The VMC Survey – XXIV. Signatures of tidally stripped stellar populations from the inner Small Magellanic Cloud
Abstract We study the luminosity function of intermediate-age red clump stars using deep, near-infrared photometric data covering ∼20 deg2 located throughout the central part of the Small Magellanic Cloud (SMC), comprising the main body and the galaxy's eastern wing, based on observations obtai...
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| Veröffentlicht in: | Monthly notices of the Royal Astronomical Society 2017-06, Vol.467 (3), p.2980-2995 |
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| creator | Subramanian, Smitha Rubele, Stefano Sun, Ning-Chen Girardi, Léo de Grijs, Richard van Loon, Jacco Th Cioni, Maria-Rosa L. Piatti, Andrés E. Bekki, Kenji Emerson, Jim Ivanov, Valentin D. Kerber, Leandro Marconi, Marcella Ripepi, Vincenzo Tatton, Benjamin L. |
| description | Abstract
We study the luminosity function of intermediate-age red clump stars using deep, near-infrared photometric data covering ∼20 deg2 located throughout the central part of the Small Magellanic Cloud (SMC), comprising the main body and the galaxy's eastern wing, based on observations obtained with the VISTA Survey of the Magellanic Clouds (VMC). We identified regions that show a foreground population (∼11.8 ± 2.0 kpc in front of the main body) in the form of a distance bimodality in the red clump distribution. The most likely explanation for the origin of this feature is tidal stripping from the SMC rather than the extended stellar haloes of the Magellanic Clouds and/or tidally stripped stars from the Large Magellanic Cloud. The homogeneous and continuous VMC data trace this feature in the direction of the Magellanic Bridge and, particularly, identify (for the first time) the inner region (∼2–2.5 kpc from the centre) from where the signatures of interactions start becoming evident. This result provides observational evidence of the formation of the Magellanic Bridge from tidally stripped material from the SMC. |
| doi_str_mv | 10.1093/mnras/stx205 |
| format | Article |
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We study the luminosity function of intermediate-age red clump stars using deep, near-infrared photometric data covering ∼20 deg2 located throughout the central part of the Small Magellanic Cloud (SMC), comprising the main body and the galaxy's eastern wing, based on observations obtained with the VISTA Survey of the Magellanic Clouds (VMC). We identified regions that show a foreground population (∼11.8 ± 2.0 kpc in front of the main body) in the form of a distance bimodality in the red clump distribution. The most likely explanation for the origin of this feature is tidal stripping from the SMC rather than the extended stellar haloes of the Magellanic Clouds and/or tidally stripped stars from the Large Magellanic Cloud. The homogeneous and continuous VMC data trace this feature in the direction of the Magellanic Bridge and, particularly, identify (for the first time) the inner region (∼2–2.5 kpc from the centre) from where the signatures of interactions start becoming evident. This result provides observational evidence of the formation of the Magellanic Bridge from tidally stripped material from the SMC.</description><identifier>ISSN: 0035-8711</identifier><identifier>EISSN: 1365-2966</identifier><identifier>DOI: 10.1093/mnras/stx205</identifier><language>eng</language><publisher>Oxford University Press</publisher><ispartof>Monthly notices of the Royal Astronomical Society, 2017-06, Vol.467 (3), p.2980-2995</ispartof><rights>2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society 2017</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c305t-2abca36e631c048cd254392386631b4ea52e79c8c058cb9e562f0797f23a73ec3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1604,27924,27925</link.rule.ids><linktorsrc>$$Uhttps://dx.doi.org/10.1093/mnras/stx205$$EView_record_in_Oxford_University_Press$$FView_record_in_$$GOxford_University_Press</linktorsrc></links><search><creatorcontrib>Subramanian, Smitha</creatorcontrib><creatorcontrib>Rubele, Stefano</creatorcontrib><creatorcontrib>Sun, Ning-Chen</creatorcontrib><creatorcontrib>Girardi, Léo</creatorcontrib><creatorcontrib>de Grijs, Richard</creatorcontrib><creatorcontrib>van Loon, Jacco Th</creatorcontrib><creatorcontrib>Cioni, Maria-Rosa L.</creatorcontrib><creatorcontrib>Piatti, Andrés E.</creatorcontrib><creatorcontrib>Bekki, Kenji</creatorcontrib><creatorcontrib>Emerson, Jim</creatorcontrib><creatorcontrib>Ivanov, Valentin D.</creatorcontrib><creatorcontrib>Kerber, Leandro</creatorcontrib><creatorcontrib>Marconi, Marcella</creatorcontrib><creatorcontrib>Ripepi, Vincenzo</creatorcontrib><creatorcontrib>Tatton, Benjamin L.</creatorcontrib><title>The VMC Survey – XXIV. Signatures of tidally stripped stellar populations from the inner Small Magellanic Cloud</title><title>Monthly notices of the Royal Astronomical Society</title><description>Abstract
We study the luminosity function of intermediate-age red clump stars using deep, near-infrared photometric data covering ∼20 deg2 located throughout the central part of the Small Magellanic Cloud (SMC), comprising the main body and the galaxy's eastern wing, based on observations obtained with the VISTA Survey of the Magellanic Clouds (VMC). We identified regions that show a foreground population (∼11.8 ± 2.0 kpc in front of the main body) in the form of a distance bimodality in the red clump distribution. The most likely explanation for the origin of this feature is tidal stripping from the SMC rather than the extended stellar haloes of the Magellanic Clouds and/or tidally stripped stars from the Large Magellanic Cloud. The homogeneous and continuous VMC data trace this feature in the direction of the Magellanic Bridge and, particularly, identify (for the first time) the inner region (∼2–2.5 kpc from the centre) from where the signatures of interactions start becoming evident. 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Signatures of tidally stripped stellar populations from the inner Small Magellanic Cloud</atitle><jtitle>Monthly notices of the Royal Astronomical Society</jtitle><date>2017-06-01</date><risdate>2017</risdate><volume>467</volume><issue>3</issue><spage>2980</spage><epage>2995</epage><pages>2980-2995</pages><issn>0035-8711</issn><eissn>1365-2966</eissn><abstract>Abstract
We study the luminosity function of intermediate-age red clump stars using deep, near-infrared photometric data covering ∼20 deg2 located throughout the central part of the Small Magellanic Cloud (SMC), comprising the main body and the galaxy's eastern wing, based on observations obtained with the VISTA Survey of the Magellanic Clouds (VMC). We identified regions that show a foreground population (∼11.8 ± 2.0 kpc in front of the main body) in the form of a distance bimodality in the red clump distribution. The most likely explanation for the origin of this feature is tidal stripping from the SMC rather than the extended stellar haloes of the Magellanic Clouds and/or tidally stripped stars from the Large Magellanic Cloud. The homogeneous and continuous VMC data trace this feature in the direction of the Magellanic Bridge and, particularly, identify (for the first time) the inner region (∼2–2.5 kpc from the centre) from where the signatures of interactions start becoming evident. This result provides observational evidence of the formation of the Magellanic Bridge from tidally stripped material from the SMC.</abstract><pub>Oxford University Press</pub><doi>10.1093/mnras/stx205</doi><tpages>16</tpages><oa>free_for_read</oa></addata></record> |
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| title | The VMC Survey – XXIV. Signatures of tidally stripped stellar populations from the inner Small Magellanic Cloud |
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