Zobrazeno 1 - 10
of 67
pro vyhledávání: '"I. E. Val'tts"'
Publikováno v:
Astronomy Reports. 65:552-568
The observational data of an H2О maser at a frequency of 22.2280 GHz in the dark reflection nebula NGC 2071 in the direction of the infrared object IRS 1 at the target coordinates RA(2000) = $${{05}^{{\text{h}}}}{{47}^{{\text{m}}}}04_{.}^{{\text{s}}
Autor:
O. S. Bayandina, R. A. Burns, S. E. Kurtz, L. Moscadelli, A. M. Sobolev, B. Stecklum, I. E. Val’tts
Publikováno v:
Astronomy & Astrophysics. 673:A60
Context. The G25.65+1.04 source is one of the few known ‘super-flare’ water masers in the Milky Way, but in contrast to other super-flare sources, it remains the least studied. In fact, even the nature of the source driving the water maser is sti
Autor:
O. S. Bayandina, C. L. Brogan, R. A. Burns, A. Caratti o Garatti, J. O. Chibueze, S. P. van den Heever, S. E. Kurtz, G. C. MacLeod, L. Moscadelli, A. M. Sobolev, K. Sugiyama, I. E. Val’tts, Y. Yonekura
Publikováno v:
Astronomy and Astrophysics
Context. The massive young stellar object (MYSO) G358.93-0.03-MM1 showed an extraordinary near-infrared- to (sub-)millimetredark and far-infrared-loud accretion burst, which is closely associated with flares of several class II methanol maser transit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed29f289f66cd94fa1d166cd566760b2
http://arxiv.org/abs/2206.12119
http://arxiv.org/abs/2206.12119
Autor:
O. S. Bayandina, C. L. Brogan, R. A. Burns, X. Chen, T. R. Hunter, S. E. Kurtz, G. C. MacLeod, A. M. Sobolev, K. Sugiyama, I. E. Val’tts, Y. Yonekura
Publikováno v:
Astron. J.
Astronomical Journal
Astronomical Journal
We present the most complete to date interferometric study of the centimeter-wavelength methanol masers detected in G358.93-0.03 at the burst and post-burst epochs. A unique, near-IR/(sub)millimeter-dark and far-IR-loud massive young stellar object a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::053858f95c7470ec100c30f8f1436064
http://arxiv.org/abs/2201.12075
http://arxiv.org/abs/2201.12075
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 499:3961-3975
We present a study of 18 cm OH maser emission toward 20 high-mass young stellar object outflow candidates (Extended Green Objects, EGOs) identified from the Spitzer Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE). All four OH groun
Autor:
Ross A. Burns, A. V. Alakoz, I. E. Val’tts, N. N. Shakhvorostova, Stan Kurtz, O. S. Bayandina
Publikováno v:
Advances in Space Research. 65:763-771
Water masers are well-known to be variable on a variety of time scales, but only three Galactic H2O masers are known to flare to the level of 105–106 Jy ( T B ∼ 10 17 K): Orion KL, W49N, and the recently discovered G25.65+1.05. Recently detected
Autor:
A. I. Dmitrotsa, G. M. Rudnitskii, I. E. Val’tts, O. S. Bayandina, L. N. Volvach, N. T. Ashimbaeva, A. E. Volvach, N. N. Shakhvorostova, A. V. Alakoz
Publikováno v:
Astronomy Reports. 62:584-608
Results of systematic observations of a sample of bright H2O maser sources with fluxes, on average, exceeding 200 Jy in their main spectral feature during April–September 2017 (G25.65+1.05, G25.825−0.178, G27.184−0.082, G34.403+0.233, G35.20−
Publikováno v:
The Astrophysical Journal Supplement Series. 256:7
Publikováno v:
Astronomy Reports. 61:487-502
We report H$_2$O maser line observations of the bright-rimmed globule IC 1396 N using a ground-space interferometer with the 10-m RadioAstron radio telescope as the space-based element. The source was not detected on projected baselines >2.3 Earth di
Autor:
I. E. Val'tts, Willem A. Baan, A. V. Pogodin, O. S. Bayandina, Norbert Bartel, A. Z. Vorobyov, V. A. Molodtsov, G. M. Rudnitski, A. P. Lobanov, A. G. Rudnitski, David L. Jauncey, N. S. Kardashev, Hiroshi Imai, E. N. Filippova, Philip G. Edwards, Mikhail M. Lisakov, V. A. Soglasnov, Michael D. Johnson, A. V. Alakoz, V. E. Babyshkin, A. E. Shirshakov, José L. Gómez, Carl R. Gwinn, A. M. Sobolev, Tuomas Savolainen, P. A. Voitsik, G. Giovannini, B. S. Novikov, M. E. Churikova, M. V. Popov, Stan Kurtz, T. V. Smirnova, Kirill Sokolovsky, A. S. Andrianov, V. V. Khartov, M. I. Artyukhov, A. S. Privesenzev, V. I. Shishov, Yuri Y. Kovalev
Publikováno v:
SOLAR SYSTEM RESEARCH. 51(7):535-554
The RadioAstron ground-space interferometer provides the highest angular resolution achieved now in astronomy. The detection of interferometric fringes from quasars with this angular resolution on baselines of 100–200 thousand km suggests the brigh