Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Durjasz, M."'
Autor:
Bartkiewicz, A., Sanna, A., Szymczak, M., Moscadelli, L., van Langevelde, H. J., Wolak, P., Kobak, A., Durjasz, M.
Publikováno v:
A&A 686, A275 (2024)
Methanol masers at 6.7~GHz are well-known signposts of high-mass star-forming regions. [...] We aim to understand the origin of the ring-like structures outlined by methanol maser emission in a number of sources. This emission could be, a priori, spa
Externí odkaz:
http://arxiv.org/abs/2404.07333
Autor:
Szymczak, M., Durjasz, M., Goedhart, S., Wolak, P., Bartkiewicz, A., Garatti, A. Caratti o, Kobak, A., Massi, F.
Aims: We report the discovery and analysis of a periodic methanol maser in the massive protostar IRAS 20216+4104. Methods: To obtain the light curve, we used the 6.7 GHz methanol maser spectra collected between 2000-2003 and 2009-2023 with the Harteb
Externí odkaz:
http://arxiv.org/abs/2312.01978
Autor:
Aberfelds, A, Bartkiewicz, A, Szymczak, M, Šteinbergs, J, Surcis, G, Kobak, A, Durjasz, M, Shmeld, I
Publikováno v:
MNRAS, Volume 524, Issue 1, September 2023, Pages 599-618
{The variability study of 6.7\,GHz methanol masers has become a useful way to improve our understanding of the physical conditions in high-mass star-forming regions.} {Based on the single-dish monitoring using the Irbene telescopes, we selected three
Externí odkaz:
http://arxiv.org/abs/2307.03663
Autor:
Burns, R. A., Uno, Y., Sakai, N., Blanchard, J., Rosli, Z., Orosz, G., Yonekura, Y., Tanabe, Y., Sugiyama, K., Hirota, T., Kim, Kee-Tae, Aberfelds, A., Volvach, A. E., Bartkiewicz, A., Garatti, A. Caratti o, Sobolev, A. M., Stecklum, B., Brogan, C., Phillips, C., Ladeyschikov, D. A., Johnstone, D., Surcis, G., MacLeod, G. C., Linz, H., Chibueze, J. O., Brand, J., Eislöffel, J., Hyland, L., Uscanga, L., Olech, M., Durjasz, M., Bayandina, O., Breen, S., Ellingsen, S. P., Heever, S. P. van den, Hunter, T. R., Chen, X.
High-mass protostars (M$_{\star} >$ 8 M$_{\odot}$) are thought to gain the majority of their mass via short, intense bursts of growth. This episodic accretion is thought to be facilitated by gravitationally unstable and subsequently inhomogeneous acc
Externí odkaz:
http://arxiv.org/abs/2304.14740
Autor:
Kobak, A., Bartkiewicz, A., Szymczak, M., Olech, M., Durjasz, M., Wolak, P., Chibueze, J. O., Hirota, T., Eislöffel, J., Stecklum, B., Sobolev, A., Bayandina, O., Orosz, G., Burns, R. A., Kim, Kee-Tae, Heever, S. P. van den
Publikováno v:
A&A 671, A135 (2023)
Recent studies have shown that 6.7 GHz methanol maser flares can be a powerful tool for verifying the mechanisms of maser production and even the specific signatures of accretion rate changes in the early stages of high-mass star formation. We charac
Externí odkaz:
http://arxiv.org/abs/2302.02723
Publikováno v:
A&A 663, A123 (2022)
Context: Class II methanol masers at 6.7 GHz originate close to high-mass young stellar objects (HMYSOs). Their high sensitivity to local condition variations makes them a useful marker of the activity of the emerging massive stars. Aims: We aim to c
Externí odkaz:
http://arxiv.org/abs/2205.08759
Publikováno v:
A&A 648, A118 (2021)
Context. Class II methanol masers at 6.7 and 12.2 GHz occur close to high-mass young stellar objects (HMYSOs). When they are observed simultaneously, such studies may contribute to refining the characterisation of local physical conditions. Aims. We
Externí odkaz:
http://arxiv.org/abs/2103.13953
Publikováno v:
A&A 642, A145 (2020)
The excited states of OH masers detected in the environment of high-mass young stellar objects (HMYSOs) are important for improving our understanding of the physical conditions of these objects and also provide information about their magnetic fields
Externí odkaz:
http://arxiv.org/abs/2009.06291
G111.256-0.770 is a high-mass young stellar object associated with a weak 6.7 GHz methanol maser showing strong variability. We present results of a multi-epoch monitoring program of the target, conducted with the Torun 32 m telescope for more than a
Externí odkaz:
http://arxiv.org/abs/1902.06712
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