THE PdBI ARCSECOND WHIRLPOOL SURVEY (PAWS): MULTI-PHASE COLD GAS KINEMATIC OF M51
The kinematic complexity and the favorable position of M51 on the sky make this galaxy an ideal target to test different theories of spiral arm dynamics. Using a tilted-ring analysis supported by several other archival data sets, we update the estimation of M51's position angle (P.A. = (173 + o...
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| Veröffentlicht in: | The Astrophysical journal 2014-03, Vol.784 (1), p.1-18 |
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| container_title | The Astrophysical journal |
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| creator | Colombo, Dario Meidt, Sharon E Schinnerer, Eva Garcia-Burillo, Santiago Hughes, Annie Pety, Jerome Leroy, Adam K Dobbs, Clare L Dumas, Gaelle Thompson, Todd A Schuster, Karl F Kramer, Carsten |
| description | The kinematic complexity and the favorable position of M51 on the sky make this galaxy an ideal target to test different theories of spiral arm dynamics. Using a tilted-ring analysis supported by several other archival data sets, we update the estimation of M51's position angle (P.A. = (173 + or - 3)[degrees]) and inclination (i = (22 + or - 5)[degrees]). Harmonic decomposition of the high-resolution (~40 pc) CO velocity field shows the first kinematic evidence of an m = 3 wave in the inner disk of M51 with a corotation at R sub(CR, )m=3 = 1.1 + or - 0.1 kpc and a pattern speed of [Omega] sub(p, m=3) approximately 140 km s super(-1) kpc super(-1). Our joint analysis of HI and CO velocity fields at low and high spatial resolution reveals that the atomic and molecular gas phases respond differently to the spiral perturbation due to their different vertical distribution and emission morphology. |
| doi_str_mv | 10.1088/0004-637X/784/1/4 |
| format | Article |
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Using a tilted-ring analysis supported by several other archival data sets, we update the estimation of M51's position angle (P.A. = (173 + or - 3)[degrees]) and inclination (i = (22 + or - 5)[degrees]). Harmonic decomposition of the high-resolution (~40 pc) CO velocity field shows the first kinematic evidence of an m = 3 wave in the inner disk of M51 with a corotation at R sub(CR, )m=3 = 1.1 + or - 0.1 kpc and a pattern speed of [Omega] sub(p, m=3) approximately 140 km s super(-1) kpc super(-1). 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Using a tilted-ring analysis supported by several other archival data sets, we update the estimation of M51's position angle (P.A. = (173 + or - 3)[degrees]) and inclination (i = (22 + or - 5)[degrees]). Harmonic decomposition of the high-resolution (~40 pc) CO velocity field shows the first kinematic evidence of an m = 3 wave in the inner disk of M51 with a corotation at R sub(CR, )m=3 = 1.1 + or - 0.1 kpc and a pattern speed of [Omega] sub(p, m=3) approximately 140 km s super(-1) kpc super(-1). 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Meidt, Sharon E ; Schinnerer, Eva ; Garcia-Burillo, Santiago ; Hughes, Annie ; Pety, Jerome ; Leroy, Adam K ; Dobbs, Clare L ; Dumas, Gaelle ; Thompson, Todd A ; Schuster, Karl F ; Kramer, Carsten</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c439t-b0b70a78b399ad2e79525ebc4ffd5aa7b4b7bda67d3748907c88effbfb80c4363</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>AMPLITUDES</topic><topic>Astrophysics</topic><topic>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</topic><topic>CARBON MONOXIDE</topic><topic>Cold gas</topic><topic>DECOMPOSITION</topic><topic>DENSITY</topic><topic>Disks</topic><topic>DISTRIBUTION</topic><topic>DISTURBANCES</topic><topic>EMISSION</topic><topic>Emission analysis</topic><topic>Galactic Astrophysics</topic><topic>GALAXIES</topic><topic>Harmonics</topic><topic>INCLINATION</topic><topic>Kinematics</topic><topic>PERTURBATION THEORY</topic><topic>Physics</topic><topic>Sciences of the Universe</topic><topic>SPATIAL RESOLUTION</topic><topic>Spirals</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Colombo, Dario</creatorcontrib><creatorcontrib>Meidt, Sharon E</creatorcontrib><creatorcontrib>Schinnerer, Eva</creatorcontrib><creatorcontrib>Garcia-Burillo, Santiago</creatorcontrib><creatorcontrib>Hughes, Annie</creatorcontrib><creatorcontrib>Pety, Jerome</creatorcontrib><creatorcontrib>Leroy, Adam K</creatorcontrib><creatorcontrib>Dobbs, Clare L</creatorcontrib><creatorcontrib>Dumas, Gaelle</creatorcontrib><creatorcontrib>Thompson, Todd A</creatorcontrib><creatorcontrib>Schuster, Karl F</creatorcontrib><creatorcontrib>Kramer, Carsten</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><collection>OSTI.GOV</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Colombo, Dario</au><au>Meidt, Sharon E</au><au>Schinnerer, Eva</au><au>Garcia-Burillo, Santiago</au><au>Hughes, Annie</au><au>Pety, Jerome</au><au>Leroy, Adam K</au><au>Dobbs, Clare L</au><au>Dumas, Gaelle</au><au>Thompson, Todd A</au><au>Schuster, Karl F</au><au>Kramer, Carsten</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>THE PdBI ARCSECOND WHIRLPOOL SURVEY (PAWS): MULTI-PHASE COLD GAS KINEMATIC OF M51</atitle><jtitle>The Astrophysical journal</jtitle><date>2014-03-20</date><risdate>2014</risdate><volume>784</volume><issue>1</issue><spage>1</spage><epage>18</epage><pages>1-18</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>The kinematic complexity and the favorable position of M51 on the sky make this galaxy an ideal target to test different theories of spiral arm dynamics. Using a tilted-ring analysis supported by several other archival data sets, we update the estimation of M51's position angle (P.A. = (173 + or - 3)[degrees]) and inclination (i = (22 + or - 5)[degrees]). Harmonic decomposition of the high-resolution (~40 pc) CO velocity field shows the first kinematic evidence of an m = 3 wave in the inner disk of M51 with a corotation at R sub(CR, )m=3 = 1.1 + or - 0.1 kpc and a pattern speed of [Omega] sub(p, m=3) approximately 140 km s super(-1) kpc super(-1). 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| source | Institute of Physics Open Access Journal Titles; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | AMPLITUDES Astrophysics ASTROPHYSICS, COSMOLOGY AND ASTRONOMY CARBON MONOXIDE Cold gas DECOMPOSITION DENSITY Disks DISTRIBUTION DISTURBANCES EMISSION Emission analysis Galactic Astrophysics GALAXIES Harmonics INCLINATION Kinematics PERTURBATION THEORY Physics Sciences of the Universe SPATIAL RESOLUTION Spirals |
| title | THE PdBI ARCSECOND WHIRLPOOL SURVEY (PAWS): MULTI-PHASE COLD GAS KINEMATIC OF M51 |
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