We observed the reflection nebula NGC 7023, with the Short-High module and the long-slit Short-Low and Long-Low modules of the Infrared Spectrograph on the Spitzer Space Telescope. We also present Infrared Array Camera (IRAC) and Multiband Imaging Photometer for Spitzer (MIPS) images of NGC 7023 at 3.6, 4.5, 8.0, and 24 ЮМm. We observe the aromatic emission features (AEFs) at 6.2, 7.7, 8.6, 11.3, and 12.7 ЮМm, plus a wealth of weaker features. ... ADS Citation Query . citations = 112 . ...

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• Physical Conditions in the Ionized Gas of 30 Doradus
• Abstract
• Quasar Spectral Features at Intermediate Redshift

... A2153 Date Received: 2005 -Oct-03 07:22:54 Technical Page Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Galactic 39 Hours Faint HI 21-cm Emission Line Wings at Forbidden Velocities Large-scale (l,v) diagrams of HI 21-cm line emission in the Galactic plane show small high-velocity bumps protruding from their surroundings. ... They are all the FVWs that is available at Arecibo but not observed yet. ...

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• http://www.naic.edu/vscience/schedule/tpfiles/KangtagA2153tp.ps
• http://www.naic.edu/vscience/schedule/tpfiles/HowelltagA2612tp.pdf
• http://www.naic.edu/vscience/schedule/tpfiles/BennertagR1666tp.ps

... Bojan Nikolic web pages (r. 329) . ... We present a Bayesian approach to calculating the coefficients that convert the outputs of ALMA 183 GHz water-vapour radiometers into estimates of path fluctuations that can be used to correct the observed interferometric visibilities. ... Inference of Coefficients for Use in Phase Correction . ... Simulating Atmospheric Phase Errors, Phase Correction and the Impact on ALMA Science . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

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• CO in NGC 1530, aperture synthesis of a barred spiral
• Abstract
• VLBI observations of the quasar 3C380

... Here some data observed on the 6m telescope with IFP installed in the OLD focal reducer are presented. ... Mkn 3: velocity field . ... NGC 5252: [OIII] image . ... NGC 5252 was observed 23 Feb. 1998 in the [OIII]5007 emission line with CCD TK1024 as detector. ... We observed the ionized gas velocity fields of the spiral galaxies with two purpose. ... Restored velocity field of NGC 157 in the reference frame rotating with the pattern speed overlaid on the Ha image of the galaxy . ... NGC 4100 . ...

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• Emission molecular bands
• Structure and properties of IRC+10216
• Absorption bands identified with DIBs

Next: NICMOS/HST H-band (F160W) Images Up: NICMOS Science Previous: HST NICMOS Observations of . ... Observations of P . ... The NICMOS team has devised a comprehensive program of observations of the Galactic Center. ... Data in hand give a first look at variability and a detailed look at the search for the tip of the main sequence will be discussed where NICMOS has demonstrated adequate sensitivity and photometric precision to identify likely O8-B1 stars at the Galactic Center. ...

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• ST-ECF Grism Spectrum Software for NICMOS Grism Data

We model the spectral chanages of late oxygen-rich Miras observed in different pulsation phases. From a combination of variable near-IR spectra and UKIRT spectrophotometry of the 9.7 \mu m silicate dust emission feature in different phases we study the influence of the changing atmospherical circumstances on the conditions in the circumstellar dust shell. ... A comparision with the modelling results for another long period Mira U Ori is also provided. ...

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• Broadening of Si VIII lines observed in the Solar polar coronal holes
• Armagh Observatory
• Blinkers and TREEs

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ... IAU XXV General Assembly | ...

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• Programme - Abstract
• Source size measurement from observed quasar microlensing
• PPTA Wiki | Observing / RFI

... Up: Data Analysis and Processing Techniques . ... Also, a method for quality control of CCD observations is suggested. ... Everyone who observes a celestial object using a CCD detects moving celestial objects as a ``by product''. ... We hope that our investigations may be useful for near-Earth space control and also for searches of the moving celestial objects through analysis of old and new CCD frames obtained at any amateur or professional astronomical observatory. ...

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• Wavelength Calibration at Moderately High Resolution
• NICMOSlook and Calnic C: Slitless Spectra Extraction Tools
• SVDFIT: An IRAF Task for Eigenvector Sky Subtraction

... Tonight's Sky . ... Observing . ... Sky this Month . ... The Sky This Week: April 1 - 10 . ... Sky this Week . Observing Podcasts . ... Astronomy for Kids . ... Imaging Basics . ... Observing springtime deep-sky objects with a large telescope . Springtime observing for small telescopes . ... Seasonal Observing . ... Observing Basics . ... Cassini Imaging Central Lab, Boulder, Colorado . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• How do astronomers determine the ages of stars? | Astronomy.com
• Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets,
• Globular central | Astronomy.com

... Science . ... Data Handling and Products > Data Reduction FAQ > My MR+GG475 data show strong absorption features below 6000A. Where do they come from and how can I correct them? ... Observing with ESO Telescopes . ... Science Data Products Forum . ... The absorption comes from impurities in the GG475 filters and the first and third quadrant are most strongly affected (see plot - the black curve shows the spectrum of a featureless star observed in Q1, the green shows the same star observed in Q3). ...

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• ESO - A number of OmegaCAM filters show vignetting in their central regions.
• ESO - The response curve leaves residual instrument features in my science.
• ESO - My data shows an extended, bright feature - what can this be?

... 67Lawrence+ Of the 3118 sources in the Arecibo 611 MHz survey, 2911 have been observed using the NRAO 300 ft transit telescope at 6 cm. ... 4 Mean 1950 RA (see col.3.) ... 6 Mean 1950 Decl. (see col.3.). if A appears in col.1, the Arecibo dec. is listed. 7 Dec error in arc seconds (see col.3.) ... 16 Number of observations, in the form abc, where a is the number of observations averaged in RA, b is the number of observations averaged Dec, c is the number of observations averaged in flux. ...

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• Summary and conclusions
• The Hamburg/SAO Survey for Emission-Line Galaxies
• Summary of the parameters handled by the user:

... 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. ...

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• Wavelength dependence
• Footnotes
• Silicate minerals

... Magnetic resonant mode in the single-layer high-temperature superconductor Tl 2 Ba 2 CuO 6+x. Abstract: . ... The mode has thus far only been observed in materials with crystal structures consisting of copper oxide bilayers, and it is absent in the single-layer compound La 2-x Sr x CuO 4+x . ... This restricts the theoretical models for the origin of the resonant mode and its role in the mechanism of high temperature superconductivity. ...

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• ЛСПП - Фотогалерея - Subatomic resolution on Cu(014)-O
• LSSS - Photogallery - Subatomic resolution on Cu(014)-O
• LPCBC: Abstract 2_25

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The?аAmateur Astronomers Association of New York?аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

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• Central Park ? Solar Observing ? Amateur Astronomers Association of New York
• Solar Observing, Grand Army Plaza, Brooklyn ? Amateur Astronomers Association
• AAA Urban Starfest in Central Park ? Amateur Astronomers Association of New...

... THE DETERMINATION OF THE 'DIFFUSION COEFFICIENTS' AND . THE STELLAR WIND VELOCITIES FOR X-RAY BINARIES. ... 13, Moscow, Russia . ... In this work using the observed period changes for four systems: Vela X-1, GX 301-2, Her X-1 and Cen X-3 we determined D , the 'diffusion coefficient',-parameter from the Fokker-Planck equation. Using strong dependence of D on the velocity for Vela X-1 and GX 301-2, systems accreting from a stellar wind, we determined the stellar wind velocity. ...

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• Effect of sources evolution on
• Introduction
• ADS Abstract Service Results

Marc White . ... Turbulent entrainment processes may play an important role in the outflows from young stellar objects at all stages of their evolution. In particular, lateral entrainment of ambient material by high-velocity, well-collimated protostellar jets may be the cause of the multiple emission-line velocity components observed in the microjet-scale outflows driven by classical T Tauri stars. ... University of Amsterdam; STARPLAN, Copenhagen, Jul 2013 . ... E marc.white@anu.edu.au . ...

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• Towards a Truly Unified Model of AGN
• COALA - Sharon Rapoport
• The Spinning Sun

. Fig. 1. The modified Nobeyama radio heliograms (a,c) of May 11-13, 1993 at 17 GHz showing a transequatorial microwave chain 1-2-3-4 coinciding in its central part with the boundary of the soft X-ray coronal hole observed with Yohkoh/SXT (b,d). Back to paper .

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• Space weather and ecology
• Oct-Nov 2003: CORONAS-F/SPIRIT and SOHO/EIT Data
• SINGULAR POINTS IN THE SOLAR CHROMOSPHERE

True Color Image Gallery: Galactic SNR | ... Distance: 60kpc(distance to SMC, Westerlund(1990) ) . ... Exposure uf . ... Exposure uf Exposure time of unfiltered event file . Exposure f Exposure time of filtered event file . ... J0047.2-7308 superimposed on larger remnant, J0047.5-7308 . ... AUX file . ... 0.3 - 10.0 . ... N H = 0.3(10 22 cm -2 ) Assumed distance: 60kpc (distance to SMC, Westerlund(1990) ) . see fit detail page for more about the fit. see chandra spectrum page for region used. ...

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• The AstroStat Slog Blog Archive Bayesian machine learning workshop, featuring
• Chandra Images for SNR J0047.5-7307
• activities

These are very prominent absorption lines is most all galaxies. ... These pair of absorption lines will appear in all the spectra and they should be your principle source for determining the redshift. ... When this applet opens you will see an iconic representation of galaxies in the left hand side of the applet and a target area in the right side of the applet. ... Note: What you are doing in this excercise is identical to what Hubble did in the 1920's and you are using the same galaxies. ...

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• U of O High Energy Physics Seminars
• Power Spectrum of Galaxies
• Astro-2 and the UIT Experiment

Geophysical Research Abstracts Volumi 3, 2001 . ... The observable lunar region was a seismic active region (30W, 5S). ... arcminutes long trip on the lunar surface in direction to Mare Serentatis. ... 23 Moon's phase angles and 1954 lunar regions. ... basin are compared to craters located in highland and mare regions. ... morphology of craters in the mare region is found to differ drastically from those in . ... and craters with faults in the mare region are due to lava flooding of ancient . ...

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• Родионова Жанна Федоровна
• Morphological Catalogue Of The Craters Of Mars