... The 7 and 15 um observations of selected fields in the Galactic Plane obtained with ISOCAM during the ISOGAL program offer an unique possibility to search for previously unknown YSOs, undetected by IRAS because of lower sensitivity or confusion problems. ... The main indications of the previous analysis are confirmed, but the criteria for selecting YSO candidates had to be revised to select only bright objects, in order to limit the contamination of the sample by Post-MS stars. ...

... The hotter the gas, the faster they move, and the more energy each of them holds. The free ions and electrons in a plasma behave the same way. Knowing the temperature of the high atmosphere of Earth, or that of the Sun, we can calculate energies expected of ions and electrons found there. However, ions and electrons actually observed in space are often much , much more energetic, and may move at a respectable fraction of the velocity of light (300,000 km/sec or 186,000 miles/sec). ...

... (Center for Astronomical Research/Observatory of Lyon, France), and J.-P. Kneib (Astrophysical Laboratory of Marseille, France) Sunday , October 6, 2013 · · · · · · · The Emerging Picture of Cluster Galaxy Evolution Mancone+10 Cluster cores in the local Universe are generally red and dead. increased star forming fraction toward cluster cores at z 1.4 (e +10, Tran+10, Hayashi+11, Fassbender+11) .g. Hilton m* ... Trends depend on galaxy mass and type. ... Rapid growth of red sequence?...

Organisateurs: Michel Balazard (CNRS, Laboratoire Poncelet) , Michael Tsfasman (CNRS, Laboratoire Poncelet, Institut des Probl mes de Transmission de l'Information) , Alexey Zykin (Laboratoire Poncelet, Haute Ecole d'Economie) . ... Informations g n rales . ... By comparing several restrictions of Siegel-Eisenstein series of degree 3, B.Heim recently found a remarkable (and somewhat mysterious) formula relating central values of triple L-functions to other critical values. ... Laboratoire Poncelet . ...

Once students get the hang of it, they can find and measure the brightness of Delta Cephei in a few minutes. ... of Delta Cephei . ... Oct. ... The following table lists the measurements of Delta Cephei made by one amateur astronomer in autumn 1990. ... 4.0 . ... This activity is a simplified version of one that appeared in Hands-On Astrophysics, a series of activities prepared by the American Association of Variable Star Observers with support from the National Science Foundation. << previous page | ...

To a special Solar Physics issue on the Bastille Day Event: . ... Multi-scale temporal features of the 14 July 2000 meter-wavelength dynamic radio spectrum compared with TRACE data . ... Figure 1 (100 KB). SOHO/EIT (a) and LASCO/C2 (b) images show the region of the eruptive flare event of 14 July 2000 and related halo CME. ... Figure 2 (47 KB). ... Figure 3 (115 KB). Medium-scale dynamic spectrum (a), 204 MHz metric (b) and 3000 MHz microwave (c) profiles of the "Bastille Day" event. ...

. Subdwarfs . Metal deficient red giants in galactic field . Red horizontal branch stars . Blue horizontal branch stars . Extended horizontal branch stars . Stars inside globular clusters . W Vir type stars . IRAS-sources identified with peculiar supergiants . RCrB type stars . Sakurai's object . peculiar supergiant FG Sge .

... All the galaxies are divided into 4 groups depending on the environment type; every subsample contains more than 10 galaxies. ... An effect of environments is seen both for the nuclei and for the bulges: if we consider the clusters (Virgo and Ursa Ma jor) and group centers as dense environments and the field and group periphery as sparse environments, then in the dense environments the stellar populations of S0s are in average older by 4­5 Gyr than in the sparse ones. ...

... Submitted by Paul Benni on 11/27/2013 18:38:14 . Comet C/2013 R1 Lovejoy (November 8) . Morning image (Nov. 8) of Comet Lovejoy. ... C8 EdgeHD SCT with Hyperstar (f/2.1) and ST-8300C ccd. Image is uncropped from the Hyperstar setup. Compare to my Comet ISON image with the same image scaling. Interesting how much brighter and larger Comet Lovejoy is now compared to ISON. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

We have designed the laboratory model of static Fourier spectrometer for onboard usage for spectral study of atmosphere and ionosphere. The gain of model is to simulate onboard FS which will not have any moving elements (all its optical elements will be mounted at fused quartz monolithic construction), to compare experimental results with theoretical estimations and to measure MTF of CCD array. ... This fact connected with low frequency response of CCD array due to small format of it. ...

... As basic observational stages to be compared with calculations, we have chosen the objects listed in Table  4 . It is important to note that we use the total accretion X-ray luminosity   for low-mass X-ray binaries and not their total number, since the total accretion luminosity in the Galaxy = (average luminosity of the individual sources) (number of sources) (average stage duration) and thus is independent of the poorly known values of accretion rate and accretion stage duration . ...

Mikhail Medvedev (University of Kansas) HEA- 2007 , IKI, Moscow Missing baryons in inter-cluster gas Afshordi, et al, 2007 , astro-ph/0612700 35% +/- 8% Sample of 260 clusters WMAP SZ 3yr data Compared with 11 simulated clusters Assumed: Universal NFW profile Self-similarity Isothermal gas Possible explanations Observed stellar mass in galaxies: ~ 10% (Lin, et al, ... Simulations indicate that the effect is small (Dolag, et al, 2004) Can account for ~1-2% missing mass at most ...

... The substepping technique is used for the Hubble Space Telescope (HST) imaging to cope with the problem of undersampling and to improve resolution. ... For the HST, undersampling means that the size of the pixel in a camera is larger than the critical value determined by the optics of the telescope, and aliasing takes place. ... Sampling is an operation to integrate a ( x ) within a pixel, and to assign the result to this pixel (Figure 1 A). ... Figure 1: Substepping ( N =2) and normal sampling. ...

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. ...

LIPSKIY-RODIONOVA' LUNAR ANTIPODES AS PRECURSORS OF A REGULAR WAVE PLANETOLOGY G.G.Kochemasov IGEM of the Russian Academy of Sciences, Moscow, Russia kochem@igem.ru / Fax: (009)(095)230 21 79 The first observations of the lunar far side allowed to compare it with the near side and draw very important conclusions in the very beginning of planetary studies based on spacecrafts. ... Celestial bodies are dichotomic. ... The concept of celestial bodies includes Sun (a star) as one of them. ...

... ME AND MY SCHOOL . SOURCES . THE CHART OF THE DIFFERENCES IN THE SPELLING OF SOME WORDS CONNECTED WITH SCHOOL AND EDUCATIONAL SYSTEM IN BRITAIN AMERICA. ... РАЗЛИЧНЫЕ СТРАНЫ ИМЕЮТ РАЗЛИЧНЫЕ СИСТЕМЫ ОБРАЗОВАНИЯ, НАПРИМЕР ВЕЛИКОБРИТАНИЯ ИЛИ СОЕДИНЕННЫЕ ШТАТЫ. ... ОБО МНЕ И МОЕЙ ШКОЛЕ(ME AND MY SCHOOL), . ... А ТАКЖЕ ВАМ ПРЕДЛАГАЕТСЯ ТАБЛИЦА РАЗЛИЧИЙ В НАПИСАНИИ И ПРОИЗНОШЕНИИ СЛОВ СВЯЗАННЫХ С ОБРАЗОВАТЕЛЬНОЙ СИСТЕМОЙ В США(AMERICAN ENGLISH)И ВЕЛИКОБРИТАНИИ(BRITISH ENGLISH)-THE CHART . ...

... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

Next: NICMOS/HST H-band (F160W) Images Up: NICMOS Science Previous: HST NICMOS Observations of . ... Observations of P . ... The NICMOS team has devised a comprehensive program of observations of the Galactic Center. ... Data in hand give a first look at variability and a detailed look at the search for the tip of the main sequence will be discussed where NICMOS has demonstrated adequate sensitivity and photometric precision to identify likely O8-B1 stars at the Galactic Center. ...

... Space Res., 12, 265, 1992 planetary magnetic dipole: Mizutani, H., et al., ... Astrobiology, 7, 167, 2007 CME induced H+ ion pick-up loss at 0.05 AU for ` Hot Jupiters ' HD209458 b Mass loss ~1011 g/s even for weak CMEs Mmax strong magn. protection in reality Exoplanet magnetospheres - importance of magnetodisk Relatively large amount of observed Hot Jupiters (27%): survival of close-in giants indicates their efficient protection against of extreme plasma and radiation conditions ...

... We have made series of computer runs of the orbital evolution of asteroids for the 3/1 and 5/2 resonances with Jupiter using both the symplectic integrator RMVS3 [1] and the Bulirsh­Stoer method [2] (BULSTO). ... Besides the values of r hc presented in the Table at N = 144, for the 3/1 resonance at N = 24 we obtained r hc equal to 4.0, 1.7, 0.33, 0.4, and 0.7 at '' = 10 \Gamma8 , 10 \Gamma9 , d s = 3, 10, and 30 days, respectively. So in some cases a symplectic method can give large errors. ...