2015ApJS..221....2P

Query : 2015ApJS..221....2P

2015ApJS..221....2P - Astrophys. J., Suppl. Ser., 221, 2 (2015/November-0)

The Keck + Magellan survey for Lyman limit absorption. III. Sample definition and column density measurements.

PROCHASKA J.X., O'MEARA J.M., FUMAGALLI M., BERNSTEIN R.A. and BURLES S.M.

Abstract (from CDS):

We present an absorption-line survey of optically thick gas clouds–Lyman Limit Systems (LLSs)–observed at high dispersion with spectrometers on the Keck and Magellan telescopes. We measure column densities of neutral hydrogen NH1 and associated metal-line transitions for 157 LLSs at ZLLS = 1.76 - 4.39 restricted to 1073r/cm2 ≤ NHI < 1020.3. An empirical analysis of ionic ratios indicates an increasing ionization state of the gas with decreasing NH1 and that the majority of LLSs are highly ionized, confirming previous expectations. The Si+/H0 ratio spans nearly four orders of magnitude, implying a large dispersion in the gas metallicity. Fewer than 5% of these LLSs have no positive detection of a metal transition; by z∼3 nearly all gas that is dense enough to exhibit a very high Lyman limit opacity has previously been polluted by heavy elements. We add new measurements to the small subset of LLS (≈5%-10%) that may have super-solar abundances. High Si+/Fe+ ratios suggest an α-enhanced medium, whereas the Si+/C+ ratios do not exhibit the super-solar enhancement inferred previously for the Lyα forest.

Abstract Copyright: ∼

Journal keyword(s): intergalactic medium

VizieR on-line data: <Available at CDS (J/ApJS/221/2): table1.dat table2.dat table4.dat table5.dat table6.dat>

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 B2000-330 Bla 20 03 24.1161711720 -32 51 45.136882080   18.83 18.4 17.11   ~ 279 1

Query : 2015ApJS..221....2P

Basic data :
QSO B2000-330 -- Blazar
Other object types: otypes_help 		G (), QSO (2010A&A,QSO,...), Rad (2020A&A,Gopal,...), Bla (2009A&A,[MGL2009],...), AGN (2020MNRAS,CGRaBS), MIR (WISEA,WISE), * (Gaia), gam (INTREF), X (2009A&A), cm (AT20G), NIR (2MASS), Opt (SDSS)
ICRS coord. (ep=J2000) : 		20 03 24.1161711720 -32 51 45.136882080 (Optical) [ 0.0828 0.0714 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		20 00 13.0204231240 -33 00 13.181584417 [ 0.0828 0.0714 90 ]
Gal coord. (ep=J2000) : 		008.3994203305223 -28.5762487981169 [ 0.0828 0.0714 90 ]
Proper motions mas/yr : 		0.146 0.230 [0.102 0.075 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 274681 [~] / z(emission) 3.783 [~] / cz 1134115 [~]
   (Opt) C 2017AJ....154..114O
Fluxes (11) :
B 18.83 [~] D 2008MNRAS.384..775M
V 18.4 [~] E ~
R 17.11 [~] D 2008ApJS..175...97H
G 17.604864 [0.003168] C 2020yCat.1350....0G
J 16.075 [0.082] C 2003yCat.2246....0C
H 15.329 [0.109] D 2003yCat.2246....0C
K 15.158 [0.141] D 2003yCat.2246....0C
g (AB) 18.084 [0.105] D 2018PASA...35...10W
r (AB) 17.403 [0.098] C 2018PASA...35...10W
i (AB) 17.367 [0.085] C 2018PASA...35...10W
z (AB) 17.357 [0.065] C 2018PASA...35...10W
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Identifiers (47) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

QSO B2000-330 NVSS J200324-325144 SUMSS J200324-325145 [P82] 2000-330
AT20G J200324.0-325142 PKS J2003-3251 TGSSADR J200324.0-325143 [S98b] 2000-330
AT20G J200324-325142 PKS 2000-329 TIC 336843985 [VV2000] J200324.0-325147
CGRaBS J2003-3251 PKS 2000-330 VSOP J2003-3252 [VV2003] J200324.0-325147
Gopal 2000-330 PMN J2003-3252 VSOP J2003-3251 [VV2006] J200324.0-325147
ICRF J200324.1-325145 QSO B2000-3300 WISEA J200324.11-325145.2 [VV2010] J200324.0-325147
IERS B2000-330 QSO J2003-3251 WISE J200324.11-325145.2 [VV96] J200324.0-325147
INTREF 1008 RORF 2000-330 [HB93] 2000-330 [VV98] J200324.0-325147
IVS B2000-330 SDSS J200324.12-325145.0 [LWT91] 2000-3300 Gaia DR2 6747142216109250048
1Jy 2000-330 SMSS J200324.11-325145.0 [MEM2008] 267 Gaia DR3 6747142216109250048
KODIAQ J200324-325145 SPASS J200322-325129 [MGL2009] BZQ J2003-3251 Gaia DR1 6747142211811911296
2MASS J20032410-3251452 SQUAD DR1 J200324-325144 [MML2015] 5BZQ J2003-3251

References (279 between 1850 and 2026) (Total 279)
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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Collections of Measurements Description of Measurements

Velocities : 6    PM : 3   

   

Observing logs
XMM : 2   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : QSO B2000-330

Link by name to the catalogue in VizieR :

IERS B2000-330 2MASS J20032410-3251452 NVSS J200324-325144 PKS J2003-3251 PKS 2000-329
PKS 2000-330 PMN J2003-3252 SDSS J200324.12-325145.0 SUMSS J200324-325145 VSOP J2003-3252
VSOP J2003-3251 WISEA J200324.11-325145.2 WISE J200324.11-325145.2 Gaia DR2 6747142216109250048 Gaia DR3 6747142216109250048
Gaia DR1 6747142211811911296

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