Number of results to display per page
Search Results
- ID:
- ivo://CDS.VizieR/J/A+A/647/A89
- Title:
- The OTELO survey as morphological probe
- Short Name:
- J/A+A/647/A89
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The morphology of galaxies provide us with a unique tool to connect and understand other related physical properties and their changes over the course of cosmic time. Only recently, thanks to big and/or deep surveys, we have access to a wealth of data for unprecedented number galaxies. The morphological catalogue of the OTELO survey galaxies detected in Hubble Space Telescope (HST)-ACS F814W images is presented. We explore various methods from previous works to separate early-type (ET) and late-type (LT) galaxies classified via spectral energy distribution (SED) fittings using galaxy templates. Together with this article we release the catalogue containing main morphological parameters in F606W and F814W bands derived for more than 8000 sources. The morphological analysis is based on the single-Sersic profile fit. The GALAPAGOS-2 software was used in order to provide multi-wavelength morphological parameters fitted simultaneously in two HST-ACS bands. GALAPAGOS-2 detects, prepares guess values for GALFIT-M, and provides the best-fitting single-Sersic model in both bands for each source. Stellar masses were estimated using synthetic rest-frame magnitudes recovered from SED-fitting of galaxy templates. The morphological catalogue is complemented with concentration indexes from a separate SExtractor dual, high dynamical range mode. A total of 8812 sources were successfully fitted with single-Sersic profiles. The analysis of a carefully selected sample of ~3000 sources up to z_phot=2 is presented in this work, from which 873 sources were not detected in previous studies. We found no statistical evidence for the evolution of low-mass end of mass-size relation for ET and LT since z=2. Furthermore, we found a good agreement on the median size evolution for ET and LT galaxies, for a given stellar-mass, with data in the literature. Compared to previous works on faint field galaxies, we found similarities regarding rest-frame colours, Sersic and concentration indices.
- 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://org.gavo.dc/pcslg/q/ssa
- Title:
- The Panchromatic High-Resolution Spectroscopic Survey of Local Group Star Clusters PCSLG
- Short Name:
- PCSLG SSAP
- Date:
- 27 Dec 2024 08:31:12
- Publisher:
- The GAVO DC team
- Description:
- This dataset contains spectroscopic observations of 29 globular clusters in the Magellanic Clouds and the Milky Way performed with VLT/X-shooter over eight full nights.
- ID:
- ivo://CDS.VizieR/J/ApJ/750/99
- Title:
- The Pan-STARRS1 photometric system
- Short Name:
- J/ApJ/750/99
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The Pan-STARRS1 survey is collecting multi-epoch, multi-color observations of the sky north of declination -30{deg} to unprecedented depths. These data are being photometrically and astrometrically calibrated and will serve as a reference for many other purposes. In this paper, we present our determination of the Pan-STARRS1 photometric system: g_P1_, r_P1_, i_P1_, z_P1_, y_P1_, and w_P1_. The Pan-STARRS1 photometric system is fundamentally based on the Hubble Space Telescope Calspec spectrophotometric observations, which in turn are fundamentally based on models of white dwarf atmospheres. We define the Pan-STARRS1 magnitude system and describe in detail our measurement of the system passbands, including both the instrumental sensitivity and atmospheric transmission functions. By-products, including transformations to other photometric systems, Galactic extinction, and stellar locus, are also provided. We close with a discussion of remaining systematic errors.
- ID:
- ivo://CDS.VizieR/II/349
- Title:
- The Pan-STARRS release 1 (PS1) Survey - DR1
- Short Name:
- II/349
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) is a system for wide-field astronomical imaging developed and operated by the Institute for Astronomy at the University of Hawaii. Pan-STARRS1 (PS1) is the first part of Pan-STARRS to be completed and is the basis for Data Release 1 (DR1). The PS1 survey used a 1.8m telescope and its 1.4 Gigapixel camera (GPC1) to image the sky in five broadband filters (g, r, i, z, y). PS1 took approximately 370000 exposures from 2010 to 2015. The PS1 camera surveyed the sky using 5 filters: g, r, i, z, and y. The effective wavelengths (and spectral resolutions) of these 5 filters are 481nm (R=3.5), 617nm (R=4.4), 752nm (R=5.8), 866nm (R=8.3), and 962nm (R=11.6), respectively. Please refer to Table 4 in Tonry+ (2012, J/ApJ/750/99) for bandpass details. Schlafly+ (2012ApJ...756..158S) provides updated zeropoints in Table 1. Data for this catalog has been retrieved from STScI and was built from ObjectThin and StackObjectThin tables with nDetections>2.
- 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://org.gavo.dc/10pcsample/q/cone
- Title:
- The 10 parsec sample in the Gaia era
- Short Name:
- 10pc SCS
- Date:
- 27 Dec 2024 08:31:06
- Publisher:
- The GAVO DC team
- Description:
- A catalogue of 541 nearby (within 10pc of the sun) stars, brown dwarfs, and confirmed exoplanets in 336 systems, as well 21 candidates, compiled from SIMBAD and several other sources. Where available, astrometry and photometry from Gaia eDR3 has been inserted.
