0000000000334172
AUTHOR
G Cusumano
showing 5 related works from this author
Case report: necrotizing fascitis of odontogenenic origin in a subject affected by uncompensated type 2 diabetes mellitus
2008
The PCSK9 gene: a new gene controlling cholesterolemia
2007
The distribution of cholesterol plasma is regulated by complex interactions between genes and environmental factors. Mutations of PCSK9 gene seem to modulate the levels of LDLC. Mutations of PCSK9 gene with gain of function are associated to hypercholesterolemia and mutations with loss of function determine hypocholesterolemia.
A transient ultraluminous X-ray source in NGC 55
2022
Ultraluminous X-ray sources (ULXs) are a class of accreting compact objects with X-ray luminosities above 10$^{39}$ erg s$^{-1}$. The average number of ULXs per galaxy is still not well constrained, especially given the uncertainty on the fraction of ULX transients. Here, we report the identification of a new transient ULX in the galaxy NGC 55 (which we label as ULX-2), thanks to recent XMM-Newton and the Neil Gehrels Swift Observatory observations. This object was previously classified as a transient X-ray source with a luminosity around a few 10$^{38}$ erg s$^{-1}$ in a 2010 XMM-Newton observation. Thanks to new and deeper observations ($\sim$ 130 ks each), we show that the source reaches…
The LOFT mission concept: a status update
2016
The Large Observatory For x-ray Timing (LOFT) is a mission concept which was proposed to ESA as M3 and M4 candidate in the framework of the Cosmic Vision 2015-2025 program. Thanks to the unprecedented combination of effective area and spectral resolution of its main instrument and the uniquely large field of view of its wide field monitor, LOFT will be able to study the behaviour of matter in extreme conditions such as the strong gravitational field in the innermost regions close to black holes and neutron stars and the supra-nuclear densities in the interiors of neutron stars. The science payload is based on a Large Area Detector (LAD, >8m2 effective area, 2-30 keV, 240 eV spectral resolut…