Constraining Equation of State of Dark Matter： Including Weak Gravitational Lensing

Usually the equation of state （EoS） of dark matter is zero when it is cold, however there exists the possibility of a （effective） nonzero EoS of dark matter due to its decay and interaction with dark energy. In this work, we try to constrain the EoS of dark matter/JAdm using the currently available...

Full description

Saved in:
Bibliographic Details
Published in:Chinese physics letters 2015-05, Vol.32 (5), p.183-187
Main Author: 杨磊 杨维强 徐立昕
Format: Article
Language:English
Subjects:
Dark matter
Data points
Equations of state
Gravitational lenses
Ia型超新星
Luminosity
Monte Carlo methods
Oscillations
Supernovae
几何测量
动态测量
宇宙微波背景辐射
引力透镜
暗物质
约束方程
马尔可夫链
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c346t-cd011e30dc2d80c373fdda4c7850a992150b5078714b21b6c7d3a01880ba17f13
cites cdi_FETCH-LOGICAL-c346t-cd011e30dc2d80c373fdda4c7850a992150b5078714b21b6c7d3a01880ba17f13
container_end_page 187
container_issue 5
container_start_page 183
container_title Chinese physics letters
container_volume 32
creator 杨磊 杨维强 徐立昕
description Usually the equation of state （EoS） of dark matter is zero when it is cold, however there exists the possibility of a （effective） nonzero EoS of dark matter due to its decay and interaction with dark energy. In this work, we try to constrain the EoS of dark matter/JAdm using the currently available cosmic observations which include the geometrical and dynamical measurements. For the geometrical measurements, the luminosity distance of type Ia supernovae, the angular diameter distance and comoving sound horizon from baryon acoustic oscillations and the cosmic microwave background radiation will be employed. The data points from the redshift-space distortion and weak gravitational lensing will be taken as dynamical measurements. Using the Markov chain Monte Carlomethod, we obtain a very tight constraint on the-EoS of dark matter：wdm=0.0000532 ＋0.000692＋0.00136＋0.00183 -0.000686-0.00136-0.00177.
doi_str_mv 10.1088/0256-307X/32/5/059801
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1825441970</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><cqvip_id>664786906</cqvip_id><sourcerecordid>1825441970</sourcerecordid><originalsourceid>FETCH-LOGICAL-c346t-cd011e30dc2d80c373fdda4c7850a992150b5078714b21b6c7d3a01880ba17f13</originalsourceid><addsrcrecordid>eNqFkEFOwzAQRS0EEqVwBKSIFZuQmTiOnSUqpVQqYgEV7CzXcUpomrS2g8RVOAt34goktGLLakaa979Gj5BzhCsEISKIWRpS4C8RjSMWAcsE4AEZIE8wpCyBQzL4Y47JiXNvAIgCcUDmo6Z23qqyLutlMN62ypdNHTRF8OiVN_1yo-wquFfeG_v99RlMa121eU8_G7UKJla9l_43papgZmrXnU7JUaEqZ872c0jmt-On0V04e5hMR9ezUNMk9aHOuzcMhVzHuQBNOS3yXCWaCwYqy2JksGDABcdkEeMi1TynClAIWCjkBdIhudz1bmyzbY3zcl06bapK1aZpnUQRsyTBjMP_KOdUMJamSYeyHapt45w1hdzYcq3sh0SQvXHZ25S9TUljyeTOeJe72Odem3q57Tz8BbtaLtIMUvoDHgJ_sQ</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1773855664</pqid></control><display><type>article</type><title>Constraining Equation of State of Dark Matter： Including Weak Gravitational Lensing</title><source>Institute of Physics</source><creator>杨磊 杨维强 徐立昕</creator><creatorcontrib>杨磊 杨维强 徐立昕</creatorcontrib><description>Usually the equation of state （EoS） of dark matter is zero when it is cold, however there exists the possibility of a （effective） nonzero EoS of dark matter due to its decay and interaction with dark energy. In this work, we try to constrain the EoS of dark matter/JAdm using the currently available cosmic observations which include the geometrical and dynamical measurements. For the geometrical measurements, the luminosity distance of type Ia supernovae, the angular diameter distance and comoving sound horizon from baryon acoustic oscillations and the cosmic microwave background radiation will be employed. The data points from the redshift-space distortion and weak gravitational lensing will be taken as dynamical measurements. Using the Markov chain Monte Carlomethod, we obtain a very tight constraint on the-EoS of dark matter：wdm=0.0000532 ＋0.000692＋0.00136＋0.00183 -0.000686-0.00136-0.00177.</description><identifier>ISSN: 0256-307X</identifier><identifier>EISSN: 1741-3540</identifier><identifier>DOI: 10.1088/0256-307X/32/5/059801</identifier><language>eng</language><subject>Dark matter ; Data points ; Equations of state ; Gravitational lenses ; Ia型超新星 ; Luminosity ; Monte Carlo methods ; Oscillations ; Supernovae ; 几何测量 ; 动态测量 ; 宇宙微波背景辐射 ; 引力透镜 ; 暗物质 ; 约束方程 ; 马尔可夫链</subject><ispartof>Chinese physics letters, 2015-05, Vol.32 (5), p.183-187</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c346t-cd011e30dc2d80c373fdda4c7850a992150b5078714b21b6c7d3a01880ba17f13</citedby><cites>FETCH-LOGICAL-c346t-cd011e30dc2d80c373fdda4c7850a992150b5078714b21b6c7d3a01880ba17f13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/84212X/84212X.jpg</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>杨磊 杨维强 徐立昕</creatorcontrib><title>Constraining Equation of State of Dark Matter： Including Weak Gravitational Lensing</title><title>Chinese physics letters</title><addtitle>Chinese Physics Letters</addtitle><description>Usually the equation of state （EoS） of dark matter is zero when it is cold, however there exists the possibility of a （effective） nonzero EoS of dark matter due to its decay and interaction with dark energy. In this work, we try to constrain the EoS of dark matter/JAdm using the currently available cosmic observations which include the geometrical and dynamical measurements. For the geometrical measurements, the luminosity distance of type Ia supernovae, the angular diameter distance and comoving sound horizon from baryon acoustic oscillations and the cosmic microwave background radiation will be employed. The data points from the redshift-space distortion and weak gravitational lensing will be taken as dynamical measurements. Using the Markov chain Monte Carlomethod, we obtain a very tight constraint on the-EoS of dark matter：wdm=0.0000532 ＋0.000692＋0.00136＋0.00183 -0.000686-0.00136-0.00177.</description><subject>Dark matter</subject><subject>Data points</subject><subject>Equations of state</subject><subject>Gravitational lenses</subject><subject>Ia型超新星</subject><subject>Luminosity</subject><subject>Monte Carlo methods</subject><subject>Oscillations</subject><subject>Supernovae</subject><subject>几何测量</subject><subject>动态测量</subject><subject>宇宙微波背景辐射</subject><subject>引力透镜</subject><subject>暗物质</subject><subject>约束方程</subject><subject>马尔可夫链</subject><issn>0256-307X</issn><issn>1741-3540</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqFkEFOwzAQRS0EEqVwBKSIFZuQmTiOnSUqpVQqYgEV7CzXcUpomrS2g8RVOAt34goktGLLakaa979Gj5BzhCsEISKIWRpS4C8RjSMWAcsE4AEZIE8wpCyBQzL4Y47JiXNvAIgCcUDmo6Z23qqyLutlMN62ypdNHTRF8OiVN_1yo-wquFfeG_v99RlMa121eU8_G7UKJla9l_43papgZmrXnU7JUaEqZ872c0jmt-On0V04e5hMR9ezUNMk9aHOuzcMhVzHuQBNOS3yXCWaCwYqy2JksGDABcdkEeMi1TynClAIWCjkBdIhudz1bmyzbY3zcl06bapK1aZpnUQRsyTBjMP_KOdUMJamSYeyHapt45w1hdzYcq3sh0SQvXHZ25S9TUljyeTOeJe72Odem3q57Tz8BbtaLtIMUvoDHgJ_sQ</recordid><startdate>20150501</startdate><enddate>20150501</enddate><creator>杨磊 杨维强 徐立昕</creator><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20150501</creationdate><title>Constraining Equation of State of Dark Matter： Including Weak Gravitational Lensing</title><author>杨磊 杨维强 徐立昕</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c346t-cd011e30dc2d80c373fdda4c7850a992150b5078714b21b6c7d3a01880ba17f13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Dark matter</topic><topic>Data points</topic><topic>Equations of state</topic><topic>Gravitational lenses</topic><topic>Ia型超新星</topic><topic>Luminosity</topic><topic>Monte Carlo methods</topic><topic>Oscillations</topic><topic>Supernovae</topic><topic>几何测量</topic><topic>动态测量</topic><topic>宇宙微波背景辐射</topic><topic>引力透镜</topic><topic>暗物质</topic><topic>约束方程</topic><topic>马尔可夫链</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>杨磊 杨维强 徐立昕</creatorcontrib><collection>维普_期刊</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>维普中文期刊数据库</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Meteorological &amp; Geoastrophysical Abstracts</collection><collection>Meteorological &amp; Geoastrophysical Abstracts - Academic</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Chinese physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>杨磊 杨维强 徐立昕</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Constraining Equation of State of Dark Matter： Including Weak Gravitational Lensing</atitle><jtitle>Chinese physics letters</jtitle><addtitle>Chinese Physics Letters</addtitle><date>2015-05-01</date><risdate>2015</risdate><volume>32</volume><issue>5</issue><spage>183</spage><epage>187</epage><pages>183-187</pages><issn>0256-307X</issn><eissn>1741-3540</eissn><abstract>Usually the equation of state （EoS） of dark matter is zero when it is cold, however there exists the possibility of a （effective） nonzero EoS of dark matter due to its decay and interaction with dark energy. In this work, we try to constrain the EoS of dark matter/JAdm using the currently available cosmic observations which include the geometrical and dynamical measurements. For the geometrical measurements, the luminosity distance of type Ia supernovae, the angular diameter distance and comoving sound horizon from baryon acoustic oscillations and the cosmic microwave background radiation will be employed. The data points from the redshift-space distortion and weak gravitational lensing will be taken as dynamical measurements. Using the Markov chain Monte Carlomethod, we obtain a very tight constraint on the-EoS of dark matter：wdm=0.0000532 ＋0.000692＋0.00136＋0.00183 -0.000686-0.00136-0.00177.</abstract><doi>10.1088/0256-307X/32/5/059801</doi><tpages>5</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0256-307X
ispartof Chinese physics letters, 2015-05, Vol.32 (5), p.183-187
issn 0256-307X
1741-3540
language eng
recordid cdi_proquest_miscellaneous_1825441970
source Institute of Physics
subjects Dark matter
Data points
Equations of state
Gravitational lenses
Ia型超新星
Luminosity
Monte Carlo methods
Oscillations
Supernovae
几何测量
动态测量
宇宙微波背景辐射
引力透镜
暗物质
约束方程
马尔可夫链
title Constraining Equation of State of Dark Matter： Including Weak Gravitational Lensing
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T01%3A50%3A39IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Constraining%20Equation%20of%20State%20of%20Dark%20Matter%EF%BC%9A%20Including%20Weak%20Gravitational%20Lensing&rft.jtitle=Chinese%20physics%20letters&rft.au=%E6%9D%A8%E7%A3%8A%20%E6%9D%A8%E7%BB%B4%E5%BC%BA%20%E5%BE%90%E7%AB%8B%E6%98%95&rft.date=2015-05-01&rft.volume=32&rft.issue=5&rft.spage=183&rft.epage=187&rft.pages=183-187&rft.issn=0256-307X&rft.eissn=1741-3540&rft_id=info:doi/10.1088/0256-307X/32/5/059801&rft_dat=%3Cproquest_cross%3E1825441970%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c346t-cd011e30dc2d80c373fdda4c7850a992150b5078714b21b6c7d3a01880ba17f13%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=1773855664&rft_id=info:pmid/&rft_cqvip_id=664786906&rfr_iscdi=true