The Isaac Newton Telescope Wide Field Camera survey of the Monoceros Ring: accretion origin or Galactic anomaly?
Identifieur interne : 000F73 ( Istex/Curation ); précédent : 000F72; suivant : 000F74The Isaac Newton Telescope Wide Field Camera survey of the Monoceros Ring: accretion origin or Galactic anomaly?
Auteurs : Blair C. Conn [Australie] ; Geraint F. Lewis [Australie] ; Mike J. Irwin [Australie] ; Rodrigo A. Ibata [France, Australie] ; Annette M. N. Ferguson [Royaume-Uni, Australie] ; Nial Tanvir [Australie] ; Jonathan M. Irwin [Australie]Source :
- Monthly Notices of the Royal Astronomical Society [ 0035-8711 ] ; 2005-09.
English descriptors
- KwdEn :
- Accreting dwarf galaxy, Accretion, Accretion event, Arrubia, Base position, Bulk halo, Camera survey, Canary islands, Canis, Cent completeness, Cmds, Completeness curve, Corresponding model plot, Dark matter, Detection, Disc, Distance estimates, Dwarf, Dwarf galaxy, Eld, Field camera, Field camera survey, Galactic, Galactic anticentre, Galactic centre, Galactic component, Galactic components, Galactic disc, Galactic equator, Galactic features, Galactic halo, Galactic longitude, Galactic plane, Galactic population, Galactic view, Galactic warp, Galactocentric, Galactocentric distance, Galactocentric distance estimates, Galactocentric distances, Galaxy, Globular clusters, Gures, Halo, Halo component, Heliocentric, Heliocentric distance, Heliocentric distances, Hess, Hess plot, Hess plots, Ibata, Inner ring, Irwin, Irwin lewis, Isaac newton telescope, Kinematic survey, Local density, Longitude, Lower panels, Lower plot, Lower side, Magnitude completeness, Magnitude range, Main sequence, Main sequences, Majewski, Milky, Mnras, Model cmds, Monoceros, Monoceros ring, Newberg, Numerical simulations, Obvious feature, Open clusters, Opposite side, Outer ring, Overdensity, Overlap regions, Overlay, Panels show, Potential detections, Prograde, Prograde orbit, Real data, Redward, Redward trend, Robin, Robin creze, Sagittarius dwarf galaxy, Same manner, Sdss, Solar circle, Stellar, Stellar population, Style overlay, Symmetric pairs, Synthetic cmds, Synthetic galaxy model, Synthetic model, Systematic errors, Tentative detection, Tentative detections, Thick disc, Thin disc, Tidal, Tidal arms, Tidal debris, Tidal stream, Tidal streams, Total area, Triand, Triand structure, Various components, Velocity dispersion, Warp, Yanny.
- Teeft :
- Accreting dwarf galaxy, Accretion, Accretion event, Arrubia, Base position, Bulk halo, Camera survey, Canary islands, Canis, Cent completeness, Cmds, Completeness curve, Corresponding model plot, Dark matter, Detection, Disc, Distance estimates, Dwarf, Dwarf galaxy, Eld, Field camera, Field camera survey, Galactic, Galactic anticentre, Galactic centre, Galactic component, Galactic components, Galactic disc, Galactic equator, Galactic features, Galactic halo, Galactic longitude, Galactic plane, Galactic population, Galactic view, Galactic warp, Galactocentric, Galactocentric distance, Galactocentric distance estimates, Galactocentric distances, Galaxy, Globular clusters, Gures, Halo, Halo component, Heliocentric, Heliocentric distance, Heliocentric distances, Hess, Hess plot, Hess plots, Ibata, Inner ring, Irwin, Irwin lewis, Isaac newton telescope, Kinematic survey, Local density, Longitude, Lower panels, Lower plot, Lower side, Magnitude completeness, Magnitude range, Main sequence, Main sequences, Majewski, Milky, Mnras, Model cmds, Monoceros, Monoceros ring, Newberg, Numerical simulations, Obvious feature, Open clusters, Opposite side, Outer ring, Overdensity, Overlap regions, Overlay, Panels show, Potential detections, Prograde, Prograde orbit, Real data, Redward, Redward trend, Robin, Robin creze, Sagittarius dwarf galaxy, Same manner, Sdss, Solar circle, Stellar, Stellar population, Style overlay, Symmetric pairs, Synthetic cmds, Synthetic galaxy model, Synthetic model, Systematic errors, Tentative detection, Tentative detections, Thick disc, Thin disc, Tidal, Tidal arms, Tidal debris, Tidal stream, Tidal streams, Total area, Triand, Triand structure, Various components, Velocity dispersion, Warp, Yanny.
Abstract
We present the results of a wide‐field camera survey of the stars in the Monoceros Ring, thought to be an additional structure in the Milky Way of unknown origin. Lying roughly in the plane of the Milky Way, this may represent a unique equatorial accretion event which is contributing to the thick disc of the Galaxy. Alternatively, the Monoceros Ring may be a natural part of the disc formation process. With 10 pointings in symmetric pairs above and below the plane of the Galaxy, this survey spans 90° about the equator of the Milky Way. Signatures of the stream of stars were detected in three fields, (l, b) = (118°, +16°) and (150°, +15°) plus a more tentative detection at (150°, −15°). Galactocentric distance estimates to these structures gave ∼17, ∼17, and ∼13 kpc, respectively. The Monoceros Ring seems to be present on both sides of the Galactic plane, in a form different from that of the Galactic warp, suggestive of a tidal origin with streams multiply wrapping the Galaxy. A new model of the stream has shown a strong coincidence with our results and has also provided the opportunity to make several more detections in fields in which the stream is less significant. The confirmed detection at (l, b) = (123°, −19°) at ∼14, kpc from the Galactic Centre allows a re‐examination revealing a tentative new detection with a Galactocentric distance of ∼21 kpc. These detections also lie very close to the newly discovered structure in Triangulum–Andromedae hinting at a link between the two. The remaining six fields are apparently non‐detections although in light of these new models, closer inspection reveals tentative structure. With the overdensity of M giant stars in Canis Major being claimed both as a progenitor to the Monoceros Ring and alternatively a manifestation of the Milky Way warp, much is still unknown concerning this structure and its connection to the Monoceros Ring. Further constraints are needed for the numerical simulations to adequately resolve the increasingly complex view of this structure.
Url:
DOI: 10.1111/j.1365-2966.2005.09311.x
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: Pour aller vers cette notice dans l'étape Curation :000F73
Links to Exploration step
ISTEX:536CB4E7BD4119712CEEEE2235992BB2CBB25374Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">The Isaac Newton Telescope Wide Field Camera survey of the Monoceros Ring: accretion origin or Galactic anomaly?</title>
<author><name sortKey="Conn, Blair C" sort="Conn, Blair C" uniqKey="Conn B" first="Blair C." last="Conn">Blair C. Conn</name>
<affiliation wicri:level="1"><mods:affiliation>Institute of Astronomy, School of Physics, A29, University of Sydney, NSW 2006, Australia</mods:affiliation>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Institute of Astronomy, School of Physics, A29, University of Sydney, NSW 2006</wicri:regionArea>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Lewis, Geraint F" sort="Lewis, Geraint F" uniqKey="Lewis G" first="Geraint F." last="Lewis">Geraint F. Lewis</name>
<affiliation wicri:level="1"><mods:affiliation>Institute of Astronomy, School of Physics, A29, University of Sydney, NSW 2006, Australia</mods:affiliation>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Institute of Astronomy, School of Physics, A29, University of Sydney, NSW 2006</wicri:regionArea>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Irwin, Mike J" sort="Irwin, Mike J" uniqKey="Irwin M" first="Mike J." last="Irwin">Mike J. Irwin</name>
<affiliation><mods:affiliation>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA</mods:affiliation>
<wicri:noCountry code="subField">0HA</wicri:noCountry>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Ibata, Rodrigo A" sort="Ibata, Rodrigo A" uniqKey="Ibata R" first="Rodrigo A." last="Ibata">Rodrigo A. Ibata</name>
<affiliation wicri:level="1"><mods:affiliation>Observatoire de Strasbourg, 11, rue de l'Université, F‐67000, Strasbourg, France</mods:affiliation>
<country xml:lang="fr">France</country>
<wicri:regionArea>Observatoire de Strasbourg, 11, rue de l'Université, F‐67000, Strasbourg</wicri:regionArea>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Ferguson, Annette M N" sort="Ferguson, Annette M N" uniqKey="Ferguson A" first="Annette M. N." last="Ferguson">Annette M. N. Ferguson</name>
<affiliation wicri:level="4"><mods:affiliation>Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</mods:affiliation>
<orgName type="university">Université d'Édimbourg</orgName>
<country>Royaume-Uni</country>
<placeName><settlement type="city">Édimbourg</settlement>
<region type="country">Écosse</region>
</placeName>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Tanvir, Nial" sort="Tanvir, Nial" uniqKey="Tanvir N" first="Nial" last="Tanvir">Nial Tanvir</name>
<affiliation><mods:affiliation>Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield AL10 9AB</mods:affiliation>
<wicri:noCountry code="subField">9AB</wicri:noCountry>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Irwin, Jonathan M" sort="Irwin, Jonathan M" uniqKey="Irwin J" first="Jonathan M." last="Irwin">Jonathan M. Irwin</name>
<affiliation><mods:affiliation>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA</mods:affiliation>
<wicri:noCountry code="subField">0HA</wicri:noCountry>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:536CB4E7BD4119712CEEEE2235992BB2CBB25374</idno>
<date when="2005" year="2005">2005</date>
<idno type="doi">10.1111/j.1365-2966.2005.09311.x</idno>
<idno type="url">https://api.istex.fr/document/536CB4E7BD4119712CEEEE2235992BB2CBB25374/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">000F73</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000F73</idno>
<idno type="wicri:Area/Istex/Curation">000F73</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a" type="main">The Isaac Newton Telescope Wide Field Camera survey of the Monoceros Ring: accretion origin or Galactic anomaly?</title>
<author><name sortKey="Conn, Blair C" sort="Conn, Blair C" uniqKey="Conn B" first="Blair C." last="Conn">Blair C. Conn</name>
<affiliation wicri:level="1"><mods:affiliation>Institute of Astronomy, School of Physics, A29, University of Sydney, NSW 2006, Australia</mods:affiliation>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Institute of Astronomy, School of Physics, A29, University of Sydney, NSW 2006</wicri:regionArea>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Lewis, Geraint F" sort="Lewis, Geraint F" uniqKey="Lewis G" first="Geraint F." last="Lewis">Geraint F. Lewis</name>
<affiliation wicri:level="1"><mods:affiliation>Institute of Astronomy, School of Physics, A29, University of Sydney, NSW 2006, Australia</mods:affiliation>
<country xml:lang="fr">Australie</country>
<wicri:regionArea>Institute of Astronomy, School of Physics, A29, University of Sydney, NSW 2006</wicri:regionArea>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Irwin, Mike J" sort="Irwin, Mike J" uniqKey="Irwin M" first="Mike J." last="Irwin">Mike J. Irwin</name>
<affiliation><mods:affiliation>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA</mods:affiliation>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Ibata, Rodrigo A" sort="Ibata, Rodrigo A" uniqKey="Ibata R" first="Rodrigo A." last="Ibata">Rodrigo A. Ibata</name>
<affiliation wicri:level="1"><mods:affiliation>Observatoire de Strasbourg, 11, rue de l'Université, F‐67000, Strasbourg, France</mods:affiliation>
<country xml:lang="fr">France</country>
<wicri:regionArea>Observatoire de Strasbourg, 11, rue de l'Université, F‐67000, Strasbourg</wicri:regionArea>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Ferguson, Annette M N" sort="Ferguson, Annette M N" uniqKey="Ferguson A" first="Annette M. N." last="Ferguson">Annette M. N. Ferguson</name>
<affiliation wicri:level="4"><mods:affiliation>Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ</mods:affiliation>
<orgName type="university">Université d'Édimbourg</orgName>
<country>Royaume-Uni</country>
<placeName><settlement type="city">Édimbourg</settlement>
<region type="country">Écosse</region>
</placeName>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Tanvir, Nial" sort="Tanvir, Nial" uniqKey="Tanvir N" first="Nial" last="Tanvir">Nial Tanvir</name>
<affiliation><mods:affiliation>Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield AL10 9AB</mods:affiliation>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
<author><name sortKey="Irwin, Jonathan M" sort="Irwin, Jonathan M" uniqKey="Irwin J" first="Jonathan M." last="Irwin">Jonathan M. Irwin</name>
<affiliation><mods:affiliation>Institute of Astronomy, Madingley Road, Cambridge CB3 0HA</mods:affiliation>
</affiliation>
<affiliation wicri:level="1"><mods:affiliation>E-mail: bconn@physics.usyd.edu.au</mods:affiliation>
<country wicri:rule="url">Australie</country>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j" type="main">Monthly Notices of the Royal Astronomical Society</title>
<title level="j" type="alt">MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY</title>
<idno type="ISSN">0035-8711</idno>
<idno type="eISSN">1365-2966</idno>
<imprint><biblScope unit="vol">362</biblScope>
<biblScope unit="issue">2</biblScope>
<biblScope unit="page" from="475">475</biblScope>
<biblScope unit="page" to="488">488</biblScope>
<publisher>Blackwell Science Ltd</publisher>
<pubPlace> 23 Ainslie Place , Edinburgh EH3 6AJ , UK . Telephone (0131) 226 7232 Fax (0131) 226 3803 </pubPlace>
<date type="published" when="2005-09">2005-09</date>
</imprint>
<idno type="ISSN">0035-8711</idno>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0035-8711</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Accreting dwarf galaxy</term>
<term>Accretion</term>
<term>Accretion event</term>
<term>Arrubia</term>
<term>Base position</term>
<term>Bulk halo</term>
<term>Camera survey</term>
<term>Canary islands</term>
<term>Canis</term>
<term>Cent completeness</term>
<term>Cmds</term>
<term>Completeness curve</term>
<term>Corresponding model plot</term>
<term>Dark matter</term>
<term>Detection</term>
<term>Disc</term>
<term>Distance estimates</term>
<term>Dwarf</term>
<term>Dwarf galaxy</term>
<term>Eld</term>
<term>Field camera</term>
<term>Field camera survey</term>
<term>Galactic</term>
<term>Galactic anticentre</term>
<term>Galactic centre</term>
<term>Galactic component</term>
<term>Galactic components</term>
<term>Galactic disc</term>
<term>Galactic equator</term>
<term>Galactic features</term>
<term>Galactic halo</term>
<term>Galactic longitude</term>
<term>Galactic plane</term>
<term>Galactic population</term>
<term>Galactic view</term>
<term>Galactic warp</term>
<term>Galactocentric</term>
<term>Galactocentric distance</term>
<term>Galactocentric distance estimates</term>
<term>Galactocentric distances</term>
<term>Galaxy</term>
<term>Globular clusters</term>
<term>Gures</term>
<term>Halo</term>
<term>Halo component</term>
<term>Heliocentric</term>
<term>Heliocentric distance</term>
<term>Heliocentric distances</term>
<term>Hess</term>
<term>Hess plot</term>
<term>Hess plots</term>
<term>Ibata</term>
<term>Inner ring</term>
<term>Irwin</term>
<term>Irwin lewis</term>
<term>Isaac newton telescope</term>
<term>Kinematic survey</term>
<term>Local density</term>
<term>Longitude</term>
<term>Lower panels</term>
<term>Lower plot</term>
<term>Lower side</term>
<term>Magnitude completeness</term>
<term>Magnitude range</term>
<term>Main sequence</term>
<term>Main sequences</term>
<term>Majewski</term>
<term>Milky</term>
<term>Mnras</term>
<term>Model cmds</term>
<term>Monoceros</term>
<term>Monoceros ring</term>
<term>Newberg</term>
<term>Numerical simulations</term>
<term>Obvious feature</term>
<term>Open clusters</term>
<term>Opposite side</term>
<term>Outer ring</term>
<term>Overdensity</term>
<term>Overlap regions</term>
<term>Overlay</term>
<term>Panels show</term>
<term>Potential detections</term>
<term>Prograde</term>
<term>Prograde orbit</term>
<term>Real data</term>
<term>Redward</term>
<term>Redward trend</term>
<term>Robin</term>
<term>Robin creze</term>
<term>Sagittarius dwarf galaxy</term>
<term>Same manner</term>
<term>Sdss</term>
<term>Solar circle</term>
<term>Stellar</term>
<term>Stellar population</term>
<term>Style overlay</term>
<term>Symmetric pairs</term>
<term>Synthetic cmds</term>
<term>Synthetic galaxy model</term>
<term>Synthetic model</term>
<term>Systematic errors</term>
<term>Tentative detection</term>
<term>Tentative detections</term>
<term>Thick disc</term>
<term>Thin disc</term>
<term>Tidal</term>
<term>Tidal arms</term>
<term>Tidal debris</term>
<term>Tidal stream</term>
<term>Tidal streams</term>
<term>Total area</term>
<term>Triand</term>
<term>Triand structure</term>
<term>Various components</term>
<term>Velocity dispersion</term>
<term>Warp</term>
<term>Yanny</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Accreting dwarf galaxy</term>
<term>Accretion</term>
<term>Accretion event</term>
<term>Arrubia</term>
<term>Base position</term>
<term>Bulk halo</term>
<term>Camera survey</term>
<term>Canary islands</term>
<term>Canis</term>
<term>Cent completeness</term>
<term>Cmds</term>
<term>Completeness curve</term>
<term>Corresponding model plot</term>
<term>Dark matter</term>
<term>Detection</term>
<term>Disc</term>
<term>Distance estimates</term>
<term>Dwarf</term>
<term>Dwarf galaxy</term>
<term>Eld</term>
<term>Field camera</term>
<term>Field camera survey</term>
<term>Galactic</term>
<term>Galactic anticentre</term>
<term>Galactic centre</term>
<term>Galactic component</term>
<term>Galactic components</term>
<term>Galactic disc</term>
<term>Galactic equator</term>
<term>Galactic features</term>
<term>Galactic halo</term>
<term>Galactic longitude</term>
<term>Galactic plane</term>
<term>Galactic population</term>
<term>Galactic view</term>
<term>Galactic warp</term>
<term>Galactocentric</term>
<term>Galactocentric distance</term>
<term>Galactocentric distance estimates</term>
<term>Galactocentric distances</term>
<term>Galaxy</term>
<term>Globular clusters</term>
<term>Gures</term>
<term>Halo</term>
<term>Halo component</term>
<term>Heliocentric</term>
<term>Heliocentric distance</term>
<term>Heliocentric distances</term>
<term>Hess</term>
<term>Hess plot</term>
<term>Hess plots</term>
<term>Ibata</term>
<term>Inner ring</term>
<term>Irwin</term>
<term>Irwin lewis</term>
<term>Isaac newton telescope</term>
<term>Kinematic survey</term>
<term>Local density</term>
<term>Longitude</term>
<term>Lower panels</term>
<term>Lower plot</term>
<term>Lower side</term>
<term>Magnitude completeness</term>
<term>Magnitude range</term>
<term>Main sequence</term>
<term>Main sequences</term>
<term>Majewski</term>
<term>Milky</term>
<term>Mnras</term>
<term>Model cmds</term>
<term>Monoceros</term>
<term>Monoceros ring</term>
<term>Newberg</term>
<term>Numerical simulations</term>
<term>Obvious feature</term>
<term>Open clusters</term>
<term>Opposite side</term>
<term>Outer ring</term>
<term>Overdensity</term>
<term>Overlap regions</term>
<term>Overlay</term>
<term>Panels show</term>
<term>Potential detections</term>
<term>Prograde</term>
<term>Prograde orbit</term>
<term>Real data</term>
<term>Redward</term>
<term>Redward trend</term>
<term>Robin</term>
<term>Robin creze</term>
<term>Sagittarius dwarf galaxy</term>
<term>Same manner</term>
<term>Sdss</term>
<term>Solar circle</term>
<term>Stellar</term>
<term>Stellar population</term>
<term>Style overlay</term>
<term>Symmetric pairs</term>
<term>Synthetic cmds</term>
<term>Synthetic galaxy model</term>
<term>Synthetic model</term>
<term>Systematic errors</term>
<term>Tentative detection</term>
<term>Tentative detections</term>
<term>Thick disc</term>
<term>Thin disc</term>
<term>Tidal</term>
<term>Tidal arms</term>
<term>Tidal debris</term>
<term>Tidal stream</term>
<term>Tidal streams</term>
<term>Total area</term>
<term>Triand</term>
<term>Triand structure</term>
<term>Various components</term>
<term>Velocity dispersion</term>
<term>Warp</term>
<term>Yanny</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">We present the results of a wide‐field camera survey of the stars in the Monoceros Ring, thought to be an additional structure in the Milky Way of unknown origin. Lying roughly in the plane of the Milky Way, this may represent a unique equatorial accretion event which is contributing to the thick disc of the Galaxy. Alternatively, the Monoceros Ring may be a natural part of the disc formation process. With 10 pointings in symmetric pairs above and below the plane of the Galaxy, this survey spans 90° about the equator of the Milky Way. Signatures of the stream of stars were detected in three fields, (l, b) = (118°, +16°) and (150°, +15°) plus a more tentative detection at (150°, −15°). Galactocentric distance estimates to these structures gave ∼17, ∼17, and ∼13 kpc, respectively. The Monoceros Ring seems to be present on both sides of the Galactic plane, in a form different from that of the Galactic warp, suggestive of a tidal origin with streams multiply wrapping the Galaxy. A new model of the stream has shown a strong coincidence with our results and has also provided the opportunity to make several more detections in fields in which the stream is less significant. The confirmed detection at (l, b) = (123°, −19°) at ∼14, kpc from the Galactic Centre allows a re‐examination revealing a tentative new detection with a Galactocentric distance of ∼21 kpc. These detections also lie very close to the newly discovered structure in Triangulum–Andromedae hinting at a link between the two. The remaining six fields are apparently non‐detections although in light of these new models, closer inspection reveals tentative structure. With the overdensity of M giant stars in Canis Major being claimed both as a progenitor to the Monoceros Ring and alternatively a manifestation of the Milky Way warp, much is still unknown concerning this structure and its connection to the Monoceros Ring. Further constraints are needed for the numerical simulations to adequately resolve the increasingly complex view of this structure.</div>
</front>
</TEI>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Asie/explor/AustralieFrV1/Data/Istex/Curation
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000F73 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Istex/Curation/biblio.hfd -nk 000F73 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Asie |area= AustralieFrV1 |flux= Istex |étape= Curation |type= RBID |clé= ISTEX:536CB4E7BD4119712CEEEE2235992BB2CBB25374 |texte= The Isaac Newton Telescope Wide Field Camera survey of the Monoceros Ring: accretion origin or Galactic anomaly? }}
![]() | This area was generated with Dilib version V0.6.33. | ![]() |