- ID:
- ivo://CDS.VizieR/J/ApJ/857/27
- Title:
- A catalog of post-starburst QSOs from SDSS-DR7Q
- Short Name:
- J/ApJ/857/27
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a catalog of nearby (z<=0.5) quasars with significant features of post-starburst stellar populations in their optical spectra: so-called post-starburst quasars, or PSQs. After carefully decomposing spectra from the Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) Quasar Catalog into quasar and host-galaxy components, we derive a sample of 208 PSQs. Their host-galaxy components have strong H{delta} absorption (EW>=6{AA}) indicating a significant contribution of an intermediate-aged stellar population formed in a burst of star formation within the past 1Gyr, which makes them potentially useful for studying the co-evolution of supermassive black holes and their host galaxies.
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- ID:
- ivo://CDS.VizieR/J/ApJS/185/1
- Title:
- A catalog of star formation and metallicity
- Short Name:
- J/ApJS/185/1
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We applied the VESPA algorithm to the Sloan Digital Sky Survey (DR7) of the Main Galaxies and Luminous Red Galaxies samples. The result is a catalog of stellar masses, detailed star formation and metallicity histories and dust content of nearly 800000 galaxies. We make the catalog public via a T-SQL database. We present the results using a range of stellar population and dust models, and will continue to update the catalog as new and improved models are made public. We also present a brief exploration of the catalog, and show that the quantities derived are robust: luminous red galaxies can be described by one to three populations, whereas a main galaxy sample galaxy needs on average two to five; red galaxies are older and less dusty; the dust values we recover are well correlated with measured Balmer decrements and star formation rates are also in agreement with previous measurements. We find that whereas some derived quantities are robust to the choice of modelling, many are still not.
- ID:
- ivo://CDS.VizieR/J/MNRAS/277/1477
- Title:
- A catalogue of BL Lacertae objects
- Short Name:
- J/MNRAS/277/1477
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a catalogue of 233 BL Lacertae objects compiled through an extensive bibliographic search updated to mid-1995. A large fraction of the sources listed in the catalogue belongs to well-defined samples and can be used for statistical purposes. A smaller fraction consists of miscellaneous (but confirmed) BL Lacs and of objects classified as BL Lac candidates. We discuss the selection criteria of the different samples, report the discovery of two previously unnoticed BL Lacs in the Palomar-Green survey, and comment on the possible association of some of the still unidentified high galactic latitude gamma-ray (EGRET, see Thompson et al., =1995ApJS..101..259T) sources with BL Lacs. Some statistical properties of the catalogue are also briefly discussed.
- ID:
- ivo://CDS.VizieR/V/138
- Title:
- A catalogue of cross-matched radio/infrared/X-ray sources
- Short Name:
- V/138
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a catalog of cross-correlated radio, infrared and X-ray sources using a very restrictive selection criteria with an IDL-based code developed by us. The significance of the observed coincidences was evaluated through Monte Carlo simulations of synthetic sources following a well-tested protocol. We found 3320 coincident radio/X-ray sources with a high statistical significance characterized by the sum of error-weighted coordinate differences. For 997 of them, 2MASS counterparts were found. The percentage of chance coincidences is less than 1%. X-ray hardness ratios of well-known populations of objects were used to provide a crude representation of their X-ray spectrum and to make a preliminary diagnosis of the possible nature of unidentified X-ray sources. The results support the fact that the X-ray sky is largely dominated by Active Galactic Nuclei at high galactic latitudes (|b|>=10deg). At low galactic latitudes (|b|<=10deg) most of unidentified X-ray sources (~94%) lie at |b|>=2deg. This result suggests that most of the unidentified sources found toward the Milky Way plane are galactic objects. Well-known and unidentified sources were classified in different tables with their corresponding radio/infrared and X-ray properties. These tables are intended as a useful tool for researchers interested in particular identifications.
- ID:
- ivo://CDS.VizieR/J/MNRAS/243/1
- Title:
- A catalogue of faint UV-excess objects
- Short Name:
- J/MNRAS/243/1
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Spectra, positions, magnitudes and colours are presented for 1400 faint (B<~21mag) stellar objects identified in a complete, ultraviolet-excess (UVX) survey. The objects were selected from COSMOS machine measurements of UK Schmidt U and J plates and observed with the Fibre Optic Coupled Aperture Plate (FOCAP) system at the Anglo-Australian Telescope (AAT). In total, 420 QSOs were identified, of which nine belong to the broad absorption line (BAL) class of QSOs. A further 57 galaxies with narrow emission lines were found. Halo subdwarfs from the vast majority (~90 per cent) of the 824 galactic stars identified in this survey; the remaining galactic stars are comprised principally of hot white dwarfs (42 objects) and horizontal branch stars (nine objects). Updated versions of the QSO number-magnitude relation and luminosity function derived from this survey are also presented in this paper.
- ID:
- ivo://CDS.VizieR/VII/187
- Title:
- A Catalogue of Galactic Supernova Remnants
- Short Name:
- VII/187
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This catalog lists all galactic supernova remnants known and is the July 1995 updated version of the catalogues of Galactic SNRs presented in detail in Green (1984, 1988) and in summary form in Green (1991,1996). The basic parameters of the 194 SNRs included in this (1995 July) version of the catalogue are, for each SNR, its Galactic coordinates, RA and Dec (B1950.0), angular size (in arcmin), type, flux density at 1 GHz, spectral index, and any other names. Notes on these parameters, on possible remnants not included and questionable SNRs listed in the catalogue are given in the documentation. It should be noted that there are serious selection effects which apply to the identification of Galactic SNRs (see Green 1991), so that great care should be taken if these data are used in statistical studies.
- ID:
- ivo://CDS.VizieR/VII/210
- Title:
- A Catalogue of Galactic Supernova Remnants
- Short Name:
- VII/210
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This catalog of known Galactic supernova remnants (SNRs) is an updated version (Version VI, August 1996) of the catalogs of Galactic SNRs presented in detail in Green (Version I 1984, Version II 1988), in summary form in Green (Version III 1991, Version IV 1996), and on the Web (Version V, July 1995). (Note that Version IV, although published in 1996, was producted in 1993.) This August 1996 version of the catalog contains 215 SNRs, which is 21 more than listed in the previous version. The basic summary data included in this catalog for each SNR are its Galactic coordinates, RA and Dec (B1950.0), angular size (in arcmin), type, flux density at 1 GHz, spectral index, and any other names. Notes on these parameters, on possible remnants not included, and questionable SNRs listed in the catalog are given in the documentation file (snrs.doc). It should be noted that there are serious selection effects which apply to the identification of Galactic SNRs (see Green 1991), so that great care should be taken if these data are used in statistical studies.
- ID:
- ivo://CDS.VizieR/VII/227
- Title:
- A Catalogue of Galactic Supernova Remnants
- Short Name:
- VII/227
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This catalogue of known Galactic supernova remnants (SNRs) is an updated version of the catalogues of Galactic SNRs presented in detail in Green (1984, 1988), in summary form in Green (1991, 1996), and on the World-Wide-Web (versions of 1995 July 1995, 1996 August, 1998 September, and 2000 August). (Note that version published in Green (1996) was produced in 1993.) This 2001 December version of the catalogue contains 231 SNRs, which is 6 more than listed in the previous version. The basic summary data included in this catalogue for each SNR are its Galactic coordinates, RA and Dec (J2000.0), angular size (in arcmin), type, flux density at 1 GHz, spectral index, and any other names. Notes on these parameters, on possible remnants not included, and questionable SNRs listed in the catalogue are given in the full version of the catalogue on the World-Wide-Web. It should be noted that there are serious selection effects which apply to the identification of Galactic SNRs (see Green 1991), so that great care should be taken if these data are used in statistical studies.
- ID:
- ivo://CDS.VizieR/VII/278
- Title:
- A Catalogue of Galactic Supernova Remnants
- Short Name:
- VII/278
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This catalogue of known Galactic supernova remnants (SNRs) is an updated version of the catalogues of Galactic SNRs presented in detail in Green (1984, 1988), in summary form in Green (1991, 1996, 2004, 2009, 2014), and on the Web (versions of 1995 July, 1996 August, 1998 September, 2000 August, 2001 December, 2004 January and 2006 April). (Note that version published in Green (1996) was produced in 1993.) This the 2017 June version of the catalogue contains 295 SNRs, and is based on results published in the literature up to the end of 2016. The basic summary data included in this catalogue for each SNR are its Galactic coordinates, RA and Dec (J2000.0), angular size, type, flux density at 1 GHz, spectral index, and any other names. Notes on these parameters, on possible remnants not included, and questionable SNRs listed in the catalogue are given in the full version of the catalogue on the Web. It should be noted that there are selection effects which apply to the identification of Galactic SNRs (e.g., Green 1991, 2004, 2005, 2009), so that care should be taken if these data are used in any statistical studies.
- ID:
- ivo://CDS.VizieR/VII/272
- Title:
- A catalogue of Galactic supernova remnants
- Short Name:
- VII/272
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This catalogue of known Galactic supernova remnants (SNRs) is an updated version of the catalogues of Galactic SNRs presented in detail in Green (1984, 1988), in summary form in Green (1991, 1996, 2004, 2009), and on the Web (versions of 1995 July, 1996 August, 1998 September, 2000 August, 2001 December, 2004 January and 2006 April). (Note that version published in Green (1996) was produced in 1993.) This the 2014 May version of the catalogue contains 294 SNRs, and is based on results published in the literature up to the end of 2013. The basic summary data included in this catalogue for each SNR are its Galactic coordinates, RA and Dec (J2000.0), angular size, type, flux density at 1GHz, spectral index, and any other names. Notes on these parameters, on possible remnants not included, and questionable SNRs listed in the catalogue are given in the full version of the catalogue on the Web. It should be noted that there are selection effects which apply to the identification of Galactic SNRs (e.g., Green 1991, 2004, 2005, 2009), so that care should be taken if these data are used in any statistical studies. Published in Green, D.A., 2014, BASI, 42, 47 (2014BASI...42...47G).