Chemical characterization of the globular cluster NGC 5634 associated to the Sagittarius dwarf spheroidal galaxy [PDF]
, 2017 As part of our on-going project on the homogeneous chemical characterization of multiple stellar populations in globular clusters (GCs), we studied NGC 5634, associated to the Sagittarius dwarf spheroidal galaxy, using high-resolution spectroscopy of red
Bragaglia, Angela +7 more
core +2 more sources
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
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
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
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
Multiple stellar populations in Magellanic Cloud clusters – VI. A survey of multiple sequences and Be stars in young clusters [PDF]
, 2018 The split main sequences (MSs) and extended MS turnoffs (eMSTOs) detected in a few young clusters have demonstrated that these stellar systems host multiple populations differing in a number of properties such as rotation and, possibly, age.We analyze ...
A. Milone +19 more
semanticscholar +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
Globular cluster chemistry in fast rotating dwarf stars belonging to intermediate age open clusters [PDF]
, 2018 (shortened) The peculiar chemistry observed in the multiple populations of Galactic globular clusters is not generally found in other systems like dwarf galaxies and open clusters, and at the moment no model can fully explain its presence.
Pancino, E.
core +2 more sources
A Survey of Herbig Ae/Be Multiplicity
The Astronomical Journal, 2023 Although the majority of Herbig Ae/Be (HAEBE) stars are likely multiple systems, relatively few multiples have been identified. We aim to create a statistically significant survey of HAEBE multiplicity as a function of stellar mass, to shed light on ...
S. J. Thomas +7 more
doaj +1 more source
Numerical evidence for `multi-scalar stars' [PDF]
, 2002 We present a class of general relativistic soliton-like solutions composed of multiple minimally coupled, massive, real scalar fields which interact only through the gravitational field.
D. Kaup +23 more
core +2 more sources