THE FORBIDDEN SIDEOF HIGH-Z UNIVERSE

Roberto DecarliFabian Walter, Jackie Hodge, Elisabete da Cunha, Bram Venemans, Livia Vallini, Jorge Gonzalez,Axel Weiss, Dominik Riechers,Roberto Neri, Pierre Cox, Chris Carilli, Roberto Maiolino

ISM PROBES AT LOW-Z

Wavelength

[NII] (6584 Ang)[SII] (6731 Ang)[OI] (6300 Ang)

Flux

[OIII] (5008 Ang)

[OII] (3727 Ang)

Orion, z=0

ISM PROBES AT HIGH-Z

Wavelength

[NII] (52672 Ang)[SII] (53848 Ang)[OI] (50400 Ang)

Flux

[OIII] (40064 Ang)

[OII] (29816 Ang)

Orion, z=7

ISM PROBES AT MM WAVELENGTHS

CO

Band 3

Band 2

Band 4

Band 1

PdBI

Band 3

Band 6

Band 7

ALMA[CII] [NII][OI] [OIII]

[CI]

ISM PROBES AT MM WAVELENGTHS

[CII]

J1148(2005)

J033229.4(2011)

BRI1202N(2006)

ID141(2011)

BRI1335(2010)BRI0952

(2009)

HD

F850

.1

J112

0H

imik

oIO

K-1

GRB

0904

23

HDF850.1RD, et al., in prep. Full scan of the

3mm band on the HDFN

Blind CO search

11 “high-quality” line candidates

HDF850.1

HDF850.1

Walter, RD, et al., (2012) Nature

One of the highest-z [CII] detection in a SMG: z=5.183

HDF850.1

0.3” res [CII] image reveals an on-going merger at z=5.2

[CII], blue [CII], red

Neri et al., in prep.

0.3” = 1.8 kpc

J1120+0641

Redshift record holder (among QSOs): z=7.085

Mortlock et al., 2011

[CII] @ Z=7.085

Most distant [CII] detection

SFR~160-440 Mo/yrMdust ~ 7-60e7 Mo

Mdyn < 1.4e11 Mo

Venemans et al., 2012[CII] Continuum

[CII] IN LAES AND GRB HOSTSNo continuum / [CII] detectionSFRFIR < 40-70 Mo/yr (3-s) ~ 2-3 x SFRUV (uncorr.)

Walter et al., 2012; Gonzalez et al., in prep.

Himiko (z=6.595)

IOK-1 (z=6.960)

[CII] IN LAES AND GRB HOSTSNo continuum / [CII] detectionSFRFIR < 40-70 Mo/yr (3-s) ~ 2-3 x SFRUV (uncorr.)

Walter et al., 2012; Gonzalez et al., in prep.

NOT EVEN WITH ALMA??ALMA observations of IOK-1 (PI: Ota)(see also Ouchi et al. 2013 on Himiko)

Line Continuum

GAS PROBES AT MM WAVELENGTHS

HLSJ0918(2012)

J033229.4(2012)

SMMJ02399(2011)

[NII]

MM

1824

3AP

M08

27

HD

F850

.1

ID14

1PS

S 23

22

Cloverleaf(2011)

GN

20

BR12

02-

N/S

[NII] AT HIGH-Z

Decarli et al. 2012,13

Targeted [NII] where feasible

[NII] detected in 5 sources (out of 8)

Decarli et al. 2013

Carilli et al. 2013

Bridge

QSO

SMG

LAE-S

LAE-N

BR1202-0725

[NII] COOLINGDecarli et al. 2012,13

L[NII]/LFIR ~ 0.0001

[NII] IN MM18423+59381mm continuum [NII]

[NII] – cont – CO[NII] vel gradient

[NII] IN MM18423+5938

First resolved Schmidt-Kennicutt law at high-z!

Decarli et al. 2012

CONCLUSIONS

[CII] is now “routinely” observed in FIR-bright, high-z galaxies – but not (yet) in more “normal” galaxies

[NII] is also detected for the first time in high-z galaxies

Need to increase sample sizes and line coverage

[NII] / [CII] << 10 in SMGs and QSOs, up to ~0.5 in LAEs

ID.18A BLIND LINE DETECTION …

ID.18

0.44 mm 0.61 mm 0.85 mm

1.25 mm 1.60 mm 3.6 mm

5.8 mm 24 mm 100 mm

20”

… WITH NO COUNTERPART …

CO(3-2) at z=2.07 in an otherwise “dark” galaxy

(or [CII] at z=15.87 – ask Fred)