A2 197 , the SIMBAD biblio

A2 197 , the SIMBAD biblio (30 results) C.D.S. - SIMBAD4 rel 1.8 - 2026.10.15CEST09:56:35

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Bibcode/DOI Score in Title|Abstract|
Keywords 		in a table in teXt, Caption, ... Nb occurence Nb objects in ref Citations
(from ADS) 		Title First 3 Authors
1972Ap&SS..16..324B 278 20 Studies of blue objects at high galactic latitudes. Faint blue objects in the field of BD +29 2348 (the Galactic North Pole). BARBIERI C. and ROSINO L.
1977A&AS...28..123B viz 4516 49 A search for faint blue stars in high galactic latitudes. I. Nine PSS fields near the North Galactic Pole. BERGER J. and FRINGANT A.M.
1991A&AS...87..389B 1221 60 MAMA astrometry and photometry of 1221 UV-excess objects in 40 square degrees at the North Galactic Pole. BERGER J., CORDONI J.P., FRINGANT A.M., et al.
1995A&AS..111..169M viz 1766 14 Systematic search for UV-excess quasar candidates in 40 square degrees at the North Galactic Pole. MOREAU O. and REBOUL H.
2010AJ....139.2360S viz 80069 836 The Sloan Digital Sky Survey quasar catalog. V. Seventh data release. SCHNEIDER D.P., RICHARDS G.T., HALL P.B., et al.
2010ApJS..190...43H viz 15       D               1 9709 14 Deep GALEX observations of the Coma cluster: source catalog and galaxy counts. HAMMER D., HORNSCHEMEIER A.E., MOBASHER B., et al.
2010A&A...518A..10V viz 15       D               1 168913 597 A catalogue of quasars and active nuclei: 13th edition. VERON-CETTY M.-P. and VERON P.
2011A&A...527A.126P viz 15       D               2 16772 65 Cross-correlation of the 2XMMi catalogue with Data Release 7 of the Sloan Digital Sky Survey. PINEAU F.-X., MOTCH C., CARRERA F., et al.
2011ApJS..194...45S viz 15       D               1 105786 1138 A catalog of quasar properties from Sloan Digital Sky Survey data release 7. SHEN Y., RICHARDS G.T., STRAUSS M.A., et al.
2012MNRAS.420.1825J 131       D     X         4 67 146 A combined optical and X-ray study of unobscured type 1 active galactic nuclei – I. Optical spectra and spectral energy distribution modelling. JIN C., WARD M., DONE C., et al.
2012ApJ...756...27L viz 15       D               1 4347 64 Classification of X-ray sources in the XMM-Newton serendipitous source catalog. LIN D., WEBB N.A. and BARRET D.
2013ApJS..206....4K viz 15       D               1 119612 109 Mean spectral energy distributions and bolometric corrections for luminous quasars. KRAWCZYK C.M., RICHARDS G.T., MEHTA S.S., et al.
2015ApJ...804L..15S viz 16       D               1 7921 26 Dissecting the quasar main sequence: insight from host galaxy properties. SUN J. and SHEN Y.
2015MNRAS.449.1422M viz 16       D               1 233 81 Revisiting the relationship between 6 µm and 2-10 keV continuum luminosities of AGN. MATEOS S., CARRERA F.J., ALONSO-HERRERO A., et al.
2016ApJ...819..154L viz 16       D               2 2687 158 The tight relation between X-ray and ultraviolet luminosity of quasars. LUSSO E. and RISALITI G.
2016A&A...593A..55V viz 16       D               1 2283 44 Ensemble X-ray variability of active galactic nuclei. II. Excess variance and updated structure function. VAGNETTI F., MIDDEI R., ANTONUCCI M., et al.
2016MNRAS.461.2346G viz 16       D               1 68279 3 Covering factors of the dusty obscurers in radio-loud and radio-quiet quasars. GUPTA M., SIKORA M. and NALEWAJKO K.
2017MNRAS.472.3492E 95       D         F     3 57 10 Determining the torus covering factors for a sample of type 1 AGN in the local Universe. EZHIKODE S.H., GANDHI P., DONE C., et al.
2018AJ....155..189D viz 16       D               1 18896 7 The Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) Quasar Survey: quasar properties from data release two and three. DONG X.Y., WU X.-B., AI Y.L., et al.
2018A&A...613A..51P viz 16       D               1 525784 350 The Sloan Digital Sky Survey Quasar Catalog: Fourteenth data release. PARIS I., PETITJEAN P., AUBOURG E., et al.
2019A&A...622A..11G viz 16       D               1 49927 37 LoTSS/HETDEX: Optical quasars. I. Low-frequency radio properties of optically selected quasars. GURKAN G., HARDCASTLE M.J., BEST P.N., et al.
2019ApJS..243...21L viz 16       D               1 14589 47 A comprehensive and uniform sample of broad-line active galactic nuclei from the SDSS DR7. LIU H.-Y., LIU W.-J., DONG X.-B., et al.
2020ApJ...895..114H viz 16       D               1 114 ~ On the relation between the hard X-ray photon index and accretion rate for super-Eddington accreting quasars. HUANG J., LUO B., DU P., et al.
2020ApJ...896...95O viz 16       D               1 379 ~ A comparison of X-ray photon indices among the narrow- and broad-line Seyfert 1 galaxies. OJHA V., CHAND H., DEWANGAN G.C., et al.
2020ApJS..249...17R viz 16       D               1 525797 112 Spectral properties of quasars from Sloan Digital Sky Survey data release 14: the catalog. RAKSHIT S., STALIN C.S. and KOTILAINEN J.
2020ApJS..250....8L viz 16       D               1 750061 219 The Sloan Digital Sky Survey quasar catalog: Sixteenth Data Release. LYKE B.W., HIGLEY A.N., McLANE J.N., et al.
2020A&A...642A.150L viz 16       D               1 2429 92 Quasars as standard candles. III. Validation of a new sample for cosmological studies. LUSSO E., RISALITI G., NARDINI E., et al.
2020MNRAS.499.6053L viz 16       D               1 793 ~ Individual optical variability of active galactic nuclei from the MEXSAS2 sample. LAURENTI M., VAGNETTI F., MIDDEI R., et al.
2021A&A...645A..74R viz 17       D               1 83 ~ A search for X-ray absorbed sources in the 3XMM catalogue using photometric redshifts and Bayesian spectral fits. RUIZ A., GEORGANTOPOULOS I. and CORRAL A.
2022ApJ...940...50C 17       D               1 312 1 The σHβ-based Dimensionless Accretion Rate and Its Connection with the Corona for AGNs. CHEN Y.-Q., LIU Y.-S. and BIAN W.-H.

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