Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Sobolev, Andrej"'
Autor:
Vorster, Jakobus M., Chibueze, James O., Hirota, Tomoya, MacLeod, Gordon C., van der Walt, Johan D., Vorobyov, Eduard I., Sobolev, Andrej M., Juvela, Mika
Publikováno v:
A&A 691, A157 (2024)
HMYSOs gain most of their mass in short bursts of accretion. Maser emission is an invaluable tool in discovering and probing accretion bursts. We observed the 22 GHz water maser response induced by the accretion burst in NGC6334I-MM1B and identified
Externí odkaz:
http://arxiv.org/abs/2408.15700
Autor:
Guadarrama, Rodrigo, Vorobyov, Eduard, Rab, Christian, Güdel, Manuel, Garatti, Alessio Caratti o, Sobolev, Andrej
The effect of accretion bursts on massive young stellar objects (MYSOs) represents a new research field in the study of young stars and their environment. We aim to investigate the impact of an accretion burst on massive disks with different types of
Externí odkaz:
http://arxiv.org/abs/2312.07184
Autor:
Baan, Wiillem A., AN, Tao, Henkel, Christian, Imai, Hiroshi, Kostenko, Vladimir, Sobolev, Andrej
H$_2$O MegaMaser emission may arise from thin gas discs surrounding the massive nuclei of galaxies such as NGC\,4258, but the physical conditions responsible for the amplified emission are unclear. A detailed view of these regions is possible using t
Externí odkaz:
http://arxiv.org/abs/2302.14738
Autor:
Salii, Svetlana V., Zinchenko, Igor I., Liu, Sheng-Yuan, Sobolev, Andrej M., Aberfelds, Artis, Su, Yu-Nung
We present results of the investigations of the properties of the methanol $J_1 - J_0$ A$^{-+}$ line series motivated by the recent serendipitous detection of the maser emission in the $14_1 - 14_0$ A$^{-+}$ line at 349~GHz in S255IR-SMA1 soon after
Externí odkaz:
http://arxiv.org/abs/2203.09150
Autor:
Yang, Wenjin, Xu, Ye, Choi, Yoon Kyung, Ellingsen, Simon P., Sobolev, Andrej M., Chen, Xi, Li, Jingjing, Lu, Dengrong
We report a simultaneous 44 and 95 GHz class I methanol maser survey toward 144 sources from the 95 GHz class I methanol maser catalog. The observations were made with the three telescopes of the Korean very long baseline interferometry network opera
Externí odkaz:
http://arxiv.org/abs/2005.00392
Autor:
Burns, Ross A., Handa, Toshihiro, Omodaka, Toshihiro, Sobolev, Andrej M., Kirsanova, Maria S., Nagayama, Takumi, Chibueze, James O., Kohno, Mikito, Nakano, Makoto, Sunada, Kazuyoshi, Ladeyschikov, Dmitry A.
Star formation is thought to be driven by two groups of mechanisms; spontaneous collapse and triggered collapse. Triggered star formation mechanisms further diverge into cloud-cloud collision (CCC), "collect and collapse" (C\&C) and shock induced col
Externí odkaz:
http://arxiv.org/abs/1908.00954
We have used the Australia Telescope Compact Array (ATCA) to undertake the first high angular resolution observations of 37.7-GHz ($7_{-2} - 8_{-1}E$) methanol masers towards a sample of eleven high-mass star formation regions which host strong 6.7-G
Externí odkaz:
http://arxiv.org/abs/1808.02143
We present estimates of brightness temperature for 5 galactic masers in star-forming regions detected at space baselines. Very compact features with angular sizes of about 23-60 micro arcsec were detected in these regions with corresponding linear si
Externí odkaz:
http://arxiv.org/abs/1802.05120
Autor:
Baan, Willem, Alakoz, Alexey, An, Tao, Ellingsen, Simon, Henkel, Christian, Imai, Hiroshi, Kostenko, Vladimir, Litovchenko, Ivan, Moran, James, Sobolev, Andrej, Tolmachev, Alexander
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, NGC3079 and N
Externí odkaz:
http://arxiv.org/abs/1801.08796
We have used the Australia Telescope Compact Array (ATCA) to search for a number of centimetre wavelength methanol transitions which are predicted to show weak maser emission towards star formation regions. Sensitive, high spatial and spectral resolu
Externí odkaz:
http://arxiv.org/abs/1610.03109