Please use this identifier to cite or link to this item: http://elar.urfu.ru/handle/10995/101746
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dc.contributor.authorBreen, S. L.en
dc.contributor.authorSobolev, A. M.en
dc.contributor.authorKaczmarek, J. F.en
dc.contributor.authorEllingsen, S. P.en
dc.contributor.authorMccarthy, T. P.en
dc.contributor.authorVoronkov, M. A.en
dc.date.accessioned2021-08-31T14:59:29Z-
dc.date.available2021-08-31T14:59:29Z-
dc.date.issued2019-
dc.identifier.citationDiscovery of Six New Class II Methanol Maser Transitions, Including the Unambiguous Detection of Three Torsionally Excited Lines toward G 358.931-0.030 / S. L. Breen, A. M. Sobolev, J. F. Kaczmarek, et al. — DOI 10.3847/2041-8213/ab191c // Astrophysical Journal Letters. — 2019. — Vol. 876. — Iss. 2. — L25.en
dc.identifier.issn20418205-
dc.identifier.otherFinal2
dc.identifier.otherAll Open Access, Green3
dc.identifier.otherhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85067272069&doi=10.3847%2f2041-8213%2fab191c&partnerID=40&md5=3ded56dd9de0cfbdd1ffec40d2a867c2
dc.identifier.otherhttps://iopscience.iop.org/article/10.3847/2041-8213/ab191c/pdfm
dc.identifier.urihttp://elar.urfu.ru/handle/10995/101746-
dc.description.abstractWe present the unambiguous discovery of six new class II methanol maser transitions, three of which are torsionally excited (vt= 1). The newly discovered 6.18 GHz 17-2→ 18-3E (vt= 1), 7.68 GHz 124→ 133A- (vt= 0), 7.83 GHz 124→ 133A+ (vt= 0), 20.9 GHz 101→ 112A+ (vt= 1), 44.9 GHz 20→ 31E (vt= 1), and 45.8 GHz 93→ 102E (vt= 0) methanol masers were detected toward G 358.931-0.030, where the known 6.68 GHz maser has recently been reported to be undergoing a period flaring. The detection of the vt= 1 torsionally excited lines corroborates one of the missing puzzle pieces in class II maser pumping, but the intensity of the detected emission provides an additional challenge, especially in the case of the very highly excited 6.18 GHz line. Together with the newly detected vt= 0 lines, these observations provide significant new information that can be utilized to improve class II methanol maser modeling. We additionally present detections of 6.68, 19.9, 23.1, and 37.7 GHz class II masers, as well as 36.2 and 44.1 GHz class I methanol masers, and provide upper limits for the 38.3 and 38.5 GHz class II lines. Near simultaneous Australia Telescope Compact Array observations confirm that all 10 of the class II methanol maser detections are co-spatial to ∼0.2 arcsec, which is within the uncertainty of the observations. We find significant levels of linearly polarized emission in the 6.18, 6.67, 7.68, 7.83, 20.9, 37.7, 44.9, and 45.8 GHz transitions, and low levels of circular polarization in the 6.68, 37.7, and 45.8 GHz transitions. © 2019. The American Astronomical Society. All rights reserved.en
dc.format.mimetypeapplication/pdfen
dc.language.isoenen
dc.publisherInstitute of Physics Publishingen
dc.rightsinfo:eu-repo/semantics/openAccessen
dc.sourceAstrophys. J. Lett.2
dc.sourceAstrophysical Journal Lettersen
dc.titleDiscovery of Six New Class II Methanol Maser Transitions, Including the Unambiguous Detection of Three Torsionally Excited Lines toward G 358.931-0.030en
dc.typeArticleen
dc.typeinfo:eu-repo/semantics/articleen
dc.typeinfo:eu-repo/semantics/publishedVersionen
dc.identifier.doi10.3847/2041-8213/ab191c-
dc.identifier.scopus85067272069-
local.contributor.employeeBreen, S.L., Sydney Institute for Astronomy, School of Physics, University of SydneyNSW 2006, Australia
local.contributor.employeeSobolev, A.M., Ural Federal University, 19 Mira street, Ekaterinburg, 620002, Russian Federation
local.contributor.employeeKaczmarek, J.F., CSIRO Astronomy and Space Science, Australia Telescope National Facility, Box 76, Epping, NSW 1710, Australia
local.contributor.employeeEllingsen, S.P., School of Natural Sciences, University of Tasmania, Private Bag 37, Hobart, TAS 7001, Australia
local.contributor.employeeMccarthy, T.P., School of Natural Sciences, University of Tasmania, Private Bag 37, Hobart, TAS 7001, Australia
local.contributor.employeeVoronkov, M.A., CSIRO Astronomy and Space Science, Australia Telescope National Facility, Box 76, Epping, NSW 1710, Australia
local.issue2-
local.volume876-
local.contributor.departmentSydney Institute for Astronomy, School of Physics, University of SydneyNSW 2006, Australia
local.contributor.departmentUral Federal University, 19 Mira street, Ekaterinburg, 620002, Russian Federation
local.contributor.departmentCSIRO Astronomy and Space Science, Australia Telescope National Facility, Box 76, Epping, NSW 1710, Australia
local.contributor.departmentSchool of Natural Sciences, University of Tasmania, Private Bag 37, Hobart, TAS 7001, Australia
local.identifier.pure9851140-
local.description.orderL25-
local.identifier.eid2-s2.0-85067272069-
Appears in Collections:Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC

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