scholarly journals Chemical Abundances of Main-sequence, Turnoff, Subgiant, and Red Giant Stars from APOGEE Spectra. II. Atomic Diffusion in M67 Stars

2019 ◽  
Vol 874 (1) ◽  
pp. 97 ◽  
Author(s):  
Diogo Souto ◽  
C. Allende Prieto ◽  
Katia Cunha ◽  
Marc Pinsonneault ◽  
Verne V. Smith ◽  
...  
Keyword(s):  
Main Sequence ◽  
Atomic Diffusion ◽  
Chemical Abundances ◽  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant

scholarly journals Chemical Abundances of Main-sequence, Turnoff, Subgiant, and Red Giant Stars from APOGEE Spectra. I. Signatures of Diffusion in the Open Cluster M67

2018 ◽  
Vol 857 (1) ◽  
pp. 14 ◽  
Author(s):  
Diogo Souto ◽  
Katia Cunha ◽  
Verne V. Smith ◽  
C. Allende Prieto ◽  
D. A. García-Hernández ◽  
...  
Keyword(s):  
Main Sequence ◽  
Open Cluster ◽  
Chemical Abundances ◽  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant

A correlation between GALEX FUV magnitude and chromospheric activity among red giant stars

2018 ◽  
Vol 35 ◽  
Author(s):  
Graeme H. Smith
Keyword(s):  
Stellar Evolution ◽  
Main Sequence ◽  
Giant Stars ◽  
Chromospheric Activity ◽  
Chromospheric Emission ◽  
Red Giant Stars ◽  
Red Giant ◽  
Far Ultraviolet

AbstractIt is shown that upon combining GALEX far-ultraviolet and Johnson B magnitudes a resultant FUV–B colour can be obtained that for red giant stars of luminosity classes III and II correlates well with chromospheric emission in the cores of the Mg iih and k lines. Giant stars throughout the colour range 0.8 ≤ B – V ≤ 1.6 exhibit such a phenomenon. The main result of this paper is to show that GALEX far-ultraviolet photometry can provide information about the degree of chromospheric activity among red giant stars, and as such may offer a tool for surveying the evolution of chromospheric activity from the main sequence into the red giant phases of stellar evolution.

scholarly journals Chemical Abundances of Red Giant Stars in the Globular Cluster M107 (NGC 6171)

2011 ◽  
Vol 123 (908) ◽  
pp. 1139-1148 ◽  
Author(s):  
Julia E. O’Connell ◽  
Christian I. Johnson ◽  
Catherine A. Pilachowski ◽  
Geoffrey Burks
Keyword(s):  
Globular Cluster ◽  
Chemical Abundances ◽  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant

Isolating Red Giant Stars in M31's Elusive Outer Spheroid

1998 ◽  
Vol 116 (2) ◽  
pp. 707-722 ◽  
Author(s):  
David B. Reitzel ◽  
Puragra Guhathakurta ◽  
Andrew Gould
Keyword(s):  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant

Ellipsoidal Variability and Long Secondary Periods in MACHO Red Giant Stars

2006 ◽  
Vol 650 (1) ◽  
pp. L55-L58 ◽  
Author(s):  
A. Derekas ◽  
L. L. Kiss ◽  
T. R. Bedding ◽  
H. Kjeldsen ◽  
P. Lah ◽  
...  
Keyword(s):  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant

Dust clouds around red giant stars: Evidence of sublimating comet disks?

Icarus ◽  
1989 ◽  
Vol 81 (1) ◽  
pp. 24-30 ◽  
Author(s):  
John J. Matese ◽  
Daniel P. Whitmire ◽  
Ray T. Reynolds
Keyword(s):  
Giant Stars ◽  
Dust Clouds ◽  
Red Giant Stars ◽  
Red Giant

scholarly journals They Might Be Giants: An Efficient Color-based Selection of Red Giant Stars

2018 ◽  
Vol 861 (2) ◽  
pp. L16 ◽  
Author(s):  
Charlie Conroy ◽  
Ana Bonaca ◽  
Rohan P. Naidu ◽  
Daniel J. Eisenstein ◽  
Benjamin D. Johnson ◽  
...  
Keyword(s):  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant ◽  
Selection Of

scholarly journals Three-dimensional hydrodynamical CO5BOLD model atmospheres of red giant stars

2013 ◽  
Vol 559 ◽  
pp. A102 ◽  
Author(s):  
V. Dobrovolskas ◽  
A. Kučinskas ◽  
M. Steffen ◽  
H.-G. Ludwig ◽  
D. Prakapavičius ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Giant Stars ◽  
Red Giant Stars ◽  
Red Giant
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