Results 81 to 90 of about 11,425 (209)
Discovery of Weak CN Stars in the Large Magellanic Cloud and Comparison to Stellar Models
The Astrophysical JournalThe recent discovery that red supergiants in M31 and M33 contain a weak CN spectral absorption feature at ∼8000 Å prompted us to analyze a large CTIO 4 m Hydra spectral database of stars in the Large Magellanic Cloud (LMC).
Douglas Grion Filho +6 more
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The Astrophysical JournalWe present a comprehensive analysis of 32 type II supernovae (SNe II) with plateau phase photometry and late phase ( nebular ) spectroscopy available, aiming to bridge the gap between the surface and core of their red supergiant (RSG) progenitors.
Qiliang Fang +4 more
doaj +1 more source
Red supergiant star studies with CO5BOLD and Optim3D
, 2013 We describe recent work focused towards a better understanding of red supergiant stars using 3D radiative-hydrodynamics (RHD) simulations with CO5BOLD. A small number of simulations now exist that span up to seven years of stellar time, at various numerical resolutions. Our discussion concentrates on interferometric and spectroscopic observations.
Plez, Bertrand, Chiavassa, A.
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Near-infrared spectroscopy of candidate red supergiant stars in clusters [PDF]
Astronomy & Astrophysics, 2014 16 pages, 10 figures, accepted to A&A ...
Maria Messineo +7 more
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Red Supergiant Problem Viewed from the Nebular Phase Spectroscopy of Type II Supernovae
The Astrophysical JournalThe red supergiant (RSG) problem refers to the observed dearth of luminous RSGs identified as progenitors of Type II supernovae (SNe II) in pre-SN imaging.
Qiliang Fang +2 more
doaj +1 more source
The Mass-Loss Return From Evolved Stars to The Large Magellanic Cloud VI: Luminosities and Mass-Loss Rates on Population Scales [PDF]
, 2012 We present results from the first application of the Grid of Red Supergiant and Asymptotic Giant Branch ModelS (GRAMS) model grid to the entire evolved stellar population of the Large Magellanic Cloud (LMC).
Meixner, M. +3 more
core +2 more sources
SiO Masers in a Scutum Massive Star Cluster of Red Supergiants
The Astrophysical Journal, 2006 We have detected five objects toward a Scutum massive star cluster of red supergiants in the SiO J = 1-0, v = 1 or v = 2 transitions. The radial velocity data indicate that four of the detections are cluster members and that the other, which is located close to the X-ray source AX 1838-0655, is a foreground object.
Nakashima, JI, Deguchi, S
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The Stellar Content of the Young Open Cluster Berkeley 50 (IC 1310)
The Astronomical JournalWe observed the Galactic open cluster Berkeley 50 in order to determine its stellar content, distance, and age. We obtained UBV photometry of 1145 stars in a 12.′3 × 12.′3 field, and used Gaia proper motions and parallaxes to identify 64 members, of ...
Meghan Speckert +2 more
doaj +1 more source
, 2010 The yellow supergiant content of nearby galaxies provides a critical test of massive star evolutionary theory. While these stars are the brightest in a galaxy, they are difficult to identify because a large number of foreground Milky Way stars have ...
Ardeberg +43 more
core +1 more source
Hiding in plain sight - red supergiant imposters? Super-AGB stars [PDF]
Proceedings of the International Astronomical Union, 2015 AbstractSuper Asymptotic Giant Branch (Super-AGB) stars reside in the mass range ≈ 6.5-10 M⊙ and bridge the divide between low/intermediate-mass and massive stars. They are characterised by off-centre carbon ignition prior to a thermally pulsing phase which can consist of many tens to even thousands of thermal pulses.
Doherty, Carolyn L. +3 more
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