- ID:
- ivo://CDS.VizieR/J/MNRAS/392/733
- Title:
- The NEWPS catalog from WMAP 5-yr survey
- Short Name:
- J/MNRAS/392/733
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We have analysed the efficiency in source detection and flux density estimation of blind and non-blind detection techniques exploiting the MHW2 filter applied to the Wilkinson Microwave Anisotropy Probe (WMAP) 5-yr maps. A comparison with the AT20G bright source sample, with a completeness limit of 0.5Jy and accurate flux measurements at 20GHz, close to the lowest frequency of WMAP maps, has allowed us to assess the completeness and the reliability of the samples detected with the two approaches, as well as the accuracy of flux and error estimates, and their variations across the sky.
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- ID:
- ivo://CDS.VizieR/VIII/17
- Title:
- The North 20cm Survey
- Short Name:
- VIII/17
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This catalog contains a list of 30239 radio sources at 1.4GHz over the declination range of -5 to +82 degrees. This catalog is based on the Green Bank 1.4GHz Northern Sky Survey (Condon and Broderick, 1986, Cat. VIII/6) which was generated using the Green Bank 300 foot (91m) telescope. The threshold for identifying a 1.4GHz radio source was set at 100mJy. The catalog data include the source name, a confusion flag, right ascension (1950), declination (1950), 1.4GHz flux, a flag to indicate if the source is extended at 20cm, 4.85GHz flux (from Becker et al., 1991, Cat. VIII/13), a flag to indicate if the source is extended at 6cm, 365MHz flux (from the Texas Survey, Douglas et al. 1980; see Cat. VIII/42)), spectral index between 6 and 20 cm, and spectral index between 20 and 80 cm. Where possible, the source name is derived from the 6cm catalog of Becker et al. 1991 (Cat. VIII/13).
- ID:
- ivo://CDS.VizieR/J/MNRAS/373/1203
- Title:
- The outer Galaxy at 1420 and 408MHz
- Short Name:
- J/MNRAS/373/1203
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Arcminute-resolution radio continuum images at 408 and 1420MHz from the Canadian Galactic Plane Survey (CGPS) have been used to reexamine radio sources listed in the Kallas and Reich (1980A&AS...42..227K) catalogue. A sample of point sources with flat or rising spectra between 408 and 1420MHz has been compiled, and within this sample likely Gigahertz Peaked Spectrum sources have been identified.
- ID:
- ivo://CDS.VizieR/J/MNRAS/379/289
- Title:
- The outer Galaxy at 1420 and 408MHz. II.
- Short Name:
- J/MNRAS/379/289
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Arcminute-resolution radio continuum images at 408 and 1420MHz from the Canadian Galactic Plane Survey (CGPS) have been used to construct a new catalogue of extended radio sources found near the Galactic plane in the second quadrant of our Galaxy. In addition cross-identifications are made with other major radio catalogues and information is provided to facilitate the recovery of CGPS image data associated with each catalogued source.
- ID:
- ivo://CDS.VizieR/VIII/38
- Title:
- The Parkes-MIT-NRAO 4.85GHz (PMN) Surveys
- Short Name:
- VIII/38
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The PMN surveys were made using the Parkes 64-m radio telescope at a frequency of 4850 MHz with the NRAO multibeam receiver mounted at the prime focus (for a full description of the observations see Griffith & Wright, 1993, Paper I). The surveys had a spatial resolution (full width half-maximum: FWHM) of approximately 4'.2 and were made during 1990 June and November. The PMN surveys were divided into several zones. These zones are listed in the following table, together with approximate flux limits and survey areas. -------------------------------------------------------------- Zone Name DEC limits (degrees) Flux limits Area (sr) File -------------------------------------------------------------- SOUTHERN -87.5< dec <-37 20 to 50 mJy 2.50 pmns ZENITH -37 < dec <-29 72 mJy 0.67 pmnz TROPICAL -29 < dec < -9.5 42 mJy 2.01 pmnt EQUATORIAL -9.5< dec <+10.0 40 mJy 1.90 pmne --------------------------------------------------------------- a point source catalogue was compiled directly from each of the survey zones by using an optimum filter method, as described by Griffith & Wright in detail in Paper 1. In addition, a set of images was produced for each zone in a manner very similar to that used by Condon et al. for the northern survey <VIII/40> (See e.g. our Paper 4). These maps have an effective resolution (FWHM) of about 5 arcmin. For more details, refer to the publications listed below for the relevant zone.
- ID:
- ivo://CDS.VizieR/J/A+A/386/97
- Title:
- The Parkes quarter-Jansky flat-spectrum sample
- Short Name:
- J/A+A/386/97
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a new sample of quarter-Jansky flat-spectrum radio sources selected to search for high-redshift quasars and to study the evolution of the flat-spectrum quasar population. The sample comprises 878 radio sources selected from the Parkes catalogues with spectral indices {alpha}^5GHz^_2.7GHz_>=-0.4 where S_{nu}{prop.to}{nu}^{alpha}. The sample covers all right ascensions and the declination range from -80.0{deg} to +2.5{deg}, excluding low galactic latitudes (|b|<10{deg}) and the Magellanic Cloud regions. We have obtained improved radio source positions, firstly to reconfirm the majority of the existing identifications, and secondly, using digitized sky-survey data and deep B, Gunn-i and Gunn-z CCD-imaging, to find optical identifications for 223 previously-unidentified sources. We present the final catalogue of 878 flat-spectrum sources: 827 are compact radio sources identified with galaxies, quasars and BL Lac objects, 38 have either extended radio structure or are identified with Galactic objects (PN, HII or non-compact radio source), 4 are obscured by Galactic stars, and 9 (1 per cent of the total sample) remain unidentified.
- ID:
- ivo://CDS.VizieR/J/ApJ/822/93
- Title:
- The population of compact radio sources in ONC
- Short Name:
- J/ApJ/822/93
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a deep centimeter-wavelength catalog of the Orion Nebula Cluster (ONC), based on a 30hr single-pointing observation with the Karl G. Jansky Very Large Array in its high-resolution A-configuration using two 1GHz bands centered at 4.7 and 7.3GHz. A total of 556 compact sources were detected in a map with a nominal rms noise of 3{mu}Jy/bm, limited by complex source structure and the primary beam response. Compared to previous catalogs, our detections increase the sample of known compact radio sources in the ONC by more than a factor of seven. The new data show complex emission on a wide range of spatial scales. Following a preliminary correction for the wideband primary-beam response, we determine radio spectral indices for 170 sources whose index uncertainties are less than +/-0.5. We compare the radio to the X-ray and near-infrared point-source populations, noting similarities and differences.
- ID:
- ivo://CDS.VizieR/J/A+A/507/795
- Title:
- The RMS survey: water masers of YSOs
- Short Name:
- J/A+A/507/795
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The red MSX source (RMS) survey has identified a large sample of candidate massive young stellar objects (MYSOs) and ultra compact (UC) HII regions from a sample of ~2000 MSX and 2MASS colour selected sources. To search for H_2_O masers towards a large sample of young high mass stars and to investigate the statistical correlation of H_2_O masers with the earliest stages of massive star formation. We have used the Mopra Radio telescope to make position-switched observations towards ~500 UCHII regions and MYSOs candidates identified from the RMS survey and located between 190{deg}<l<30{deg}. These observations have a 4{sigma} sensitivity of ~1Jy and a velocity resolution of ~0.4km/s.
- ID:
- ivo://CDS.VizieR/J/ApJS/183/17
- Title:
- The SDSS DR5/XMM-Newton quasar survey
- Short Name:
- J/ApJS/183/17
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a catalog of 792 Fifth Data Release Sloan Digital Sky Survey quasars with optical spectra that have been observed serendipitously in the X-rays with the XMM-Newton. These quasars cover a redshift range of z=0.11-5.41 and a magnitude range of i=15.3-20.7. Substantial numbers of radio-loud (70) and broad absorption line (51) quasars exist within this sample. Significant X-ray detections at >=2{sigma} account for 87% of the sample (685 quasars), and 473 quasars are detected at >=6{sigma}, sufficient to allow X-ray spectral fits. For detected sources, ~60% have X-ray fluxes between F_2-10keV_=(1-10)x10^-14^erg/cm^2^/s. We fit a single power law, a fixed power law with intrinsic absorption left free to vary, and an absorbed power-law model to all quasars with X-ray signal-to-noise ratio >=6, resulting in a weighted mean photon index {Gamma}=1.91+/-0.08, with an intrinsic dispersion {sigma}_{Gamma}_=0.38.
- ID:
- ivo://CDS.VizieR/J/ApJS/241/34
- Title:
- The SDSS Reverberation Mapping (SDSS-RM) project
- Short Name:
- J/ApJS/241/34
- Date:
- 07 Mar 2022 07:38:42
- Publisher:
- CDS
- Description:
- We present a detailed characterization of the 849 broad-line quasars from the Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project. Our quasar sample covers a redshift range of 0.1<z<4.5 and is flux-limited to i_PSF_<21.7 without any other cuts on quasar properties. The main sample characterization includes: (1) spectral measurements of the continuum and broad emission lines for individual objects from the coadded first-season spectroscopy in 2014, (2) identification of broad and narrow absorption lines in the spectra, and (3) optical variability properties for continuum and broad lines from multi-epoch spectroscopy. We provide improved systemic redshift estimates for all quasars and demonstrate the effects of the signal-to-noise ratio on the spectral measurements. We compile measured properties for all 849 quasars along with supplemental multi-wavelength data for subsets of our sample from other surveys. The SDSS-RM sample probes a diverse range in quasar properties and shows well-detected continuum and broad-line variability for many objects from first-season monitoring data. The compiled properties serve as the benchmark for follow-up work based on SDSS-RM data.
