We describe a series of observations of NGC 1313 using the ROSAT HRI with a combined exposure time of 183.5 ksec. The observations span an interval between 1992 and 1998; the purpose of observations since 1994 was to monitor the X-ray flux of SN1978K, one of several luminous sources in the galaxy. No diffuse emission is detected in the galaxy to a level of ∼12×10 ergs s arcmin. A total of eight...

Two ultraluminous X-ray sources (ULXs) in the nearby Sb galaxy NGC 1313, named X-1 and X-2, were observed with Suzaku on 2005 September 15. During the observation for a net exposure of 28 ks (but over a gross time span of 90 ks), both objects varied in intensity by about 50 %. The 0.4–10 keV X-ray luminosity of X-1 and X-2 was measured as 2.5× 10 erg s and 5.8× 10 erg s, respectively, with the ...

We report a mid-infrared color and surface brightness analysis of IC 10, NGC 1313, and NGC 6946, three of the nearby galaxies studied under the Infrared Space Observatory Key Project on Normal Galaxies. Images with <9 (170 pc) resolution of these nearly face-on, late-type galaxies were obtained using the LW2 (6.75 μm) and LW3 (15 μm) ISOCAM filters. Though their global Iν(6.75μm) Iν(15μm) flux ...

يعد النشاط الاقتصادي عصب الحياة وأساس قيام الدول واستمرارها، فهو الموجه الرئيسي لها، ومن خلاله تقاس مكانتها ، ونظرا للدور المهم الذي لعبه هذا الجانب في نشأة وتطور موانئ المغرب الأوسط، جاءت هذه الدراسة الموسومة أثر العلاقات التجارية ازدهار لموانئ الأوسط خلال المدة (ق 5-7هـ/11-13م)، والتي تتضمن مبحثين تناول المبحث الأول منها مع بلدان العالم الاسلامي، إضافة الى الحديث عن أهم السلع والبضائع المتباد...

Pm-pose: T&o&g is employed to provide unsightly oxseas with a central srtificial pupil or to reduce glare from a parscentral leucoms. The technique is to apply platinum (or gold) chloride to the designated area sfter an epitbelial debridement and subsequently to apply a reducing agent. This procedure is nowadays tmcmnmon in tbe western world, but is still popular in some countries. According to...

NGC 1313 X-2 is one of the brightest ultraluminous X-ray sources in the sky, at both X-ray and optical wavelengths; therefore, quite a few studies of available ESO VLT and HST data have appeared in the literature. Here, we present our analysis of VLT/FORS1 and HST/ACS photometric data, confirming the identification of the B ∼ 23 mag blue optical counterpart. We show that the system is part of a...