G203.7+11.5 21cm and 11cm intensity maps : J/A+A/641/A121

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Authors : Reich W. orcid , Reich P., Sun X. (hide) , Reich P., Sun X. et..al

VizieR DOI : 10.26093/cds/vizier.36410121
Bibcode : 2020A&A...641A.121R (ADS) (Simbad) (Objects)
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CDS Keywords : Supernova remnants; Radio sources; Polarization
UAT : Supernova remnants, Radio sources, Polarimetry

Observation (OC)

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Inserted into VizieR : 18-Sep-2020
Last modification : 07-Dec-2020

Long, depolarising H{alpha}-filament towards the Monogem ring. (2020)

Keywords : polarisation ISM - ISM: individual objects: Monogem Ring - ISM: magnetic fields - radio continuum: ISM

Abstract:In soft X-rays, the Monogem ring is an object with a diameter of 25{deg} located in the Galactic anti-centre. It is believed to be a faint, evolved, local supernova remnant. It is not seen at radio wavelengths, as other large supernova remnants are. We study a narrow about 4.5D long, faint Halpha-filament, G203.7+11.5, that is seen towards the centre of the Monogem ring. It causes depolarisation and excessive Faraday rotation of radio polarisation data. Polarisation observations at 11cm and 21cm with the Effelsberg 100-m telescope were analysed. ...(more)
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Astronomy and Astrophysics policies
G203.7+11.5 is visible on the EMLS {lambda}21cm maps as a long, narrow polarisation depression (canal) that extends from l,b ~ 204{deg}, +12{deg} to l,b ~ 203.3{deg} + 10{deg}. We used total-intensity and linear-polarisation data from an unpublished section of the EMLS. When completed, the EMLS will cover the northern Galactic plane +/-20{deg} in latitude at an angular resolution of 9.4'. Radio continuum and linear polarisation observations of G203.7+11.5 were made at {lambda}11cm with the Effelsberg 100-m radio telescope. The observations started in 1997/1999 and were completed with an improved {lambda}11cm receiver in 2007.
Wolfgang Reich, wreich(at)mpifr-bonn.mpg.de

                


                

                    

                


                

                    

                


                

                    
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