2002A&A...386..796Q

Query : 2002A&A...386..796Q

2002A&A...386..796Q - Astronomy and Astrophysics, volume 386796-800 (2002/5-2)

Fine-structure diagnostics of neutral carbon toward HE 0515-4414.

QUAST R., BAADE R. and REIMERS D.

Abstract (from CDS):

New high-resolution high signal-to-noise spectra of the z=1.15 damped Lyman α (DLA) system toward the quasi-stellar object HE 0515-4414 reveal absorption lines of the multiplets 2 and 3 in CI. The resonance lines are seen in two components with total column densities of logN=13.79±0.01 and logN=13.36±0.01, respectively. The comparision of theoretical calculations of the relative fine-structure population with the ratios of the observed column densities suggests that the CI absorbing medium is either very dense or exposed to very intense UV radiation. The upper limit on the local UV energy density is 100 times the galactic UV energy density, while the upper limit on the HI number density is 110cm^–3. The excitation temperatures of the ground state fine-structure levels of T=15.7 and T=11.1K, respectively, are consistent with the temperature-redshift relation predicted by the standard Friedmann cosmology. The cosmic microwave background radiation (CMBR) is only a minor source of the observed fine-structure excitation.

Abstract Copyright: ∼

Journal keyword(s): cosmic microwave background - intergalactic medium - quasars: absorption lines - quasars: individual: HE 0515-4414

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	HE 0515-4414	QSO	05 17 07.6238702856	-44 10 55.579731312	14.74	15.49	15.16			~	129	0

Query : 2002A&A...386..796Q

Basic data :

HE 0515-4414 -- Quasar

QSO (2010A&A,QSO,...), AGN (2013MNRAS), * (Gaia), NIR (2MASS)

05 17 07.6238702856 -44 10 55.579731312 (Optical) [ 0.0156 0.0175 90 ] A 2020yCat.1350....0G

05 15 37.7160917602 -44 14 05.325538227 [ 0.0156 0.0175 90 ]

249.6075256868163 -34.9655203976558 [ 0.0156 0.0175 90 ]

0.002 -0.038 [0.019 0.024 90] A 2020yCat.1350....0G

V(km/s) 228075 [~] / z(~) 1.713 [~] / cz 513544 [~] D 2003A&A...412..707R

U 14.74 [~] D 2013MNRAS.431..240O

B 15.49 [~] D 2013MNRAS.431..240O

V 15.16 [~] D 2013MNRAS.431..240O

G 14.883336 [0.002894] C 2020yCat.1350....0G

J 13.578 [0.027] C 2003yCat.2246....0C

H 13.031 [0.023] C 2003yCat.2246....0C

K 12.620 [0.024] C 2003yCat.2246....0C

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`QSO B0515-4414`	`QSO J0517-4410`	`[VV2003] J051707.6-441056`	`Gaia DR3 4800195161003160960`
`EC 05156-4414`	`SQUAD DR1 J051707-441055`	`[VV2006] J051707.6-441056`
`HE 0515-4414`	`TIC 220038023`	`[VV2010] J051707.6-441056`
`2MASS J05170762-4410555`	`[VV2000] J051707.6-441056`	`Gaia DR2 4800195161003160960`

References (129 between 1850 and 2026) (Total 129)
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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2MASS J05170762-4410555 Gaia DR2 4800195161003160960 Gaia DR3 4800195161003160960

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