2001A&A...368L..21D

Query : 2001A&A...368L..21D

2001A&A...368L..21D - Astronomy and Astrophysics, volume 368L21-24 (2001/3-4)

A new deuterium abundance measurement from a damped Lyα system at (z)_abs=3.025.

D'ODORICO S., DESSAUGES-ZAVADSKY M. and MOLARO P.

Abstract (from CDS):

We present the first D/H measurement in a damped Lyα (hereafter DLA) system at z_abs=3.025 towards QSO 0347-3819 obtained from the UVES-VLT spectra. The DLA absorber has a metallicity of [Zn/H]≃-1.25 and a relatively simple velocity structure, with two dominating components detected in several metal lines. The hydrogen Lyman series can be followed down to Ly12 thanks to the high UV-Blue efficiency of UVES. The best fit of the Lyman series lines, and in particular of Lyε, Ly8, Ly10 and Ly12, relatively free of local contamination, is obtained when the DI absorption is included in the two main components. The measured deuterium column density yields (D)/(H)=(2.24±0.67)x10^–5 close to other low D/H values from Lyman limit systems. The corresponding values for the baryon to photon ratio and the baryon density derived from D/H are η≃6x10^–10 and Ω_bh²=0.023 respectively.

Abstract Copyright: ∼

Journal keyword(s): cosmology: observations - quasars: individual: QSO 0347-3819 - nuclear reactions, nucleosynthesis, abundances

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	QSO B0347-383	QSO	03 49 43.6603590912	-38 10 30.825444900			17.3			~	196	0

Query : 2001A&A...368L..21D

Basic data :

QSO B0347-383 -- Quasar

QSO (2010A&A,QSO,...), * (Gaia), NIR (2MASS)

03 49 43.6603590912 -38 10 30.825444900 (Optical) [ 0.0569 0.0679 90 ] A 2020yCat.1350....0G

03 47 54.2008554217 -38 19 33.885575084 [ 0.0569 0.0679 90 ]

241.0427562248777 -51.2814761623385 [ 0.0569 0.0679 90 ]

-0.020 0.017 [0.071 0.095 90] A 2020yCat.1350....0G

V(km/s) 267942 [~] / z(emission) 3.222 [~] / cz 965931 [~] (Opt) C 2017AJ....154..114O

0.0523 [0.0755] A 2020yCat.1350....0G

V 17.3 [~] E ~

G 17.694740 [0.003195] C 2020yCat.1350....0G

J 16.357 [0.101] D 2003yCat.2246....0C

H 15.991 [0.152] D 2003yCat.2246....0C

K 15.199 [0.159] D 2003yCat.2246....0C

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`QSO B0347-383`	`SQUAD DR1 J034943-381030`	`[SBS92] 0347-383`	`[VV96] J034943.7-381031`
`KODIAQ J034943-381031`	`TIC 140074711`	`[SCW81] 0347-383`	`[VV98] J034943.7-381031`
`2MASS J03494367-3810310`	`[HB93] 0347-383`	`[VV2000] J034943.7-381031`	`Gaia DR3 4855891369183954432`
`QSO B0347-38`	`[LSB98] 0347-3819`	`[VV2003] J034943.7-381031`	`Gaia DR2 4855891369183954432`
`QSO J0349-3810`	`[LWT91] 0347-3819`	`[VV2006] J034943.7-381031`
`QSO B0347-3819`	`[PW98] 0347-38`	`[VV2010] J034943.7-381031`

References (196 between 1850 and 2026) (Total 196)
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 : QSO B0347-383

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2MASS J03494367-3810310 Gaia DR3 4855891369183954432 Gaia DR2 4855891369183954432

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