... The Galaxy and the Quasar . ... The Lagoon Nebula in Three Colors . ... The bright Lagoon Nebula is home to a diverse array of astronomical objects. Particularly interesting sources include a bright open cluster of stars and several energetic star-forming regions. ... X Ray Cygnus A . ... Amazingly detailed, this false-color x-ray image is centered on the galaxy Cygnus A. Recorded by the orbiting Chandra Observatory, Cygnus A is seen here as a spectacular high energy x-ray source. ...

... a) As source material for the high-school or college curriculum, especially in physics. astronomy and their history. (b) As a source of supplemental projects by high school students or by undergraduates. (c) As material for independent studies, In particular by motivated students who seek to know more about space . ... Those wishing to look up specific topics are advised to use the index file, accessible from the end of any "Exploration" file. ... files not listed and at other resource material. ...

... noise (a/d rms=43 counts) , and noise (43 counts) + sine waves (31 + 35MHz) with a/d rms=150 counts. ... Dana's noise source with a -4db sine wave at 31MHz and 35 MHz. ... Page 1: dana's noise source with A/D rms of 43 noise counts + sine waves of 31 and 35 MHz (which are digitally mixed to 1,5 MHz). ... The rms of the output data was 1274 counts (with an output shift enable of 7). the top plot is linear while the bottom plot has a db scale. ... Page 4: danas noise source with A/D rms of 43 counts. ...

... For us to see them from such great distances, quasars must be producing enormous energy -- they are about 1000 times brighter than an average galaxy! ... One of their choices for the energy source of quasars was a black hole. ... On the one hand, it may seem difficult to think that mere friction between bits of matter could account for the energy of a quasar, but, on the other hand, gravity is unimaginably strong near a black hole. ... How does matter actually rush towards the black hole? ...

... Pre-university education . ... The NEICON consortium provides free test access to three platforms of electronic resources of McGraw-Hill Education company: . ... ACCESS ENGINEERING (www.accessengineeringlibrary.com ) is the largest platform in the area of technology and engineering science. It contains over 250 key items as well as interactive graphs, tables and video materials. ... ACCESS MEDICINE (www.accessmedicine.com) is the basic medicinal platform of McGraw-Hill Education. ...

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: . ...

. Comment on J1239-1023 . No image is shown by Dallacasa et al. (1998) as they did not find the VLBI structure at 2.3 and 8.4 GHz prominent, just dominated by a compact region barely resolved in position angle about -45 . In our case the source is well resolved, with a jet pointing to the W-NW direction, in agreement with what is seen in the images at 2.3 and 8.4 GHz from the VLBA Calibrators database. VLBApls home page . Last modified: 16 Oct 2000

The NICFPS:Dither:Point Source Random script allows you to take a sequence of exposures in a square pattern plus a point in the middle. This pattern is typically used for point sources. ... Any dither point may be omitted by unchecking its checkbox before running the script. ... Dither pattern without randomization . ... Randomization 1. ... Dither pattern with randomization Thanks to Corey Wood for the first implementation of randomization and for the images used in the documentation. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Quasi-stationary electron distributions for the different values of the particle escape time. ... The electron-cyclotron maser instability is widespread in the Universe, producing, e.g., radio emission of the magnetized planets and cool substellar objects. ... The model used takes into account the radiation escape from the source region and the particle flow through this region. ...

. The Source Code Control System is an essential tool for any project with multiple source files or which has several people working with multiple source files. It provides a way to keep track of a source file's development and to prevent it from being altered by more than one person at a time. Putting files under SCCS control . Checking out files . Checking in files . Getting information about files . Creating new releases . Comparing files under SCCS control .

In the regular experiments carried out with the RAS radio telescopes at Pushchino during 1999-2002, the study of the radial dependence of scattering of compact natural radio sources was extended to remote regions of the solar plasma environment. ... The stream in the transalfvenic region displays the same typical radial structure as observed in the transonic region, i.e., the existence of a "precursor" - a narrow band of reduced scattering preceding a wide region of enhanced scattering. ...

ПУБЛИКАЦИИ - 1993 год . ... Annales Geophyscal, - 1993, - v. 11. ... Radio observations of compact solar sources located between sunspots. Solar Physics, 144 (1993), - c. 59-68. ... Kardapolova N.N. The dection of the S -componenten sunspot source in the initial stage of active region development Annales Geophysicacal. - 1993. - vol.11. ... Fine coronal structure of solar active regions from multi-frequency microwave observations of the July 11, 1991, solar rclipse in Mexico. ... 144. ...

In calculating the NIFS sensitivity, we adopt a read noise of 5 e - , a dark current of 0.01 e - s -1 pix -1 , and a maximum exposure time of 3600 s. Grating . ... e/pix) . ... OH Cont. (e/pix) . ... NIFS should achieve signal-to-noise ratios of ~ 10 per spectral pixel in a 0.1" 0.1" aperture for single 1800 s exposures on uniform, extended, continuum sources with surface brightnesses of J = 15.4, J = 15.0, H = 14.8, and K = 13.5 mag arcsec -2 using the Z , J , H , and K gratings, respectively. ...

... Polar 2013 - . Polar Geophysics of Yamal: Observations, instruments, data bases . ... Nadym, October 21-25, 2013, RUSSIA . ... The program of the POLAR-2013 conference in Nadym will be devoted to following topics: . ... The International Conference ?Polar Geophysics of Yamal? is jointly organized by the Government of Yamal Region, The IZMIRAN (Troitsk), The Geophysical Center of RAS (Moscow), The Institute of Applied Geophysics (Moscow), The Arctic and Antarctic Research Institute (St.Petersburg). ...

... The RAS Meteorite Collection: State on the 1 st of June, 1999 . ... About the laboratory . ... Find 1749. One mass of 687 kg . ... Fall 09 February 1929. 11 masses totaling 3738 g, the largest is 2128 g . ... Chondrite . ... Find 1986. 3 masses totaling about 25 kg . ... Fall 24 March 1933. 75 masses totaling 3-4 kg . ... Fall 29 July 1935. 5 masses totaling 37.35 kg, the largest is 23 kg . ... Fall 23 May 1938. 4 masses totaling 127.5 g . ... Fall 02 October 1933. 10 masses totaling 3.4 kg . ...

. Logon . Home . About ATMoB . Library . Events . Gallery . Members . Presented by Charlie McDonald and John Reed. Pictures used with permission from the Reading Daily Times Chronicle/Joe Hakey. John Reed with Birch Meadow School student look at the sun through a special filtered telescope during a visit to the school recently. Birch Meadow students hold a piece of a meteor found in a crater in Arizona. In back are (l-r) John Reed, Charlie McDonald, and teacher Carol Wertheim.

... Tonight's Sky . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... January 2006 resources . FROM THE January 2006 ISSUE . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

... 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 . ...

. Source: . Zolotarev V.M. (1970) . Optical constants of ice I in a wide infrared spectral region. Optika Spektrosc., v. 29, pp. 1125 - 1128. Optical constants: . hexagonal ice Some details: . A compilation of the optical constants obtained in several papers for hexagonal ice is made using the Kramers-Kronig method The spectral range considered is from 4000 to 40 cm -1 . Back to ice page . Last modified: 11/10/98, V.I.

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