... material . ... Tool (1910) Phys.Rev. 31, 1 . ... e 1,2 [fig] . ... Clemens, Jaumann (1963) Z.Physik 173, 135. cryst. ... Yolken, Kruger (1965) J.Opt.Soc.Am. ... Lenham, Treherne (1966) J.Opt.Soc.Am. ... cryst. ... refl. [fig] . ... Blodgett, Spicer (1967) Phys.Rev. 158, 514 . ... abs. [fig] . ... 1979) Phys.Rev. B19, 3850. cryst. ... Lynch, Hunter (1991) in Palik E. (ed) Handbook of Optical Constants of Solids, II. ... Lynch, Hunter (1998) in Palik E. (ed) Handbook of Optical Constants of Solids,...

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 | ...

... Infrared astronomy . ... Online resources . ... 1995 - . ... 1996 - . ... The Astronomical Journal . ... 1849 - 1997(ADS) . ... 1989 - 2013 . ... The Astrophysical Journal . ... The Astrophysical Journal Letters . ... The Astrophysical Journal Supplement Series . ... Communicating Astronomy with the Public (CAP) Journal . ... Journal for the History of Astronomy . ... Journal Geophysical Research A : Space Physics . ... Linux Journal ** For online access, please contact the Library . ... 1996 - 2013...

. 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 > Appendix B: Flux Units andLine Lists > B.1 Infrared Flux Units . B.1 Infrared Flux Units . ... In recent years, however, magnitude systems have been used less frequently, and the most popular unit for expressing brightnesses, both for point source fluxes and surface brightnesses, is steadily becoming the Jansky. ...

Q: Are the magnitudes in the ETCs AB or Vega magnitudes? ... Q: How is the signal to noise defined? A: In optical and infrared imaging, the applications display a signal to noise over the PSF area, which is computed in a circle of radius seeing/plate_scale. ... In optical imaging only, a second signal to noise is computed which is the signal to noise at the central pixel. ... A: The template spectra stored in the database are measured or simulated spectra covering different wavelength range. ...

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 ...