Modified Chaplygin gas as a unified dark matter and dark energy model and cosmic constraints
A modified Chaplygin gas model (MCG), ρ MCG / ρ MCG0 =[ B s +(1− B s ) a −3(1+ B )(1+ α ) ] 1/(1+ α ) , as a unified dark matter model and dark energy model, is constrained by using current available cosmic observational data points which include type Ia supernovae, baryon acoustic oscillation and t...
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| Veröffentlicht in: | The European physical journal. C, Particles and fields Particles and fields, 2012-03, Vol.72 (3), p.1-6, Article 1931 |
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| container_title | The European physical journal. C, Particles and fields |
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| creator | Xu, Lixin Wang, Yuting Noh, Hyerim |
| description | A modified Chaplygin gas model (MCG),
ρ
MCG
/
ρ
MCG0
=[
B
s
+(1−
B
s
)
a
−3(1+
B
)(1+
α
)
]
1/(1+
α
)
, as a unified dark matter model and dark energy model, is constrained by using current available cosmic observational data points which include type Ia supernovae, baryon acoustic oscillation and the 7-year full WMAP data points. As a contrast to the consideration in the literature, we
do not
separate the MCG into two components, i.e. dark mater and dark energy component, but we take it as a whole energy component—a unified dark sector. By using a Markov Chain Monte Carlo method, a tight constraint is obtained:
,
and
. |
| doi_str_mv | 10.1140/epjc/s10052-012-1931-3 |
| format | Article |
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ρ
MCG
/
ρ
MCG0
=[
B
s
+(1−
B
s
)
a
−3(1+
B
)(1+
α
)
]
1/(1+
α
)
, as a unified dark matter model and dark energy model, is constrained by using current available cosmic observational data points which include type Ia supernovae, baryon acoustic oscillation and the 7-year full WMAP data points. As a contrast to the consideration in the literature, we
do not
separate the MCG into two components, i.e. dark mater and dark energy component, but we take it as a whole energy component—a unified dark sector. By using a Markov Chain Monte Carlo method, a tight constraint is obtained:
,
and
.</description><identifier>ISSN: 1434-6044</identifier><identifier>EISSN: 1434-6052</identifier><identifier>DOI: 10.1140/epjc/s10052-012-1931-3</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Analysis ; Astronomy ; Astrophysics and Cosmology ; Chaplygin gas ; Computer simulation ; Constraint modelling ; Dark energy ; Dark matter ; Data points ; Elementary Particles ; Exact sciences and technology ; Force and energy ; Hadrons ; Heavy Ions ; Markov analysis ; Markov chains ; Measurement Science and Instrumentation ; Monte Carlo method ; Monte Carlo simulation ; Nuclear Energy ; Nuclear Physics ; Physics ; Physics and Astronomy ; Quantum Field Theories ; Quantum Field Theory ; Regular Article - Theoretical Physics ; String Theory ; Supernovae ; The physics of elementary particles and fields</subject><ispartof>The European physical journal. C, Particles and fields, 2012-03, Vol.72 (3), p.1-6, Article 1931</ispartof><rights>Springer-Verlag / Società Italiana di Fisica 2012</rights><rights>2015 INIST-CNRS</rights><rights>COPYRIGHT 2012 Springer</rights><rights>The European Physical Journal C is a copyright of Springer, (2012). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c434t-b43785cae83c5cea0853d8f7d488cb2e3ec3463f2c888d96f0a3c5b12a78d2903</citedby><cites>FETCH-LOGICAL-c434t-b43785cae83c5cea0853d8f7d488cb2e3ec3463f2c888d96f0a3c5b12a78d2903</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1140/epjc/s10052-012-1931-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1140/epjc/s10052-012-1931-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27923,27924,41119,41487,42188,42556,51318,51575</link.rule.ids><linktorsrc>$$Uhttps://doi.org/10.1140/epjc/s10052-012-1931-3$$EView_record_in_Springer_Nature$$FView_record_in_$$GSpringer_Nature</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25822069$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Xu, Lixin</creatorcontrib><creatorcontrib>Wang, Yuting</creatorcontrib><creatorcontrib>Noh, Hyerim</creatorcontrib><title>Modified Chaplygin gas as a unified dark matter and dark energy model and cosmic constraints</title><title>The European physical journal. C, Particles and fields</title><addtitle>Eur. Phys. J. C</addtitle><description>A modified Chaplygin gas model (MCG),
ρ
MCG
/
ρ
MCG0
=[
B
s
+(1−
B
s
)
a
−3(1+
B
)(1+
α
)
]
1/(1+
α
)
, as a unified dark matter model and dark energy model, is constrained by using current available cosmic observational data points which include type Ia supernovae, baryon acoustic oscillation and the 7-year full WMAP data points. As a contrast to the consideration in the literature, we
do not
separate the MCG into two components, i.e. dark mater and dark energy component, but we take it as a whole energy component—a unified dark sector. By using a Markov Chain Monte Carlo method, a tight constraint is obtained:
,
and
.</description><subject>Analysis</subject><subject>Astronomy</subject><subject>Astrophysics and Cosmology</subject><subject>Chaplygin gas</subject><subject>Computer simulation</subject><subject>Constraint modelling</subject><subject>Dark energy</subject><subject>Dark matter</subject><subject>Data points</subject><subject>Elementary Particles</subject><subject>Exact sciences and technology</subject><subject>Force and energy</subject><subject>Hadrons</subject><subject>Heavy Ions</subject><subject>Markov analysis</subject><subject>Markov chains</subject><subject>Measurement Science and Instrumentation</subject><subject>Monte Carlo method</subject><subject>Monte Carlo simulation</subject><subject>Nuclear Energy</subject><subject>Nuclear Physics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum Field Theories</subject><subject>Quantum Field Theory</subject><subject>Regular Article - Theoretical Physics</subject><subject>String Theory</subject><subject>Supernovae</subject><subject>The physics of elementary particles and fields</subject><issn>1434-6044</issn><issn>1434-6052</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqFUU1LJDEQbRaF9WP_wtIgHjz0mK_uTh9l0FVQBHe9CaEmqbQZe9Jj0gPOv9-0PSieJAVVqXov9cLLst-UzCgV5BzXS30eKSElKwhlBW04LfiP7IAKLooqtfc-aiF-ZocxLgkhTBB5kD3d9cZZhyafP8O627bO5y3EfIx846eRgfCSr2AYMOTgd3f0GNptvuoNdu9d3ceV0yn5OARwfojH2b6FLuKvXT7KHq8u_82vi9v7Pzfzi9tCJ1VDsRC8lqUGlFyXGoHIkhtpayOk1AuGHDUXFbdMSylNU1kCCbigDGppWEP4UXYyvbsO_esG46CW_Sb4tFIx1ghGUjQJNZtQLXSonLd9kqnTMZh09x6tS_0LXvGSippWiXD2hZAwA74NLWxiVDd_H75iqwmrQx9jQKvWwa0gbBUlarRJjTapySaVbFKjTYon4ulOO0QNnQ3gtYsfbFZKxkg1qq8nXEwj32L4_OM3G_4DplmkTw</recordid><startdate>20120301</startdate><enddate>20120301</enddate><creator>Xu, Lixin</creator><creator>Wang, Yuting</creator><creator>Noh, Hyerim</creator><general>Springer-Verlag</general><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><scope>7U5</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20120301</creationdate><title>Modified Chaplygin gas as a unified dark matter and dark energy model and cosmic constraints</title><author>Xu, Lixin ; 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ρ
MCG
/
ρ
MCG0
=[
B
s
+(1−
B
s
)
a
−3(1+
B
)(1+
α
)
]
1/(1+
α
)
, as a unified dark matter model and dark energy model, is constrained by using current available cosmic observational data points which include type Ia supernovae, baryon acoustic oscillation and the 7-year full WMAP data points. As a contrast to the consideration in the literature, we
do not
separate the MCG into two components, i.e. dark mater and dark energy component, but we take it as a whole energy component—a unified dark sector. By using a Markov Chain Monte Carlo method, a tight constraint is obtained:
,
and
.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><doi>10.1140/epjc/s10052-012-1931-3</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Analysis Astronomy Astrophysics and Cosmology Chaplygin gas Computer simulation Constraint modelling Dark energy Dark matter Data points Elementary Particles Exact sciences and technology Force and energy Hadrons Heavy Ions Markov analysis Markov chains Measurement Science and Instrumentation Monte Carlo method Monte Carlo simulation Nuclear Energy Nuclear Physics Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Regular Article - Theoretical Physics String Theory Supernovae The physics of elementary particles and fields |
| title | Modified Chaplygin gas as a unified dark matter and dark energy model and cosmic constraints |
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