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Degradation effects in concrete bound ferrochrome slag under aggressive sulphuric acid and sulphate attack
Ferrochrome slag (FS) having favourable mechanical properties) may be gainfully utilised as concrete aggregate. The concrete specimens with FS,...
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Evaluating the influence of backfilling on the stability of an abandoned room-and-pillar mine: a case study in northern Spain
Bodovalle is a siderite mine located in northern Spain that is currently in the closure phase. The mine was exploited using the room-and-pillar...
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Orbit Dynamics, Stability and Chaos in Planetary Systems
Let us start with a problem of dynamical biology, which was posed about 800 years ago by Fibonacci1
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Planet Formation
Motivating the study of planet formation is not difficult for any curious audience. One of the fundamental human questions is that of origins: “where...
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Clusters of Galaxies at High Redshift
For a long time, the small number of clusters at z > 0.3 in the Abell survey catalogue and simulations of the standard CDM formation of large scale...
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Velocity Dispersion Analysis of CNOC Clusters
I present results of the analysis of the internal velocity dispersions,...
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The Metal Enrichment History of Clusters of Galaxies
The ratio of the total iron mass in the ICM to the total optical luminosity of the cluster (the iron mass-to-light-ratio) is the same for all...
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Supernovae at High Redshift
Distant supernovae provide a convenient tool for cosmology. As bright beacons with small variation in their peak luminosity Type Ia Supernovae can be...
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The Galactic Bulge: Prospects for the VLT
The central bulge of the Galaxy is 100 times closer than the nearest extragalactic bulge, that of M31. Until the era of 100m telescopes arrives, the...
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The Old Population of the Magellanic Clouds
The brightest old stars in the LMC are as faint as V=16 (V=16.5 in the SMC). The VLT with UVES or GIRAFFE will provide, for the first time, high...
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The Stellar Mass Function
Considerable progress has been made recently in more accurately determining the frequency distribution of stellar masses in the critical 0.1 to 1 m...
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Synergy Between the VLT and the NGST
Three major astronomical facilities will address the distant universe and processes of star formation in the next decade: the Next Generation Space...
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The Cluster Population in a Complete Sample of Optically Identified RASS X-Ray Sources
Using the 2.1-m telescope of the Guillermo Haro Observatory (Cananea, Mexico) the optical counterparts of a count-rate and area limited complete...
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Massive Stars and Their Role in Spectra and Abundances of High Redshift Galaxies
There are great changes in our understanding of massive star evolution. Although it is a known fact that the populations of massive stars (O-stars,...
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Planetary Microlensing: Present Status and Long-Term Goals
Massive gravitational microlensing programs were begun about a decade ago as a means to search for compact baryonic dark matter in the Galaxy [1],...
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Extrasolar Planets Transits: Detection and Follow-Up
The detection of transits has a rich potential of information about extrasolar planets. This contribution gives an overview and new perspectives on...
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Solar Nebulae and Replenished Dust Disks with Planets
Having studied the primordial, protoplanetary gas disks, and older, dusty “remnant” disks in infrared-emitting (Vega-type) circumstellar systems, we...
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The Darwin Space Interferometer
Darwin is a mid-IR(5-30 micron) interferometry observatory with baselines greater than 50 metres. As a long-duration general purpose observatory, ESA...
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Surveys of the Distant Solar System
The rapid development in the 1990’s of surveys for distant Centaurs and Trans-Neptunian Objects (TNOs) is reviewed. With 94 TNOs and 9 Centaurs found...
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Dust Measurements in the Outer Solar System
Dust measurements in the outer solar system are reviewed. Only the plasma wave instrument on board Voyagers 1 and 2 recorded impacts in the...