2012MNRAS.421.3217K

Query : 2012MNRAS.421.3217K

2012MNRAS.421.3217K - Mon. Not. R. Astron. Soc., 421, 3217-3221 (2012/April-3)

On the formation of very metal poor stars: the case of SDSS J1029151+172927.

KLESSEN R.S., GLOVER S.C.O. and CLARK P.C.

Abstract (from CDS):

The formation of stars is a key process in the early universe with far-reaching consequences for further cosmic evolution. While stars forming from truly primordial gas are thought to be considerably more massive than our Sun, stars in the universe today have typical masses below one solar mass. The physical origin of this transition and the conditions under which it occurs are highly debated. There are two competing models: one based on metal-line cooling as the primary agent and one based on dust cooling. The recent discovery of the extremely metal poor star SDSS J1029151+172927 provides a unique opportunity to distinguish between these two models. Based on simple thermodynamic considerations we argue that SDSS J1029151+172927 was more likely formed as a result of dust continuum cooling rather than cooling by metal lines. We conclude that the masses of extremely metal poor stars are determined by dust-induced fragmentation.

Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS

Journal keyword(s): stars: abundances - stars: formation - stars: luminosity function, mass function - stars: Population II - stars: Population III - early 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 UCAC3 215-112497 Pe* 10 29 15.1489854864 +17 29 27.924626724   17.424 16.708   15.98 sdA 120 0

Query : 2012MNRAS.421.3217K

Basic data :
UCAC3 215-112497 -- Chemically Peculiar Star
Other object types: otypes_help 		* (2009ApJS,UCAC3,...), MIR (WISEA,WISE), Pe* (2011Natur), NIR (2MASS), Opt (SDSS)
ICRS coord. (ep=J2000) : 		10 29 15.1489854864 +17 29 27.924626724 (Optical) [ 0.0534 0.0430 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		10 26 33.1408722389 +17 44 50.411892552 [ 0.0534 0.0430 90 ]
Gal coord. (ep=J2000) : 		221.7848174585436 +55.8634730787043 [ 0.0534 0.0430 90 ]
Proper motions mas/yr : 		-10.720 -3.921 [0.063 0.054 90] A 2020yCat.1350....0G
Parallaxes (mas): 		0.6482 [0.0598] A 2020yCat.1350....0G
Spectral type: 		sdA D 2019MNRAS.486.2169K
Fluxes (12) :
B 17.424 [0.13] D 2012yCat.1322....0Z
V 16.708 [0.01] D 2012yCat.1322....0Z
G 16.536459 [0.002856] C 2020yCat.1350....0G
I 15.98 [0.35] E 2008AJ....136..735L
J 15.513 [0.052] C 2003yCat.2246....0C
H 15.126 [0.077] C 2003yCat.2246....0C
K 15.146 [0.116] C 2003yCat.2246....0C
u (AB) 17.736 [0.011] C 2009ApJS..182..543A
g 17.008 [0.01] D 2012yCat.1322....0Z
r 16.428 [0.01] D 2012yCat.1322....0Z
i (AB) 16.388 [0.004] B 2009ApJS..182..543A
z (AB) 16.330 [0.008] B 2009ApJS..182..543A
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Identifiers (11) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

UCAC3 215-112497 SDSS J102915.14+172927.9 USNO-B1.0 1074-00222082 Gaia DR2 3890626773968983296
2MASS J10291514+1729278 TIC 63220065 WISEA J102915.22+172928.1 Gaia DR3 3890626773968983296
SDSS J102915.15+172927.9 UCAC4 538-051259 WISE J102915.21+172928.1

References (120 between 1850 and 2026) (Total 120)
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

Distance : 1    Fe/H : 1    Plx : 2    PM : 2    SpT : 1   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : UCAC3 215-112497

Link by name to the catalogue in VizieR :

UCAC3 215-112497 2MASS J10291514+1729278 SDSS J102915.15+172927.9 SDSS J102915.14+172927.9 UCAC4 538-051259
USNO-B1.0 1074-00222082 WISEA J102915.22+172928.1 WISE J102915.21+172928.1 Gaia DR2 3890626773968983296 Gaia DR3 3890626773968983296

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