On studying some new models of Robertson-Walker universes with a Brans-Dicke scalar field, it is found that most of these universes contain a dark energy like f
HD 6840 is a double-lined visual binary with an orbital period of ~7.5 years. By fitting the speckle interferometric measurements made by the 6 m BTA telescope a
Utilizing a Bz K-selection technique, we obtain 14 550 star-forming galaxies(sB z Ks) and 1763 passive galaxies(p Bz Ks) at z ~ 2 from the K-selected(KAB < 22.5)
We investigate 25 H II regions that show bubble morphology in13CO(1–0)and infrared data,to search for quantitative evidence of triggered star formation by proc
This work uses a combination of a variational auto-encoder and generative adversarial network to compare different dark energy models in light of observations,