NAOC Open IR
VALES: VII. Molecular and ionized gas properties in the pressure balanced interstellar medium of starburst galaxies at z similar to 0.15
Molina, Juan1,2; Ibar, Edo3; Godoy, Nicolas3,4; Escala, Andres2; Michiyama, Tomonari1; Cheng, Cheng3,5,6; Hughes, Thomas M.3,5,7,8; Baes, Maarten9; Xue, Yongquan7; Michalowski, Michal J.10; van der Werf, Paul11; Jiang, Xue-Jian12
2020-11-06
Source PublicationASTRONOMY & ASTROPHYSICS
ISSN0004-6361
Volume643Pages:21
AbstractContext. Spatially resolved observations of the ionized and molecular gas are critical for understanding the physical processes that govern the interstellar medium (ISM) in galaxies. The observation of starburst systems is also important as they present extreme gas conditions that may help to test different ISM models. However, matched resolution imaging at similar to kpc scales for both ISM gas phases are usually scarce, and the ISM properties of starbursts still remain poorly understood.Aims. We aim to study the morpho-kinematic properties of the ionized and molecular gas in three dusty starburst galaxies at z=0.12-0.17 to explore the relation between molecular ISM gas phase dynamics and the star-formation activity.Methods. We employ two-dimensional dynamical modelling to analyse Atacama Large Millimeter/submillimiter Array CO(1-0) and seeing-limited Spectrograph for INtegral Field Observations in the Near Infrared Paschen-alpha (Pa alpha) observations, tracing the molecular and ionized gas morpho-kinematics at similar to kpc-scales. We use a dynamical mass model, which accounts for beam-smearing effects, to constrain the CO-to-H-2 conversion factor and estimate the molecular gas mass content.Results. One starburst galaxy shows irregular morphology, which may indicate a major merger, while the other two systems show disc-like morpho-kinematics. The two disc-like starbursts show molecular gas velocity dispersion values comparable with those seen in local luminous and ultra luminous infrared galaxies but in an ISM with molecular gas fraction and surface density values in the range of the estimates reported for local star-forming galaxies. We find that these molecular gas velocity dispersion values can be explained by assuming vertical pressure equilibrium. We also find that the star-formation activity, traced by the Pa alpha emission line, is well correlated with the molecular gas content, suggesting an enhanced star-formation efficiency and depletion times of the order of similar to 0.1-1 Gyr. We find that the star-formation rate surface density (Sigma (SFR)) correlates with the ISM pressure set by self-gravity (P-grav) following a power law with an exponent close to 0.8.Conclusions. In dusty disc-like starburst galaxies, our data support the scenario in which the molecular gas velocity dispersion values are driven by the ISM pressure set by self-gravity and are responsible for maintaining the vertical pressure balance. The correlation between Sigma (SFR) and P-grav suggests that, in these dusty starbursts galaxies, the star-formation activity arises as a consequence of the ISM pressure balance.
Keywordgalaxies: starburst ISM: kinematics and dynamics galaxies: star formation
Funding OrganizationNational Science Foundation of China ; National Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; CONICYT ; CONICYT ; Proyecto Regular FONDECYT ; Proyecto Regular FONDECYT ; FONDECYT ; FONDECYT ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Centre, Poland through the SONATA BIS grant ; National Science Centre, Poland through the SONATA BIS grant ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; National Science Foundation of China ; National Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; CONICYT ; CONICYT ; Proyecto Regular FONDECYT ; Proyecto Regular FONDECYT ; FONDECYT ; FONDECYT ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Centre, Poland through the SONATA BIS grant ; National Science Centre, Poland through the SONATA BIS grant ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; National Science Foundation of China ; National Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; CONICYT ; CONICYT ; Proyecto Regular FONDECYT ; Proyecto Regular FONDECYT ; FONDECYT ; FONDECYT ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Centre, Poland through the SONATA BIS grant ; National Science Centre, Poland through the SONATA BIS grant ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; National Science Foundation of China ; National Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; CONICYT ; CONICYT ; Proyecto Regular FONDECYT ; Proyecto Regular FONDECYT ; FONDECYT ; FONDECYT ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Centre, Poland through the SONATA BIS grant ; National Science Centre, Poland through the SONATA BIS grant ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme
DOI10.1051/0004-6361/202039008
WOS KeywordSTAR-FORMING GALAXIES ; INTEGRAL FIELD SPECTROSCOPY ; H-ATLAS GALAXIES ; HIGH-REDSHIFT ; SUPERNOVA FEEDBACK ; ROTATION CURVES ; NEARBY GALAXIES ; MASS ; LINE ; EMISSION
Language英语
Funding ProjectNational Science Foundation of China[11421303] ; National Science Foundation of China[11721303] ; National Science Foundation of China[11890693] ; National Science Foundation of China[11991052] ; National Key R&D Program of China[2017YFA0402704] ; CONICYT[Basal AFB-170002] ; Proyecto Regular FONDECYT[1181663] ; FONDECYT[1171710] ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; CONICYT-PFCHA/Doctorado Nacional/2017 folio[21170650] ; National Natural Science Foundation of China[11803044] ; National Natural Science Foundation of China[11933003] ; National Natural Science Foundation of China[11673028] ; National Science Centre, Poland through the SONATA BIS grant[2018/30/E/ST9/00208] ; Chinese Academy of Sciences (CAS) ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme[099.B-0479(A)]
Funding OrganizationNational Science Foundation of China ; National Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; CONICYT ; CONICYT ; Proyecto Regular FONDECYT ; Proyecto Regular FONDECYT ; FONDECYT ; FONDECYT ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Centre, Poland through the SONATA BIS grant ; National Science Centre, Poland through the SONATA BIS grant ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; National Science Foundation of China ; National Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; CONICYT ; CONICYT ; Proyecto Regular FONDECYT ; Proyecto Regular FONDECYT ; FONDECYT ; FONDECYT ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Centre, Poland through the SONATA BIS grant ; National Science Centre, Poland through the SONATA BIS grant ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; National Science Foundation of China ; National Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; CONICYT ; CONICYT ; Proyecto Regular FONDECYT ; Proyecto Regular FONDECYT ; FONDECYT ; FONDECYT ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Centre, Poland through the SONATA BIS grant ; National Science Centre, Poland through the SONATA BIS grant ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; National Science Foundation of China ; National Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; CONICYT ; CONICYT ; Proyecto Regular FONDECYT ; Proyecto Regular FONDECYT ; FONDECYT ; FONDECYT ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; ICM Nucleo Milenio de Formacion Planetaria, NPF ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; CONICYT-PFCHA/Doctorado Nacional/2017 folio ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Science Centre, Poland through the SONATA BIS grant ; National Science Centre, Poland through the SONATA BIS grant ; Chinese Academy of Sciences (CAS) ; Chinese Academy of Sciences (CAS) ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme ; European Organization for Astronomical Research in the Southern Hemisphere under ESO programme
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000591277800001
PublisherEDP SCIENCES S A
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/81148
Collection中国科学院国家天文台
Corresponding AuthorMolina, Juan
Affiliation1.Peking Univ, Kavli Inst Astron & Astrophys, 5 Yiheyuan Rd, Beijing 100871, Peoples R China
2.Univ Chile, Dept Astron DAS, Casilla 36, Santiago, Chile
3.Univ Valparaiso, Inst Fis & Astron, Avda Gran Bretaila 1111, Valparaiso, Chile
4.Univ Valparaiso, Nucleo Milenio Formac Planetaria NPF, Av Gran Bretana 1111, Valparaiso, Chile
5.Chinese Acad Sci, Natl Astron Observ, South Amer Ctr Astron, CAS, Beijing 100101, Peoples R China
6.Chinese Acad Sci, CAS Key Lab Opt Astron, Natl Astron Observ, Beijing 100101, Peoples R China
7.Univ Sci & Technol China, Dept Astron, CAS Key Lab Res Galaxies & Cosmol, Hefei 230026, Peoples R China
8.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Peoples R China
9.Univ Ghent, Sterrenkundig Observ, Krijgslaan 281 S9, B-9000 Ghent, Belgium
10.Adam Mickiewicz Univ, Fac Phys, Astron Observ Inst, Ul Sloneczna 36, PL-60286 Poznan, Poland
11.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands
12.East Asian Observ, 660 North Aohoku Pl, Hilo, HI 96720 USA
Recommended Citation
GB/T 7714
Molina, Juan,Ibar, Edo,Godoy, Nicolas,et al. VALES: VII. Molecular and ionized gas properties in the pressure balanced interstellar medium of starburst galaxies at z similar to 0.15[J]. ASTRONOMY & ASTROPHYSICS,2020,643:21.
APA Molina, Juan.,Ibar, Edo.,Godoy, Nicolas.,Escala, Andres.,Michiyama, Tomonari.,...&Jiang, Xue-Jian.(2020).VALES: VII. Molecular and ionized gas properties in the pressure balanced interstellar medium of starburst galaxies at z similar to 0.15.ASTRONOMY & ASTROPHYSICS,643,21.
MLA Molina, Juan,et al."VALES: VII. Molecular and ionized gas properties in the pressure balanced interstellar medium of starburst galaxies at z similar to 0.15".ASTRONOMY & ASTROPHYSICS 643(2020):21.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Molina, Juan]'s Articles
[Ibar, Edo]'s Articles
[Godoy, Nicolas]'s Articles
Baidu academic
Similar articles in Baidu academic
[Molina, Juan]'s Articles
[Ibar, Edo]'s Articles
[Godoy, Nicolas]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Molina, Juan]'s Articles
[Ibar, Edo]'s Articles
[Godoy, Nicolas]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.