. Illustration of the gravitational lensing measurement of the cosmic expansion speed. The accelerated expansion increases the distance to the quasar, giving rise to higher chance of having a massive galaxy close to the light path to produce gravitational lensing. Credit: Kavli IPMU

... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Green ESO . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... ESO 1-metre Schmidt telescope . ... Interferometric observations of a single star are shown, as the distance between the two telescopes is gradually increased. The observed pattern at the focal plane clearly changes, and the "fringes" disappear completely. ...

... Posts tagged ?distance ladder? ... Hyunsook drew attention to this paper (arXiv:0709.4531v1) by Brad Schaefer on the underdispersed measurements of the distances to LMC . ... Tags: arXiv , distance ladder , LMC , overdispersion , priors . Category: arXiv , Bad AstroStat , Bayesian , Stat , Uncertainty | Comment . ... Entries RSS . Comments RSS . ... vlk on [MADS] Parallel Coordinates . upvc windows on [MADS] Parallel Coordinates . ... Alfred Inselberg on [MADS] Parallel Coordinates . ...

Measurement of Sky Brightness at the Iranian National Observatory Davoud Afshari1 and Sadollah Nasiri1,2 1Physics Department, Zanjan University, Zanjan 45195-313, Iran; Institute for Advanced studies in Basic Science (IASBS), Zanjan 45195-1159, Iran; Measurement of light pollution 2 Introduction Among 34 candidate sites at the central part of the country, 5 sites namely Garkesh (in Kashan ), Kolahbarfi(in Kashan ), Deynava (in ... One of these is light pollution. ...

Next: Output Up: Calling Parameters Previous: Calling Parameters Contents . rawX, rawY . the rawY value increases towards the centre of the PN array, and thus charge is increasingly lost with distance. There is a column to column dependency of charge loss, and this is invoked with the rawX parameter . frame . needed to keep track of the possibility of precursor events in the same column and CCD readout frame as the subject event. eIn . ... Michael Smith 2011-09-20 ...

... A distance-limited sample of southern Wolf-Rayet stars within 3 kpc of the Sun has been observed with the Australia Telescope Compact Array at 8.64 GHz and 4.80 GHz. ... Five sources are classified as non-thermal. ... We derive mass-loss rates for the thermal sources. After combining them with all existing radio mass-loss rates of Wolf-Rayet stars in the northern and southern hemisphere, we perform a comparison with mass-loss rates derived from optical emission lines. ...

RESOLUTION of the International Scientific Technical Conference WPLTN-2012 1. ... We take note that nano-gradient optical coatings have a good future in laser-ranging systems. ... Having an opinion that the collocation of various space geodesy measurement technologies has a fundamental role in increasing the accuracy of fundamental and applied positioning, navigation and timing provision, the International Scientific Technical Conference WPLTN-2012 has come to the following conclusions: 2.1. ...

The SPIcam:Sky Flats script allows you to take a series of twilight or morning flats, automatically increasing or decreasing the exposure time to roughly maintain a constant brightness for the images and dithering the telescope (using a 15" box) between each exposure. If you don't want automatic adjustment of exposure time then please use the normal SPIcam Exposure window, instead. ... nextEveTime = -288 log(e -prevTime/288 + e -(prevTime+45)/288 - 1) - (prevTime+45) . ...

Static Fourier spectrometers are often used for spectral measurements of the ionosphere emissions. There are two main advantages of Fourier spectrometers (FS) - large geometric factor and high spectral resolution; these parameters are two orders better than for grating spectral instruments. ... In scanning Fourier spectrometer optical and electric modulation of signal is used to avoid this problem, for static Fourier spectrometer there are no such ways. ...

sample1d - Resampling of 1-D data sets sample1d infile [ -Fl|a|c ] [ -H [ nrec ] ] [ -I xinc ] [ -M [ flag ] ] [ -N knotfile ] [ -S xstart ] [ -T x - col ] [ -bi [ s ][ n ] ] [ -bo [ s ] ] sample1d reads a multi-column ASCII [or binary] data set from file [or standard input] and resamples the timeseries/profile at locations where the user needs the values. ... Default is the separation between the first and second abcissa point in the infile ] -M Multiple segment file. ... Default is '>']. ...

Solar Wind - Jovian Magnetosphere Coupling Belenkaya E.S., Alexeev I.I. Institute of Nuclear Physics, Moscow State University In spite of the large Jovian dipole moment and strong magnetodisc field, a penetrating solar wind magnetic field of very small strength is still significant for the global magnetospheric field line topology. ... This perturbed plasma stream will modify the usual magnetic field disturbances at Europa inside its Alfven wings. ...

... Marking of frame. Press   on the toolbar; and click necessary stars to mark stars for the measurement. ... If you want to remove a marked star, press ; and click this star. The buttons / serve for decrease/increase of the aperture for last marked star. If it is necessary to measure a visual double (multiple) star; by others to words, if the images of stars interact, mark for measurements all components of the star; press the button  and click all components of the star. ...

... Laboratory . ... webmaster@izmiran.ru . ... e-mail: karp@izmiran.ru . ... DEPENDENCE OF THE MIT SHAPE ON SOLAR ACTIVITY . ... The period considered was characterized by low solar activity (F 10.7 = 70) and increased magnetic activity. ... It follows from data shown in Fig. 9 and obtained by Deminov and Karpachev [1988] for high solar activity that (NmF2) ~ 2x10 4 and 4x10 4 cm -3 for near-midnight hours during local winter at F 10.7 ~ 70 and 200, respectively. ... C) 2007, IZMIRAN ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. May 13, 1996 . Hubble's Constant and The Expanding Universe (I) . ... Explanation: Our Universe is expanding. ... The value of Hubble's constant was recently the subject of a popular public debate titled "The Scale of the Universe 1996: The Value of Hubble's Constant" . Tomorrow's picture: Hubble's Constant and The Expanding Universe (II) . ...

... St Petersburg 23, September 2014 1 Motivation · Origin of Martian moons? ... Considered error sources: ­ Phobos a priori ephemerides; ­ Phobos a priori GM value; ­ measurements noise; ­ different strategies; · Methods: ­ real data analysis; ­ simulations. ... St Petersburg 23, September 2014 8 Simulations: sensitivity of the measurements to the a priori GM value Simulations: zero noise+ IMCCE a priori ephemerides +GMPH = 7.16 * 105 m3/sec2. ... St Petersburg 23, September 2014 14 Thank you! ...

... For the first balloon flight of the Nuclear Compton Telescope (NCT) we have simultaneously reduced lowenergy background and enabled hard X-ray imaging by enshrouding the top of the instrument in a tin shield (bottom had BGO shielding), with part of the shield having strategically placed holes -- a 10% open coded aperture mask working up to 80 keV in conjunction with the finely pixellated double-sided Ge strip detectors. ... Key words: Compton telescope, coded mask, hard X-ray imaging, NCT. ...

. Russian SHAREABLE DATA CENTER . The start of measurements is 16 April 2002 y. at 6:30 UT. Measures N e , T e , T i , V i (line-of-sight) at 100-900 km. Largest decrease in N e - on Apr 20. Increase in T i by ~1000 K. Millstone Hill . Irkutsk . Composition | Objectives | Capabilities and samples | Request for work | Back to main page . If you have any questions, please contact us: esceir@iszf.irk.ru , rp@iszf.irk.ru . http://esceir.iszf.irk.ru/isr/apr2002dataen.htm . Last modification: 28.08.02.

... Moscow S. V. Ajukov THE SOLAR ENVELOPE PARAMETERS AND RADIATIVE OPACITIES IN THE MODELS OF THE PRESENT SUN Comparison of the different opacity tables at the solar core conditions. ... The convection zone depth versus the envelope entropy for the three opacity tables. ... The influence of opacity on the standard solar model parameters Increasing opacities from CS70 up to LAOL (WKM) (both in the core and the radiative zone) raises helium content by 4--5%. ... Solar models with modified opacities . ...

The Earth. ... The middle raiding of the Earth is 6371,032 km, the pole 6356,777 km equatorial - 6378,160 km. The Earth surface area is 510,2 mln km^2, 70,8% of which is the World ocean. ... According to the modern cosmogonical views the Earth was formed 4,6 - 4,7 billions years ago from the protoplanet cloud captured by the Sun. ... The Earth is conditionally divided into 3 parts: a bark a cloak and a core (in the centre). The external layer - the bark is 35 km thick. ... Above the Earth. ...