- ID:
- ivo://CDS.VizieR/J/A+A/594/A27
- Title:
- Planck Sunyaev-Zeldovich sources (PSZ2)
- Short Name:
- J/A+A/594/A27
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the all-sky Planck catalogue of Sunyaev-Zeldovich (SZ) sources detected from the 29 month full-mission data. The catalogue (PSZ2) is the largest SZ-selected sample of galaxy clusters yet produced and the deepest systematic all-sky survey of galaxy clusters. It contains 1653 detections, of which 1203 are confirmed clusters with identified counterparts in external data sets, and is the first SZ-selected cluster survey containing >10^3^ confirmed clusters. We present a detailed analysis of the survey selection function in terms of its completeness and statistical reliability, placing a lower limit of 83% on the purity. Using simulations, we find that the estimates of the SZ strength parameter Y_5R500_ are robust to pressure-profile variation and beam systematics, but accurate conversion to Y_500_ requires the use of prior information on the cluster extent. We describe the multi-wavelength search for counterparts in ancillary data, which makes use of radio, microwave, infrared, optical, and X-ray data sets, and which places emphasis on the robustness of the counterpart match. We discuss the physical properties of the new sample and identify a population of low-redshift X-ray under-luminous clusters revealed by SZ selection. These objects appear in optical and SZ surveys with consistent properties for their mass, but are almost absent from ROSAT X-ray selected samples.
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Search Results
- ID:
- ivo://CDS.VizieR/VI/31
- Title:
- Plate Centers, Epochs Lick/Mt. John Sky Survey
- Short Name:
- VI/31
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The "Lick Observatory Sky Atlas" (Lick Observatory, 1965) is a set of plates for 166 fields of 18 by 18 degrees, covering the sky from the north pole down to -30 degrees of declination. "The Mount John University Observatory Photographic Sky Survey" (Doughty et al., 1972) covers 142 similar fields from -15 degrees of declination down to the south pole. In the region of overlap, the fields are the same for the two surveys. Fields 1-46 of the Mount John survey cover the part of the sky (-45 degrees of declination to the south pole) not in the Lick survey; in a special limited edition published in 1972, this part is called the "Canterbury Sky Atlas" (Australia). The overlap between fields is 3 degrees. The plate scale is approximately 232 arc seconds per millimeter. The limiting magnitude is approximately 16. Neither survey is intended for astrometry or photometry; the Lick survey was originally done to obtain galaxy statistics (Shane and Wirtanen 1967). An excellent summary of several photographic sky surveys is given by Ingrao and Kasparian (1967). T. A. Nagy (1980) generated the dataset described, and also gathered most of the material used in the writing of this document.
1343. Plate Centers of POSS-II
- ID:
- ivo://CDS.VizieR/VI/114
- Title:
- Plate Centers of POSS-II
- Short Name:
- VI/114
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The catalog contains the coordinate of the plate centers forming the Second Epoch Palomar Oschin Schmidt Sky Survey (POSS-II), observed between 1985 and 2000, and covering the Northern sky. The survey was operated by the California Institute of Technology (CalTech) with funds from the National Science Foundation (NSF), the National Geographic Society, the Sloan Foundation, the Samuel Oschin Foundation, and the Eastman Kodak Corporation. The file "poss2.dat" was actually created from a merge of the UKST Plate Catalogue (Royal Obs. Edinburgh) and the POSS2 Photographic Survey Plate Logs (Naval Observatory)
- ID:
- ivo://CDS.VizieR/VI/30A
- Title:
- Plates of the ESO / SERC Sky Survey
- Short Name:
- VI/30A
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The "ESO/SRC Atlas of the Southern Sky" is a major tool for, among other things, the optical identification of sources in non-optical wavelengths. The catalog contains the coordinates of the plate centers, as well as the actual observation dates of the plates composing the ESO(B) Survey (also called the Quick Blue Survey) over in the period 1973/79, the ESO Red survey, observed in the period 1978/90, and the SRC-J survey at the Anglo-Australian telescope in the period 1974/1987.
- ID:
- ivo://CDS.VizieR/I/300
- Title:
- PM2000 Bordeaux Proper Motion catalogue
- Short Name:
- I/300
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a proper motion catalogue of 2 670 974 stars, covering the declination zone +11{deg}<{delta}<+18{deg}. The catalogue has a limiting magnitude V=16.2 (Bordeaux CCD meridian circle magnitude) and is complete down to V=15.4. Depending on magnitude, the positional precision at mean epoch ranges from 50 to 70mas and the precision of proper motions varies from 1.5mas/yr to 6mas/yr. Meridian V magnitudes are provided for all objects together with additional photometry from the 2MASS catalogue when available (99.5% of objects). Positions and proper motions are on the ICRS (International Celestial Reference System). Proper motions are derived from the comparison of the positional M2000 catalogue (systematic observations of the Bordeaux Carte du Ciel Zone with the meridian circle, completed in 2000) with positions derived from the reduction of 512 Carte du Ciel plates of the Bordeaux zone (scanned at the APM Cambridge), the AC2000.2 catalogue, the USNO-A2.0 catalogue and the unpublished Yellow Sky (YS) USNO catalogue. Systematic offsets in 2MASS positions and in UCAC2 proper motions were revealed from comparisons with PM2000.
- ID:
- ivo://CDS.VizieR/J/ApJS/90/173
- Title:
- PMN map catalog of radiosources
- Short Name:
- J/ApJS/90/173
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The Parkes-MIT-NRAO (PMN) southern survey was made with the NRAO 4.85GHz seven-beam receiver on the Parkes 64 m telescope during 1990 June, and maps covering the Omega = 2.5 sr declination band -88{deg}<Dec.<-37{deg} were constructed from the survey scans. We present a catalog of 15,045 discrete sources with angular sizes phi<~15arcmin and stronger than S~25mJy derived from these maps. Machine-readable versions of the catalog with either B1950 or J2000 positions, and a printed catalog with B1950 positions only, are available. The 4.85GHz weighted source counts S^(5/2)^n(S) between 30mJy and 10Jy were obtained and agree well with previous results.
1347. POGS-II ExGal catalog
- ID:
- ivo://CDS.VizieR/J/other/PASA/37.29
- Title:
- POGS-II ExGal catalog
- Short Name:
- J/other/PASA/37.
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The low-frequency linearly polarised radio source population is largely unexplored. However, a renaissance in low-frequency polarimetry has been enabled by pathfinder and precursor instruments for the Square Kilometre Array. In this second paper from the POlarised GaLactic and Extragalactic All-Sky MWA Survey-the POlarised GLEAM Survey, or POGS-we present the results from our all-sky MWA Phase I Faraday Rotation Measure survey. Our survey covers nearly the entire Southern sky in the Declination range -82{deg} to +30{deg} at a resolution between around three and seven arcminutes (depending on Declination) using data in the frequency range 169-231MHz. We have performed two targeted searches: the first covering 25489 square degrees of sky, searching for extragalactic polarised sources; the second covering the entire sky South of Declination +30{deg}, searching for known pulsars. We detect a total of 517 sources with 200MHz linearly polarised flux densities between 9.9mJy and 1.7Jy, of which 33 are known radio pulsars. All sources in our catalogues have Faraday rotation measures in the range -328.07rad/m^2^ to +279.62rad/m^2^. The Faraday rotation measures are broadly consistent with results from higher-frequency surveys, but with typically more than an order of magnitude improvement in the precision, highlighting the power of low-frequency polarisation surveys to accurately study Galactic and extragalactic magnetic fields. We discuss the properties of our extragalactic and known-pulsar source population, how the sky distribution relates to Galactic features, and identify a handful of new pulsar candidates among our nominally extragalactic source population.
- ID:
- ivo://CDS.VizieR/J/ApJ/512/125
- Title:
- Polarization of broad absorption line QSOs
- Short Name:
- J/ApJ/512/125
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the combined results of optical polarization surveys of QSOs showing broad absorption lines (BALQSOs) conducted at the Steward and McDonald Observatories. The merged list of 53 objects provides the first statistical justification for claims of the tendency of BALQSOs to show stronger than average polarization, with a typical BALQSO being polarized a factor 2.4 times greater than a QSO from an optical survey selected without regard for absorption lines. Spectropolarimetry of sufficient quality to distinguish the polarization of emission lines versus absorption troughs versus continuum is also presented for six objects from the survey.
- ID:
- ivo://CDS.VizieR/J/ApJS/212/15
- Title:
- Polarized NVSS sources SEDs
- Short Name:
- J/ApJS/212/15
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- An understanding of cosmic magnetism requires converting the polarization properties of extragalactic radio sources into the rest-frame in which the corresponding polarized emission or Faraday rotation is produced. Motivated by this requirement, we present a catalog of multiwavelength linear polarization and total intensity radio data for polarized sources from the NRAO VLA Sky Survey. We cross-match these sources with a number of complementary measurements --combining data from major radio polarization and total intensity surveys such as AT20G, B3-VLA, GB6, NORTH6CM, Texas, and WENSS, together with other polarization data published over the last 50 years. For 951 sources, we present spectral energy distributions (SEDs) in both fractional polarization and total intensity, each containing between 3 and 56 independent measurements from 400MHz to 100GHz. We physically model these SEDs, and where available provide the redshift of the optical counterpart. For a superset of 25649 sources we provide the total intensity spectral index, {alpha}. Objects with steep versus flat {alpha} generally have different polarization SEDs: steep-spectrum sources exhibit depolarization, while flat-spectrum sources maintain constant polarized fractions over large ranges in wavelength. This suggests the run of polarized fraction with wavelength is predominantly affected by the local source environment, rather than by unrelated foreground magnetoionic material. In addition, a significant fraction (21%) of sources exhibit "repolarization," which further suggests that polarized SEDs are affected by different emitting regions within the source, rather than by a particular depolarization law. This has implications for the physical interpretation of future broadband polarimetric surveys.
- ID:
- ivo://CDS.VizieR/VII/149
- Title:
- Positions of high-redshift luminous quasars
- Short Name:
- VII/149
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present finding charts and J2000 positions accurate to ~1" for the 528 high-redshift (z>1), luminous (M_v_<-25.5) quasars investigated in the Hubble Space Telescope Snapshot Survey. The information was produced with the Space Telescope Science Institute's Astrometric Support Program.
