... previous | GPI Data Pipeline 1.0 documentation . ... Observed Effect and Relevant Physics: . ... Image persistence is effect of the observed flux of previous images impacting the following observations as an elevated dark current (see Figure 1). ... Persistence removal is performed using the ?Persistence Removal of previous images? primitive. ... This primitive must not be run on flexure-corrected data as the persistence is derived from the previous image and will not change with elevation. ...

Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Observe Every Photon's Size Experiment . ... Post Message | ... Observe every photon's size experiment . 1.The slow process of the formation of the light diffraction pattern experiment . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Next: Emission-line galaxies Up: The Hamburg/SAO Survey for Previous: Data reduction . In total 217 candidates were observed during the January - June, 1995, of which 34 objects were observed with the 6m telescope, 183 objects with the Calar Alto 2.2m telescope, and 4 with both instruments. ... For 11 of the known ELGs we measure emission line ratios and make quantitative classification. ... Emission-line galaxies . ... Objects without emission lines . Absorption-line galaxies . ...

Next: Rapidly Rotating Stars Up: Discussion Previous: Relations . ... They attributed this to a mechanism which regulated stellar angular momentum through the accretion disk. ... While some of this may be due to sampling effects, the data seem to indicate that after a star loses its disk, either it continues its slow rotation for a period of time and then a rapid increase in rotation rate commences or spin up does not necessarily follow the loss of the disk. ...

Next: The Corotation Radius Up: ``Ecology'' of Magnetic Rotators Previous: The Stopping Radius in . Apparently, the magnetic field of a star becomes significant only when the stopping radius exceeds the radius of the star, . ... Most presently observed NS have magnetic fields  G and dipole moments  G cm , so the magnetic field must necessarily be taken into account when considering interaction of matter with these stars. ... Sat Feb 22 18:38:13 MSK 1997 ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Facilities . ATNF facilities . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

... Abstract: We present Monte Carlo radiative transfer simulations for spiral galaxies modelled as a stellar disk and a two-phase clumpy dust distribution. ... As a general result, clumpy models are less opaque than the corresponding homogeneous models. ... 0.00 0.15 0.50 0.1 0.5 1.0 2.0 5.0 10.0 0.25 X . ... We have also produced several homogeneous models, to compare to the clumpy models. ... Homogeneous and clumpy models with the same tauV have the same dust mass. ...

Modelling the effects of FR II radio jets on the turbulent magnetic fields in the intra-cluster medium Mar tМn Huar te Espinosa , Mar tin Krause, Paul Alexander and Christian R. Kaiser. ... The plasma relaxes for a crossing time (118 Myr) and then we inject mass and x-momentum to a central control cylinder and experiment with the jets power: velociB µG RM maps We calculate RM= 812 dl rad m-2 from the jets' con3 tact discontinuity to the end of the domain along different viewing angles. ...

... Team . ... GRB mini-workshop 2006 . ... Within the framework of a joint observational program (SAO RAS + Instituto de Astrofisica de Andalucia (IAA), Granada, Spain) on August 25 and 27, 2006, a variable optical object (optical transient) OT GRB 050824 was photometrically observed in SAO. ... An optical identification was made in SAO with a CCD photometer of the 1-meter telescope by data of a satellite observatory SWIFT and with the use of optical data of the inernational monitoring of GRBs. ...

... The basic principles of incoherent scatter: . ... Because of the electron movement, spectrum of the observed signal is broad and it has shape which depends, e.g., on the temperature. ... ion temperature . ... According to the theory, Ti should be replaced by (2Ti,perp + Ti,par)/3 (Williams and Jain,1986; Glatthor and Hernandez, 1990; Winser et al., 1990). ... Glatthor, N., and R. Hernandez, Temperature anisotropy of drifting ions in the auroral F-region, observed by EISCAT, J. atmos. terr. ...

Next: M.E. Bailey, Director Up: Research Previous: C.S. Jeffery, Research Astronomer Contents . Dr Michael Smith has focused mainly on the earliest stages of stellar evolution: the processes leading to star formation from an initially unstable, collapsing cloud of gas, and the energetic outflows -- jets and winds -- associated with the formation and early evolution of protostars and pre-main-sequence stellar objects. ... Spectacular jets of molecules, however, betray its presence. ...