Astrometric Microlensing as a Method of Discovering and Characterizing Extra-Solar Planets
We introduce a new method of searching for and characterizing extra-solar planets. We show that by monitoring the center-of-light motion of microlensing alerts using the next generation of high precision astrometric instruments the probability of detecting a planet orbiting the lens is high. We show...
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| creator | Safizadeh, Neda Dalal, Neal Griest, Kim |
| description | We introduce a new method of searching for and characterizing extra-solar
planets. We show that by monitoring the center-of-light motion of microlensing
alerts using the next generation of high precision astrometric instruments the
probability of detecting a planet orbiting the lens is high. We show that
adding astrometric information to the photometric microlensing lightcurve
greatly helps in determining the planetary mass and semi-major axis. We
introduce astrometric maps as a new way for calculating astrometric motion and
planet detection probabilities. Finite source effects are important for low
mass planets, but even Earth mass planets can give detectable signals. |
| doi_str_mv | 10.48550/arxiv.astro-ph/9811233 |
| format | Article |
| fullrecord | <record><control><sourceid>arxiv_GOX</sourceid><recordid>TN_cdi_arxiv_primary_astro_ph_9811233</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>astro_ph_9811233</sourcerecordid><originalsourceid>FETCH-arxiv_primary_astro_ph_98112333</originalsourceid><addsrcrecordid>eNqNjr0KwjAURrM4iPoMZnHsn7VQR6kVl4Kgk0u4pKkJpEm5CaX69NrSB3D64HxnOIRskzg85FkWR4CD6kNwHm3QyeiYJ8k-TZfkeRpRKzwqTivF0WphnDIvCo4CrYSXtqa2oWfluO0FTpepaSEBgfsf-IyoHDxCcLcakN40GOHdmiwa0E5s5l2R3aV8FNdgamEdqhbwzaYm1kk2N6X_el-ZBUlJ</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Astrometric Microlensing as a Method of Discovering and Characterizing Extra-Solar Planets</title><source>arXiv.org</source><creator>Safizadeh, Neda ; Dalal, Neal ; Griest, Kim</creator><creatorcontrib>Safizadeh, Neda ; Dalal, Neal ; Griest, Kim</creatorcontrib><description>We introduce a new method of searching for and characterizing extra-solar
planets. We show that by monitoring the center-of-light motion of microlensing
alerts using the next generation of high precision astrometric instruments the
probability of detecting a planet orbiting the lens is high. We show that
adding astrometric information to the photometric microlensing lightcurve
greatly helps in determining the planetary mass and semi-major axis. We
introduce astrometric maps as a new way for calculating astrometric motion and
planet detection probabilities. Finite source effects are important for low
mass planets, but even Earth mass planets can give detectable signals.</description><identifier>DOI: 10.48550/arxiv.astro-ph/9811233</identifier><language>eng</language><subject>Physics - Astrophysics of Galaxies ; Physics - Cosmology and Nongalactic Astrophysics ; Physics - Earth and Planetary Astrophysics ; Physics - High Energy Astrophysical Phenomena ; Physics - Instrumentation and Methods for Astrophysics ; Physics - Solar and Stellar Astrophysics</subject><creationdate>1998-11</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,881</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/astro-ph/9811233$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.1086/307628$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.48550/arXiv.astro-ph/9811233$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Safizadeh, Neda</creatorcontrib><creatorcontrib>Dalal, Neal</creatorcontrib><creatorcontrib>Griest, Kim</creatorcontrib><title>Astrometric Microlensing as a Method of Discovering and Characterizing Extra-Solar Planets</title><description>We introduce a new method of searching for and characterizing extra-solar
planets. We show that by monitoring the center-of-light motion of microlensing
alerts using the next generation of high precision astrometric instruments the
probability of detecting a planet orbiting the lens is high. We show that
adding astrometric information to the photometric microlensing lightcurve
greatly helps in determining the planetary mass and semi-major axis. We
introduce astrometric maps as a new way for calculating astrometric motion and
planet detection probabilities. Finite source effects are important for low
mass planets, but even Earth mass planets can give detectable signals.</description><subject>Physics - Astrophysics of Galaxies</subject><subject>Physics - Cosmology and Nongalactic Astrophysics</subject><subject>Physics - Earth and Planetary Astrophysics</subject><subject>Physics - High Energy Astrophysical Phenomena</subject><subject>Physics - Instrumentation and Methods for Astrophysics</subject><subject>Physics - Solar and Stellar Astrophysics</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNqNjr0KwjAURrM4iPoMZnHsn7VQR6kVl4Kgk0u4pKkJpEm5CaX69NrSB3D64HxnOIRskzg85FkWR4CD6kNwHm3QyeiYJ8k-TZfkeRpRKzwqTivF0WphnDIvCo4CrYSXtqa2oWfluO0FTpepaSEBgfsf-IyoHDxCcLcakN40GOHdmiwa0E5s5l2R3aV8FNdgamEdqhbwzaYm1kk2N6X_el-ZBUlJ</recordid><startdate>19981114</startdate><enddate>19981114</enddate><creator>Safizadeh, Neda</creator><creator>Dalal, Neal</creator><creator>Griest, Kim</creator><scope>GOX</scope></search><sort><creationdate>19981114</creationdate><title>Astrometric Microlensing as a Method of Discovering and Characterizing Extra-Solar Planets</title><author>Safizadeh, Neda ; Dalal, Neal ; Griest, Kim</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-arxiv_primary_astro_ph_98112333</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>Physics - Astrophysics of Galaxies</topic><topic>Physics - Cosmology and Nongalactic Astrophysics</topic><topic>Physics - Earth and Planetary Astrophysics</topic><topic>Physics - High Energy Astrophysical Phenomena</topic><topic>Physics - Instrumentation and Methods for Astrophysics</topic><topic>Physics - Solar and Stellar Astrophysics</topic><toplevel>online_resources</toplevel><creatorcontrib>Safizadeh, Neda</creatorcontrib><creatorcontrib>Dalal, Neal</creatorcontrib><creatorcontrib>Griest, Kim</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Safizadeh, Neda</au><au>Dalal, Neal</au><au>Griest, Kim</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Astrometric Microlensing as a Method of Discovering and Characterizing Extra-Solar Planets</atitle><date>1998-11-14</date><risdate>1998</risdate><abstract>We introduce a new method of searching for and characterizing extra-solar
planets. We show that by monitoring the center-of-light motion of microlensing
alerts using the next generation of high precision astrometric instruments the
probability of detecting a planet orbiting the lens is high. We show that
adding astrometric information to the photometric microlensing lightcurve
greatly helps in determining the planetary mass and semi-major axis. We
introduce astrometric maps as a new way for calculating astrometric motion and
planet detection probabilities. Finite source effects are important for low
mass planets, but even Earth mass planets can give detectable signals.</abstract><doi>10.48550/arxiv.astro-ph/9811233</doi><oa>free_for_read</oa></addata></record> |
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| identifier | DOI: 10.48550/arxiv.astro-ph/9811233 |
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| subjects | Physics - Astrophysics of Galaxies Physics - Cosmology and Nongalactic Astrophysics Physics - Earth and Planetary Astrophysics Physics - High Energy Astrophysical Phenomena Physics - Instrumentation and Methods for Astrophysics Physics - Solar and Stellar Astrophysics |
| title | Astrometric Microlensing as a Method of Discovering and Characterizing Extra-Solar Planets |
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