... frame sources at the same wavelengths as those used for precision astrometry. ... of high flux density scintillating sources imaged by the USNO astrometry program. ...
Our VLBA survey, now half complete, is not biased with flat-spectrum targets. ... NOAO is operated by AURA, Inc., under a cooperative agreement with the NSF. ...
Title: PowerPoint Presentation Author: Julie A. Rathbun Last modified by: Julie A. Rathbun Created Date: 8/14/2001 6:19:29 PM Document presentation format
Title: Kein Folientitel Author: IS Last modified by: Systems Administrators Created Date: 5/8/2005 5:46:07 PM Document presentation format: On-screen Show
INSTALLING A FRESNEL IMAGER ON A 122 YEARS OLD REFRACTOR ... 700 Fresnel zones (on the diagonal) The Fresnel Imager is attached to the refractor tube in a fully ...
Holographic Imaging. Kolmogorov vs. Gaussian PSF. How to produce a 'core/halo' psf? ... Holographic Imaging (very early stages) Walker, M.A. & Stinebring, D.R. ...
Chandra NASA s Great Observatories an astronomical Mount Rushmore Compton Hubble Spitzer Gains in orbit No atmospheric blurring Wider accessible wavelength ...
How Big is the Lens? How Close did it get? What are They? Follow-Up Monitoring ... GMAN (Global Microlensing Alert Network) MPS (Microlensing Planet Search Project) ...
Radio Interferometry Jeff Kenney Outline of talk Differences between optical & radio interferometry Basics of radio interferometry Connected interferometers & VLBI ...
The imaging doublet is mounted on XY piezo translator, driven ... on this image) Imaging doublet. TO BE TESTED ON SKY. C1. Thank you. for your attention ! ...
... to measure motion of celestial bodies with extreme precision (microarcseconds) ... Darwin mission will aim at detecting and characterising habitable exo-planets. ...
Accretion onto the SMBH releases electromagnetic radiations creates quasars and AGN ... undergoing inefficient accretion ... out of plane of accretion disk ...
Rigel. T=20,000 K. Classification of Stars Through Spectroscopy ... Rigel. Vega, Sirius. Sun. Betelgeuse. Further subdivision: BO - B9, GO - G9, etc. GO hotter ...
Radio Astronomy an exciting science. May 2004. A. Tzioumis. 3. Oz ... Radio Astronomy is an exciting science - many 'weird and wonderful' objects. May 2004 ...
Collaborators: Alberto Bolatto (UMD), Eric Ford (UFL) ... Taurus Cluster Distance. D=141.5 2.7 -2.8 pc. Loinard et al 2005. Planets are Easy to Detect ...
... of Sgr A* Constraints on the size of Sgr A* M31 A large BH in M31 Active galactic nuclei and quasars Quasars spectra ... BH interpretation ... UV) . flat ...
Three arrays in one: NMA VLA: more than just dots ... Galactic chimney GSH277 0 36. Michael Rupen. EVLA Phase II Definition Meeting. Aug 23 25, 2001. ...
Many nifty targeted, special-interest surveys. Canadian Galactic Plane Survey (CGPS) ... Archive reports BW, time on source, and theoretical rms noise (what you could ...
bright enough for low photon shot noise. numerous enough so that a ... Calculated the expected sensor position errors vs magnitude and integration time ...
The International Celestial Reference Frame ... is illustrated by the light curves shown in Fig 1. Fig 1: Light curves of IDV/ISS sources with timescales ...
Continuing VLA and VLBA Observations of the SiO Masers in V838 Monocerotis ... star is not thought to be a late-type giant or supergiant, the spectrum of ...
At grazing angles, mirrors that are diffraction limited at UV are also ... The mirrors and their associated thermal control are not a tremendous leap away. ...
Wide range of frequency bands, 0.3-86 GHz, frequency agility ... Nearby, low-luminosity AGNs may be a GLAST 'sleeper' Mrk 421, 501. M87, N4151. Nearby GRBs? ...
Found in several different places in the universe: Star-forming regions. Circumstellar shells around late-type stars. Active Galactic Nucleii. Supernova Remnants ...
NASA's Great Observatories 'an astronomical Mount Rushmore' Spitzer. Chandra. Compton ... Hubble constant from Cepheid variable stars. Black holes in (almost ...
Right now, EGRET data (and more) can be described by scenarios with and without DM ... Explains EGRET data with a photon component from neutralino annihilation ...
the only way for astronomers to investigate the universe. Properties ... Angles are being measured in degrees, arcminutes (degree/60) and arcseconds (arcmin/60) ...
Variable SiO Masers in the Circumstellar Environment of V838 Monocerotis ... star is not thought to be a late-type giant or supergiant, the spectrum of ...
Understand the ultimate endpoint of matter. ... To explore the ultimate limits of gravity and energy in the universe. Make a 'movie' of a black hole, its ...
The EVLA Project is leveraged upon the considerable existing infrastructure of the VLA. It is a very cost-effective project, particularly in terms of operations: 10 ...
The ALMA Software System. Joseph Schwarz (ESO), Allen Farris (NRAO), Heiko Sommer (ESO) ... P1.28, Dynamic Schedulingt in ALMA, A. Farris & S. Roberts ...
Sub-AU imaging at Taurus. Thermal outflows: ubiquitous & essential part of star formation ... Good imaging characteristics. Site locations near existing fiber, ...