources. For tracing back catalog objects to the originally contributing detections in SPIRE observations, a cross identification table is available that provides the relevant observation identifiers used by the Herschel Science Archive. For further details on catalog construction, detailed content, and validation, please see the Explanatory Supplement.
