... material . ... sulfur . ... Coblentz (1904) Phys. Rev. 19, 89 . ... Kurrelmeyer (1927) Phys. Rev. 30, 893 . ... Barnes (1932) Phys. Rev. 39, 562 . cryst. sulfur . ... Phys. 18, 1018 . ... Phys. 21, 219 . ... Phys. 35, 1723 . ... Phys. 37, 1892 . ... Phys. Solids 27, 281 . ... Fuller et al. (1998) in Palik E. (ed) Handbook of Optical Constants of Solids, III. ... FeS 2 . ... FeS, FeS 2 . ... Group VI, 1b, p.242 . ... Palik (1998) in Palik E. (ed) Handbook of Optical Constants of Solids, III. ...

Infrared Detector Array Links . ... Control Software Links . Optics Links . Micro-Optics Links . ... Optical Materials Databases . ... Atmospheric Database Links . Linux Links . ... Rockwell Science Center home page. ... Santa Barbara Research Center home page. ... CCD-World home page. ... SDSU home page. ... EPICS home page. ... Optics Society of America . ... Linux on Laptops ( local site and US home page ). ... Instrumentation Links * Gemini Project Links * Other IR Instruments ...

... Credit Copyright: NASA/CXC/M.Weiss Explanation: Dubbed a Lyman-alpha blob, an enormous cloud of hydrogen gas spans several hundred thousand light-years in this remarkable image (left), a composite of x-ray, optical, and infrared data from space and ground based observatories. ... X-ray data (blue) indicates the presence of a supermassive black hole feeding at the center of an active galaxy embedded in the blob. ... NASA Official: Jay Norris. ... Hubble Remix: Active Galaxy NGC 1275 . ...

... 2009 July 2 . Lyman Alpha Blob . ... Explanation: Dubbed a Lyman-alpha blob, an enormous cloud of hydrogen gas spans several hundred thousand light-years in this remarkable image (left), a composite of x-ray, optical, and infrared data from space and ground based observatories. ... In fact, Lyman-alpha blobs could represent an early phase in galaxy formation where the heating is so great it begins to limit further rapid growth of active galaxies and their supermassive black holes. ... About APOD | ...

. alpha . We have put constraints on the variation of the fine structure constant, $\alpha$, using recent Cosmic Microwave Background, CMB, observations. This study gave rise to the following papers: . Last updated: 2004 August. The astro-ph archive can be searched for an up to date lists of my papers: for au=G. Rocha and ti=alpha which gives an incomplete list, to be completed with au=G. Rocha and ti=fine structure constant . home | research . Graca Rocha Last modified: Mon Aug 9 19:13:00 BST 2004

... Near Infrared Camera and Multi-Object Spectrometer Instrument Handbook for Cycle 17 > Chapter 4: Imaging > 4.1 Filters and Optical Elements . 4.1 Filters and Optical Elements . ... 4.1.2 Out-of-Band Leaks in NICMOS Filters . ... Each camera has 20 filter positions on a single filter wheel: 19 filters and one blank. As a result, not all filters are available in all cameras. ... A trailing letter identifies the filter width, with ? ... Table 4.1: NIC 1 Filters. ... S III] continuum . ...

K.-H. Hofmann, T. Bl cker, G. Weigelt, and Y. Balega: . ... Annual Scientific Meeting of the Astronomische Gesellschaft at the Joint European and National Meeting JENAM 2001 of the European Astronomical Society and the Astronomische Gesellschaft, Sep 10-15, 2001, Munich, Germany . ... CIT 3 (= WX Psc = IRC +10 011 = IRAS 01037+1219), an oxygen-rich long-period variable evolving along the Asymptotic Giant Branch (AGB), is one of the most extreme infrared AGB objects. ... Back to Group Home Page ...

Wide-angle telescopes for photometry and polarimetry in optical and infrared ranges . ... Investigation of the Earth’s atmosphere, comets, interplanetary and interstellar medium with brightness and linear polarization measurements of extended sources and sky background in optical and infrared spectral ranges. ... The devices are small diameter telescopes with CCD-detectors for optical and infrared spectral range with spectral and polarization filters. ... 15-cm telescope with cooling down to 80 K . ...

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The AstroGuide . ... AstroGuide | ... Other Sites . ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . This site is presented by Mitsubishi Electric who built the Subaru telescope. It contains plenty of astronomy information in addition to details about the Subaru telescope. ... Web Site . ... Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Detected Supernovae . The search have produced till now the detections of 4 SNe. ... This result highlights the power of infrared monitoring in detecting Obscured SNe and indicates that optical surveys are probably missing a significant fraction of SNe, especially in obscured systems such as starburst galaxies. ... In Fig. we show the archival SOFI image of NGC3256 (left) and the first image obtained in 2001 (right) where SN2001db has been detected. ...

Next: Infrared Data Up: Contents Previous: Optical Photometry . ... For example, one method is to derive the spectral energy distribution (SED) for a target star and compare it to the SED of a dereddened standard star. ... Temperature can be determine via the B - V color (Gilliland 1985): . ... The results produced small extinctions to the background stars of between A and A . ... The most accurate extinction calculation requires both IR and spectral data. Infrared Data . Spectroscopic Data . ...

Chair of solid state physics . ... Spectroscopy of semiconductors and dielectrics. ... Interband transitions and optical properties of semiconductors. ... Optical properties of metal in a Drude-Lorentz model. Excitons in solids. ... Impurity states in dielectrics and semiconductors. Optical orientation of electron and exciton spins in semiconductors. ... General insight onto interband transitions: electron-radiation interaction, quantum theory of optical transitions in semiconductors. ...

... Top | ... 2 Micron All-Sky Survey . ... Two Degree Field (spectrograph) . ... 3rd Cambridge catalogue of radio sources . ... Anglo-Australian Observatory . ... Anglo-Australian Telescope . ... Astronomical Journal . ... Australia Telescope Compact Array . ... CfA-Arizona Space Telescope LEns Survey . ... European Large Area ISO Survey . ... Gamma-ray Large Area Space Telescope . ... Giant Metre-wave Radio Telescope . ... Large Bright Quasar Survey . ... Milyura International Radio Array . ...

The Cosmic InfraRed Background (CIRB) is the radiation from stars in many faint galaxies. ... The near-infrared (wavelengths near 2-3 microns) and optical (wavelengths near 500 nm) part of this extragalactic background light is just starlight redshifted into the infrared. But some starlight is absorbed by dust and re-emitted in the far-infrared (wavelengths near 100 microns). ... The CMB is by far the largest of these radiation fields, with a total intensity of 996 nW/m 2 /sr. ... Part 2 | ...

INFRARED FOURIER-SPECTROMETER SICH-F . ... Instrument work regimes: 1) Inside. 2) Calibration at inside standard sources 2 - 4 times per a rotation. 3) Calibration at "free space" 2 - 4 times per a rotation. 4) Infrared radiation measuring 10 - 40 min. per a rotation. ... Spectrometer consists of the photodetector block and the block of signal processing and control. ... Diagnostic information and attach data will transfer by state telemetric channels. ... Detector temperature. ...

... News . ... International relations . ... Events IX International forum "Optical systems and technologies" . ... 2nd Thematic Scientific Conference - "New developments of optoelectronic and laser systems for aircraft ." ... Optical and opto -electronic devices and systems : methods of designing, manufacturing , testing, research and certification . Computer simulation of optical and opto -electronic systems . ... Computer modeling and design technology of optical and opto -electronic systems ." ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Meade Series 6000 ED Triplet APO refractors compete head-to-head with the world's premium APOs at a fraction of the cost. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Coronado€о Solar . ... H-Alpha Filters . ... Coronado Accessories . ... Dealer Locator . ...

... Do the Fundamental Constants Change with Time? Astrophysical studies of redshifted spectral lines provide a powerful probe of putative changes in fundamental constants across a large lookback time. ... I will also present the first detections of the 18cm OH satellite lines at cosmological distances, from the z~0.25 source PKS 1413+135 and the z~0.765 gravitational lens towards PMN J0134-0931. ...

... Seminar archive . ... Type Ia Supernovae (SNe Ia) have an important role to measure a distance to an anonymous galaxy because they have a good correlation of the decline rates of the light curves with the absolute luminosity. ... First, super-Chandrasekhar SNe which have extremely high luminosity, slow decline rate of the light curves, slow expansion velocity and strong carbon features. ... As another example of diversity of SNe Ia, I would like also to introduce Type Iax SNe. ... All seminars: . ...