TY - JOUR AU - Rodríguez, Luis F. AU - Gómez, Yolanda AU - Alberto López, J. AU - García-Díaz, Ma. Teresa AU - Clark, David M. PY - 2016/01/11 Y2 - 2024/03/29 TI - H91α Radio Recombination Line and 3.5 cm Continuum Observations of the Planetary Nebula NGC 3242 JF - Revista Mexicana de Astronomía y Astrofísica JA - RevMexAA VL - 46 IS - 1 SE - Articles DO - UR - https://journals.unam.mx/index.php/revmexaa/article/view/23600 SP - AB - We present high sensitivity H91 and 3.5 cm radio continuum observations toward the planetary nebula NGC 3242. The electron temperature determined assuming local thermodynamic equilibrium is consistent within ~10% with that derived from optical lines and the Balmer discontinuity. The line emission and the continuum emission have a very similar spatial distribution, suggesting that at this wavelength there is no other continuum process present in a signi cant manner. In particular, we conclude that emission from spinning dust is not important at this wavelength. In this radio recombination line the nebula presents a radial velocity structure consistent with that obtained from observations of optical lines. ER -