| Title (english) | Video of mosaiced Faraday cube of LoTSS-DR2 in the high-latitude inner Galaxy. |
| Author | Ana Erceg Ruđer Bošković Institute |
| Author | Vibor Jelić Ruđer Bošković Institute |
| Scientific / art field, discipline and subdiscipline | NATURAL SCIENCES Physics Astronomy and Astrophysics |
| Abstract (english) | Video of Faraday tomographic cube derived from polarimetric images of LOFAR Two metre Sky Survey data release 2 (LoTTS-DR2) in the high-latitude inner Galaxy. |
| Methods (english) | We produced a mosaic Faraday cube of LoTSS-DR2 data by applying a rotation measure synthesis algorithm. From the cube, we constructed Faraday moment maps to characterise the nature of spectra. Additionally, we quantified the linear depolarisation canals using the Rolling Hough transform and used them to search for alignment with other data sets. Utilising LoTSS-DR2 observations alongside complementary data sets including Planck polarisation data, HI emission maps, and starlight polarisation measurements, we explored conditions along observed lines of sight and estimated the distance to the Faraday structures. Results. The Faraday cube reveals a remarkably ordered structure across two-thirds of the observed area, whose orientation aligns well with that of both the HI filaments and the magnetic field. We estimate the minimum distance to the Faraday structures to be between 40 and 80 pc, which puts them in the vicinity of the Local Bubble wall. The emission is organised in a large gradient in Faraday depth whose origin we associate with the curved wall of the Local Bubble. |
| Keywords (english) | |
| Language | english |
| URN:NBN | urn:nbn:hr:241:518112 |
| Publication | 2024-10-28 |
| Project | Number: IP-2018-01-2889 Title (croatian): Razumijevanje zračenja na niskim radio frekvencijama: ususret novoj generaciji radio teleskopa Acronym: LowFreqCRO Leader: Vibor Jelić Jurisdiction: Croatia Funding stream: Research Projects |
| External related object | Is described by: DOI 10.1051/0004-6361/202450082 |
| Publisher | Institut Ruđer Bošković Ruđer Bošković Institute |
| Access conditions | Open access |
| Terms of use |  |
| Public note (croatian) | Ovaj video služi kao dodatak članku Erceg et al., 2024b. |
| Public note (english) | This video serves as supplementary material for the paper of Erceg et al., 2024b. |
| Created on | 2024-10-28 13:49:48 |
