A Catalog of Wide Binary and Multiple Systems of Bright Stars from Gaia-DR2 and the Virtual Observatory [PDF]
Astronomical Journal, 2019 Binary and multiple stars have long provided an effective empirical method of testing stellar formation and evolution theories. In particular, the existence of wide binary systems (separations >20,000 au) is particularly challenging to binary formation ...
F. Jim'enez-Esteban +2 more
semanticscholar +1 more source
Magnetic cycles at different ages of stars [PDF]
, 2016 We study the different patterns of interannual magnetic variability in stars on or near the lower main sequence, approximately solar-type (G-K dwarf) stars in time series of 36 years from the Mount Wilson Observatory Ca\,{\sc ii}\,H\&K survey.
Baliunas, S. +6 more
core +2 more sources
Multiplicity of Chemically Peculiar Stars [PDF]
, 2007 7 pages, 4 figures, to appear in the Proceedings of the ESO Workshop "Multiple Stars across the H-R Diagram"
Markus Schöller +2 more
openaire +3 more sources
CCD measurements of double and multiple stars at NAO Rozhen: II [PDF]
Serbian Astronomical Journal, 2006 Using the 2-m telescope of the Bulgarian National Astronomical Observatory at Rozhen observations of twenty multiple stars were carried out during one whole night - October 30/31, and, also, during the first half of the next one - October 31. 2005.
Cvetković Z. +3 more
doaj +1 more source
Multiple Stellar Populations in Metal-poor Globular Clusters with JWST: A NIRCam View of M92
The Astrophysical Journal, 2023 Recent work on metal-intermediate globular clusters (GCs) with [Fe/H] = −1.5 and −0.75 has illustrated the theoretical behavior of multiple populations in photometric diagrams obtained with the JWST.
Tuila Ziliotto +12 more
doaj +1 more source
Binarity among CEMP-no stars: an indication of multiple formation pathways? [PDF]
Astronomy & Astrophysics, 2018 Carbon-enhanced metal-poor (CEMP) stars comprise a high percentage of stars at the lowest metallicities. The stars in the CEMP-no subcategory do not show any s-process enhancement and therefore cannot easily be explained by transfer of carbon and s ...
A. Arentsen +5 more
semanticscholar +1 more source
Dust Around T Tauri Stars [PDF]
Journal of Astronomy and Space Sciences, 2011 To reproduce the multiple broad peaks and the fine spectral features in the spectral energy distributions (SEDs) of T Tauri stars, we model dust around T Tauri stars using a radiative transfer model for multiple isothermal circumstellar dust shells. We
Kyung-Won Suh, Young-Joo Kwon
doaj +1 more source
The multiplicity of massive stars in the Orion Nebula cluster as seen with long-baseline interferometry [PDF]
, 2013 The characterization of multiple stellar systems is an important ingredient for testing current star formation models. Stars are more often found in multiple systems, the more massive they are.
Grellmann, Rebekka +5 more
core +1 more source
A New Catalog of Am-type Chemically Peculiar Stars Based on LAMOST
The Astrophysical Journal Supplement Series, 2023 A total of about 21,600 Am candidates were detected with the MKCLASS code based on the low-resolution spectra of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope Data Releases 8 (v1.0), 9 (v0), and 10 (v0), which greatly expands the database
Xiao-man Tian +3 more
doaj +1 more source
Evaluating the effect of stellar multiplicity on the PSF of space-based weak lensing surveys [PDF]
, 2015 The next generation of space-based telescopes used for weak lensing surveys will require exquisite point spread function (PSF) determination. Previously negligible effects may become important in the reconstruction of the PSF, in part because of the ...
Courbin, F., Kuntzer, T., Meylan, G.
core +1 more source