Results 31 to 40 of about 45,220 (265)

Solar-type dynamo behaviour in fully convective stars without a tachocline [PDF]

, 2016
In solar-type stars (with radiative cores and convective envelopes like our Sun), the magnetic field powers star spots, flares and other solar phenomena, as well as chromospheric and coronal emission at ultraviolet to X-ray wavelengths.
Jeremy J. Drake, Drake, Jeremy J., Nicholas J. Wright, Wright, Nicholas J.   +3 more
core   +1 more source

Lithium Abundance of the Solar-Type Superflare Stars [PDF]

Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016), 2017
{"references": ["Maehara, H., et al. 2012, Nature, 485, 478", "Shibayama, T., et al. 2013, ApJS, 209, 5", "Notsu, Y., et al. 2015, PASJ, 67, 32", "Notsu, Y., et al. 2015, PASJ, 67, 33", "Honda, S., et al. 2015, PASJ 67, 85", "Herbig, G. H. 1965, ApJ, 141, 588", "Skumanich, A. 1972, ApJ, 171, 565", "Mishenina, T. V., et al.
Honda, Satoshi, Notsu, Yuta, Maehara, Hiroyuki, Notsu, Shota, Shibayama, Takuya, Nogami, Daisaku, Shibata, Kazunari   +6 more
openaire   +1 more source

Multiplicity of Solar-Type Stars [PDF]

International Astronomical Union Colloquium, 1977
AbstractA systematic search for binaries in a sample of 123 bright field stars of types F3-G2 IV or V is described. Combination of the results for 25 newly discovered spectroscopic binaries with those of 21 spectroscopic, 23 visual, and 25 common-proper-motion pairs previously known brings to 88 the total number of companions identified in the sample ...
openaire   +1 more source

Starspots on Young Solar-Type Stars [PDF]

Proceedings of the International Astronomical Union, 2013
AbstractDoppler Imaging of starspots on young solar analogues is a way to investigate the early history of solar magnetic activity by proxy. Doppler images of young G-dwarfs have yielded the presence of large polar spots, extending to moderate latitudes, along with measurements of the surface differential rotation. The differential rotation measurement
Brown, Carolyn, Carter, Brad, Marsden, Stephen, Waite, Ian   +3 more
openaire   +2 more sources

A BCool survey of the magnetic fields of planet-hosting solar-type stars [PDF]

, 2017
16 pages, 13 figures.International audienceWe present a spectropolarimetric snapshot survey of solar-type planet hosting stars. In addition to 14 planet-hosting stars observed as part of the BCool magnetic snapshot survey, we obtained magnetic ...
Morin, J., Jeffers, Sandra V., Mengel, M. W., Fares, R., Morin, Julien, Vidotto, A. A., Collaboration, The Bcool, Petit, P., Horner, J., King, R. R., Carter, Brad D., Marsden, S. C., King, R., Jeffers, S. V., Carter, B. D.   +14 more
core   +1 more source

Fourier analysis of spectra of solar-type stars [PDF]

Kinematics and Physics of Celestial Bodies, 2017
We used Fourier transform techniques to determine macroturbulent velocity. The analysis is done with mictoturbulent velocity and rotation velocity as an unknown quantities. In order to distinguish the effects of rotation from macroturbulence effects in slowly rotating stars, primarily the main lobe of residual Fourier transforms of the observed lines ...
openaire   +2 more sources

XMM-Newton X-ray study of early type stars in the Carina OB1 association [PDF]

, 2007
<p><b>Aims:</b> X-ray properties of the stellar population in the Carina OB1 association are examined with special emphasis on early-type stars.
I. I. Antokhin, J. C. Brown, Rauw, G., G. Rauw, J.-M. Vreux, Antokhin, I. I., Antokhin, I.I., Brown, J.C., van der Hucht, K.A., Rauw, Grégor, K. A. van der Hucht, Vreux, Jean-Marie, Vreux, J.M., van der Hucht, K. A., Brown, J. C.   +14 more
core   +1 more source

Characterizing the Nearby Solar-Type Stars [PDF]

International Astronomical Union Colloquium, 1999
AbstractWe present a brief discussion of solar-type stars, what is known about them, why they are ideal targets for precise radial-velocity observations, and some open questions.
D. R. Soderblom, J. R. King
openaire   +1 more source

Self‐Regulated Learning Meets AI: Reinterpreting Self‐Regulation, Co‐Regulation, and Socially Shared Regulation in Human–AI Interaction

New Directions for Adult and Continuing Education, EarlyView.
ABSTRACT Advancing artificial intelligence (AI) has transformed learning and work, yet higher education and professional development programs have not systematically equipped learners for AI‐prevalent environments. This lack of preparation creates uncertainty regarding control, responsibility, trust, and accountability.
Moon‐Heum Cho, Jerusalem Merkebu
wiley   +1 more source

Magnetic fields on young, solar-type stars [PDF]

, 2013
This thesis describes an investigation aimed at using spectropolarimetric observations of the magnetic fields of young solar-type stars to improve the understanding of the early development of solar and stellar dynamos and activity cycles.
Waite, Ian
core