... Interstellar features seen in spectra of HD23180 (upper frame) and spectra of heavily reddened stars (lowest frame). Other frames (as described on the right) show the synthetic spectrum for HD23180 and the average spectrum for all of the reddened stars after alignment on the interstellar atomic lines. ... Solid arrows are DIB known from other surveys, dotted arrows in later figures and the new DIB found in this survey. ... Download average spectrum of reddened stars . ...

... Laboratory and theoretical modelling of the UV bump on the interstellar extinction curve is a very popular topic in dusty investigations. ... feature is illustrated by Fig. 10 where the profiles were calculated using the model of graphite spheres. Figure 10: Normalized extinction efficiencies for graphite spheres. ... The lower panel shows the summary extinction of two graphite spheres with radii and (from upper panel) taken in equal proportions. ...

Next: System Controlled Functions Up: Domain Selection Previous: Abstract Towers . The user of the system has control over a variety of the features used in designing a tower. ... These include the weight that the tower must support, the time needed to construct the tower, and the importance of minimizing cost (which can affect some choices of material, etc). ... This choice affects how the tower will ultimately look. ... The user selects the order in which components are added to the design. ...

Next: Analysis Tools for Nebular Emission Lines . ... Extracting spectra from a large number of NICMOS grism images requires a convenient interactive tool which allows a user to manipulate direct/grism image pairs. ... The direct image is used to locate objects of interest, to find the position of the appropriate spectra in the grism image, to determine the optimal extraction technique to use, and to calibrate the wavelength range of the extracted spectra. ... Figure 1: The NICMOSlook User Interface . ...

Next: Principle of the Up: Inter-stellar/galactic Absorption Line Previous: Inter-stellar/galactic Absorption Line . The program described here is a general code for modelling interstellar or intergalactic absorption features on an initial polynomial continuum which may also contain emission lines. For each absorption line the input parameters are : atomic transition, column density, thermal width and position (velocity shift). ... Tue Mar 28 16:52:29 MET DST 1995 ...

Joshua Tusin, Director of Public Relations for JYI , sent us the following description of the journal. ... Feature Editors . ... Inquire with the Director of Public Relations, Joshua Tusin, by e-mailing him at: tusin@jyi.org . The Journal of Young Investigators ( JYI , www.jyi.org) is an on-line science journal dedicated to publishing excellent undergraduate research papers and feature-type science articles covering all fields of science. ... Journal of Young Investigators (http://www.jyi.org) . ...

Contents] [Prev page] [Next page] [Index] . Navigator 4 from Netscape, which is part of the Communicator product suite, includes three new areas of functionality that taken together give you Dynamic HTML. The three components of Dynamic HTML are style sheets, content positioning, and downloadable fonts. Used together, these three components give you greater control over the appearance, layout, and behavior of your web pages. ... Introducing Downloadable Fonts . ...

... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... ESO . ... Survey Telescopes . ... ESO Supernova . ... Star Clusters . ... Stars@ESO . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... ESO 1-metre Schmidt telescope . ... Future Projects . ... This NASA/ESA Hubble Space Telescope image shows the positions of the past, present and predicted future appearances of the Refsdal supernova behind the galaxy cluster€а MACS J1149+2223 . ...

Instructional Videos - ETX-60 & ETX-80 Backpack Observatory . ... The Backpack . WMV . ... About Meade | ... Meade Universe | ... Copyright 2006 Meade Instruments Corporation, All Rights Reserved . ...

... These so called Out-of-Time (OoT) events gets a wrong RAWY value assigned, and thus eventually a wrong energy correction. ... generate an image from the OoT event list evselect table=PiiiiiijjkkPNblllOOEVLInmmm.FIT imagebinning=binSize imageset=PN_OoT_image.fits withimageset=yes \ xcolumn=X ycolumn=Y ximagebinsize=80 yimagebinsize=80 . ... change the name of the COUNTS column in the OoT event spectrum to CTS_OOT . ... copy the CTS_OOT column of the OoT event spectrum into the source spectrum . ...

This document describes how number input can be given to tasks which request numbers from Hermes. ... list selection The following constants are implemented: pi 3.14159.... c speed of light (SI) h Planck (SI) k Boltzmann (SI) g gravitation (SI) s Stefan-Boltzman (SI) m mass of sun (SI) p parsec (SI) BLANK Universal undefined value The following mathematical functions are implemented: abs(x) absolute value of x sqrt(x) square root of x sin(x) sine of x asin(x) inverse sine ...

Next: Imaging Polarimetry with NICMOS Up: NICMOS Data Calibration and Previous: The Photometric Performance of . ... NICMOSlook and Calnic C . ... Extracting spectra from a large number of NICMOS grism images requires a convenient interactive tool which allows a user to manipulate direct/grism image pairs. ... NICMOSlook and Calnic-C are two programs that were designed to take advantage of the fact that the NICMOS grism mode typically consists of taking both a direct and a grism image. ...

... Chapter 2 Values, Variables, and Literals This chapter discusses values that JavaScript recognizes and describes the fundamental building blocks of JavaScript expressions: variables and literals. ... In JavaScript, regular expressions are also objects. ... This chapter describes JavaScript regular expressions. ... This chapter provides an overview of these statements. ... Chapter 8 Details of the Object Model JavaScript is an object-based language based on prototypes, rather than being class-based. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2005 July 13 . Analemma of the Moon . ... So, if you photograph the Moon 51 minutes later on successive days, over one lunation or lunar month it will trace out an analemma-like curve as the actual position of the Moon wanders compared to the average -- due to the Moon's tilted and elliptical orbit. ... About APOD | ...

Next: Library, Archive and Historic Up: Buildings, Grounds, Library and Previous: Disposal of the Schmidt . Mark Bailey, Apostolos Christou and David Asher have developed ideas for a new outdoor exhibit in the Observatory grounds, called `The Human Orrery'. ... The position of the proposed new Library, Archive and Historic Scientific Instruments building is shown in outline. ... Next: Library, Archive and Historic Up: Buildings, Grounds, Library and Previous: Disposal of the Schmidt M.E. Bailey . ...

... Tonight's Sky . ... Mars . ... Home . ... Observing . ... Mars orbiter repositioned to phone home Mars landing . ... Two other Mars orbiters, NASAт??s Mars Reconnaissance Orbiter and the European Space Agencyт??s Mars Express, also will be in position to receive radio transmissions from MSL during its descent. ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

Viewing contents of file ;'/net/www/deutsch/idl/idllib/iuedac/iuelib/pro/baserem.pro' ; ;************************************************************************ ;+ ;*NAME: ; ; BASEREM 30 SEPTEMBER 1980 ; ;*CLASS: ; ;*CATEGORY: ; ;*PURPOSE: ; ; To fit a polynomial of order NDEG to a user-specified ; spectral region for removing a baseline from a spectral feature. CALLING SEQUENCE: ; ; BASEREM,X,Y,NDEG,XL,XR,A,YBF,CHIS ; ;*PARAMETERS: ; ; X (REQ) (I) (1) (I L F D) ; Array of independent variables. ...

... 237S (SIMBAD/NED BibCode) ================================================================================ Keywords: Sun: UV radiation - atmospheric effects - Sun: atmosphere - lines: identification Description: An ultraviolet atlas of the solar spectrum with a spectral resolution of 15mA in the region 1948-2000A is presented. ... The wavelength atlas with a list of about 550 lines has been synthesized from data at center of the Sun ({mu}=1) and at {mu}=0.89, smoothed out over an area of 30 arcsec. ...

There is some interest concerning whether or not the Mars Global Surveyor Orbiter Camera (MOC) will observe the "Face on Mars" and other features in the Cydonia region on Mars. ... For those not familiar with the topic, several Viking images show features on the surface of Mars that, in the eyes of some people, resemble "faces," "pyramids," and other such "artifacts." ... But nothing can be done about the orbit spacing or the pointing control or the width of the MOC field of view. ... Mars Face . ...

Astronomy Picture of the Day . A Face On Mars . ... 6.04.1998 . ... Credit: The Viking Project , NASA Explanation: This image, showing what looks to be a human face (above center) and other features of the Cydonia region on the Martian surface , was produced using data from NASA's Viking 1 orbiter in 1976. ... April . ... April 1998 . ... 1997 1998 . ... NASA Official: Jay Norris. ... Publications with keywords: Mars - face - surface . Publications with words: Mars - face - surface . ...