... X-ray data of GX 3+1 (4U 1744-26) obtained in broad energy ranges using BeppoSAX (0.1­200 keV) and Rossi X-Ray Timing Explorer (RXTE) (3­200 keV) offer a unique The Astrophysical Journal, 747:99 (15pp), 2012 March 10 Seifina & Titarchuk possibility to further investigate, in detail, the evolution of X-ray spectral properties during transition events. ... In Figure 2, we illustrate our spectral model as a basic model for fitting the BeppoSAX and RXTE spectral data for GX 3+1. ... Figure 4. ...

... The new meteorites are moderately weathered, impact-melt breccias. ... Dhofar 304 is a brownish-gray, moderately weathered stone weighing 10 g. This is an impact-melt breccia in which mineral fragments and lithic clasts are embedded in a fine-grained impact-melt matrix. ... Dhofar 306 is a light-gray, moderately weathered stone weighing 2.6 g. This is an impact-melt breccia composed of mineral fragments and lithic clasts cemented by a fine-grained, impact-melt matrix. ... 3 Dhofar 306 Mg/(Mg+Fe), at...

... Our tours this year include: Yuri Gagarin Cosmonaut Training Center at Star City, Bauman Moscow State Technical University Orevo Laboratory, Russian Mission Control Center (TsUP), Rocket and Space Corporation Energia, Lavochkin Scientific and Industrial Association, Energomash Scientific and Industrial Association, Scientific and Industrial Association "Zvezda", Khrunichev State Research & Production Space Center, Monino Air Force Museum. Bauman Moscow State Technical University . Moscow) . ...

... Bad Astronomy . ... Every few months, one of a series of questions comes up on the USENET group sci.astro involving tides, or the rotation of the Moon, or the recession of the Moon from the Earth. ... Why the Moon's rotation period is the same as the length of time it takes to orbit the Earth (same as number 1, but phrased differently). ... But when this happens, the time it takes for the Earth to rotate once will be slowed to exactly the same time it takes for the Moon to go around the Earth once! ...

The monitoring of the optics quality of DIMM instrument V. Kornilov, B. Safonov May 24, 2010 1 Intro duction A quantitative theory of measurement of optical turbulence (OT) with Differential Image Motion Monitor (DIMM) is based on certain priori assumptions [1]. ... Bottom: behavior of the instrumental Strehl's number for the left (triangle to the left) and right (triangle to the right) DIMM images during the period of measurement the maintenance of an additional correction factor seems superfluous. ...

... 8 February , 2014 SAI seminar (Ryde et al 2010) 5 Thermal emission from GRB jet progenitor observer photon jet Photosphere (=1) · · · · Photons are not produced at the photosphere We have to calculate radiative transfer We need to know where the photons are produced We construct the expression for effective optical depth in relativistic flow considering random walk process in relativistic flow SAI seminar 6 8 ... 8 February, 2014 SAI seminar 28 ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

... Сегодня: 10 апреля 2016 г. Компания EADS Astrium, как сообщает ВВС, продемонстрировала на Международной аэрокосмической выставке в Берлине макет пилотируемого космического корабля ATV Evolution. Отсек экипажа макета ATV Evolution (изображение с сайта ВВС) . ... Проект пилотируемого аппарата ATV Evolution представляет собой дальнейшее развитие программы ATV (Automated Transfer Vehicle), в рамках которой создавался первый европейский космический корабль "Жюль Верн". ...

This is a progress report on the 2dF QSO Redshift Survey as was presented at the Second Coral Seas Cosmology Meeting on Dunk Island, September 1999. Three talks about the survey were presented at the conference. The others were.... QSO Clustering and Large-Scale Structure , Scott Croom et al . QSO Evolution and the Luminosity Function , B.J. Boyle et al . | << - Meeting Proceedings | Talk Overview - >> | . Robert J. Smith, ">rsmith@mso.anu.edu.au Last modified: Fri Sep 24 11:39:02 EST 1999 .

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

... GCR and SCR are primary cosmic rays. 10-15 years after the discovery of cosmic radiation (1919) there emerged two main avenues of investigation in the physics of cosmic rays (CR): 1) nuclear - elucidation of the origin of elementary particles and nuclear interactions; and 2) astrophysical (space physics) - solution of the problem related to the origin and variations (changes in intensity) of CR. ... Besides, the CR flux in interplanetary space is, strictly speaking, not isotropic. ...

... The spectrum of the brightest star, our Sun, shows several dark gaps perpendicular to the flow of it’s colours (figure 1). These so called spectral absorption lines where discovered in 1802 by the English scientist William Wollaston. ... Some stars as Pollux show a spectrum similar to that of our sun with strong Ca II and Fe II lines, others as Sirius or Vega show strong absorption lines of hydrogen, others, as Mira show very complicated spectra due to molecular absorption lines (see figure 5). ...