REGIONS OF EXISTENCE OF THE CLASS II METHANOL MASERS. STATISTICAL FEATURES OF EMISSION IN CS (J = 2 - 1) LINE
PACS numbers: 95.85.Bh,97.10.Bt, 98.38.Er Purpose: The statistical features of emission in CS (J = 2 - 1) line, Class II methanol masers and IR sources in the regions associated with the Class II methanol masers are studied.Design/methodology/approach: The survey is performed at the CS (J = 2 - 1) l...
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Видавничий дім «Академперіодика»
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Radio physics and radio astronomy |
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rus |
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methanol masers CS dense cores star formation метанольные мазеры CS плотные ядра звездообразование метанольні мазери CS щільні ядра зіркоутворення |
| spellingShingle |
methanol masers CS dense cores star formation метанольные мазеры CS плотные ядра звездообразование метанольні мазери CS щільні ядра зіркоутворення Patoka, O. M. Shulga, V. M. Antyufeyev, O. V. Zubrin, S. Y. Myshenko, V. V. Korolev, A. M. Piddyachiy, V. I. REGIONS OF EXISTENCE OF THE CLASS II METHANOL MASERS. STATISTICAL FEATURES OF EMISSION IN CS (J = 2 - 1) LINE |
| topic_facet |
methanol masers CS dense cores star formation метанольные мазеры CS плотные ядра звездообразование метанольні мазери CS щільні ядра зіркоутворення |
| format |
Article |
| author |
Patoka, O. M. Shulga, V. M. Antyufeyev, O. V. Zubrin, S. Y. Myshenko, V. V. Korolev, A. M. Piddyachiy, V. I. |
| author_facet |
Patoka, O. M. Shulga, V. M. Antyufeyev, O. V. Zubrin, S. Y. Myshenko, V. V. Korolev, A. M. Piddyachiy, V. I. |
| author_sort |
Patoka, O. M. |
| title |
REGIONS OF EXISTENCE OF THE CLASS II METHANOL MASERS. STATISTICAL FEATURES OF EMISSION IN CS (J = 2 - 1) LINE |
| title_short |
REGIONS OF EXISTENCE OF THE CLASS II METHANOL MASERS. STATISTICAL FEATURES OF EMISSION IN CS (J = 2 - 1) LINE |
| title_full |
REGIONS OF EXISTENCE OF THE CLASS II METHANOL MASERS. STATISTICAL FEATURES OF EMISSION IN CS (J = 2 - 1) LINE |
| title_fullStr |
REGIONS OF EXISTENCE OF THE CLASS II METHANOL MASERS. STATISTICAL FEATURES OF EMISSION IN CS (J = 2 - 1) LINE |
| title_full_unstemmed |
REGIONS OF EXISTENCE OF THE CLASS II METHANOL MASERS. STATISTICAL FEATURES OF EMISSION IN CS (J = 2 - 1) LINE |
| title_sort |
regions of existence of the class ii methanol masers. statistical features of emission in cs (j = 2 - 1) line |
| title_alt |
ОБЛАСТИ СУЩЕСТВОВАНИЯ МЕТАНОЛЬНЫХ МАЗЕРОВ КЛАССА II. СТАТИСТИЧЕСКИЕ ОСОБЕННОСТИ ИЗЛУЧЕНИЯ В ЛИНИИ CS (J=2-1) ОБЛАСТІ ІСНУВАННЯ МЕТАНОЛЬНИХ МАЗЕРІВ КЛАСУ II. СТАТИСТИЧНІ ОСОБЛИВОСТІ ВИПРОМІНЮВАННЯ В ЛІНІЇ CS (J = 2 - 1)) |
| description |
PACS numbers: 95.85.Bh,97.10.Bt, 98.38.Er Purpose: The statistical features of emission in CS (J = 2 - 1) line, Class II methanol masers and IR sources in the regions associated with the Class II methanol masers are studied.Design/methodology/approach: The survey is performed at the CS (J = 2 - 1) line transition frequency, since this molecule is a solid gas tracer in which the conditions for the existence of methanol masers should arise.Findings: For the sources with which the Class II methanol masers are associated the dependences logLSC - logLbol , logLmeth - logLSC, and logLmeth - logLbol have been found. It is shown that on the average, the emission in the CS (J = 2 - 1) line toward Class II methanol masers is more often detected in those sources which are associated with the higher bolometric luminosity IR sources.Conclusions: The survey of the emission in the CS (J = 2 - 1) line toward Class II methanol masers for the northern celestial hemisphere was carried out. The statistical features of the emission in the CS (J = 2 - 1) line, Class II methanol masers and IR sources are shown.Key words: methanol masers, CS, dense cores, star formationManuscript submitted 26.07.2017Radio phys. radio astron. 2017, 22(3): 173-200REFERENCES 1. MENTEN, K., 1991. Methanol Masers and Submillimeter WavelengthWater Masers in Star-Forming Regions. In: Atoms, Ions and Molecules: New Results in Spectral Line Astrophysics, ASP Conference Series. vol. 16, pp. 119–136.2. BATRLA, W., MATTHEWS, H. E., MENTEN, K. M. and WALMSLEY, C. M., 1987. Detection of strong methanol masers towards galactic H II regions. Nature. vol. 326, no. 6108, pp. 49–51. DOI: https://doi.org/10.1038/326049a0 3. BRONFMAN, L., NYMAN, L.-A. and MAY, J., 1996. A CS (2-1) Survey of IRAS Point Sources With Color Characteristics of Ultra-Compact H II Regions. Astron. Astrophys. Suppl. Ser. vol. 115, pp. 1–81. 4. MOLINARI, S., BRAND, J., CESARONI, R. and PALLA, F., 1996. 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A Multi-Transition Molecular Line Study of Candidate Massive Young Stellar Objects Associated with Methanol Masers. Astron. Astrophys. vol. 468, no. 2, pp. 617–625. DOI: https://doi.org/10.1051/0004-6361:20077289 |
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Видавничий дім «Академперіодика» |
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oai:ri.kharkov.ua:article-12672020-06-09T10:34:29Z REGIONS OF EXISTENCE OF THE CLASS II METHANOL MASERS. STATISTICAL FEATURES OF EMISSION IN CS (J = 2 - 1) LINE ОБЛАСТИ СУЩЕСТВОВАНИЯ МЕТАНОЛЬНЫХ МАЗЕРОВ КЛАССА II. СТАТИСТИЧЕСКИЕ ОСОБЕННОСТИ ИЗЛУЧЕНИЯ В ЛИНИИ CS (J=2-1) ОБЛАСТІ ІСНУВАННЯ МЕТАНОЛЬНИХ МАЗЕРІВ КЛАСУ II. СТАТИСТИЧНІ ОСОБЛИВОСТІ ВИПРОМІНЮВАННЯ В ЛІНІЇ CS (J = 2 - 1)) Patoka, O. M. Shulga, V. M. Antyufeyev, O. V. Zubrin, S. Y. Myshenko, V. V. Korolev, A. M. Piddyachiy, V. I. methanol masers; CS; dense cores; star formation метанольные мазеры; CS; плотные ядра; звездообразование метанольні мазери; CS; щільні ядра; зіркоутворення PACS numbers: 95.85.Bh,97.10.Bt, 98.38.Er Purpose: The statistical features of emission in CS (J = 2 - 1) line, Class II methanol masers and IR sources in the regions associated with the Class II methanol masers are studied.Design/methodology/approach: The survey is performed at the CS (J = 2 - 1) line transition frequency, since this molecule is a solid gas tracer in which the conditions for the existence of methanol masers should arise.Findings: For the sources with which the Class II methanol masers are associated the dependences logLSC - logLbol , logLmeth - logLSC, and logLmeth - logLbol have been found. It is shown that on the average, the emission in the CS (J = 2 - 1) line toward Class II methanol masers is more often detected in those sources which are associated with the higher bolometric luminosity IR sources.Conclusions: The survey of the emission in the CS (J = 2 - 1) line toward Class II methanol masers for the northern celestial hemisphere was carried out. The statistical features of the emission in the CS (J = 2 - 1) line, Class II methanol masers and IR sources are shown.Key words: methanol masers, CS, dense cores, star formationManuscript submitted 26.07.2017Radio phys. radio astron. 2017, 22(3): 173-200REFERENCES 1. MENTEN, K., 1991. Methanol Masers and Submillimeter WavelengthWater Masers in Star-Forming Regions. In: Atoms, Ions and Molecules: New Results in Spectral Line Astrophysics, ASP Conference Series. vol. 16, pp. 119–136.2. BATRLA, W., MATTHEWS, H. E., MENTEN, K. M. and WALMSLEY, C. M., 1987. Detection of strong methanol masers towards galactic H II regions. 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DOI: https://doi.org/10.1051/0004-6361:20077289 УДК 524.5 Предмет и цель работы: Исследуются статистические особенности излучения в линии CS (J = 2 - 1), метанольных мазеров класса IІ и инфракрасных источников в областях, ассоциируемых с метанольными мазерами класса II.Методы и методология: Обзор выполнен на частоте излучения линии молекулы CS (J = 2 - 1), которая является индикатором областей плотного газа, где должны возникать условия для существования метанольных мазеров.Результаты: Найден вид зависимостей logLCS - logLbol, logLmeth - logLCS и logLmeth - logLbol для источников, с которыми ассоциируются метанольные мазеры класса II. Показано, что в среднем излучение в линии CS (J = 2 - 1) в направлении метанольных мазеров класса II чаще регистрируется в тех источниках, которые ассоциируются с инфракрасными источниками с большей болометрической светимостью.Заключение: Проведен обзор излучения в линии CS (J = 2 - 1) в направлении на области существования метанольных мазеров для северной небесной полусферы. Показаны статистические особенности излучения в линии CS (J = 2 - 1), метанольных мазеров класса IІ и инфракрасных источников.Ключевые слова: метанольные мазеры, CS, плотные ядра, звездообразованиеСтатья поступила в редакцию 26.07.2017Radio phys. radio astron. 2017, 22(3): 173-200 СПИСОК ЛИТЕРАТУРЫ1. Menten K. Methanol Masers and Submillimeter Wavelength Water Masers in Star-Forming Regions // Proc. of the Atoms, ions and molecules: New results in spectral line astrophysics, ASP Conference Series. – San Francisco, USA. – 1991. – P. 119–136.2. Batrla W., Matthews H. E., Menten K. M., and Walmsley C. M. 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DOI: 10.1051/0004-6361:20077289 УДК 524.5 Предмет і мета роботи: Досліджуються статистичні особливості випромінювання в лінії CS (J = 2 - 1), метанольних мазерів класу IІ і інфрачервоних джерел в областях, що асоціюються з метанольними мазерами класу II.Методи та методологія: Огляд виконано на частоті випромінювання лінії молекули CS (J = 2 - 1), яка є індикатором областей щільного газу, де мають виникати умови для існування метанольних мазерів.Результати: Знайдено вид залежностей logLCS - logLbol, logLmeth - logLCS и logLmeth - logLbol для джерел, з якими асоціюються метанольні мазери класу II. Показано, що в середньому випромінювання в лінії CS (J = 2 - 1) в напрямку метанольних мазерів класу II частіше реєструється в тих джерелах, які асоціюються з інфрачервоними джерелами з більшою болометричною світимістю.Висновки: Виконано огляд випромінювання в лінії CS (J = 2 - 1) у напрямку на області існування метанольних мазерів для північної небесної півсфери. 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DOI: 10.1051/0004-6361:20077289 Видавничий дім «Академперіодика» 2017-09-26 Article Article application/pdf http://rpra-journal.org.ua/index.php/ra/article/view/1267 10.15407/rpra22.03.173 РАДИОФИЗИКА И РАДИОАСТРОНОМИЯ; Vol 22, No 3 (2017); 173 RADIO PHYSICS AND RADIO ASTRONOMY; Vol 22, No 3 (2017); 173 РАДІОФІЗИКА І РАДІОАСТРОНОМІЯ; Vol 22, No 3 (2017); 173 2415-7007 1027-9636 10.15407/rpra22.03 rus http://rpra-journal.org.ua/index.php/ra/article/view/1267/pdf Copyright (c) 2017 RADIO PHYSICS AND RADIO ASTRONOMY |