Do bars drive spiral density waves?
We present deep near-infrared Ks-band Anglo-Australian Telescope Infrared Imager and Spectrograph observations of a selected sample of nearby barred spiral galaxies, including some with the strongest known bars. The sample covers a range of Hubble types from SB0− to SBc. The goal is to determine if...
| Autor: | |
|---|---|
| Tipo de documento: | artigo |
| Estado: | Versión aceptada para publicación |
| Data de publicação: | 2009 |
| País: | México |
| Recursos: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositório: | Repositorio Institucional del INAOE |
| Idioma: | inglês |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/1363 |
| Acesso em linha: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1363 |
| Access Level: | Acceso aberto |
| Palavra-chave: | info:eu-repo/classification/Inspec/Galaxies: kinematics and dynamics info:eu-repo/classification/Inspec/Galaxies: photometry info:eu-repo/classification/Inspec/Galaxies: spiral info:eu-repo/classification/Inspecx/Galaxies: structure info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/21 |
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Do bars drive spiral density waves?IVANIO PUERARIinfo:eu-repo/classification/Inspec/Galaxies: kinematics and dynamicsinfo:eu-repo/classification/Inspec/Galaxies: photometryinfo:eu-repo/classification/Inspec/Galaxies: spiralinfo:eu-repo/classification/Inspecx/Galaxies: structureinfo:eu-repo/classification/cti/1info:eu-repo/classification/cti/21info:eu-repo/classification/cti/21We present deep near-infrared Ks-band Anglo-Australian Telescope Infrared Imager and Spectrograph observations of a selected sample of nearby barred spiral galaxies, including some with the strongest known bars. The sample covers a range of Hubble types from SB0− to SBc. The goal is to determine if the torque strengths of the spirals correlate with those of the bars, which might be expected if the bars actually drive the spirals as has been predicted by theoretical studies. This issue has implications for interpreting bar and spiral fractions at high redshift. Analysis of previous samples suggested that such a correlation exists in the near-infrared, where effects of extinction and star formation are less important. However, the earlier samples had only a few excessively strong bars. Our new sample largely confirms our previous studies, but still any correlation is relatively weak. We find two galaxies, NGC 7513 and UGC 10862, where there is only a weak spiral in the presence of a very strong bar. We suggest that some spirals probably are driven by their bars at the same pattern speed, but that this may be only when the bar is growing or if there is abundant gas and dissipation.The Astronomical Journal2009-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1363reponame:Repositorio Institucional del INAOEinstname:Instituto Nacional de Astrofísica, Óptica y Electrónicainstacron:INAOEengcitation:Buta, Ronald J., et al., (2009). Do bars drive spiral density waves?, The Astronomical Journal,. Vol. 137(5):4487–4516info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0oai:inaoe.repositorioinstitucional.mx:1009/13632024-08-28T03:22:55Z |
| dc.title.none.fl_str_mv |
Do bars drive spiral density waves? |
| title |
Do bars drive spiral density waves? |
| spellingShingle |
Do bars drive spiral density waves? IVANIO PUERARI info:eu-repo/classification/Inspec/Galaxies: kinematics and dynamics info:eu-repo/classification/Inspec/Galaxies: photometry info:eu-repo/classification/Inspec/Galaxies: spiral info:eu-repo/classification/Inspecx/Galaxies: structure info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/21 info:eu-repo/classification/cti/21 |
| title_short |
Do bars drive spiral density waves? |
| title_full |
Do bars drive spiral density waves? |
| title_fullStr |
Do bars drive spiral density waves? |
| title_full_unstemmed |
Do bars drive spiral density waves? |
| title_sort |
Do bars drive spiral density waves? |
| dc.creator.none.fl_str_mv |
IVANIO PUERARI |
| author |
IVANIO PUERARI |
| author_facet |
IVANIO PUERARI |
| author_role |
author |
| dc.subject.none.fl_str_mv |
info:eu-repo/classification/Inspec/Galaxies: kinematics and dynamics info:eu-repo/classification/Inspec/Galaxies: photometry info:eu-repo/classification/Inspec/Galaxies: spiral info:eu-repo/classification/Inspecx/Galaxies: structure info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/21 info:eu-repo/classification/cti/21 |
| topic |
info:eu-repo/classification/Inspec/Galaxies: kinematics and dynamics info:eu-repo/classification/Inspec/Galaxies: photometry info:eu-repo/classification/Inspec/Galaxies: spiral info:eu-repo/classification/Inspecx/Galaxies: structure info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/21 info:eu-repo/classification/cti/21 |
| description |
We present deep near-infrared Ks-band Anglo-Australian Telescope Infrared Imager and Spectrograph observations of a selected sample of nearby barred spiral galaxies, including some with the strongest known bars. The sample covers a range of Hubble types from SB0− to SBc. The goal is to determine if the torque strengths of the spirals correlate with those of the bars, which might be expected if the bars actually drive the spirals as has been predicted by theoretical studies. This issue has implications for interpreting bar and spiral fractions at high redshift. Analysis of previous samples suggested that such a correlation exists in the near-infrared, where effects of extinction and star formation are less important. However, the earlier samples had only a few excessively strong bars. Our new sample largely confirms our previous studies, but still any correlation is relatively weak. We find two galaxies, NGC 7513 and UGC 10862, where there is only a weak spiral in the presence of a very strong bar. We suggest that some spirals probably are driven by their bars at the same pattern speed, but that this may be only when the bar is growing or if there is abundant gas and dissipation. |
| publishDate |
2009 |
| dc.date.none.fl_str_mv |
2009-05 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion |
| format |
article |
| status_str |
acceptedVersion |
| dc.identifier.none.fl_str_mv |
http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1363 |
| url |
http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1363 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
citation:Buta, Ronald J., et al., (2009). Do bars drive spiral density waves?, The Astronomical Journal,. Vol. 137(5):4487–4516 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0 |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0 |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
The Astronomical Journal |
| publisher.none.fl_str_mv |
The Astronomical Journal |
| dc.source.none.fl_str_mv |
reponame:Repositorio Institucional del INAOE instname:Instituto Nacional de Astrofísica, Óptica y Electrónica instacron:INAOE |
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Instituto Nacional de Astrofísica, Óptica y Electrónica |
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INAOE |
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INAOE |
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Repositorio Institucional del INAOE |
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Repositorio Institucional del INAOE |
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|
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1858174271200690176 |
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15,198674 |