We present a catalog of 5324 massive stars in the Small Magellanic Cloud (SMC), with accurate spectral types compiled from the literature, and a photometric catalog for a subset of 3654 of these stars, with the goal of exploring their infrared properties. The photometric catalog consists of stars with infrared counterparts in the Spitzer SAGE-SMC survey database, for which we present uniform photometry from 0.3to24 ЮМm in the UBVIJHKs +IRAC+MIPS24 bands. ...

Next: Ejectors in Massive Binary Previous: Artificial Galaxy: Full Matrix . The first version of the Scenario Machine was aimed especially at the simulation of massive binary star evolution. ... First, there is a large class of intermediate mass binaries (say, consisting initially of 8 + 5 solar masses) that can also produce NS and thus lead to the formation of a bright X-ray source. ... Next: Ejectors in Massive Binary Previous: Artificial Galaxy: Full Matrix Mike E. Prokhorov . ...

Next: Pass band integrations Up: Fit scenarios Previous: Triple with velocity curves Contents . Fit all three masses, as well as the inclination of one of the pairs. That not any combination of orbital inclinations is allowed can be seen from the fact that the triple consists of two double-lined binaries and only one mass solution exists for a given inclination. ... Christian Hummel 2015-04-28 ...

... The relationship of the mass and the observed galactocentric distance R -- (a), and that of the mass and the total dissipation velocity n taken from Gnedin, Ostriker (1997) -- (b). The dotted line in diagram (a) shows the "cone of survival" according to the paper by Surdin and Arkhipova (1998) . ... The solid line is a regression stright line for the main sequence of clusters, and the dotted line parallel to it separates the sequence of clusters of anomalously small mass shown by open triangles. ...

... According to modern views on the evolution and origin of stars, most of the stars are members of binary systems. ... After the second explosion, the pairs tend to break up and neutron stars and/or black holes fly apart. High velocities of radio pulsars are apparently largely due to this effect. ... For all possible pairs the probability of trajectory approach at small distances for the epoch, corresponding to the age of the younger pulsar have been evaluated. ... Pulsars J0543+2329 and J0528+2200. ...

... CXC , NASA Explanation: Large, massive stars end their furious lives in spectacular supernova explosions -- but small, low mass stars may encounter a similar fate. In fact, instead of simply cooling off and quietly fading away, some white dwarf stars in binary star systems are thought to draw enough mass from their companions to become unstable, triggering a nuclear detonation . ... Publications with keywords: supernova remnant - white dwarf - X-ray . ... Vela Supernova Remnant in Visible Light . ...

... 2003 March 14 . DEM L71: When Small Stars Explode . ... CXC , NASA . Explanation: Large, massive stars end their furious lives in spectacular supernova explosions -- but small, low mass stars may encounter a similar fate. In fact, instead of simply cooling off and quietly fading away, some white dwarf stars in binary star systems are thought to draw enough mass from their companions to become unstable, triggering a nuclear detonation . ... About APOD | ... NASA Technical Rep.: ...

FF Aqr DW Period is significantly greater than typical value for DW type. According to Pojmanski [45] this star is DCEP-FU: variable. According to Sipahi et al. [263] it is one of the few binary systems which consists of the hot subdwarf and cool chromospherically active giant components. ... Belongs to long-period RS CVn systems, secondary is more massive and more larger (volume of the secondary is approximately 100 times larger than that of the primary component). ... So may be SA system? ...

... Small spacecraft bus (SSB) is developed for small spacecraft, operating on near-Earth orbits or interplanetary trajectories (to the Moon, Mars etc.) ... The unit mass is 2.8 kg. Solar sensors with 130x2° FOV, 6 ang. min accuracy, and 2x0.34 kg mass. Star sensor with star-identifying controller, 56° FOV, 3 ang. min accuracy, and 0.51 kg mass. ... SSB is capable to control the spacecraft, including the attitude. ... The bus was fully manufactured for the Cosmos 1 (Solar Sail) project (2005). ...

... For SIMS (Secondary Ion Mass Spectrometry) analysis, a solid surface is bombarded by primary ions of some keV energy. ... The subsequent mass analysis of the emitted ions provides detailed information on the elemental and molecular composition of the surface. ... Extremely short ion pulses with a duration below . ... By rastering a fine-focussed ion beam over the surface, like an electron beam in an electron microprobe, mass resolved secondary ion images (chemical maps) can be obtained...

Helium-Rich Subdwarfs Helium rich subdwarfs, in general, are very evolved stars. ... A binary star system is a star system consisting of two stars orbiting their common centre of mass. ... Shown Left. Above: Artist's impression of a binary star system Methods: The images on the left show the observed wavelength of a He I absorption line being measured. To get an accurate reading for the radial velocity, I used the program ELF to fit a parabola to a He I absorption line. ...

... Called Gliese 623b or Gl623b, the diminutive star (right of center) is ten times less massive than the Sun and 60,000 times fainter. ... The image file is on oposite.stsci.edu in the directory /pubinfo/gif: PR# GIF File Caption text Object STScI-PRC94-54 Gl623b.gif G1623b.txt Dwarf Star Gliese 623b The photo release text is in the directory /pubinfo/press-releases: PR# PR text STScI-PRC94-54 PR-54.txt Another directory, /pubinfo/latest, contains all of the files relevant to the latest releases. ...

Uranus ' innermost ten moons are: . ... C ordelia is the innermost of Uranus' known satellites: orbit : 49,752 km from Uranus diameter : 26 km mass : ? ... D iscovered by Voyager 2 in 1986. ... O phelia is the second of Uranus' known satellites: orbit : 53,764 km from Uranus diameter : 32 km mass : ? ... B ianca is the third of Uranus' known satellites: orbit : 59,165 km from Uranus diameter : 44 km mass : ? ... P uck and the other small moons are very dark (albedo less than 0.1). from LANL . ...

... Indeed, one alteration of orbits can be the outright ejection of a planet. When several big planets are orbiting a star under each other's influence, the system is inherently unstable. ... We know of no good reason why the smallest objects with fusion should have the same mass as the smallest objects that can form by themselves. ... 6) Mission Definition . ... I don't think this mission is impossible, and will suggest a definition in a future article in Mercury. ... Good luck! . ...

Optical Communication Experiment using Very Small Optical transmitter with SLR station National Institute of Information and Communications Technology, Japan Space Communications System Laboratory Hiroo Kunimori and VSOTA TEAM Sep 24, 2012 WPLTN Technical Workshop@St.Petersburg, Russia Table of Contents Backgound:HODOYOSHI Project JapaneseHODOYOHI= Reasonable Reliability Engineering to develop series of 50kg Satellite. ... How to share wavelength communication beam and ranging beams. ...

. This artist s impression shows how photons in the cosmic microwave background (CMB) are deflected by the gravitational lensing effect of massive cosmic structures as they travel across the universe. Gravitational lensing creates tiny, additional distortions to the mottled pattern of the CMB temperature fluctuations. A small fraction of the CMB is polarized; one component of this polarized light, B-modes, have been given an additional signature by gravitational lensing. ESA/Planck Collaboration

Next: A candidate young galaxy? Up: Results and discussion Previous: Current star formation rate . The integrated H I line flux, the characteristic widths of 21 cm line profile W 50 and W 20 (for a Hanning smoothing of 10.6 km s -1 ), and the derived H I mass for HS 0822+3542 are presented in Table 1 . The small H I mass 2.4 of this galaxy is consistent with its low optical luminosity. ... A rough estimation can be made also on the dynamical mass of HS 0822+3542. ...

Ultracompact dwarf galaxies (UCDs) are among the densest stellar systems in the Universe. With typical masses of 10^7 to 10^8 solar masses and half-mass radii between 10 to 100 pc they are more than a factor 1000 denser than dwarf galaxies of the same mass. They also show evidence for elevated mass-to-light ratios, which could be due to the presence of massive black holes or unusual stellar IMFs as a result of their extreme densities. ...

HIGH RESOLUTION IONOSPHERIC MASS SPECTROMETER P-11 . ... Onboard mass-spectrometric equipment for study of neutral and ionized components of Earth upper atmosphere. Mass-spectrometer P-11 is one of P-series modifications of the on board radio-frequency monopole spectrometers. ... The instruments of P-series have passed successful approbation in space experiments aboard geophysical rockets MP-12, launched for investigation of Earth upper atmosphere (Ref. ... Measured mass number range, AMU - 1.. ...

... Phase light curves of binary model that consists of a primary component with mass M 1 and a secondary component with mass M 2 . ... The input parameters of the problem are the accretion rate onto the binary components ( ), the component mass ratio q = M 2 /M 1 , the orbital inclination to the line of sight , the eccentricity e, the rotation angle of the apsidal line relative to the observer , and the parameter c characterizing viscosity. ...