Results 251 to 260 of about 71,994 (275)

Prospects for detecting signs of life on exoplanets in the JWST era. [PDF]

open access: yesProc Natl Acad Sci U S A
Seager S   +4 more
europepmc   +1 more source

The dramatic transition of the extreme Red Supergiant WOH G64 to a Yellow Hypergiant

open access: yes
Munoz-Sanchez G   +10 more
europepmc   +1 more source

UV Stellar Spectral Classification

1987
Stellar observers in the ultraviolet tend to use the MK classification system as a spectral reference also in this spectral range, implying that it characterizes the whole spectrum, even if it is defined only from the visible range. However, an analysis of about two thousand spectra collected by the S2/68 experiment on board the TD1 satellite showed ...
openaire   +1 more source

Infrared Classification of Young Stellar Objects

1996
The radiative transfer equation for a dusty envelope as close as possible to an embedded central source possesses scaling properties. For a given dust chemical composition, the solution depends only on overall optical depth and the functional form of the radial dust distribution.
Željko Ivezić, Moshe Elitzur
openaire   +1 more source

Stellar Spectral Classification

2021
Richard O. Gray   +5 more
openaire   +1 more source

What Stellar Classification Tells Us

2009
When Bunsen and Kirchoff observed the stars spectroscopically, they opened up a new field of observation, and stellar spectroscopy soon became a routine. What the astronomers discovered was a bewildering variety of stellar spectra, to the point of confusion and disarray.
openaire   +1 more source

Stellar Classification

1988
R. F. Garrison   +9 more
openaire   +1 more source

Stellar Classification

1982
R. F. Garrison   +5 more
openaire   +1 more source

Classification and Description of Stellar Spectra

1932
To Joseph von Fraunhofer we are indebted for the first analyses of the spectra of fixed stars. Though he was concerned with the study of spectra primarily from the standpoint of an optician and maker of achromatic objectives, Fraunhofer’s truly scientific interest led him instinctively to record and describe new phenomena which came under his ...
openaire   +1 more source

Stellar Classification

1994
D. J. MacConnell   +4 more
openaire   +1 more source

Home - About - Disclaimer - Privacy