J/ApJS/95/1 J/ApJS/95/1 Atlas of Quasar Energy Distributions M Elvis B J Wilkes J C McDowell R F Green J Bechtold S P Willner M S Oey E Polomski R Cutri Astrophys. J. Suppl. Ser. 95 1 1994 1994ApJS...95....1E Infrared sources QSOs Radio sources Ultraviolet X-ray sources atlases galaxies: photometry quasars: general We present an atlas of the spectral energy distributions (SEDs) of normal, non-blazar, quasars over the whole available range (radio to 10 keV X-rays) of the electromagnetic spectrum. The primary (UVSX) sample includes 47 quasars for which the spectral energy distributions include X-ray spectral indices and UV data. Of these, 29 are radio quiet, and 18 are radio loud. The SEDs are presented both in figures and in tabular form, with additional tabular material published on CD-ROM. Previously unpublished observational data for a second set of quasars excluded from the primary sample are also tabulated. The effects of host galaxy starlight contamination and foreground extinction on the UVSX sample are considered and the sample is used to investigate the range of SED properties. Of course, the properties we derive are influenced strongly by the selection effects induced by quasar discovery techniques. We derive the mean energy distribution (MED) for radio-loud and radio-quiet objects and present the bolometric corrections derived from it. We note, however, that the dispersion about this mean is large (~one decade for both the infrared and ultraviolet components when the MED is normalized at the near-infrared inflection). At least part of the dispersion in the ultraviolet may be due to time variability, but this is unlikely to be important in the infrared. The existence of such a large dispersion indicates that the MED reflects only some of the properties of quasars and so should be used only with caution.

Name Quasar name --- l_F0.2 Limit flag for F2 flux --- F0.2 Flux at 0.2 KeV uJy E_F0.2 Error in F2 flux (upper limit) uJy e_F0.2 Error in F2 flux (lower limit) uJy alpha10 Energy index at 1 keV --- E_alpha10 Error in energy index alpha10 (upper limit) --- e_alpha10 Error in energy index alpha10 (lower limit) --- F10 Flux at 1 keV or lower limit of the flux if interval uJy n_F10 Separation when interval of flux at 1 keV --- F10u Upper limit of the flux when interval uJy E_F10 Error in F10 flux (upper limit) uJy e_F10 Error in F10 flux (lower limit) uJy Ref Reference number=1 1) This paper; 2) Wilkes and Elvis (1987ApJ...323..243W) 3) Masnou et al. (1992A&A...253...35M) 4) Elvis et al. (1991ApJ...378..537E) 5) Comastri et al. (1992ApJ...384...62C) 6) Turner and Pounds (1989MNRAS.240..833T) 7) Williams et al. (1992ApJ...389..157W) 8) Ohashi et al. (1992ApJ...398...87O) 9) Della Ceca et al., Cat. <VII/181> 10) Turner and Pounds (1988MNRAS.232..463T) 11) Tananbaum et al. (1986ApJ...305...57T) 12) Saxton et al. (1993MNRAS.262...63S) --- alpha40 Energy index at 40 keV --- E_alpha40 Error in energy index alpha40 (upper limit) --- e_alpha40 Error in energy index alpha40 (lower limit) --- l_F40 Limit flag on F40 flux --- F40 Flux at 4 keV or lower limit of the flux if interval uJy n_F40 Separation when interval of flux at 4 keV --- F40u Upper limit of the flux F40 when interval uJy e_F40 rms uncertainty on F40 flux uJy ref2 Reference for F40 flux --- Name Quasar name --- Seq Sequence number --- Date Observation date --- Exp Exposure time s Gain Gain --- PHA PHA channels --- Counts Fit counts --- Rate Count rate ct/s alpha Spectral index --- NH Hydrogen column density 10+20cm-2 ki2 Ki2 number=1 See Wilkes & Elvis (1987ApJ...323..243W) for details --- Lambda Nominal Wavelength number= Continuum spectrophotometry has been binned into the rest frame bandpass defined by this table, chosen to avoid strong emission lines as described in the text. Avoiding: 1000-1050 L-beta 1150-1275 L-alpha 1215/NV (20000 km/s) 1375-1450 OIV 1402 1500-1600 CIV 1550 1850-1950 CIII 1909 2700-2900 Mg II 2798 3300-3550 NeV 3426 3650-3750 [OIII] 3727 3850-4450 Ne II 3869, 3968, H delta 4101, H gamma 4340 4650-5100 H Beta 4861 OIII 6250-6850 OI 6300, Halpha 6562 0.1nm Range1 Wavelength range (lower value) number= Continuum spectrophotometry has been binned into the rest frame bandpass defined by this table, chosen to avoid strong emission lines as described in the text. Avoiding: 1000-1050 L-beta 1150-1275 L-alpha 1215/NV (20000 km/s) 1375-1450 OIV 1402 1500-1600 CIV 1550 1850-1950 CIII 1909 2700-2900 Mg II 2798 3300-3550 NeV 3426 3650-3750 [OIII] 3727 3850-4450 Ne II 3869, 3968, H delta 4101, H gamma 4340 4650-5100 H Beta 4861 OIII 6250-6850 OI 6300, Halpha 6562 0.1nm --- Separation flag number= Continuum spectrophotometry has been binned into the rest frame bandpass defined by this table, chosen to avoid strong emission lines as described in the text. Avoiding: 1000-1050 L-beta 1150-1275 L-alpha 1215/NV (20000 km/s) 1375-1450 OIV 1402 1500-1600 CIV 1550 1850-1950 CIII 1909 2700-2900 Mg II 2798 3300-3550 NeV 3426 3650-3750 [OIII] 3727 3850-4450 Ne II 3869, 3968, H delta 4101, H gamma 4340 4650-5100 H Beta 4861 OIII 6250-6850 OI 6300, Halpha 6562 --- Range2 Wavelength range (upper value) number= Continuum spectrophotometry has been binned into the rest frame bandpass defined by this table, chosen to avoid strong emission lines as described in the text. Avoiding: 1000-1050 L-beta 1150-1275 L-alpha 1215/NV (20000 km/s) 1375-1450 OIV 1402 1500-1600 CIV 1550 1850-1950 CIII 1909 2700-2900 Mg II 2798 3300-3550 NeV 3426 3650-3750 [OIII] 3727 3850-4450 Ne II 3869, 3968, H delta 4101, H gamma 4340 4650-5100 H Beta 4861 OIII 6250-6850 OI 6300, Halpha 6562 0.1nm Name QSO name --- Obs Observation date "MM/YY" Exp1 First exposure --- Exp2 Second exposure --- Lambda Lambda (rest) 0.1nm log(nu) Observed frequency Hz log(nuFnu) Flux in the observed frame Jy.Hz e_log(nuFnu) rms uncertainty on log(nuFnu) Jy.Hz Name QSO name --- Date Observation date --- Exp Exposure --- Lambda Lambda (rest) nm log(nu) Observed frequency Hz log(nuFnu) Flux in the observed frame Jy.Hz e_log(nuFnu) rms uncertainty on log(nuFnu) Jy.Hz Ref Extinction law reference number=1 RL85: Rieke and Lebofsky 1985 SM79: Savage and Mathis 1979 --- log(nu) Frequency Hz R(nu) Extinction relative to extinction at V (A(nu)/A(V)) --- log(nu) Frequency Hz log(nuLnu) Energy distribution of starlight template used for host galaxy subtraction, normalized at V Hz.solLum Name Quasar name --- log(nu0) Frequency nu0 Hz log(nu1) Frequency nu1 Hz log(nu2) Frequency nu2 Hz l_log(nuFnu) Limit flag on log(nuFnu) --- log(nuFnu) Flux Jy.Hz E_log(nuFnu) Error on lognuFnu (upper limit) Jy.Hz e_log(nuFnu) Error on lognuFnu (lower limit) Jy.Hz Date Observation date "DD/MM/YY" Aper Aperture arcsec Filt Filter or detector --- Inst Intrument or telescope --- Ref References --- Name Quasar name --- Jmag J (1.24um) magnitude mag u_Jmag Uncertainty flag on J magnitude --- e_Jmag rms uncertainty on J magnitude mag Hmag H (1.63um) magnitude mag u_Hmag Uncertainty flag on H magnitude --- e_Hmag rms uncertainty on H magnitude mag Kmag K (2.19um) magnitude mag u_Kmag Uncertainty flag on K magnitude --- e_Kmag rms uncertainty on K magnitude mag l_3.4mag limit flag on 3.4um magnitude --- 3.4mag 3.4um magnitude (Delta{lambda}=0.2um) mag u_3.4mag Uncertainty flag on 3.4um magnitude --- e_3.4mag rms uncertainty on 3.4mag or error upper limit if e(3.4mag)l not blank mag e(3.4mag)l Error in 3.4mag (lower limit) mag L'mag L' (3.79um) magnitude mag e_L'mag rms uncertainty on L' magnitude mag Date Observation date --- Tel Telescope --- Beam Beam size arcsec Note When a, a 5" aperture was used for the 3.4um band measurement. When c: possible clouds, uncertainties believed adequate --- Name Quasar name --- l_Nu Limit flag on nu --- Nu Frequency GHz l_Score Limit flag on Score --- Score Core flux number=1 The division of fluxes into core and extended is arbitrary when only low-resolution observations are available. In such case the presence of a flux in the 'core' column indicates we have chosen to use it in the construction of the energy distribution. mJy e_Score rms uncertainty on Score mJy l_Sext Limit flag on Sext --- Sext Extended flux number=1 The division of fluxes into core and extended is arbitrary when only low-resolution observations are available. In such case the presence of a flux in the 'core' column indicates we have chosen to use it in the construction of the energy distribution. mJy e_Sext rms uncertainty on Sext mJy Date Observation date number=2 MM/YY for a month of observation YY for a year of observation YY-YY for several years of observation "MM/YY" u_Date Uncertainty flag on year of observation --- Tel Telescope number=3 Telescope acronyms are: FCRAO: Five College Radio Astronomy Observatory, MA GB: Green Bank 300 foot telescope NRAO: NRAO Green Bank Interferometer, WVA OVRO: Owens Valley Radio Observatory, CA PKS: Parkes 64-m DSN telescope, NSW, Australia VLA: Very Large Array, NM VLBI: Goldstone and Madrid DSN telescopes WSRT: Westerbork Synthesis Radio Telescope, Netherlands. --- l_Res Limite flag on resolution --- Res Resolution arcsec u_Res Uncertainty flag on resolution --- Ref References number=4 1: Kellerman et al. (1989AJ.....98.1195K) 2: I. Gioia, private communication 3: Gower and Hutchings (1984AJ.....89.1658G) 4: Unger et al. (1987MNRAS.228..521U) 5: Preston et al. (1985AJ.....90.1599) 6: Feigelson, Isobe and Kembhavi (1984AJ.....89.1464F) 7: Rudnick, Sitko, and Stein (1984AJ.....89..753R) 8: Miley and Hartsuijker (1978A+AS...34..129M) 9: Price and Milne (1965AuJPh..18..329P) 10: Pooley and Henbest (1974MNRAS.169..477P) 11: Perley (1982AJ.....87..859P) 12: Spencer et al. (1989MNRAS.240..657S) 13: Swarup, Sinha, and Hilldrup (1984MNRAS.208..813S) 14: Wills (1979ApJS...39..291W) 15: Owen, Porcas and Neff (1978AJ.....83.1009O) 16: Hintzen, Ulvestad and Owen (1983AJ.....88..709H) 17: Antonucci and Barvainis (1988ApJ...325L..21A) 18: Hutchings and Gower (1985AJ.....90..405H) 19: Shimmins and Bolton (1981AuJPh..34..471S) 20: Bolton and Butler (1975AuJPA..34...33B) 21: Wills (1975AuJPS..38....1W) 22: Ekers (1969AuJPS...7....1E) 23: Shimmins and Bolton (1972AuJPS..23....1S) 24: Shimmins and Bolton (1972AuJPS..26....1S) 25: Meurs and Wilson (1981A+AS...45...99M) 26: Edelson (1987ApJ...313..651E) 27: Gregory and Condon (1991) Cat. <VIII/14> 28: White and Becker Cat. <J/MNRAS/251/330> 29: Wright et al. Cat. <J/MNRAS/251/330> 30: Jagers et al. (1982A+A...105..279J) 31: Bolton et al. (1971AuJPh..24..889B) 32: Shimmins et al. (1966AuJPh..19..837S) 33: Barvainis and Antonucci (1989ApJS...70..257B) --- Name Quasar name --- lambda Line mm l_S Limit flag on flux --- S Flux at lambda mJy e_S rms uncertainty on flux mJy Date Obsercation date yr Tel Telescope --- Ref References number=1 1) Antonucci, Barvainis and Alloin (1990) (1990ApJ...353..416A) 2) Barvainis and Antonucci (1989) (1989ApJS...70..257B) 3) Chini, Kreysa and Biermann (1989) (1989A&A...219...87C) 4) Clegg, et al. (1983) (1983ApJ...273...58C) 5) Edelson, Malkan and Rieke (1987) (1987ApJ...321..233E) 6) Engargiola et al. (1988) (1988ApJ...332L..19E) 7) Ennis, Neguebauer and Werner (1982) (1982ApJ...262..460E) 8) Landau, Epstein and Rather (1980) 9) Owen, et al. (1978) 10) Owen and Puschell (1982) 11) Robson, et al. (1985) (1985MNRAS.213..355R) 12) Steppe, et al. (1988) (1988A&AS...75..317S) --- Band Band --- Lambda Reference lambda um Zeropt1 Zero point (Vega) number=1 The zero points correspond to a system in which the magnitude of Vega is exactly zero. Values are given for an object with the same spectrum as Vega and for an object with a flat energy distribution (power-law spectrum F_{nu}_~{nu}^-{alpha}^ of slope unity) Jy Zeropt2 Zero point (alpha = 1) number=1 The zero points correspond to a system in which the magnitude of Vega is exactly zero. Values are given for an object with the same spectrum as Vega and for an object with a flat energy distribution (power-law spectrum F_{nu}_~{nu}^-{alpha}^ of slope unity) Jy Name Object name --- logL H band luminosity number=1 Adopted luminosities and half light radii for host galaxies, derived as discussed in the text. solLum E_logL Error in logL (upper limit) solLum e_logL Error in logL (lower limit) solLum Rad Half-light radius number=1 Adopted luminosities and half light radii for host galaxies, derived as discussed in the text. kpc Ref References number=2 No spatial information was available for objects marked with reference (0), and they have been assigned the median luminosity of the remainder of the sample. 1: Boroson, Oke and Green (1982) (1982ApJ...263...32B) 2: Gehren et al. (1984) (1984ApJ...278...11G) 3: Smith et al. (1986) (1986ApJ...306...64S) 4: Boroson and Oke (1984) (1984ApJ...281..535B) 5: McAlary et al. (1983) (1983ApJS...52..341M) 6: Neugebauer et al. (1985) (1985ApJ...298..275N) 7: Yee and Green (1987) (1987AJ.....94..618Y) 8: Hutchings, Crampton and Campbell (1984) (1984ApJ...280...41H) 9: Griersmith and Visvanathan (1979) (1979A&A....79..329G) --- table3.texLaTeX version of table3 table6.texLaTeX version of table6 table9.texLaTeX version of table9 table10.texLaTeX version of table10 table11.texLaTeX version of table11 table12.texLaTeX version of table12 CDS 1996Feb22AAS CD-ROM series, Volume 3, 1995 Lee Brotzman [ADS] 13-Nov-94 J_ApJS_95_1.xml