Back to Search
Start Over
Evolution of Maser Emission in the Region of Active Star Formation G43.8–0.1. I. OH Maser Emission at 18 cm
- Source :
- Astronomicheskii Zhurnal / Astronomy Reports, Astronomicheskii Zhurnal / Astronomy Reports, MAIK Nauka/Interperiodica, 2019, 63 (7), pp.565-570. ⟨10.1134/S1063772919070047⟩
- Publication Year :
- 2019
- Publisher :
- HAL CCSD, 2019.
-
Abstract
- The results of observations of OH maser emission in the star-forming region G43.8–0.1 are presented. In spite of strong flux-density variations in the main lines at 1665 and 1667 MHz, the radial velocities of the spectral features varied only slightly. The main spectral features are identified with maser spots in previously published maps for epochs 1993 and 2001. It is suggested that the regions of OH maser emission may be elongated, nonuniform structures with weak radial velocity gradients (larger-scale analogs of water-maser filaments). The line-of-sight magnetic fields are determined for two Zeeman pairs, which remained essentially constant over at least 17 years.
- Subjects :
- Physics
Zeeman effect
010308 nuclear & particles physics
Astronomy and Astrophysics
Astrophysics
01 natural sciences
law.invention
Magnetic field
Radial velocity
symbols.namesake
Space and Planetary Science
law
0103 physical sciences
symbols
Astrophysics::Solar and Stellar Astrophysics
Maser
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
ComputingMilieux_MISCELLANEOUS
Active star
Subjects
Details
- Language :
- English
- ISSN :
- 10637729 and 15626881
- Database :
- OpenAIRE
- Journal :
- Astronomicheskii Zhurnal / Astronomy Reports, Astronomicheskii Zhurnal / Astronomy Reports, MAIK Nauka/Interperiodica, 2019, 63 (7), pp.565-570. ⟨10.1134/S1063772919070047⟩
- Accession number :
- edsair.doi.dedup.....693cf0ee1d1bdeddda24c0bf12b39393
- Full Text :
- https://doi.org/10.1134/S1063772919070047⟩