Results 51 to 60 of about 2,275,942 (365)

Spectrophotometric Parallaxes with Linear Models: Accurate Distances for Luminous Red-giant Stars [PDF]

open access: yesAstronomical Journal, 2018
With contemporary infrared spectroscopic surveys like APO Galactic Evolution Experiment (APOGEE), red-giant stars can be observed to distances and extinctions at which Gaia parallaxes are not highly informative.
D. Hogg, A. Eilers, H. Rix
semanticscholar   +1 more source

Characterisation of red-giant stars in the public Kepler data

open access: yes, 2011
The first public release of long-cadence stellar photometric data collected by the NASA Kepler mission has now been made available. In this paper we characterise the red-giant (G-K) stars in this large sample in terms of their solar-like oscillations. We
Chaplin, W. J.   +9 more
core   +5 more sources

Gamma-ray flares from red giant/jet interactions in AGN [PDF]

open access: yes, 1995
Non-blazar AGN have been recently established as a class of gamma-ray sources. M87, a nearby representative of this class, show fast TeV variability on timescales of a few days. We suggest a scenario of flare gamma-ray emission in non-blazar AGN based on
Barkov, Maxim V.   +2 more
core   +5 more sources

The red giant branch phase transition: Implications for the RGB luminosity function bump and detections of Li-rich red clump stars [PDF]

open access: yes, 2015
We performed a detailed study of the evolution of the luminosity of He-ignition stage and of the red giant branch bump luminosity during the red giant branch phase transition for various metallicities.
Cassisi, Santi   +2 more
core   +2 more sources

Amplitude and lifetime of radial modes in red giant star spectra observed by Kepler [PDF]

open access: yesAstronomy & Astrophysics, 2018
Context. The space-borne missions CoRoT and Kepler have provided photometric observations of unprecedented quality. The study of solar-like oscillations observed in red giant stars by these satellites allows a better understanding of the different ...
M. Vrard   +6 more
semanticscholar   +1 more source

Red Giants observed with CoRoT [PDF]

open access: yesAIP Conference Proceedings, 2009
Observations of red (G-K)-giant stars with the CoRoT satellite provide unprecedented information on the stochastically excited oscillations in these stars. The long time series of nearly uninterrupted high-cadence and high-precision photometry revealed the presence of non-radial modes with long lifetimes, which opens the possibility to perform ...
S. Hekker   +9 more
openaire   +3 more sources

Peripheral giant cell granuloma

open access: yesContemporary Clinical Dentistry, 2012
Peripheral giant cell granuloma or the so-called "giant cell epulis" is the most common oral giant cell lesion. It normally presents as a soft tissue purplish-red nodule consisting of multinucleated giant cells in a background of mononuclear stromal ...
Padam Narayan Tandon   +4 more
doaj   +1 more source

The Near-infrared Tip of the Red Giant Branch. II. An Absolute Calibration in the Large Magellanic Cloud [PDF]

open access: yes, 2018
We present a new empirical JHK absolute calibration of the tip of the red giant branch (TRGB) in the Large Magellanic Cloud (LMC). We use published data from the extensive Near-Infrared Synoptic Survey containing 3.5 million stars, 65,000 of which are ...
Taylor J. Hoyt   +9 more
semanticscholar   +1 more source

Asteroseismology of red giants [PDF]

open access: yes, 2014
This chapter has been prepared for publication in "Asteroseismology", Canary Islands Winter School of Astrophysics, Volume XXII, edited by Pere L.
openaire   +3 more sources

Potential Mechanism of Detoxification of Cyanide Compounds by Gut Microbiomes of Bamboo-Eating Pandas

open access: yesmSphere, 2018
Gut microbes can enhance the ability of hosts to consume secondary plant compounds and, therefore, expand the dietary niche breadth of mammalian herbivores.
Lifeng Zhu   +7 more
doaj   +1 more source

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