@article{discovery10197343, publisher = {American Association for the Advancement of Science (AAAS)}, month = {August}, volume = {385}, pages = {962--966}, note = {This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.}, journal = {Science}, number = {6712}, year = {2024}, title = {In situ observations of large-amplitude Alfv{\'e}n waves heating and accelerating the solar wind}, abstract = {After leaving the Sun's corona, the solar wind continues to accelerate and cools, but more slowly than expected for a freely expanding adiabatic gas. Alfv{\'e}n waves are perturbations of the interplanetary magnetic field that transport energy. We use in situ measurements from the Parker Solar Probe and Solar Orbiter spacecraft to investigate a stream of solar wind as it traverses the inner heliosphere. The observations show heating and acceleration of the plasma between the outer edge of the corona and near the orbit of Venus, along with the presence of large-amplitude Alfv{\'e}n waves. We calculate that the damping and mechanical work performed by the Alfv{\'e}n waves are sufficient to power the heating and acceleration of the fast solar wind in the inner heliosphere.}, url = {http://dx.doi.org/10.1126/science.adk6953}, author = {Rivera, Yeimy J and Badman, Samuel T and Stevens, Michael L and Verniero, Jaye L and Stawarz, Julia E and Shi, Chen and Raines, Jim M and Paulson, Kristoff W and Owen, Christopher J and Niembro, Tatiana and Louarn, Philippe and Livi, Stefano A and Lepri, Susan T and Kasper, Justin C and Horbury, Timothy S and Halekas, Jasper S and Dewey, Ryan M and De Marco, Rossana and Bale, Stuart D} }