2024MNRAS.527..803R -
Mon. Not. R. Astron. Soc., 527, 803-812 (2024/January-1)
The Galactic supernova remnant CTB 1: optical and X-ray emission analysis.
REYES-ITURBIDE J., AMBROCIO-CRUZ P., SILVA R., ROSADO M., ARIAS L., GABBASOV R. and TRIGUEROS D.
Abstract (from CDS):
We present the kinematic results for the supernova remnant (SNR) CTB 1, obtained with the PUMA equipment of the 2.1-m telescope at San Pedro Mártir National Astronomical Observatory, Baja California, Mexico. The observations were made on the H α line using a Fabry-Perot interferometer. The kinematics derived from the Fabry-Perot velocity cubes allowed us to estimate a kinematic distance for this SNR. We estimate that CTB1 is about 3.8 kpc from the sun, corresponding to a linear diameter of 19 pc, with an expansion velocity of $286 \rm ~ km ~s^{-1}$. Additionally, we analyse the diffuse X-ray emission from CTB 1 using data from the XMM-Newton observatory. From the best fits to the spectrum of southwest and northeast regions, we obtained a hot plasma temperature $\sim 0.1-0.3 ~\rm keV$ with an overabundance in O and Ne and a lower abundance in Fe, which could be caused by a SNR with a stellar progenitor between 10 to $70 \, \rm {\rm M}_{\odot }$. The initial energy of the supernova explosion is estimated between (0.6-1.0) × 1050 erg for soft X-ray emission. The X-ray emission also presents a non-thermal component of low surface brightness in the hard X-ray band. Images in radio and X-ray emission allow us to classify CTB 1 as mixed-morphology supernova type. The evolution models show that the cloudy ISM model is the only one that reproduces the mixed morphology type observed in the SNR CTB 1.
Abstract Copyright:
© 2023 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
Journal keyword(s):
methods: numerical - ISM: individual objects: SNR CTB 1 - ISM: kinematics and dynamics - ISM: supernova remnants - X-rays: individual: SNR CTB 1 - radio continuum: ISM
Simbad objects:
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