- ID:
- ivo://CDS.VizieR/J/AJ/106/831
- Title:
- cD clusters of galaxies. I.
- Short Name:
- J/AJ/106/831
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the initial results of a spectroscopic study of a sample of cD galaxy clusters. The goal of this program is to study the dynamics of the clusters, with emphasis on determining the nature and frequency of peculiar velocity cD galaxies. In this paper we present redshifts for 611 galaxies in the fields of the rich Abell clusters A193, A399, A401, A1795, A1809, A2063, and A2124. We discuss our data reduction techniques, and compare our derived velocities with previously published values. We find a frequency of emission line galaxies of ~6% in clusters, a factor of 2-3 less than the field.
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- ID:
- ivo://CDS.VizieR/J/AJ/116/1529
- Title:
- cD clusters of galaxies. III.
- Short Name:
- J/AJ/116/1529
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the final observational data for a spectroscopic study of a sample of cD galaxy clusters. The goal of this program has been to study the dynamics of the clusters, with emphasis on determining the nature and frequency of peculiar-velocity cD galaxies. In this paper we present redshifts for 762 galaxies in the fields of the rich Abell clusters A779, A1691, A1749, A1767, A1837, A1927, A2067, A2079, A2089, A2199, and A2666. We also present preliminary dynamical properties for these clusters using our measured redshifts.
- ID:
- ivo://CDS.VizieR/J/A+A/509/A62
- Title:
- CdC-SF: a precise proper motion catalogue
- Short Name:
- J/A+A/509/A62
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The historic plates of the Carte du Ciel, an international cooperative project launched in 1887, offer valuable first-epoch material for the determination of absolute proper motions. We present the CdC-SF, an astrometric catalogue of positions and proper motions derived from the Carte du Ciel plates of the San Fernando zone, photographic material with a mean epoch of 1901.4 and a limiting magnitude of V~16, covering the declination range of -10{deg}<=DE<=-2{deg}. ************************************************************************** * * * Sorry, but the author(s) never supplied the tabular material * * announced in the paper * * * **************************************************************************
- ID:
- ivo://CDS.VizieR/J/A+AS/142/353
- Title:
- CDD V photometry of B2 radio galaxies
- Short Name:
- J/A+AS/142/353
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The results of V-band CCD photometry for 72 low-luminosity radio galaxies from the B2 sample is presented. Most of these galaxies are of early type and their photometric and morphological properties are studied in the paper. We present the resulting surface brightness profiles and isophote parameters' profiles, including ellipticity, position angle, and B4, for 59 galaxies.
- ID:
- ivo://CDS.VizieR/J/AJ/135/1505
- Title:
- CDFs AGNs X-ray power-law photon index
- Short Name:
- J/AJ/135/1505
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present results from a statistical analysis of 173 bright radio-quiet active galactic nuclei (AGNs) selected from the Chandra Deep Field-North and Chandra Deep Field-South surveys (hereafter, CDFs) in the redshift range of 0.1<~<~4. We find that the X-ray power-law photon index ({Gamma}) of radio-quiet AGNs is correlated with their 2-10keV rest-frame X-ray luminosity (LX) at the >99.5% confidence level in two redshift bins: 0.3~<z~<0.96, and 1.5~<z~<3.3 and is slightly less significant in the redshift bin 0.96~<z~<1.5.
- ID:
- ivo://CDS.VizieR/J/ApJS/179/19
- Title:
- CDFS survey: 2 Ms source catalogs
- Short Name:
- J/ApJS/179/19
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present point-source catalogs for the ~2Ms exposure of the Chandra Deep Field-South (CDF-S) this is one of the two most sensitive X-ray surveys ever performed. The survey covers an area of ~436arcmin^2^ and reaches on-axis sensitivity limits of ~1.9x10^-17^ and ~1.3x10^-16^ergs/cm^2^/s for the 0.5-2.0 and 2-8keV bands, respectively. Four hundred and sixty-two X-ray point sources are detected in at least one of three X-ray bands that were searched; 135 of these sources are new compared to the previous ~1Ms CDF-S detections. Source positions are determined using centroid and matched-filter techniques; the median positional uncertainty is ~0.36". The X-ray-to-optical flux ratios of the newly detected sources indicate a variety of source types; ~55% of them appear to be active galactic nuclei, while ~45% appear to be starburst and normal galaxies. In addition to the main Chandra catalog, we provide a supplementary catalog of 86 X-ray sources in the ~2Ms CDF-S footprint that was created by merging the ~250ks Extended Chandra Deep Field-South with the CDF-S this approach provides additional sensitivity in the outer portions of the CDF-S. A second supplementary catalog that contains 30 X-ray sources was constructed by matching lower significance X-ray sources to bright optical counterparts (R<23.8) the majority of these sources appear to be starburst and normal galaxies. The total number of sources in the main and supplementary catalogs is 578. Optical R-band counterparts and basic optical and infrared photometry are provided for the X-ray sources in the main and supplementary catalogs. We also include existing spectroscopic redshifts for 224 of the X-ray sources.
3227. C2D Full CLOUDS Catalog
- ID:
- ivo://irsa.ipac/Spitzer/Catalog/C2D/C2D-FCLOUDS
- Title:
- C2D Full CLOUDS Catalog
- Short Name:
- C2D-FCLOUDS
- Date:
- 01 Oct 2018 20:27:16
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Cores to Disks (C2D) Spitzer Legacy Program used all three Spitzer instruments (IRAC, MIPS, and IRS) to observe sources that span the evolutionary sequence from molecular cores to protoplanetary disks, encompassing a wide range of cloud masses, stellar masses, and star-forming environments. In addition to targeting about 150 known compact cores, it surveyed with IRAC and MIPS (3.6-70 mum) the entire areas of five of the nearest large molecular clouds for new candidate protostars and substellar objects as faint as 0.001 solar luminosities. C2D observed with IRAC and MIPS about 190 systems likely to be in the early stages of planetary system formation (ages up to about 10 Myr), probing the evolution of the circumstellar dust, the raw material for planetary cores. The Full CLOUDS Catalog provides the most complete but least reliable list of sources in the C2D CLOUDS fields (ChamaeleonII (CHA_II), Lupus (LUP), Ophiuchus (OPH), Perseus (PER) and Serpens (SER)).
3228. C2D Full CORES Catalog
- ID:
- ivo://irsa.ipac/Spitzer/Catalog/C2D/C2D-FCORES
- Title:
- C2D Full CORES Catalog
- Short Name:
- C2D-FCORES
- Date:
- 01 Oct 2018 20:27:17
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Cores to Disks (C2D) Spitzer Legacy Program used all three Spitzer instruments (IRAC, MIPS, and IRS) to observe sources that span the evolutionary sequence from molecular cores to protoplanetary disks, encompassing a wide range of cloud masses, stellar masses, and star-forming environments. In addition to targeting about 150 known compact cores, it surveyed with IRAC and MIPS (3.6-70 mum) the entire areas of five of the nearest large molecular clouds for new candidate protostars and substellar objects as faint as 0.001 solar luminosities. C2D observed with IRAC and MIPS about 190 systems likely to be in the early stages of planetary system formation (ages up to about 10 Myr), probing the evolution of the circumstellar dust, the raw material for planetary cores. The Full CORES Catalog provides the most complete but least reliable list of sources in the C2D CORES fields (82 small cloud cores).
- ID:
- ivo://irsa.ipac/Spitzer/Catalog/C2D/C2D-FOFFCLOUDS
- Title:
- C2D Full OFF-CLOUD Catalog
- Short Name:
- C2D-FOFFCLOUDS
- Date:
- 01 Oct 2018 20:27:17
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Cores to Disks (C2D) Spitzer Legacy Program used all three Spitzer instruments (IRAC, MIPS, and IRS) to observe sources that span the evolutionary sequence from molecular cores to protoplanetary disks, encompassing a wide range of cloud masses, stellar masses, and star-forming environments. In addition to targeting about 150 known compact cores, it surveyed with IRAC and MIPS (3.6-70 mum) the entire areas of five of the nearest large molecular clouds for new candidate protostars and substellar objects as faint as 0.001 solar luminosities. C2D observed with IRAC and MIPS about 190 systems likely to be in the early stages of planetary system formation (ages up to about 10 Myr), probing the evolution of the circumstellar dust, the raw material for planetary cores. The Full OFF-CLOUD Catalog provides the most complete but least reliable list of sources in the C2D OFF-CLOUDS fields (ChamaeleonII (CHA_II), Lupus (LUP), Ophiuchus (OPH), Perseus (PER) and Serpens (SER)).
3230. C2D Full STARS Catalog
- ID:
- ivo://irsa.ipac/Spitzer/Catalog/C2D/C2D-FSTARS
- Title:
- C2D Full STARS Catalog
- Short Name:
- C2D-FSTARS
- Date:
- 01 Oct 2018 20:27:17
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Cores to Disks (C2D) Spitzer Legacy Program used all three Spitzer instruments (IRAC, MIPS, and IRS) to observe sources that span the evolutionary sequence from molecular cores to protoplanetary disks, encompassing a wide range of cloud masses, stellar masses, and star-forming environments. In addition to targeting about 150 known compact cores, it surveyed with IRAC and MIPS (3.6-70 mum) the entire areas of five of the nearest large molecular clouds for new candidate protostars and substellar objects as faint as 0.001 solar luminosities. C2D observed with IRAC and MIPS about 190 systems likely to be in the early stages of planetary system formation (ages up to about 10 Myr), probing the evolution of the circumstellar dust, the raw material for planetary cores. The Full STARS Catalog provides the most complete but least reliable list of sources in the C2D STARS fields (160 targeted stars).
