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Dark nebulae, globules, and protostars / edited by B. Lynds
| Dark nebulae, globules, and protostars / edited by B. Lynds |
| Autore | Lynds, B. |
| Pubbl/distr/stampa | Tucson : University of Arizona Press, 1971 |
| Descrizione fisica | 1 v. : ill. ; 24 cm. |
| Soggetto topico |
Galaxies
Interstellar matter Protostars |
| Classificazione |
52.9.55
52.9.56 523.1'12 QB401 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNISALENTO-991000881749707536 |
Lynds, B.
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| Tucson : University of Arizona Press, 1971 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. del Salento | ||
| ||
A few tens au scale physical and chemical structures around young low-mass protostars / / Yoko Oya
| A few tens au scale physical and chemical structures around young low-mass protostars / / Yoko Oya |
| Autore | Oya Yoko |
| Pubbl/distr/stampa | Singapore : , : Springer, , [2022] |
| Descrizione fisica | 1 online resource (219 pages) |
| Disciplina | 810 |
| Collana | Springer Theses |
| Soggetto topico | Protostars |
| ISBN |
9789811917080
9789811917073 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Supervisor's Foreword -- Preface -- Acknowledgements -- Contents -- 1 Introduction -- 1.1 Formation of Low-Mass (Solar-Type) Stars -- 1.2 Radio Astronomy -- 1.3 Astrochemistry in Star-Forming Region -- 1.3.1 1980s: Astrochemistry in High- and Low-Mass Star-Forming Region -- 1.3.2 1990s: Chemical Composition at a 103 au Scale -- 1.3.3 2000s: Chemical Diversity at a 102-103 au Scale -- 1.3.4 2010s: ALMA Era at 10-102 au Scale -- 1.4 Motivation for This Research -- 1.5 Outline of This Thesis -- References -- 2 ALMA Observation -- 2.1 Principles of Interferometers -- 2.1.1 Coordinate System -- 2.1.2 Correlation Function and Cross Power Spectrum -- 2.1.3 Visibility -- 2.2 ALMA -- 2.2.1 ALMA Site -- 2.2.2 Antennas -- 2.2.3 Receivers -- 2.2.4 Backends -- 2.3 Observations with Interferometers -- 2.3.1 Calibration -- 2.3.2 Observed Intensity Distribution -- 2.3.3 CLEAN Method -- References -- 3 Model Calculation -- 3.1 Introduction -- 3.2 Infalling-Rotating Envelope Model -- 3.2.1 Configuration of the Infalling-Rotating Envelope Model -- 3.2.2 Infalling-Rotating Envelope Model with Various Physical Parameters -- 3.3 Keplerian Model -- 3.4 Outflow Model -- 3.5 Physical Parameters of the Models -- 3.6 Examples of the Model Analysis -- 3.6.1 The L1527 Case -- 3.6.2 The TMC-1A Case -- 3.6.3 Some Caveats for the Model -- References -- 4 L1527 -- 4.1 Introduction -- 4.2 Results -- 4.2.1 Overall Distribution -- 4.2.2 Envelope -- 4.2.3 Outflow -- 4.3 Discussion -- 4.3.1 Direction of the Outflow -- 4.3.2 Angular Momentum -- References -- 5 IRAS 15398-3359 -- 5.1 Introduction -- 5.2 Observations -- 5.3 Results -- 5.3.1 Overall Distribution of H2CO and CCH -- 5.3.2 Outflow -- 5.3.3 Protostellar Envelope -- 5.3.4 Comparison with an Envelope Model -- 5.4 Discussion -- References -- 6 IRAS 16293-2422 Source A -- 6.1 Introduction -- 6.2 Observation Data.
6.3 Molecular Line Distribution -- 6.4 Velocity Structure -- 6.4.1 OCS -- 6.4.2 CH3OH and HCOOCH3 -- 6.4.3 H2CS -- 6.5 Infalling-Rotating Envelope Model -- 6.5.1 OCS -- 6.5.2 CH3OH and HCOOCH3 -- 6.5.3 H2CS -- 6.6 Discussion -- 6.6.1 Infalling-Rotating Envelope and Its Centrifugal Barrier -- 6.6.2 Origin of the Chemical Change Around the Centrifugal Barrier -- 6.6.3 Gas Kinetic Temperatures of H2CS -- 6.6.4 Abundance of HCOOCH3 Relative to CH3OH -- 6.7 Summary of This Chapter -- References -- 7 IRAS 16293-2422 Source B -- 7.1 Introduction -- 7.2 Observation -- 7.3 Distribution -- 7.4 Kinematic Structure -- 7.4.1 Observed Features -- 7.4.2 Comparison of Molecular Distribution with the Source A Case -- 7.5 Modelling -- 7.5.1 Infalling-Rotating Envelope Model -- 7.5.2 Origin of the Inverse P-Cygni Profile -- 7.6 Outflow -- 7.7 Gas Kinetic Temperature -- 7.8 Abundance of Metafont Relative to CH3OH -- 7.9 Summary of This Chapter -- References -- 8 L483 -- 8.1 Introduction -- 8.2 Observation -- 8.3 Distribution -- 8.4 Kinematic Structure -- 8.4.1 Geometrical Configuration -- 8.4.2 CS -- 8.4.3 SO and HNCO -- 8.4.4 NH2CHO and Metafont -- 8.5 Analysis with the Models for the Disk/Envelope System -- 8.6 Outflow Structure -- 8.6.1 Outflow Cavity Wall Traced by CS -- 8.6.2 Comparison with the Outflow Model -- 8.6.3 Rotation Motion in the Outflow -- 8.6.4 SiO Emission -- 8.7 Chemical Composition -- 8.8 Summary of This Chapter -- References -- 9 Chemical Differentiation -- 9.1 Chemical Diversity -- 9.1.1 Chemical Diversity in a Disk Forming Region -- 9.1.2 Which Kind of the Chemical Characteristics is Common? -- 9.2 Chemical Change -- 9.2.1 Drastic Chemical Change Around the Centrifugal Barrier -- 9.2.2 Tracers in WCCC and Hot Corino Sources -- References -- 10 Physical Diversity -- 10.1 Evolution from Envelopes to Disks. 10.2 Angular Momentum of the Envelope Gas -- 10.3 Relation Between the Envelope and the Outflow -- 10.4 Evolution of Outflows -- 10.4.1 Comparison Between L1527 and IRAS 15398-3359 -- 10.4.2 Relation to Dynamical Ages -- References -- 11 Conclusion -- 11.1 Summary of This Thesis -- 11.2 Future Prospects -- 11.2.1 Transition Zone from the Envelope to the Disk -- 11.2.2 How about in More Evolved Sources? -- 11.2.3 Chemical Heritage: Importance of Sulfur Chemistry -- References -- Appendix A Desorption Temperature -- A.1 Balance of the Adsorption and the Desorption -- Appendix Curriculum Vitae. |
| Record Nr. | UNISA-996499863303316 |
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Oya Yoko
|
||
| Singapore : , : Springer, , [2022] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
| ||
A few tens au scale physical and chemical structures around young low-mass protostars / / Yoko Oya
| A few tens au scale physical and chemical structures around young low-mass protostars / / Yoko Oya |
| Autore | Oya Yoko |
| Pubbl/distr/stampa | Singapore : , : Springer, , [2022] |
| Descrizione fisica | 1 online resource (219 pages) |
| Disciplina | 810 |
| Collana | Springer Theses |
| Soggetto topico | Protostars |
| ISBN |
9789811917080
9789811917073 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Supervisor's Foreword -- Preface -- Acknowledgements -- Contents -- 1 Introduction -- 1.1 Formation of Low-Mass (Solar-Type) Stars -- 1.2 Radio Astronomy -- 1.3 Astrochemistry in Star-Forming Region -- 1.3.1 1980s: Astrochemistry in High- and Low-Mass Star-Forming Region -- 1.3.2 1990s: Chemical Composition at a 103 au Scale -- 1.3.3 2000s: Chemical Diversity at a 102-103 au Scale -- 1.3.4 2010s: ALMA Era at 10-102 au Scale -- 1.4 Motivation for This Research -- 1.5 Outline of This Thesis -- References -- 2 ALMA Observation -- 2.1 Principles of Interferometers -- 2.1.1 Coordinate System -- 2.1.2 Correlation Function and Cross Power Spectrum -- 2.1.3 Visibility -- 2.2 ALMA -- 2.2.1 ALMA Site -- 2.2.2 Antennas -- 2.2.3 Receivers -- 2.2.4 Backends -- 2.3 Observations with Interferometers -- 2.3.1 Calibration -- 2.3.2 Observed Intensity Distribution -- 2.3.3 CLEAN Method -- References -- 3 Model Calculation -- 3.1 Introduction -- 3.2 Infalling-Rotating Envelope Model -- 3.2.1 Configuration of the Infalling-Rotating Envelope Model -- 3.2.2 Infalling-Rotating Envelope Model with Various Physical Parameters -- 3.3 Keplerian Model -- 3.4 Outflow Model -- 3.5 Physical Parameters of the Models -- 3.6 Examples of the Model Analysis -- 3.6.1 The L1527 Case -- 3.6.2 The TMC-1A Case -- 3.6.3 Some Caveats for the Model -- References -- 4 L1527 -- 4.1 Introduction -- 4.2 Results -- 4.2.1 Overall Distribution -- 4.2.2 Envelope -- 4.2.3 Outflow -- 4.3 Discussion -- 4.3.1 Direction of the Outflow -- 4.3.2 Angular Momentum -- References -- 5 IRAS 15398-3359 -- 5.1 Introduction -- 5.2 Observations -- 5.3 Results -- 5.3.1 Overall Distribution of H2CO and CCH -- 5.3.2 Outflow -- 5.3.3 Protostellar Envelope -- 5.3.4 Comparison with an Envelope Model -- 5.4 Discussion -- References -- 6 IRAS 16293-2422 Source A -- 6.1 Introduction -- 6.2 Observation Data.
6.3 Molecular Line Distribution -- 6.4 Velocity Structure -- 6.4.1 OCS -- 6.4.2 CH3OH and HCOOCH3 -- 6.4.3 H2CS -- 6.5 Infalling-Rotating Envelope Model -- 6.5.1 OCS -- 6.5.2 CH3OH and HCOOCH3 -- 6.5.3 H2CS -- 6.6 Discussion -- 6.6.1 Infalling-Rotating Envelope and Its Centrifugal Barrier -- 6.6.2 Origin of the Chemical Change Around the Centrifugal Barrier -- 6.6.3 Gas Kinetic Temperatures of H2CS -- 6.6.4 Abundance of HCOOCH3 Relative to CH3OH -- 6.7 Summary of This Chapter -- References -- 7 IRAS 16293-2422 Source B -- 7.1 Introduction -- 7.2 Observation -- 7.3 Distribution -- 7.4 Kinematic Structure -- 7.4.1 Observed Features -- 7.4.2 Comparison of Molecular Distribution with the Source A Case -- 7.5 Modelling -- 7.5.1 Infalling-Rotating Envelope Model -- 7.5.2 Origin of the Inverse P-Cygni Profile -- 7.6 Outflow -- 7.7 Gas Kinetic Temperature -- 7.8 Abundance of Metafont Relative to CH3OH -- 7.9 Summary of This Chapter -- References -- 8 L483 -- 8.1 Introduction -- 8.2 Observation -- 8.3 Distribution -- 8.4 Kinematic Structure -- 8.4.1 Geometrical Configuration -- 8.4.2 CS -- 8.4.3 SO and HNCO -- 8.4.4 NH2CHO and Metafont -- 8.5 Analysis with the Models for the Disk/Envelope System -- 8.6 Outflow Structure -- 8.6.1 Outflow Cavity Wall Traced by CS -- 8.6.2 Comparison with the Outflow Model -- 8.6.3 Rotation Motion in the Outflow -- 8.6.4 SiO Emission -- 8.7 Chemical Composition -- 8.8 Summary of This Chapter -- References -- 9 Chemical Differentiation -- 9.1 Chemical Diversity -- 9.1.1 Chemical Diversity in a Disk Forming Region -- 9.1.2 Which Kind of the Chemical Characteristics is Common? -- 9.2 Chemical Change -- 9.2.1 Drastic Chemical Change Around the Centrifugal Barrier -- 9.2.2 Tracers in WCCC and Hot Corino Sources -- References -- 10 Physical Diversity -- 10.1 Evolution from Envelopes to Disks. 10.2 Angular Momentum of the Envelope Gas -- 10.3 Relation Between the Envelope and the Outflow -- 10.4 Evolution of Outflows -- 10.4.1 Comparison Between L1527 and IRAS 15398-3359 -- 10.4.2 Relation to Dynamical Ages -- References -- 11 Conclusion -- 11.1 Summary of This Thesis -- 11.2 Future Prospects -- 11.2.1 Transition Zone from the Envelope to the Disk -- 11.2.2 How about in More Evolved Sources? -- 11.2.3 Chemical Heritage: Importance of Sulfur Chemistry -- References -- Appendix A Desorption Temperature -- A.1 Balance of the Adsorption and the Desorption -- Appendix Curriculum Vitae. |
| Record Nr. | UNINA-9910629285203321 |
|
Oya Yoko
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||
| Singapore : , : Springer, , [2022] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Protostars and planets III / Eugene H. Levy, Jonathan I. Lunine (eds.) ; with the assistance of M. Guerrieri and M.S. Matthews ; with 91 collaborating authors
| Protostars and planets III / Eugene H. Levy, Jonathan I. Lunine (eds.) ; with the assistance of M. Guerrieri and M.S. Matthews ; with 91 collaborating authors |
| Autore | Levy, Eugene H. |
| Pubbl/distr/stampa | Tucson : University of Arizona Press, c1993 |
| Descrizione fisica | xiii, 1596 p. ; 23 cm. |
| Altri autori (Persone) |
Lunine, Jonathan I.
Guerrieri, M. Matthews, Mildred Shapley |
| Collana | Space science text series |
| Soggetto topico |
Disks (Astrophysics)
Interstellar clouds Planetology Protostars Stars-Formation |
| ISBN | 0816513341 |
| Classificazione |
52.9.53
52.9.523 52.9.528 QB806.P78 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNISALENTO-991001191289707536 |
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Levy, Eugene H.
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| Tucson : University of Arizona Press, c1993 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. del Salento | ||
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Protostars and planets VI / / edited by Henrik Beuther [and three others] ; with the assistance of Renee Dotson ; with 250 collaborating authors
| Protostars and planets VI / / edited by Henrik Beuther [and three others] ; with the assistance of Renee Dotson ; with 250 collaborating authors |
| Pubbl/distr/stampa | Tucson, Arizona ; ; Houston, Texas : , : The University of Arizona Press : , : Lunar and Planetary Institute, , 2014 |
| Descrizione fisica | 1 online resource (945 p.) |
| Disciplina | 523.2/4 |
| Collana | University of Arizona Space Science Series |
| Soggetto topico |
Protostars
Planets - Origin Molecular clouds Stars - Formation |
| Soggetto genere / forma | Electronic books. |
| ISBN | 0-8165-9876-2 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Part I. Molecular clouds and star formation -- Part II. Disk formation and evolution -- Part III. Planetary systems : search, formation and evolution -- Part IV. Astrophysical conditions for life. |
| Record Nr. | UNINA-9910463800603321 |
| Tucson, Arizona ; ; Houston, Texas : , : The University of Arizona Press : , : Lunar and Planetary Institute, , 2014 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Protostars and planets VI / / edited by Henrik Beuther [and three others] ; with the assistance of Renee Dotson ; with 250 collaborating authors
| Protostars and planets VI / / edited by Henrik Beuther [and three others] ; with the assistance of Renee Dotson ; with 250 collaborating authors |
| Pubbl/distr/stampa | Tucson, Arizona ; ; Houston, Texas : , : The University of Arizona Press : , : Lunar and Planetary Institute, , 2014 |
| Descrizione fisica | 1 online resource (945 p.) |
| Disciplina | 523.2/4 |
| Collana | University of Arizona Space Science Series |
| Soggetto topico |
Protostars
Planets - Origin Molecular clouds Stars - Formation |
| ISBN | 0-8165-9876-2 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Part I. Molecular clouds and star formation -- Part II. Disk formation and evolution -- Part III. Planetary systems : search, formation and evolution -- Part IV. Astrophysical conditions for life. |
| Record Nr. | UNINA-9910787914703321 |
| Tucson, Arizona ; ; Houston, Texas : , : The University of Arizona Press : , : Lunar and Planetary Institute, , 2014 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Protostars and planets VI / / edited by Henrik Beuther [and three others] ; with the assistance of Renee Dotson ; with 250 collaborating authors
| Protostars and planets VI / / edited by Henrik Beuther [and three others] ; with the assistance of Renee Dotson ; with 250 collaborating authors |
| Pubbl/distr/stampa | Tucson, Arizona ; ; Houston, Texas : , : The University of Arizona Press : , : Lunar and Planetary Institute, , 2014 |
| Descrizione fisica | 1 online resource (945 p.) |
| Disciplina | 523.2/4 |
| Collana | University of Arizona Space Science Series |
| Soggetto topico |
Protostars
Planets - Origin Molecular clouds Stars - Formation |
| ISBN | 0-8165-9876-2 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | Part I. Molecular clouds and star formation -- Part II. Disk formation and evolution -- Part III. Planetary systems : search, formation and evolution -- Part IV. Astrophysical conditions for life. |
| Record Nr. | UNINA-9910809797803321 |
| Tucson, Arizona ; ; Houston, Texas : , : The University of Arizona Press : , : Lunar and Planetary Institute, , 2014 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Soggetto topico
-
Protostars
(7)
- Molecular clouds (3)
- Planets - Origin (3)
- Stars - Formation (3)
- Disks (Astrophysics) (1)