2016MNRAS.460.1328D

Query : 2016MNRAS.460.1328D

2016MNRAS.460.1328D - Mon. Not. R. Astron. Soc., 460, 1328-1339 (2016/August-1)

Large fluctuations in the hydrogen-ionizing background and mean free path following the epoch of reionization.

DAVIES F.B. and FURLANETTO S.R.

Abstract (from CDS):

Extremely large opaque troughs in the Lyα forest have been interpreted as a sign of an extended reionization process below z ∼ 6. Such features are impossible to reproduce with simple models of the intergalactic ionizing background that assume a uniform mean free path of ionizing photons. We build a self-consistent model of the ionizing background that includes fluctuations in the mean free path due to the varying strength of the ionizing background and large-scale density field. The dominant effect is the suppression of the ionizing background in large-scale voids due to 'self-shielding' by an enhanced number of optically thick absorbers. Our model results in a distribution of 50 Mpc h^-1 Lyα forest effective optical depths that significantly improves agreement with the observations at z ∼ 5.6. Extrapolation to z ∼ 5.4 and 5.8 appears promising, but matching the mean background evolution requires evolution in the absorber population beyond the scope of the present model. We also demonstrate the need for extremely large volumes (>400 Mpc on a side) to accurately determine the incidence of rare large-scale features in the Lyα forest.

Journal keyword(s): intergalactic medium - diffuse radiation - large-scale structure of Universe - large-scale structure of Universe

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	SDSS J014837.63+060020.0	QSO	01 48 37.639	+06 00 20.01						~	86	0

Query : 2016MNRAS.460.1328D

Basic data :

SDSS J014837.63+060020.0 -- Quasar

QSO (2014AJ,QSO), Opt (PSO,SDSS), NIR (ULAS), MIR (WISE)

01 48 37.639 +06 00 20.01 (Optical) [ 69 68 86 ] C 2012ApJS..203...21A

01 46 00.780 +05 45 25.65 [ 69 68 86 ]

147.689882 -54.094185 [ 69 68 86 ]

V(km/s) 287538 [~] / z(spectroscopic) 5.923 [~] / cz 1775671 [~] (Opt) D 2015AJ....149..188J

J (AB) 19.114 [0.0216] C 2020MNRAS.494..789R

H (AB) 19.125 [0.0706] C 2020MNRAS.494..789R

K (AB) 19.022 [0.0760] C 2020MNRAS.494..789R

u (AB) 24.9 [0.8] E 2015ApJS..219...12A

g (AB) 24.9 [0.5] E 2015ApJS..219...12A

r (AB) 24.69 [0.59] E 2012ApJS..203...21A

i (AB) 22.35 [0.18] D 2012ApJS..203...21A

z (AB) 19.45 [0.01] C 2016ApJS..227...11B

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`QSO J0148+0600`	`SDSS J014837.63+060020.0`	`WISE J014837.65+060020.5`
`PSO J027.1568+06.0055`	`ULAS J014837.63+060020.0`

References (86 between 1850 and 2026) (Total 86)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Data at NED - NASA/IPAC Extragalactic Database : SDSS J014837.63+060020.0

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SDSS J014837.63+060020.0 ULAS J014837.63+060020.0 WISE J014837.65+060020.5

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