The Warped HI Layer of the Outer Galaxy
Using the Leiden/Dwingeloo Survey (Hartmann & Burton 1997) of the Galactic sky north of declination -30 degrees as the principal component of a composite data cube, the structure of the warped HI layer of the outer Galaxy was displayed by converting the data cube from heliocentric (l,b,v) coordi...
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| creator | Voskes, Tom Burton, W. Butler |
| description | Using the Leiden/Dwingeloo Survey (Hartmann & Burton 1997) of the Galactic
sky north of declination -30 degrees as the principal component of a composite
data cube, the structure of the warped HI layer of the outer Galaxy was
displayed by converting the data cube from heliocentric (l,b,v) coordinates to
galactocentric (R,theta,z) coordinates. We masked out known high-velocity-cloud
complexes that might otherwise have contaminated the resulting description of
the warped layer. We considered analogous displays under controlled
circumstances by using as input medium a simulation of the same complete
(l,b,v) data cube corresponding to a modeled HI Galaxy of known morphology and
kinematics. By varying this artificial input we were able to check our method
of converting the data cube and to put constraints on the global parameters
that have been used to explain different asymmetries in the heliocentric data. |
| doi_str_mv | 10.48550/arxiv.astro-ph/0601653 |
| format | Article |
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sky north of declination -30 degrees as the principal component of a composite
data cube, the structure of the warped HI layer of the outer Galaxy was
displayed by converting the data cube from heliocentric (l,b,v) coordinates to
galactocentric (R,theta,z) coordinates. We masked out known high-velocity-cloud
complexes that might otherwise have contaminated the resulting description of
the warped layer. We considered analogous displays under controlled
circumstances by using as input medium a simulation of the same complete
(l,b,v) data cube corresponding to a modeled HI Galaxy of known morphology and
kinematics. By varying this artificial input we were able to check our method
of converting the data cube and to put constraints on the global parameters
that have been used to explain different asymmetries in the heliocentric data.</description><identifier>DOI: 10.48550/arxiv.astro-ph/0601653</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>2006-01</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/0601653$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.astro-ph/0601653$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Voskes, Tom</creatorcontrib><creatorcontrib>Burton, W. Butler</creatorcontrib><title>The Warped HI Layer of the Outer Galaxy</title><description>Using the Leiden/Dwingeloo Survey (Hartmann & Burton 1997) of the Galactic
sky north of declination -30 degrees as the principal component of a composite
data cube, the structure of the warped HI layer of the outer Galaxy was
displayed by converting the data cube from heliocentric (l,b,v) coordinates to
galactocentric (R,theta,z) coordinates. We masked out known high-velocity-cloud
complexes that might otherwise have contaminated the resulting description of
the warped layer. We considered analogous displays under controlled
circumstances by using as input medium a simulation of the same complete
(l,b,v) data cube corresponding to a modeled HI Galaxy of known morphology and
kinematics. By varying this artificial input we were able to check our method
of converting the data cube and to put constraints on the global parameters
that have been used to explain different asymmetries in the heliocentric data.</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>2006</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNotzjsLwjAUBeAsDqL-BrOIU_WmeY8ivqDQpeBYbkxKCxVLrGL_vaJOh3OGw0fInMFKGClhjfHVPFd47-Mt6eo1KGBK8jFZFnWgZ4xd8PR4ohkOIdJbRfvPnD_6Tzlgi69hSkYVtvcw--eEFPtdsT0mWX44bTdZgtryxFvOHajUXaQQWjipNU-1MtobzsCkwFhAvAADaypnvVOoQiqFD0JZJ5FPyOJ3-_WWXWyuGIfy6y67uvy7-RsuLD4w</recordid><startdate>20060127</startdate><enddate>20060127</enddate><creator>Voskes, Tom</creator><creator>Burton, W. Butler</creator><scope>GOX</scope></search><sort><creationdate>20060127</creationdate><title>The Warped HI Layer of the Outer Galaxy</title><author>Voskes, Tom ; Burton, W. Butler</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a793-d933b062bc54474b577327687d831082011eaac01098fb9db6a6e254de469b5a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</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>Voskes, Tom</creatorcontrib><creatorcontrib>Burton, W. Butler</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Voskes, Tom</au><au>Burton, W. Butler</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Warped HI Layer of the Outer Galaxy</atitle><date>2006-01-27</date><risdate>2006</risdate><abstract>Using the Leiden/Dwingeloo Survey (Hartmann & Burton 1997) of the Galactic
sky north of declination -30 degrees as the principal component of a composite
data cube, the structure of the warped HI layer of the outer Galaxy was
displayed by converting the data cube from heliocentric (l,b,v) coordinates to
galactocentric (R,theta,z) coordinates. We masked out known high-velocity-cloud
complexes that might otherwise have contaminated the resulting description of
the warped layer. We considered analogous displays under controlled
circumstances by using as input medium a simulation of the same complete
(l,b,v) data cube corresponding to a modeled HI Galaxy of known morphology and
kinematics. By varying this artificial input we were able to check our method
of converting the data cube and to put constraints on the global parameters
that have been used to explain different asymmetries in the heliocentric data.</abstract><doi>10.48550/arxiv.astro-ph/0601653</doi><oa>free_for_read</oa></addata></record> |
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| identifier | DOI: 10.48550/arxiv.astro-ph/0601653 |
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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 | The Warped HI Layer of the Outer Galaxy |
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