J/ApJ/427/125QSOs orientation modeling (Lister+ 1994)

Orientation modeling of radio galaxy and quasar properties: evidence for a unified model. Lister M.L., Hutchings J.B., Gower A.C. <Astrophys. J. 427, 125 (1994)> =1994ApJ...427..125L (SIMBAD/NED BibCode)ADC_Keywords: Galaxies, radio ; QSOsKeywords: galaxies: active - methods: statistical - quasars: general - radio continuum: galaxiesAbstract: We discuss the statistics of projection on the sky of a simple model for radio sources. The model has a core and two hot spots at unequal distance with an overall structure which is bent at the core. We examine the distributions or the observed sizes and bend angles in 114 quasars and 78 radio galaxies with z<2, from our own data. We find that the observations are well matched by this model with (a) a size distribution matching the observed one, (b) core-hotspot length differences between 0 and 45kpc, and (c) bend angles distributed between 0deg and ∼25deg, where quasars are seen within 50deg of the source axis, and radio galaxies are seen at greater angles. We discuss the implications of these fits to unified models and source evolution.File Summary:

FileName Lrecl Records Explanations

ReadMe 80 . This file table1 39 115 Radio quasar data table2 94 8 D statistics for equal lobe (Q_{intrinsic}=1) models table3 94 8 D statistics for equal lobe (Q_{intrinsic}.diff.1) models

Byte-by-byte Description of file: table1

Bytes Format Units Label Explanations

1- 8 A8 --- Name Quasar name 9 A1 --- n_Name [d] Note (1) 11- 15 F5.3 --- z Redshift 17- 20 F4.2 --- Q Core-hot spot distance ratio (see Fig 1). 22- 26 F5.1 arcsec LAS Largest apparent size (see Fig.1). 28- 30 I3 kpc Size Size (assuming H_{0}=100km/s/Mpc and q_{0}=0.5) 32- 33 I2 deg Bend Bend angle 35- 37 A3 ---- Ref Reference (2)

Note (1): d: These sources were remeasured using improved maps.Note (2): References: GH : Gower & Hutchings (1984AJ.....89.1658G) HPG: Hutchings, Price & Gower(1988ApJ...329..122H) LHG: Lister, Hutchings & Gower (1994ApJ...427..125L) NH : Neff & Hutchings (1990AJ....100.1441N) NHG: Neff, Hutchings & Gower (1989AJ.....97.1291N)

Byte-by-byte Description of file: table2 table3

Bytes Format Units Label Explanations

1 I1 deg Bend1 Bend range (lower value) 3- 4 I2 deg Bend2 Bend range (upper value) 6- 9 F4.2 --- Db90 Goodness of fit statistic for size-bend distributions at phi=90 11- 14 F4.2 --- Dq90 Goodness of fit statistic for size-Q distributions at phi=90 16- 19 F4.2 --- D90 Total goodness of fit statistic at phi=90 21- 24 F4.2 --- Db60 Goodness of fit statistic for size-bend distributions at phi=60 26- 29 F4.2 --- Dq60 Goodness of fit statistic for size-Q distributions at phi=60 31- 34 F4.2 --- D60 Total goodness of fit statistic at phi=60 36- 39 F4.2 --- Db50 Goodness of fit statistic for size-bend distributions at phi=50 41- 44 F4.2 --- Dq50 Goodness of fit statistic for size-Q distributions at phi=50 46- 49 F4.2 --- D50 Total goodness of fit statistic at phi=50 51- 54 F4.2 --- Db40 Goodness of fit statistic for size-bend distributions at phi=40 56- 59 F4.2 --- Dq40 Goodness of fit statistic for size-Q distributions at phi=40 61- 64 F4.2 --- D40 Total goodness of fit statistic at phi=40 66- 69 F4.2 --- Db30 Goodness of fit statistic for size-bend distributions at phi=30 71- 74 F4.2 --- Dq30 Goodness of fit statistic for size-Q distributions at phi=30 76- 79 F4.2 --- D30 Total goodness of fit statistic at phi=30 81- 84 F4.2 --- Db20 Goodness of fit statistic for size-bend distributions at phi=20 86- 89 F4.2 --- Dq20 Goodness of fit statistic for size-Q distributions at phi=20 91- 94 F4.2 --- D20 Total goodness of fit statistic at phi=20

History: Prepared via OCR at CDS.(End)James Marcout, Patricia Bauer [CDS] 30-May-1997

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