Zobrazeno 1 - 10
of 123 224
pro vyhledávání: '"A. Maser"'
Spin masers with optical detection and artificial feedback are widely used in fundamental and practical applications. However, a full picture of the maser dynamics is still absent. By solving the feedback driven Bloch equations, we simulated the dyna
Externí odkaz:
http://arxiv.org/abs/2411.13930
Autor:
Cala, Roldán A., Gómez, José F., Miranda, Luis F., Imai, Hiroshi, de Gregorio-Monsalvo, Itziar, Mitrea, Florin Placinta, Osorio, Mayra, Anglada, Guillem
Maser emission of SiO, H$_2$O and, OH is widespread in Asymptotic Giant Branch (AGB) stars with oxygen(O)-rich envelopes. This emission quickly disappear during the post-AGB phase and is extremely rare in planetary nebulae (PN). So far, only eight PN
Externí odkaz:
http://arxiv.org/abs/2410.22785
Autor:
Xia, Tian-Ye, Shen, Juntai, Li, Zhi, Feng, Huaijin, Sjouwerman, Loránt O., Pihlström, Ylva M., Lewis, Megan O., Stroh, Michael C.
We introduce a novel method that utilizes the longitude-velocity (l-v) envelope to constrain the Milky Way (MW) bar potential. Previous work (Habing 2016) used the l-v diagram to explain the distribution of the observed high-velocity stars. We succes
Externí odkaz:
http://arxiv.org/abs/2410.05922
Relativistic plasmas in strong electromagnetic fields exhibit distinct properties compared to classical plasmas. In astrophysical environments, such as neutron stars, white dwarfs, AGNs, and shocks, relativistic plasmas are pervasive and are expected
Externí odkaz:
http://arxiv.org/abs/2409.18955
Autor:
Malcolm Gray
Masers are observed at a range of scales - from comets, through star-forming clouds, to galactic nuclei - and have many astrophysical applications, for example measuring cosmological distances. Written for postgraduate students and professional resea
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
Abridged. The LINER galaxy TXS2226-184 is known to host a very luminous 22 GHz water maser, called a gigamaser at the time of its discovery. To date, the nature of this maser is still being debated, in particular, whether it is associated with a nucl
Externí odkaz:
http://arxiv.org/abs/2407.13373
Autor:
Humire, Pedro K., Ortiz-León, Gisela N., Hernández-Gómez, Antonio, Yang, Wenjin, Henkel, Christian, Martín, Sergio
Publikováno v:
A&A 688, L1 (2024)
Class\,I methanol masers provide sensitive information about the shocked environment around star-forming regions. Among the brightest Class~I methanol masers, we have those in the $J_{-1}\rightarrow(J-$ 1)$_{0}-E$ line series, currently reported for
Externí odkaz:
http://arxiv.org/abs/2407.01497
Pair interaction potentials between atoms in a crystal are in general non-monotonic in distance, with a local minimum whose position gives the lattice constant of the crystal. A temporal analogue of this idea of crystal formation is still pending des
Externí odkaz:
http://arxiv.org/abs/2406.15017
Publikováno v:
Frontiers in Astronomy & Space Sciences. 2024, p1-11. 11p.
