HI envelopes around HII regions . ... We have investigated 32 HII regions and around 17 of them we have found the clumped HI envelopes with radial motions. The example of the envelope around HII regions M16 is shown on figure 1. ... The thickness of envelopes is rather great - 0.44 radius, mass are about 6E+4 mass of the Sun, kinetic energies - 10E+50 ergs. ... The model of formation of HI envelope was advanced as outcome of an operation of a summarized stellar wind of stars, exciting HII region. ...

Proceedings of Turbulent Shear Flows XI , 1997. NASA Technical Paper # 3555 , 1997. Proceedings of European Turbulence Conference VI , 1996. ESPRI Research Report # 104, 117-143 (1996) . ... Proceedings of Turbulent Shear Flows X , 1995. ASME Paper 95-GT-437 , 1995. ... Invited AIAA Paper 94-2281 presented at the 1994 AIAA Fluid Dynamics Conference, Colorado Springs, CO. AIAA Paper 94-2323, presented at the 1994 AIAA Fluid Dynamics Conference, Colorado Springs, CO. ...

... Meta Index / Home Page This section documents the parameters recognized by this task (if any). Parameter . ... Constraints . ... in equation 1 must exceed this value for a source to pass. mindetml . ... For a source to pass, ii_DET_ML must be mindetml and ii_MASKFRAC must be minmaskfrac for at least one of the instruments ii. minmaskfrac . ... For a source to pass, ii_DET_ML must be mindetml and ii_MASKFRAC must be minmaskfrac for at least one of the instruments ii. numhexchar . ... 3.5 1.0 1.0 . ...

sw@newmail.ru THE PROBE LAYER METHOD IN THE CALCULATIONS OF CONTRIBUTION AND RESPONSE FUNCTIONS S.G.Mozharovsky Ussuriysk Astrophysical Observatory of FEB RAS, Ussuriysk, Russia sw@newmail.ru The method of probe layer for the calculation of response and contribution functions is discussed. ... This allows us to turn from the response functions to the contribution functions calculated with help of the probe layer (CFPL). ... V- VMAX . ... Solar Phys., v.136, p.239-250. ... Solar Phys., v.35, p.11-29. ...

Visual Discovery of SN 1996X in NGC 5061. ... It was not until the IAU Circular was issued that we found out there had been an independent amateur photographic discovery of this supernova by Kesao Takamizawa of Japan. ... Earlier in the week, 660 galaxies had been observed during two nights we had use of the 40 inch telescope at Siding Spring. ... The supernova in NGC 5061 was first seen with the smaller telescope about 10pm local time on Friday, April 12 (April 12.5 UT). ...

... we show that the comparison between the calculated and observed numbers of the most ``fragile'' (from the point of view of the binary evolution scenario )   galactic binary types (such as X-ray low-mass X-ray binaries (LMXB), cataclysmic variables (CV),   Be-stars   with compact companions, relative number of visible binary radiopulsars   with normal and compact secondary components) impose certain constraints on the feasible initial ... Phenomenological Kick Velocity . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... A number of parameters appear in the parameter area which correspond to the status of the package when the interface is created. These parameters can be changed by typing the new values in the field, or reading them from a previously saved session table. The option in the menu may be used to read a session file. The name of the currently loaded session is indicated in the first text field Session at the top of the parameter area in the Main window. ...

... FTP access the basic models is here . ... Below, we put short descriptions of the used SED models for the photometric redshifts providing by the current server . ... The uniqueness of this model consists in expanding to the near IR (NIR) of Rocca-Volmerange and Guiderdoni's (1988) atlas of synthetic spectra with a revised stellar library, which includes parameters of cool stars. ... Homepage of the GISSEL model). ... Another model used earlier is the model of synthetic spectra of Poggianti (1997). ...

... Calculated exposure times do not take into account instrument and telescope overheads. ... The exposure time calculator consists of two pages. ... An instrument description for HAWK-I is available on the instrument page . ... begin{equation} \mathit{FWHM}_{\text{IQ}} = \sqrt{\mathit{FWHM}_{\text{atm}}^2(\mathit{s},x,\lambda)+\mathit{FWHM}_{\text{tel}}^2(\mathit{D},\lambda)+\mathit{FWHM}_{\text{ins}}^2(\lambda)} \end{equation} } \) . ... F_{\text{Kolb}} = \frac {1}{1+300 {\text{ }} D/L_{0}}-1$$ . ...

ACS Insturment Handbook for Cycle 24 . ... Advanced Camera for Surveys Instrument Handbook for Cycle 24 > Chapter 9: Exposure-Time Calculations > 9.1 Overview . ... 9.1.1 The ACS Exposure Time Calculator . In this chapter we explain how to use sensitivities and throughputs to determine the expected count rate from your source and how to calculate exposure times to achieve a given signal-to-noise ratio for your ACS observations taking all background contributions into account. ...

... Programme . ... Abstract: Globular clusters can probe the formation history of galaxies by providing evidence for the chemical evolution and major episodes of star formation in their host galaxies, by examining their kinematic signatures, as well as their structural parameters. ... The giant elliptical NGC 5128 (Centaurus A), at a mere 4 Mpc away, gives us the only opportunity to study in extensive detail the globular cluster system of a recent merger galaxy. ...

... astro-ph . ... Whitespace-separated words are treated as AND ed. Show 10 50 100 articles per page in Full Compact mode . ... Quasar Variability in the Framework of Poissonian Models . ... It is shown that in this very general framework the well established anti-correlation between variability amplitude and wavelength can only be understood as an effect of an underlying spectral component which remains stable on long time-scales, and is redder than the variable component. ...

Do we need various assumptions to get a good FCN? A new multiple layer spectral method Cheng-li HuangMian Zhang Shanghai Astron. ... No FCN ! ... FCN,FCN,FCN.. Multiple layer spectral method (MLSM) + Linear Operator Method (LOM) Finite Element Method (FEM) · · Traditional approach solves one order ellipsoid only. ... Main Idea of FEM Boundary Surface could be described as: Let's consider how to solve the dynamic equation: Traditional Approach: Equivalent Spherical Domain . ...

... Up: Data Analysis Tools, Techniques, and Software . Previous: Starfinder: a Code for Crowded Stellar Fields Analysis . Table of Contents - Subject Index - Author Index - PS reprint - . ... 216, Astronomical Data Analysis Software and Systems IX, eds. N. Manset, C. Veillet, D. Crabtree (San Francisco: ASP), 627 . ... Kitt Peak National Observatory, National Optical Astronomy Observatories, P.O. Box 26732, Tucson, AZ 85726 . ...

OptInt PmWiki : Pm Wiki / Conditional Markup . ... current page is named " PAGENAME " . ... true if current page name matches the regular expression . ... The name and group conditionals will work even for an included page, as the "name" and "group" conditionals always check the currently displayed page, as opposed to the page that the markup appears in. ... can be used with the name and group conditional markups, thus: . ... current page is in group PmWiki or a group beginning with PmWiki . ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Here we present the ionospheric parameters variations for quiet conditions. ...

TOOLS OF TEST GENERATION FOR SATELLITES CONTROL PROGRAMS Andrey Tyugashev, Ekaterina Myasnikova, Elena Sopchenko S.P. Korolyov Samara State Aerospace University (National Reseach University) The paper presents a research in the field of test automation for testing spacecraft control programs. ... Programmers or designers of spacecraft systems write tests manually. ... Tests are carried out by issuing the control actions on the spacecraft and condition monitoring systems parameters of the spacecraft. ...

... He made observations of a supernova (literally: nova= "new star") in 1572 (we now know that a supernova is an exploding star, not a new star). ... Brahe's meticulous observations showed that the supernova did not change positions with respect to the other stars (no parallax). ... This was early evidence against the immutable nature of the heavens, although Brahe did not interpret the absence of parallax for stars correctly, as we discuss below. Brahe made careful observations of a comet in 1577. ...

... Exploring the physics of Type Ia supernovae through spectral analysis . ... Their progenitor scenario as well as the details of the explosion mechanism remain a mystery. ... It produces a supernova spectrum for a given luminosity, photospheric velocity, time since explosion and several elemental abundances. Tweaking these parameters to produce a spectrum that fits an observed spectrum is a complex, as of yet, manual task. ... The search space is large and complex. ...