The Common Envelope Origins of the Fast Jet in the Planetary Nebula M 3-38

DOI: 
10.3847/2041-8213/ac78dc
Publication date: 
08/07/2022
Main author: 
Rechy-García, J. S.
IAA authors: 
Guerrero, M. A.;Rodríguez-López, C.
Authors: 
Rechy-García, J. S.;Toalá, J. A.;Guerrero, M. A.;Rodríguez-López, C.;Sabin, L.;Ramos-Larios, G.
Journal: 
The Astrophysical Journal
Refereed: 
Yes
Publication type: 
Article
Volume: 
933
Pages: 
L24
Abstract: 
We present the analysis of Multi-Espectrógrafo en GTC de Alta Resolución para Astronomía (MEGARA) high-dispersion integral field spectroscopic observations of the bipolar planetary nebula (PN) M 3-38. These observations unveil the presence of a fast outflow aligned with the symmetry axis of M 3-38 that expands with a velocity of up to ±225 km s<SUP>-1</SUP>. The deprojected space velocity of this feature can be estimated to be ≍320 ${}_{-60}^{+130}$ km s<SUP>-1</SUP>, which together with its highly collimated morphology suggests that it is one of the fastest jets detected in a PN. We have also used Kepler observations of the central star of M 3-38 to unveil variability associated with a dominant period of 17.7 days. We attribute this to the presence of a low-mass star with an orbital separation of ≍0.12-0.16 au. The fast and collimated ejection and the close binary system point toward a common envelope formation scenario for M 3-38.
Database: 
ADS
SCOPUS
URL: 
https://ui.adsabs.harvard.edu/#abs/2022ApJ...933L..24R/abstract
ADS Bibcode: 
2022ApJ...933L..24R
Keywords: 
Planetary nebulae;Stellar jets;Stellar winds;Low mass stars;1249;1607;1636;2050;Astrophysics - Solar and Stellar Astrophysics;Astrophysics - Earth and Planetary Astrophysics