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Near-UV and Optical Spectroscopic Investigation of Late-type Stars from the MIRA/Oliver Observing Station
Karmakar, Subhajeet; Pandey, Jeewan Chandra; Shedge, Riddhi +4 more
Late-type stars are the most abundant in the galactic stellar population. These stars, with the similar internal structure to the Sun, are expected to have solar-like atmospheres. Investigating the stellar parameters and chemical abundances on late-type stars is essential to provide valuable constraints about stellar age, chemical evolution, and a…
Prolonged and Extremely Non-radial Solar Wind Flows
Fujiki, Ken'ichi; Chakrabarty, Dibyendu; Rout, Diptiranjan +3 more
We present a study of three highly non-radial solar wind events in which the azimuthal solar wind flow angle exceeds 6° for one day or more. None of the events are associated with coronal mass ejections and co-rotating interaction regions observed at 1 AU. For all events, the solar wind outflows at 1 AU exhibit low velocity and density. Based on t…