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821. Herschel + MIPS photometry of GOODS sources
ID:
ivo://CDS.VizieR/J/ApJ/759/139
Title:
Herschel + MIPS photometry of GOODS sources
Short Name:
J/ApJ/759/139
Date:
21 Oct 2021
Publisher:
CDS
Description:
We explore the effects of active galactic nuclei (AGNs) and star formation activity on the infrared (0.3-1000{mu}m) spectral energy distributions (SEDs) of luminous infrared galaxies from z=0.5 to 4.0. We have compiled a large sample of 151 galaxies selected at 24{mu}m (S_24_>~100{mu}Jy) in the GOODS-N and ECDFS fields for which we have deep Spitzer IRS spectroscopy, allowing us to decompose the mid-IR spectrum into contributions from star formation and AGN activity. A significant portion (~25%) of our sample is dominated by an AGN (>50% of the mid-IR luminosity) in the mid-IR. Based on the mid-IR classification, we divide our full sample into four sub-samples: z~1 star-forming (SF) sources, z~2 SF sources, AGNs with clear 9.7{mu}m silicate absorption, and AGNs with featureless mid-IR spectra. From our large spectroscopic sample and wealth of multi-wavelength data, including deep Herschel imaging at 100, 160, 250, 350, and 500{mu}m, we use 95 galaxies with complete spectral coverage to create a composite SED for each sub-sample. We then fit a two-temperature component modified blackbody to the SEDs. We find that the IR SEDs have similar cold dust temperatures, regardless of the mid-IR power source, but display a marked difference in the warmer dust temperatures. We calculate the average effective temperature of the dust in each sub-sample and find a significant (~20K) difference between the SF and AGN systems. We compare our composite SEDs to local templates and find that local templates do not accurately reproduce the mid-IR features and dust temperatures of our high-redshift systems. High-redshift IR luminous galaxies contain significantly more cool dust than their local counterparts. We find that a full suite of photometry spanning the IR peak is necessary to accurately account for the dominant dust temperature components in high-redshift IR luminous galaxies.
822. Herschel Multi-tiered Extragalactic Survey
ID:
ivo://CDS.VizieR/VIII/95
Title:
Herschel Multi-tiered Extragalactic Survey
Short Name:
VIII/95
Date:
21 Oct 2021
Publisher:
CDS
Description:
The Herschel Multi-tiered Extragalactic Survey (HerMES) is a legacy programme designed to map a set of nested fields totalling ~380deg^2^. Fields range in size from 0.01 to ~20deg^2^, using the Herschel-Spectral and Photometric Imaging Receiver (SPIRE) (at 250, 350 and 500um) and the Herschel-Photodetector Array Camera and Spectrometer (PACS) (at 100 and 160um), with an additional wider component of 270deg^2^ with SPIRE alone. 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.
823. Herschel Multi-tiered Extragalactic Survey
ID:
ivo://CDS.VizieR/VIII/103
Title:
Herschel Multi-tiered Extragalactic Survey
Short Name:
VIII/103
Date:
21 Oct 2021
Publisher:
CDS
Description:
HerMES is the Herschel Multi-tiered Extragalactic Survey, an astronomical project to study the evolution of galaxies in the distant Universe.It is the largest project on ESA's Herschel Space Observatory (900 hours). You will find more information about it on the HerMES website (http://hedam.lam.fr/HerMES/). The project is carried out by a large team, made up primarily of people who built one of the instruments on Herschel called SPIRE.
824. Herschel-PACS North Ecliptic Pole Survey
ID:
ivo://CDS.VizieR/J/PASJ/71/13
Title:
Herschel-PACS North Ecliptic Pole Survey
Short Name:
J/PASJ/71/13
Date:
21 Oct 2021
Publisher:
CDS
Description:
A detailed analysis of Herschel-PACS observations at the North Ecliptic Pole has been made. High quality maps, covering an area of 0.44 square degrees, are produced and then used to derive new candidate source lists. A rigorous quality control pipeline has been used to create final legacy catalogues in the PACS Green 100um and Red 160um bands, containing 1385 and 630 sources respectively. These catalogues reach to more than twice the depth of the current archival Herschel/PACS Point Source Catalogue detecting 401 and 270 more sources in the short and long wavelength bands respectively. These counts have been used to construct galaxy source counts that extend down to flux densities of 6mJy and 19mJy (50% completeness) in the Green 100 micron and Red 160 micron bands respectively. These source counts are consistent with previously published PACS number counts in other fields across the sky. The source counts have been compared with galaxy evolution models identifying a population of luminous infrared galaxies as responsible for the bulk of the galaxy evolution over the flux range (5-100mJy) spanned by the observed counts, contributing approximate fractions of 50% and 60% to the cosmic infrared background (CIRB) at 100um and 160um respectively.
825. Herschel/PACS Point Source Catalogs
ID:
ivo://CDS.VizieR/VIII/106
Title:
Herschel/PACS Point Source Catalogs
Short Name:
VIII/106
Date:
22 Feb 2022
Publisher:
CDS
Description:
The Herschel Space Observatory was the fourth cornerstone mission in the European Space Agency (ESA) science programme. It had excellent broad band imaging capabilities in the far-infrared (FIR) and sub-millimetre part of the electromagnetic spectrum. Although the spacecraft finished observing in 2013, it left a large legacy dataset that is far from having been fully explored and still has a great potential for new scientific discoveries. The PACS and SPIRE photometric cameras observed about 8% of the sky in six different wavebands. This document describes the Herschel/PACS Point Source Catalogue (HPPSC), a FIR catalogue based on the broad-band photometric observations of the PACS instrument with filters centred at 70, 100 and 160um. We analysed all combined, Level 2.5/Level 3 Herschel/PACS photometric observations including 682 Parallel Mode, 12932 nominal mode and 1644 SSO maps. The PACS photometer maps that we produced were generated by applying the JScanam task of the Herschel Interactive Processing Environment (HIPE) v13.0.0. Sources were identified with the HIPE implementation of SUSSEXtractor, and the flux densities obtained by aperture photometry. We found a total of 108319 point sources that are considered to be reliable in the 70um maps, 131322 at 100um and 251392 point sources in the 160um maps. In addition, our quality control algorithm identified 546587 candidate sources that were found to be extended and 7185160 features which did not pass the signal-to-noise and other criteria to be considered reliable sources. These sources were included in the Extended Source List and Rejected Source List of the HPPSC, respectively. The calculated completeness and photometric accuracy values are based on simulations, where artificial sources were injected into the observational timeline with well controlled flux density values. The actual completeness is a complex function of the source flux, photometric band and the background complexity.
826. Herschel Space Observatory - SPIRE
ID:
ivo://nasa.heasarc/skyview/herschel-spire
Title:
Herschel Space Observatory - SPIRE
Short Name:
HERSCHEL SPIRE
Date:
25 Apr 2025
Publisher:
NASA/GSFC HEASARC
Description:
The Herschel SPIRE survey is Provenance: HERSCHEL Project. This is a service of NASA HEASARC.
827. Herschel Stripe 82 survey (HerS) first catalog
ID:
ivo://CDS.VizieR/J/ApJS/210/22
Title:
Herschel Stripe 82 survey (HerS) first catalog
Short Name:
J/ApJS/210/22
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present the first set of maps and band-merged catalog from the Herschel Stripe 82 Survey (HerS). Observations at 250, 350, and 500{mu}m were taken with the Spectral and Photometric Imaging Receiver (SPIRE) instrument aboard the Herschel Space Observatory. HerS covers 79deg^2^ along the SDSS Stripe 82 to an average depth of 13.0, 12.9, and 14.8mJy/beam (including confusion) at 250, 350, and 500{mu}m, respectively. HerS was designed to measure correlations with external tracers of the dark matter density field --either point-like (i.e., galaxies selected from radio to X-ray) or extended (i.e., clusters and gravitational lensing)-- in order to measure the bias and redshift distribution of intensities of infrared-emitting dusty star-forming galaxies and active galactic nuclei. By locating HerS in Stripe 82, we maximize the overlap with available and upcoming cosmological surveys. The band-merged catalog contains 3.3x10^4^ sources detected at a significance of >~3{sigma} (including confusion noise).
828. H.E.S.S. Galactic Plane Survey
ID:
ivo://CDS.VizieR/J/A+A/612/A1
Title:
H.E.S.S. Galactic Plane Survey
Short Name:
J/A+A/612/A1
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present the results of the most comprehensive survey of the Galactic plane in very high-energy (VHE) gamma-rays, including a public release of Galactic sky maps, a catalog of VHE sources, and the discovery of 16 new sources of VHE gamma-rays. The High Energy Spectroscopic System (H.E.S.S.) Galactic plane survey (HGPS) was a decade-long observation program carried out by the H.E.S.S. I array of Cherenkov telescopes in Namibia from 2004 to 2013. The observations amount to nearly 2700 h of quality-selected data, covering the Galactic plane at longitudes from l=250{deg} to 65{deg} and latitudes |b|<=3. In addition to the unprecedented spatial coverage, the HGPS also features a relatively high angular resolution (0.08{deg}~5-arcmin mean point spread function 68% containment radius), sensitivity (1.5% Crab flux for point-like sources), and energy range (0.2-100TeV). We constructed a catalog of VHE gamma-ray sources from the HGPS data set with a systematic procedure for both source detection and characterization of morphology and spectrum. We present this likelihood- based method in detail, including the introduction of a model component to account for unresolved, large-scale emission along the Galactic plane. In total, the resulting HGPS catalog contains 78 VHE sources, of which 14 are not reanalyzed here, for example, due to their complex morphology, namely shell-like sources and the Galactic center region. Where possible, we provide a firm identification of the VHE source or plausible associations with sources in other astronomical catalogs. We also studied the characteristics of the VHE sources with source parameter distributions. 16 new sources were previously unknown or unpublished, and we individually discuss their identifications or possible associations. We firmly identified 31 sources as pulsar wind nebulae (PWNe), supernova remnants (SNRs), composite SNRs, or gamma-ray binaries. Among the 47 sources not yet identified, most of them (36) have possible associations with cataloged objects, notably PWNe and energetic pulsars that could power VHE PWNe.
829. HES survey. IV. Candidate metal-poor stars
ID:
ivo://CDS.VizieR/J/A+A/484/721
Title:
HES survey. IV. Candidate metal-poor stars
Short Name:
J/A+A/484/721
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present the quantitative methods used for selecting candidate metal-poor stars in the Hamburg/ESO objective-prism survey (HES). The selection is based on the strength of the CaII K line, B-V colors (both measured directly from the digital HES spectra), as well as J-K colors from the 2 Micron All Sky Survey. The KP index for CaII K can be measured from the HES spectra with an accuracy of 1.0{AA}, and a calibration of the HES B-V colors, using CCD photometry, yields a 1-sigma uncertainty of 0.07mag for stars in the color range 0.3<B-V<1.4.
830. HETDEX pilot survey. II. 1.9<z<3.8 LAEs
ID:
ivo://CDS.VizieR/J/ApJ/736/31
Title:
HETDEX pilot survey. II. 1.9<z<3.8 LAEs
Short Name:
J/ApJ/736/31
Date:
21 Oct 2021
Publisher:
CDS
Description:
We study the escape of Ly{alpha} photons from Ly{alpha} emitting galaxies (LAEs) and the overall galaxy population using a sample of 99 LAEs at 1.9<z<3.8 detected through integral-field spectroscopy of blank fields by The Hobby Eberly Telescope Dark Energy Experiment Pilot Survey. For 89 LAEs with broadband counterparts we measure ultraviolet (UV) luminosities and UV slopes, and estimate E(B-V) under the assumption of a constant intrinsic UV slope for LAEs. These quantities are used to estimate dust-corrected star formation rates (SFRs). Comparison between the observed Ly{alpha} luminosity and that predicted by the dust-corrected SFR yields the Ly{alpha} escape fraction. We also measure the Ly{alpha} luminosity function and luminosity density ({rho}_Ly{alpha}_) at 2<z<4. Using this and other measurements from the literature at 0.3<z<7.7 we trace the redshift evolution of {rho}_Ly{alpha}_. We compare it to the expectations from the star formation history of the universe and characterize the evolution of the Ly{alpha} escape fraction of galaxies.

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