Theory and Observation of Active B-type Stars
Active B-type stars are defined by their characteristic emission formed in a dense environment. Among them are the classical Be stars, which are surrounded by ionized gaseous disks, and B[e] stars, whose disks are so dense that even molecules and dust can form within them. The variability of active...
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| Γλώσσα: | Αγγλικά |
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MDPI - Multidisciplinary Digital Publishing Institute
2023
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| Διαθέσιμο Online: | ONIX_20231130_9783036591230_301 |
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| description | Active B-type stars are defined by their characteristic emission formed in a dense environment. Among them are the classical Be stars, which are surrounded by ionized gaseous disks, and B[e] stars, whose disks are so dense that even molecules and dust can form within them. The variability of active B-type stars seen on various time and spatial scales is often connected to the formation and dissipation of these disks. Although the possible roles of radiation, rotation, pulsation, and binarity in pulling material off the stars have been explored in detail in the past few decades, the relevant physical processes involved in the formation of sustainable disks and their dynamical evolution are still unclear and a matter of debate.This Special Issue intends to provide a comprehensive update on the state of knowledge in the field of active B-type stars. It combines reviews and selected contributions on recent groundbreaking advancements in the comprehension of these peculiar objects from both a theoretical and an observational perspective. These new insights form the basis for exploring complex physical phenomena to verify the different scenarios proposed for the evolution and variability of stars and their circumstellar environment of the diverse classes of active B-type stars. |
| format | Online |
| id | doab-20.500.12854ir-128849 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | MDPI - Multidisciplinary Digital Publishing Institute |
| publisherStr | MDPI - Multidisciplinary Digital Publishing Institute |
| record_format | ojs |
| spelling | doab-20.500.12854ir-1288492024-03-28T03:32:49Z Theory and Observation of Active B-type Stars Cidale, Lydia Sonia Kraus, Michaela Arias, María Laura stars: individual: α Eri, α Col, ω Car, η Cen archive stars: emission-line, Be stars: early-type (stars:) circumstellar matter stars: peculiar (except chemically peculiar) Be stars early-type emission stars circumstellar disks early-type variable stars open star clusters Gaia Techniques: spectrophotometric Stars: activity Stars: emission-line, B, Bn, Be, B[e], Bm Stars: rotation Stars: evolution Stars: chemically peculiar Stars: magnetic field stars flares stars activity stars binaries spectroscopic early-type stars stars individual HD 36030 circumstellar matter: jets and outflows stars: individual Z CMa stars: emission-line Be stars: massive stars: mass-loss hydrodynamics analytical methods numerical methods methods: statistical methods: numerical binaries: eclipsing stars: oscillations (including pulsations) stars: peculiar stars: individual: MWC 645 circumstellar matter binaries: general techniques: spectroscopic stars: supergiants stars: winds outflows massive stars mass-loss stars star evolution emission line Be circumstellar matter supergiant stars star variables S Doradus infrared galaxies: individual WLM NGC 55 NGC 247 NGC 253 NGC 300 NGC 3109 NGC 7793 stars: symbiotic, binaries stars: infrared stars: individual: MX Pup, π Aqr thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general thema EDItEUR::P Mathematics and Science::PH Physics thema EDItEUR::P Mathematics and Science::PG Astronomy, space and time Active B-type stars are defined by their characteristic emission formed in a dense environment. Among them are the classical Be stars, which are surrounded by ionized gaseous disks, and B[e] stars, whose disks are so dense that even molecules and dust can form within them. The variability of active B-type stars seen on various time and spatial scales is often connected to the formation and dissipation of these disks. Although the possible roles of radiation, rotation, pulsation, and binarity in pulling material off the stars have been explored in detail in the past few decades, the relevant physical processes involved in the formation of sustainable disks and their dynamical evolution are still unclear and a matter of debate.This Special Issue intends to provide a comprehensive update on the state of knowledge in the field of active B-type stars. It combines reviews and selected contributions on recent groundbreaking advancements in the comprehension of these peculiar objects from both a theoretical and an observational perspective. These new insights form the basis for exploring complex physical phenomena to verify the different scenarios proposed for the evolution and variability of stars and their circumstellar environment of the diverse classes of active B-type stars. 2023-11-30T20:58:24Z 2023-11-30T20:58:24Z 2023 book ONIX_20231130_9783036591230_301 9783036591230 9783036591223 https://directory.doabooks.org/handle/20.500.12854/128849 eng application/octet-stream Attribution 4.0 International https://mdpi.com/books/pdfview/book/8319 https://mdpi.com/books/pdfview/book/8319 MDPI - Multidisciplinary Digital Publishing Institute 10.3390/books978-3-0365-9122-3 10.3390/books978-3-0365-9122-3 46cabcaa-dd94-4bfe-87b4-55023c1b36d0 9783036591230 9783036591223 390 Basel open access |
| spellingShingle | stars: individual: α Eri, α Col, ω Car, η Cen archive stars: emission-line, Be stars: early-type (stars:) circumstellar matter stars: peculiar (except chemically peculiar) Be stars early-type emission stars circumstellar disks early-type variable stars open star clusters Gaia Techniques: spectrophotometric Stars: activity Stars: emission-line, B, Bn, Be, B[e], Bm Stars: rotation Stars: evolution Stars: chemically peculiar Stars: magnetic field stars flares stars activity stars binaries spectroscopic early-type stars stars individual HD 36030 circumstellar matter: jets and outflows stars: individual Z CMa stars: emission-line Be stars: massive stars: mass-loss hydrodynamics analytical methods numerical methods methods: statistical methods: numerical binaries: eclipsing stars: oscillations (including pulsations) stars: peculiar stars: individual: MWC 645 circumstellar matter binaries: general techniques: spectroscopic stars: supergiants stars: winds outflows massive stars mass-loss stars star evolution emission line Be circumstellar matter supergiant stars star variables S Doradus infrared galaxies: individual WLM NGC 55 NGC 247 NGC 253 NGC 300 NGC 3109 NGC 7793 stars: symbiotic, binaries stars: infrared stars: individual: MX Pup, π Aqr thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general thema EDItEUR::P Mathematics and Science::PH Physics thema EDItEUR::P Mathematics and Science::PG Astronomy, space and time Theory and Observation of Active B-type Stars |
| title | Theory and Observation of Active B-type Stars |
| title_full | Theory and Observation of Active B-type Stars |
| title_fullStr | Theory and Observation of Active B-type Stars |
| title_full_unstemmed | Theory and Observation of Active B-type Stars |
| title_short | Theory and Observation of Active B-type Stars |
| title_sort | theory and observation of active b type stars |
| topic | stars: individual: α Eri, α Col, ω Car, η Cen archive stars: emission-line, Be stars: early-type (stars:) circumstellar matter stars: peculiar (except chemically peculiar) Be stars early-type emission stars circumstellar disks early-type variable stars open star clusters Gaia Techniques: spectrophotometric Stars: activity Stars: emission-line, B, Bn, Be, B[e], Bm Stars: rotation Stars: evolution Stars: chemically peculiar Stars: magnetic field stars flares stars activity stars binaries spectroscopic early-type stars stars individual HD 36030 circumstellar matter: jets and outflows stars: individual Z CMa stars: emission-line Be stars: massive stars: mass-loss hydrodynamics analytical methods numerical methods methods: statistical methods: numerical binaries: eclipsing stars: oscillations (including pulsations) stars: peculiar stars: individual: MWC 645 circumstellar matter binaries: general techniques: spectroscopic stars: supergiants stars: winds outflows massive stars mass-loss stars star evolution emission line Be circumstellar matter supergiant stars star variables S Doradus infrared galaxies: individual WLM NGC 55 NGC 247 NGC 253 NGC 300 NGC 3109 NGC 7793 stars: symbiotic, binaries stars: infrared stars: individual: MX Pup, π Aqr thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general thema EDItEUR::P Mathematics and Science::PH Physics thema EDItEUR::P Mathematics and Science::PG Astronomy, space and time |
| topic_facet | stars: individual: α Eri, α Col, ω Car, η Cen archive stars: emission-line, Be stars: early-type (stars:) circumstellar matter stars: peculiar (except chemically peculiar) Be stars early-type emission stars circumstellar disks early-type variable stars open star clusters Gaia Techniques: spectrophotometric Stars: activity Stars: emission-line, B, Bn, Be, B[e], Bm Stars: rotation Stars: evolution Stars: chemically peculiar Stars: magnetic field stars flares stars activity stars binaries spectroscopic early-type stars stars individual HD 36030 circumstellar matter: jets and outflows stars: individual Z CMa stars: emission-line Be stars: massive stars: mass-loss hydrodynamics analytical methods numerical methods methods: statistical methods: numerical binaries: eclipsing stars: oscillations (including pulsations) stars: peculiar stars: individual: MWC 645 circumstellar matter binaries: general techniques: spectroscopic stars: supergiants stars: winds outflows massive stars mass-loss stars star evolution emission line Be circumstellar matter supergiant stars star variables S Doradus infrared galaxies: individual WLM NGC 55 NGC 247 NGC 253 NGC 300 NGC 3109 NGC 7793 stars: symbiotic, binaries stars: infrared stars: individual: MX Pup, π Aqr thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general thema EDItEUR::P Mathematics and Science::PH Physics thema EDItEUR::P Mathematics and Science::PG Astronomy, space and time |
| url | ONIX_20231130_9783036591230_301 |