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17 papers · 2 filters
Gaia Early Data Release 3: The Gaia Catalogue of Nearby Stars
Gaia Collaboration, R. L. Smart, L. M. Sarro +420
We produce a clean and well-characterised catalogue of objects within 100\,pc of the Sun from the \G\ Early Data Release 3. We characterise the catalogue through comparisons to the…
Coronal Elemental Abundance: New Results from Soft X-ray Spectroscopy of the Sun
S. Narendranath, P. Sreekumar, Netra S Pillai +3
Elemental abundances in the solar corona are known to be different from those observed in the solar photosphere. The ratio of coronal to photospheric abundance shows a dependence o…
Deriving CME density from remote sensing data and comparison to in-situ measurements
M. Temmer, L. Holzknecht, M. Dumbovic +8
We determine the 3D geometry and deprojected mass of 29 well-observed coronal mass ejections (CMEs) and their interplanetary counterparts (ICMEs) using combined STEREO-SOHO white-l…
On the occurrence of type IV solar radio bursts in the solar cycle 24 and their association with coronal mass ejections
Anshu Kumari, D. E. Morosan, E. K. J. Kilpua
Solar activity, in particular coronal mass ejections (CMEs), are often accompanied by bursts of radiation at metre wavelengths. Some of these bursts have a long duration and extend…
Low frequency radio observations of the `quiet' corona during the descending phase of sunspot cycle 24
R. Ramesh, A. Kumari, C. Kathiravan +3
We carried out a statistical study of the `quiet' solar corona during the descending phase of the sunspot cycle 24 (i.e. 2015 January - 2019 May) using data obtained with the Gauri…
Non-LTE inversions of a confined X2.2 flare: I. Vector magnetic field in the photosphere and chromosphere
G. J. M. Vissers, S. Danilovic, J. de la Cruz Rodriguez +7
Obtaining the magnetic field vector accurately in the solar atmosphere is essential for studying changes in field topology during flares and to reliably model space weather. We tac…