We present the results obtained from detailed spectral and timing studies of extra-galactic black hole X-ray binaries LMC~X--1 LMC~X--3, using simultaneous observations with {\it Nuclear Spectroscopic Telescope Array (NuSTAR)} Neil Gehrels Swift} observatories. The combined spectra in $0.5-30$~keV energy range, between 2014 2019, are investigated for both sources. do not find any noticeable var...

We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of interstellar O vi absorption toward 12 early-type stars in the LargeMagellanic Cloud (LMC). The observations have a velocity resolution of.20 km s 1 (FWHM) and clearly show O vi 1031.926 Å absorption at LMC velocities toward all 12 stars. From these observations we derive column densities of interstellar O vi in this nearb...

BACKGROUND Treatment abandonment (TxA) is recognized as a leading cause of treatment failure for children with cancer in low-and-middle-income countries (LMC). However, its global frequency and burden have remained elusive due to lack of global data. This study aimed to obtain an estimate using survey and population data. METHODS Childhood cancer clinicians (medical oncologists, surgeons, and...

ORFEUS far UV echelle spectra have been used to investigate H I, H2 and CO absorption lines along the line of sight towards LH 10:3120 in the LMC, extending the study presented by de Boer et al. (1998). While H2 absorption is clearly visible, no CO absorption at LMC velocities is detected, but an upper limit of N(CO) ≤ 3.3 × 10 cm for the CO column density is derived for the C-X band near 1088 ...

We obtained new VLT/ISAAC H-band observations for five MACHO LMC source stars and adjacent LMC field regions. After combining our near-IR photometry with HST/PC BVRI optical photometry, we compared the MACHO objects to the adjacent field stars in a variety of color-magnitude and color-color diagrams. These diagnostic diagrams were chosen to be sensitive to our hypothesis that at least some of t...

AGB stars in the Magellanic Clouds. II. The rate of star formation across the LMC. Abstract. This article compares the distribution of Ks magnitude of Large Magellanic Cloud (LMC) asymptotic giant branch (AGB) stars obtained from the DENIS and 2MASS data with theoretical distributions. These have been constructed using up-to-date stellar evolution calculations for low and intermediate-mass star...

We report the discovery of two new R Coronae Borealis (RCB) stars in the Large Magellanic Cloud (LMC) using the MACHO project photometry database. The identiication of both stars has been connrmed spectroscopically. One is a cool RCB star (T eff 5000 K) characterized by very strong Swan bands of C 2 and violet bands of CN, and weak or absent Balmer lines, G-band and 12 C 13 C bands. The second ...

Two observation campaigns performed in 2003 and 2004 with the INTEGRAL satellite have provided the first sensitive survey of the Large Magellanic Cloud with an imaging instrument in the hard X-ray range (15 keV 10 MeV). The high energy flux and long term variability of the black hole candidate LMC X–1 was measured for the first time without the contamination of the nearby (∼25′) young pulsar PS...

We have estimated JHKs magnitudes corrected to mean intensity for LMC type II Cepheids found in the OGLE-III survey. Period-luminosity relations (PLRs) are derived in JHKs as well as in a reddening-free V I parameter. The BL Her stars (P < 4 d) and the W Vir stars (P = 4 to 20 d) are co-linear in these PLRs. The slopes of the infrared relations agree with those found previously for type II Ceph...

BACKGROUND AND PURPOSE Impaired cerebrovascular reserve in chronic steno-occlusive disease has been shown to be associated with poor leptomeningeal collaterals (LMCs) on digital subtraction angiography and increased stroke risk. We examined the relationship between the degree of LMCs and the flow change with Diamox challenge measured using quantitative magnetic resonance angiography (QMRA). M...