- ID:
- ivo://CDS.VizieR/J/ApJS/253/4
- Title:
- SuperBoRG: search HST parallel imaging data
- Short Name:
- J/ApJS/253/4
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The Hubble Space Telescope (HST) has been providing tremendous survey efficiency via its pure-parallel mode by observing another field in parallel with the primary instrument in operation for the primary observation. In this study, we present a new archival project, SuperBoRG, which aims at compiling data taken in extragalactic parallel programs of HST with the Wide Field Camera 3 in the past decade, including pure-parallel (BoRG, HIPPIES, and COS-GTO) and coordinated-parallel (CLASH and RELICS) programs. The total effective area reaches ~0.41deg^2^ from 4.1Ms, or 47days, of observing time, which is the largest collection of optical-to-near-infrared imaging data of HST for extragalactic science. We reduce all data in a consistent manner with an updated version of our data reduction pipeline, including a new sky background subtraction step. When available, imaging data from the Spitzer Space Telescope are also included in photometric analyses. The data set consists of 316 independent sight lines and is highly effective for identification of high-z luminous sources (M_UV_<~-20mag) at z~7-12, helping to minimize the effects of cosmic variance. As a demonstration, we present three new z>~7 source candidates, including one luminous galaxy candidate at z_phot_~10.4 with M_UV_~-21.9mag; the best-fit spectral energy distribution implies a large amount of stellar mass (logM_*_/M_{sun}_~10) and moderate dust attenuation (A_V_~1.4mag), though the possibility of it being a low-z interloper cannot be completely rejected (~23%) with the current data set. The data set presented in this study is also suited for intermediate- and low-z science cases.
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21072. SuperCLASS. I.
- ID:
- ivo://CDS.VizieR/J/MNRAS/495/1706
- Title:
- SuperCLASS. I.
- Short Name:
- J/MNRAS/495/1706
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The SuperCLuster Assisted Shear Survey (SuperCLASS) is a legacy programme using the e-MERLIN interferometric array. The aim is to observe the sky at L-band (1.4GHz) to a r.m.s. of 7uJy/beam over an area of 1 square degrees centred on the Abell 981 supercluster. The main scientific objectives of the project are: (i) to detect the effects of weak lensing in the radio in preparation for similar measurements that will be made by the Square Kilometre Array (SKA); (ii) an extinction free census of star formation and AGN activity at z up to 1. In this paper we give an overview of the project including the science goals and multi-wavelength coverage before presenting the first data release. We have analysed around 400 hours of e-MERLIN data which has allowed us to create a DR1 mosaic covering an area ~0.26 square degrees to the full depth. These observations have been supplemented with complementary radio observations from the Karl G. Jansky Very Large Array (VLA) and optical/near infra-red observations taken with the Subaru, Canada-France-Hawaii and Spitzer Telescopes. The main data product is a catalogue of 887 sources detected by the VLA, of which 395 are detected by e-MERLIN and 197 of these are resolved. We have investigated the size, flux and spectral index properties of these sources and find them to be compatible with previous studies. Preliminary photometric redshifts, and an assessment of galaxy shapes measured in the radio data, combined with a radio-optical cross-correlation technique to probe cosmic shear in a supercluster environment, are presented in companion papers.
- ID:
- ivo://CDS.VizieR/J/A+A/317/416
- Title:
- Superclustering in the field of Q1037-2704
- Short Name:
- J/A+A/317/416
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The table gives the characteristics of the absorption lines observed in the spectrum of Q1037-2704 from 3733 A to 5050 A.
- ID:
- ivo://CDS.VizieR/J/A+A/459/L1
- Title:
- Supercluster sample from SDSS DR4
- Short Name:
- J/A+A/459/L1
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We compile a supercluster sample using the Sloan Digital Sky Survey Data Release 4, and reanalyse supercluster samples found for the 2dF Galaxy Redshift Survey and for simulated galaxies of the Millennium Run. We find for all supercluster samples Density Field (DF) clusters, which represent high-density peaks of the class of Abell clusters, and use median luminosities of richness class 1 DF-clusters to calculate relative luminosity functions. We show that the fraction of very luminous superclusters in real samples is about five times greater than in simulated samples. Superclusters are generated by large-scale density perturbations that evolve very slowly. The absence of very luminous superclusters in simulations can be explained either by incorrect treatment of large-scale perturbations, or by some yet unknown processes in the very early Universe.
21075. Superclusters and voids
- ID:
- ivo://CDS.VizieR/J/MNRAS/269/301
- Title:
- Superclusters and voids
- Short Name:
- J/MNRAS/269/301
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We study the whole-sky distribution of rich clusters of galaxies up to the distance z~0.1 and present catalogues of superclusters and cluster-defined voids. The data on clusters, superclusters and voids show the presence of the characteristic scale of 130h^-1^Mpc in the supercluster-void network, found earlier by Broadhurst et al. (1990Natur.343..726B) from a one-dimensional study. This scale has been detected in the distribution of clusters of richnesses R=0 and R>=1. We perform tests to study the influence of projection effects. The clusters that do not belong to superclusters are located in the vicinity of superclusters and form their outlying parts. We compare the distribution of ACO clusters with that of APM clusters. The APM clusters determine a smaller scale: 100h^-1^Mpc. We discuss the possible reasons for this difference.
- ID:
- ivo://CDS.VizieR/J/AJ/122/2222
- Title:
- Superclusters of Abell and X-ray clusters
- Short Name:
- J/AJ/122/2222
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a new catalog of superclusters of Abell clusters out to a redshift of z_lim_=0.13, a catalog of X-ray clusters located in superclusters determined by Abell clusters, and a list of additional superclusters of X-ray clusters. We investigate the distribution of X-ray selected clusters of galaxies with respect to superclusters determined by Abell clusters of galaxies and show that the distribution of X-ray clusters follows the supercluster-void network determined by Abell clusters. We find that X-ray clusters are more strongly clustered than other clusters: the fraction of X-ray clusters is higher in rich superclusters, and the fraction of isolated X-ray clusters is lower than the fraction of isolated Abell clusters. Poor, non-Abell X-ray clusters follow the supercluster-void network as well: these clusters are embedded in superclusters determined by Abell clusters and populate filaments between them. This catalogue supersedes J/A+AS/123/119
- ID:
- ivo://CDS.VizieR/J/A+A/462/811
- Title:
- Superclusters of galaxies from 2dF
- Short Name:
- J/A+A/462/811
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We use the 2dF Galaxy Redshift Survey data to compile catalogues of superclusters for the Northern and Southern regions of the 2dFGRS, altogether 543 superclusters at redshifts 0.009<z<0.2. We apply the density field method using smoothing with an Epanechnikov kernel of radius 8Mpc. We derive positions of the highest luminosity density peaks and find the most luminous cluster in the vicinity of the peak, this cluster is considered as the main cluster and its brightest galaxy the main galaxy of the supercluster. In catalogues we give equatorial coordinates and distances of superclusters as determined by positions of their main clusters. We also calculate the expected total luminosities of the superclusters.
- ID:
- ivo://wfau.roe.ac.uk/ssa-dsa
- Title:
- SuperCOSMOS Science Archive (SSA)
- Short Name:
- SuperCOSMOS
- Date:
- 23 Jan 2024 09:44:26
- Publisher:
- WFAU, Institute for Astronomy, University of Edinburgh
- Description:
- The SuperCOSMOS data held in the SSA primarily originate from scans of Palomar and UK Schmidt blue, red and near-IR southern sky surveys. The ESO Schmidt R (dec < -17.5) and Palomar POSS-I E (dec > -17.5) surveys have also been scanned and provide a 1st epoch red measurement. Further details on the surveys, the scanning process and the raw parameters extracted can be found on the further information link. The SSA is housed in a relational database running on Microsoft SQL Server 2000. Data are stored in tables which are inter-linked via reference ID numbers. In addition to the astronomical object catalogues these tables also contain information on the plates that were scanned, survey field centres and calibration coefficients. Most user science queries will only need to access the SOURCE table or to a lesser extent the DETECTION table.
- ID:
- ivo://wfau.roe.ac.uk/ssa-dsa/ceaApplication
- Title:
- SuperCOSMOS Science Archive (SSA)
- Date:
- 17 Nov 2009 13:59:20
- Publisher:
- WFAU, Institute for Astronomy, University of Edinburgh
- Description:
- The SuperCOSMOS data held in the SSA primarily originate from scans of Palomar and UK Schmidt blue, red and near-IR southern sky surveys. The ESO Schmidt R (dec < -17.5) and Palomar POSS-I E (dec > -17.5) surveys have also been scanned and provide a 1st epoch red measurement. Further details on the surveys, the scanning process and the raw parameters extracted can be found on the further information link. The SSA is housed in a relational database running on Microsoft SQL Server 2000. Data are stored in tables which are inter-linked via reference ID numbers. In addition to the astronomical object catalogues these tables also contain information on the plates that were scanned, survey field centres and calibration coefficients. Most user science queries will only need to access the SOURCE table or to a lesser extent the DETECTION table.
- ID:
- ivo://wfau.roe.ac.uk/sss-siap
- Title:
- SuperCOSMOS Sky Surveys SSS SIAP Cutout Service
- Short Name:
- SuperCOSMOS SIAP
- Date:
- 09 Jul 2019 14:41:02
- Publisher:
- WFAU, Institute for Astronomy, University of Edinburgh
- Description:
- Simple image access to SuperCOSMOS Sky Surveys (SSS) images (scans of photographic survey plates)
