H2O MegaMasers: RadioAstron success story

Willem Baan; Alexey Alakoz; Tao An; Simon Ellingsen; Christian Henkel; Hiroshi Imai; Vladimir Kostenko; Ivan Litovchenko; James Moran; Andrej Sobolev; Alexander Tolmachev

doi:10.1017/S1743921317010869

H₂O MegaMasers: RadioAstron success story

Willem Baan, Alexey Alakoz, Tao An, Simon Ellingsen, Christian Henkel, Hiroshi Imai, Vladimir Kostenko, Ivan Litovchenko, James Moran, Andrej Sobolev, Alexander Tolmachev

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The RadioAstron space-VLBI mission has successfully detected extragalactic H2O MegaMaser emission regions at very long Earth to space baselines ranging between 1.4 and 26.7 Earth Diameters (ED). The preliminary results for two galaxies, NGC 3079 and NGC 4258, at baselines longer than one ED indicate masering environments and excitation conditions in these galaxies that are distinctly different. Further observations of NGC 4258 at even longer baselines are expected to reveal more of the physics of individual emission regions.

Original language	English
Pages (from-to)	422-425
Number of pages	4
Journal	Proceedings of the International Astronomical Union
Volume	13
Issue number	S336
DOIs	https://doi.org/10.1017/S1743921317010869
Publication status	Published - 2017
Externally published	Yes

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title = "H2O MegaMasers: RadioAstron success story",

abstract = "The RadioAstron space-VLBI mission has successfully detected extragalactic H2O MegaMaser emission regions at very long Earth to space baselines ranging between 1.4 and 26.7 Earth Diameters (ED). The preliminary results for two galaxies, NGC 3079 and NGC 4258, at baselines longer than one ED indicate masering environments and excitation conditions in these galaxies that are distinctly different. Further observations of NGC 4258 at even longer baselines are expected to reveal more of the physics of individual emission regions.",

keywords = "galaxies: ISM, galaxies: nuclei, masers, radio lines: ISM",

author = "Willem Baan and Alexey Alakoz and Tao An and Simon Ellingsen and Christian Henkel and Hiroshi Imai and Vladimir Kostenko and Ivan Litovchenko and James Moran and Andrej Sobolev and Alexander Tolmachev",

note = "Publisher Copyright: {\textcopyright} International Astronomical Union 2018.",

year = "2017",

doi = "10.1017/S1743921317010869",

language = "English",

volume = "13",

pages = "422--425",

journal = "Proceedings of the International Astronomical Union",

issn = "1743-9213",

publisher = "Cambridge University Press",

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}

TY - JOUR

T1 - H2O MegaMasers

T2 - RadioAstron success story

AU - Baan, Willem

AU - Alakoz, Alexey

AU - An, Tao

AU - Ellingsen, Simon

AU - Henkel, Christian

AU - Imai, Hiroshi

AU - Kostenko, Vladimir

AU - Litovchenko, Ivan

AU - Moran, James

AU - Sobolev, Andrej

AU - Tolmachev, Alexander

N1 - Publisher Copyright: © International Astronomical Union 2018.

PY - 2017

Y1 - 2017

N2 - The RadioAstron space-VLBI mission has successfully detected extragalactic H2O MegaMaser emission regions at very long Earth to space baselines ranging between 1.4 and 26.7 Earth Diameters (ED). The preliminary results for two galaxies, NGC 3079 and NGC 4258, at baselines longer than one ED indicate masering environments and excitation conditions in these galaxies that are distinctly different. Further observations of NGC 4258 at even longer baselines are expected to reveal more of the physics of individual emission regions.

AB - The RadioAstron space-VLBI mission has successfully detected extragalactic H2O MegaMaser emission regions at very long Earth to space baselines ranging between 1.4 and 26.7 Earth Diameters (ED). The preliminary results for two galaxies, NGC 3079 and NGC 4258, at baselines longer than one ED indicate masering environments and excitation conditions in these galaxies that are distinctly different. Further observations of NGC 4258 at even longer baselines are expected to reveal more of the physics of individual emission regions.

KW - galaxies: ISM

KW - galaxies: nuclei

KW - masers

KW - radio lines: ISM

UR - http://www.scopus.com/inward/record.url?scp=85060108520&partnerID=8YFLogxK

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DO - 10.1017/S1743921317010869

M3 - Article

AN - SCOPUS:85060108520

SN - 1743-9213

VL - 13

SP - 422

EP - 425

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

IS - S336

ER -

H₂O MegaMasers: RadioAstron success story

Abstract

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