Response to Comment on "A noninteracting low-mass black hole-giant star binary system".

Van den Heuvel and Tauris argue that if the red giant star in the system 2MASS J05215658+4359220 has a mass of 1 solar mass ( ), then its unseen companion could be a binary composed of two 0.9 stars, making a triple system. We contend that the existing data are most consistent with a giant of mass [Formula: see text] , implying a black hole companion of [Formula: see text] .

A noninteracting low-mass black hole-giant star binary system.

Black hole binary systems with companion stars are typically found via their x-ray emission, generated by interaction and accretion. Noninteracting binaries are expected to be plentiful in the Galaxy but must be observed using other methods. We combine radial velocity and photometric variability data to show that the bright, rapidly rotating giant star 2MASS J05215658+4359220 is in a binary system with a massive unseen companion.

Impact of the landfill of ashes from the smelter on the soil environment: case study from the South Poland, Europe.

The following research describes the influence of a metallurgical ash dump on both the soil environment and the atmosphere. Soil samples were collected along a line positioned on an unprotected, hazardous ash dump and extended into the adjacent, arable land. Three soil depths were sampled at 0-20-, 20-40- and 40-60-cm depth intervals, and in each sample, pseudo-total concentrations of Cd, Cr, Cu, Fe, Mn, Ni, Pb, Ti, Zn, Li, Sr and V were analyzed.

Correlations between 10-year risk of death from cardiovascular diseases.

Introduction: Osteoporosis and cardiovascular diseases (CVD) are more common in the elderly population and have similar risk factors. THE GOAL: was an evaluation of the correlation between 10-year risk of death from CVD and 10-year bone fracture risk (FRAX).

Material And Methods: A total of 79 patients of the Regional Centre of Menopause and Osteoporosis of the Military Teaching Hospital in Lodz (Poland), aged 50-83 years, consulted for osteoporosis were divided into two groups: study group - with osteoporosis (O; T-score ≤ -2.