Evidence of a Supernova Origin for the Black Hole in GRO J1655-40 (Nova Scorpii 1994)
We report the discovery of a strong overabundance of several α-elements in the atmosphere of the star orbiting around the massive black hole in the binary...
Evidence Of An Association Between The Presence Of Penumbrae And Strong Radial Outflows In Sunspots
Time series of high-resolution images of the complex ac-tive region NOAA 10786 are studied. The observations were performed in G-band (430.5 nm) and in the...
Evidence of Cosmic Accretion in Local Tadpole Galaxies
Star formation in galaxies over cosmic time may be driven by gas accretion from the cosmic web. Spectra of local extremely metal-poor galaxies (XMPs), obtained...
We present the results of optical fast photometry of five SXTs in quiescence: V404 Cyg, A 0620--00, J 0422+32, GS 2000+25 and Cen X--4 and report the evidence...
The wealth of exoplanets and the architectures of planetary systems that continue to emerge, is astounding and raises questions about the general picture of...
Evolución química en la Nube Mayor de Magallanes a partir de fotometría de Washington de cúmulos estelares
From C, T1 Washington photometry in the field of NGC 1697, SL 133, NGC 1997, SL 663, and OHSC 28, five mostly unstudied star clusters in the LMC, we estimate...