SHELLQs-ALMA (Cycle 4)

Transcription

1 ver Mar. 23, 2017 SHELLQs-ALMA (Cycle 4) Takuma Izumi IoA/UTokyo

2 Cycle 4 Data Delivery Quasar zopt M1450 Deliver (JST) DL (Mpc) LBol (Lsun) BAL J Feb E+12 N J Feb E+13 N J Feb E+12 Y J waiting! E+12 N - From Cycle 4 proposal Three of Four quasar-data targeted in Cycle 4 were delivered recently. Pipeline-reduced visibility data are now being manually CLEANed/analyzed.

3 Quick Look: J beam [CII] 158μm

4 Spatial distribution [CII] Single Gaussian z[cii] = / ~0.18 mjy/beam@dv~50 km/s Double Gaussian θ = 0.54 x 0.43 Color = continuum (1σ = 13.9 μjy/beam) Contour = [CII] mom0 (3,5,7,10σ; 1σ = Jy/beam*km/s) Both (rest) FIR continuum and [CII] line emission are clearly detected! - Peak value; continuum = 97.1μJy/beam (~7σ), [CII] moment 0 = Jy/beam*km/s (~11σ) The [CII] line profile (@center) is skewed. Better to fit with double Gaussians.

5 Channel map The [CII] emission is concentrated to the central 1 = 5.8 kpc region. Elongation to N-S direction? [CII]: Red contour = -3,3,5,7σ; 1σ = mjy/beam@dv~50 km/s Band 6 continuum: Black contour = 3,5,6σ; 1σ = 13.9μJy/beam

6 Integrated values Peak: / mjy Center: / km/s FWHM: / km/s S = / Jy*km/s Peak1: / mjy Center1: / km/s FWHM1: / km/s S1 = / Jy*km/s Peak2: / mjy Center2: / km/s FWHM2: / km/s S2 = / Jy*km/s Flux measurement over the entire emitting region. - [CII]: 1σ = = 50 km/s Double Gaussians are still required. Total [CII]: / Jy*km/s L[CII] = / E9 Lsun (Td = 47 K, β = 1.6; integrated over μm) Total B6 continuum: / mjy LFIR = / E11 Lsun Mdust = / E7 Msun Peak = / μjy/b, Total = / mjy, offset/ = (0.10, 0.00), θm = / , θm = / , PA = deg Beam-deconvolved: θm = 0.50, θm = 0.261, PA = -0.6 deg

7 Quick Look: J beam [CII] 158μm

8 Spatial distribution [CII] z[cii] = / θ = 0.54 x mjy/beam@dv~50 (47) km/s Color = continuum (1σ = 20.2 μjy/beam) Contour = [CII] mom0 (3,4σ; 1σ = Jy/beam*km/s) Peak: / mjy/beam Center: / km/s FWHM: / km/s S = / Jy/beam*km/s The negative feature@~ km/s is due to noise, as the same one is found in the before-continuum-subtracted cube. Both (rest) FIR continuum and [CII] line emission are detected! - Peak value; continuum = 101 μjy/beam (~5σ), [CII] moment 0 = Jy/beam*km/s (4.0σ)

9 Integrated values Peak: / mjy Center: / km/s FWHM: / km/s S = / Jy*km/s 0.29 mjy/beam@dv~50 (47) km/s Flux measurement over the entire emitting region. - [CII]: 1σ = ~ 50 (=47) km/s (Td = 47 K, β = 1.6; integrated over μm) Total [CII]: / Jy*km/s L[CII] = / E8 Lsun Total B6 continuum: / mjy LFIR = / E11 Lsun Mdust = / E7 Msun Peak = / μjy/b, Total = / mjy, offset/ = (0.038, ), θm = / , θm = / , PA = deg Beam-deconvolved: θm = 0.629, θm = 0.462, PA = 35.4 deg

10 Quick Look: J beam 1σ = 0.11 mjy/beam (dv ~ 50 km/s) [CII] 158μm

11 Spatial distribution [CII] z[cii] = / mjy/beam@dv~50 (47) km/s θ = 0.54 x 0.50 Color = continuum (1σ = 10.8 μjy/beam) Contour = [CII] mom0 (3,5,6σ; 1σ = Jy/beam*km/s) Peak: / mjy/beam Center: / km/s FWHM: / km/s S = / Jy/beam*km/s Both (rest) FIR continuum and [CII] line emission are detected! - Peak value; continuum = 124 μjy/beam (~11σ), [CII] moment 0 = Jy/beam*km/s (6.4σ)

12 Integrated values Peak: / mjy Center: / km/s FWHM: / km/s S = / Jy*km/s 0.10 mjy/beam@dv~50 (47) km/s Flux measurement over the entire emitting region. - [CII]: 1σ = 0.10 ~ 50 (=47) km/s (Td = 47 K, β = 1.6; integrated over μm) Total [CII]: / Jy*km/s L[CII] = / E8 Lsun Total B6 continuum: / mjy LFIR = / E11 Lsun Mdust = / E7 Msun Peak = / μjy/b, Total = / mjy, offset/ = (-0.171, ), θm = / , θm = / , PA = / deg Beam-deconvolved: θm = 0.551, θm = 0.402, PA = 78.5 deg

13 Our Quasars log (L[CII] [Lsun]) (b) z > 6 quasars : y = *x From Cycle 4 proposal J M1450 [absolute mag] J (BAL) J Venemans+16 Object log [CII] log FIR log [CII]/FIR M1450 J J J J

14 Other Emitters within FoV Object Line Continuum J0859 N N J1152 N N J2216 N N J Searched for S/N cube (i.e., before primary beam corrections) Other Lines@center Object J0859 J1152 J2216 Line N N N J1202 -