2016MNRAS.458.2648S

Query : 2016MNRAS.458.2648S

2016MNRAS.458.2648S - Mon. Not. R. Astron. Soc., 458, 2648-2656 (2016/May-3)

Abundance analysis of SDSS J134338.67+484426.6: an extremely metal-poor star from the MARVELS pre-survey.

SUSMITHA RANI A., SIVARANI T., BEERS T.C., FLEMING S., MAHADEVAN S. and GE J.

Abstract (from CDS):

We present an elemental-abundance analysis of an extremely metal-poor (EMP; [Fe/H] V=12.14, is the lowest metallicity star found in the pre-survey, and is one of only ∼20 known EMP stars that are this bright or brighter. Our high-resolution spectroscopic analysis shows that this star is a subgiant with [Fe/H]=-3.42, having 'normal' carbon and no enhancement of neutron-capture abundances. Strontium is underabundant, [Sr/Fe]=-0.47, but the derived lower limit on [Sr/Ba] indicates that Sr is likely enhanced relative to Ba. This star belongs to the sparsely populated class of α-poor EMP stars that exhibit low ratios of [Mg/Fe], [Si/Fe], and [Ca/Fe] compared to typical halo stars at similar metallicity. The observed variations in radial velocity from several epochs of (low- and high-resolution) spectroscopic follow-up indicate that SDSS J134338.67+484426.6 is a possible long-period binary. We also discuss the abundance trends in EMP stars for r-process elements, and compare with other magnesium-poor stars.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: abundances - stars: Population II - Galaxy: halo

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

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 J134338.67+484426.6 Pe* 13 43 38.6679996887 +48 44 26.706404692   12.685 12.147 12.114   CEMP 10 0

Query : 2016MNRAS.458.2648S

Basic data :
SDSS J134338.67+484426.6 -- Chemically Peculiar Star
Other object types: otypes_help 		* (2016MNRAS,UCAC4,...), Opt (LAMOST,SDSS), Pe* (2016A&A), NIR (2MASS), MIR (WISEA)
ICRS coord. (ep=J2000) : 		13 43 38.6679996887 +48 44 26.706404692 (Optical) [ 0.0074 0.0091 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		13 41 38.0252900118 +48 59 32.046882957 [ 0.0074 0.0091 90 ]
Gal coord. (ep=J2000) : 		101.3292736719211 +66.1396725956978 [ 0.0074 0.0091 90 ]
Proper motions mas/yr : 		0.434 -43.774 [0.009 0.011 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -114 [3] / z(spectroscopic) -0.00038 [0.00001] / cz -113.9 [3.0]
   (Opt) E 2012ApJS..203...21A
Parallaxes (mas): 		1.1146 [0.0106] A 2020yCat.1350....0G
Spectral type: 		CEMP C 2022ApJ...926...26S
Fluxes (12) :
B 12.685 [0.04] D 2012yCat.1322....0Z
V 12.147 [0.04] D 2012yCat.1322....0Z
R 12.114 [0.03] D 2012yCat.1322....0Z
G 12.033536 [0.002772] C 2022yCat.1355....0G
J 11.031 [0.022] C 2003yCat.2246....0C
H 10.675 [0.028] C 2003yCat.2246....0C
K 10.609 [0.022] C 2003yCat.2246....0C
u (AB) 15.282 [0.009] C 2012ApJS..203...21A
g 12.369 [0.06] D 2012yCat.1322....0Z
r 11.988 [0.04] D 2012yCat.1322....0Z
i 11.898 [0.03] D 2012yCat.1322....0Z
z (AB) 12.384 [0.003] C 2012ApJS..203...21A
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 7 Display criteria :

Identifiers (7) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

UCAC4 694-053205 2MASS J13433867+4844266 WISEA J134338.66+484426.2 Gaia DR3 1558284370590734336
LAMOST J134338.67+484426.6 SDSS J134338.67+484426.6 Gaia DR2 1558284370590734336

References (10 between 1850 and 2026) (Total 10)
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 : 2    Distance : 2    Fe/H : 5    Plx : 2    PM : 2    SpT : 2   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : SDSS J134338.67+484426.6

Link by name to the catalogue in VizieR :

UCAC4 694-053205 2MASS J13433867+4844266 SDSS J134338.67+484426.6 WISEA J134338.66+484426.2 Gaia DR2 1558284370590734336
Gaia DR3 1558284370590734336

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