WFC3 Instrument Handbook for Cycle 24 . ... Wide Field Camera 3 Instrument Handbook for Cycle 24 > Appendix A: WFC3 Filter Throughputs > A.2 Throughputs and S/N Ratio Data . ... Note that the plots show the S/N as a function of source magnitude for exposure times as short as 0.1 s, although the minimum exposure time for the UVIS channel is actually 0.5 s. Wide Field Camera 3 Instrument Handbook for Cycle 24 > Appendix A: WFC3 Filter Throughputs > A.2 Throughputs and S/N Ratio Data . ...

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K-band Arcetri Obscured Supernova Search . What is the KAOSS Project? W hat is the KAOSS Project? Some recent surveys aimed at detecting Supernovae (SNe) in the optical have found that starburst galaxies do not show evidence for an enhanced SN rate, with respect to quiescent galaxies (Richmond et al. ... A similar result was obtained by Navasardyan et al. (2001) who looked for SNe in interacting galaxies, finding no evidence for correlations between SN rate and galaxy properties. ...

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... XMM-Newton SOC Home Page Conferences & Meetings . ... Data Analysis SAS News What is SAS? How to use SAS SAS Workshops SAS Version Changes Download and Install SAS Science Simulator (SciSim) . ... EPIC cameras optical loading . ... The PI is invited to cross-check the expected X-ray flux from the target source (and from any other potentially bright source in the target field of view), or to provide the SOC with her/his own estimate, if not originally specified in the proposal. ...

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... Unexpected X-rays from Comet Hyakutake . ... 11.04.1996 . ... Credit: C. Lisse, M. Mumma (NASA/GSFC), K. Dennerl, J. Schmidt, and J. Englhauser (MPE) Explanation: The first X-rays ever detected from a comet were discovered from Comet Hyakutake with the ROSAT satellite on March 27th. ... Information: The Scale of the Universe Debate in April 1996 . ... March . ... Publications with keywords: comet - comet Hyakutake . Publications with words: comet - comet Hyakutake . ... Comet Holmes Over Hungary . ...

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... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. April 11, 1996 . Unexpected X-rays from Comet Hyakutake . Credit: C. Lisse, M. Mumma (NASA/GSFC), K. Dennerl, J. Schmidt, and J. Englhauser (MPE) . Explanation: The first X-rays ever detected from a comet were discovered from Comet Hyakutake with the ROSAT satellite on March 27th. ... About APOD | ... A service of: LHEA at NASA / GSFC . ...

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... 314 Astronomical Data Analysis Software and Systems XIII, eds. F. Ochsenbein, M. Allen, & D. Egret (San Francisco: ASP), 812 . ... Abstract: The calculation of flux upper limits in the source-free ("background") regions of photon-limited images is complicated by instrumental and statistical modeling and requires non-trivial computational effort. ... The principal component in this is the time taken to pre-process and handle the 30 GB of RASS data rather than the calculation of each upper limit. ...

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Proposal Identification No.: ... Proposal Type: General Category: Observation Category: Time Requested this semester: Hours Next Semester: Hours already used for this pro ject : Additional Hours required to complete pro ject : Minimum Useful Time : Expected Data Storage: Prop osal Title: ABSTRACT: Large Pulsars Extragalactic 185 185 680 1500 1.5 hours less than 100 GB The North American Nanohertz Observatory for Gravitational Waves Direct detection of gravitational ...

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From limits to detection of a gravitational wave signal George Hobbs ATNF PPTA team. ... Jenet et al. 2005 Must look for correlated residuals Need ~20 pulsars, observed of ~5 years with rms timing residuals ~100ns Gravitational wave detection Basic ideas Jenet et al. ... 2006 New limit technique (Bill's talk) Improve timing residuals Bayesian Detection technique Gravitational wave detection A Bayesian technique for detecting gravitational waves · Work carried out by Y. Levin and R. van Haasteren. ...

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... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > I see unexpected boxy emission-like features in my REDL spectra - where do they come from? ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... The pipeline by default interpolates across the bad columns in the REDL CCD when it creates the master bias, but does not so when it processes the science data. This inconsistency can create boxy emission-like features as seen in the figure below. ...

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ARCSAT ID NUMBER: AS01 DESCRIPTIVE TITLE: Stromgren Photometry of Galactic Streams PI: Dmitry Bizyaev OBSERVER(S): Dmitry Bizyaev UNCERTIFIED/UNTRAINED OBSERVERS: N/A COLLABORATORS: CONTACT INFORMATION: dmbiz @ apo.nmsu.edu TIME REQUESTED: 3 weeks in the dark time between May and October 2014 The preferred time slots (based on Mon - Sun basis) are: May 5 - 11 June 2-8 September 22 - 28 INSTRUMENT: SurveyCam FILTERS : ... The standard Stromgren set is available at APO. ... 2014). ...

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... PROBLEMS: "Unknown" (i.e. no physics model) components; What's a "Good-Enough-Fit" (e.g. Poisson)? ... ASIDE: MULTI-SCALE FOR POISSON - called Multiplicative Multiscale Innovation Models MMI Slides courtesy of R.Willett, SAMSI 2006 Timmermann Nowak, 1999 Kolaczyk, 1999 ASIDE: MULTI-SCALE FOR POISSON - called Multiplicative Multiscale Innovation Models MMI Slides courtesy of R.Willett, SAMSI 2006 Timmermann Nowak, 1999 Kolaczyk, 1999 ASIDE: MULTI-SCALE FOR ...

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This artist's concept shows plasma flows around NASA's Voyager 1 spacecraft as it gets close to entering interstellar space. Voyager 1's Low-Energy Charged Particle instrument detects the speed of the wind of plasma, or hot ionized gas, streaming off the Sun. It detected the slowing of this wind тАУ also known as the solar wind тАУ to zero outward velocity in a region called the stagnation region. ...

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THE IMAGE RECONSTRUCTION MODELLING IN THE SPACE EXPERIMENT WITH WIDE-FIELD GAMMA-RAY TELESCOPE WITH THE USE OF INTEGRAL SKY MAPS. , Russian Academy of Science, Profsoyznaya st. 84/32, Moscow 117810, Russia, E-mail: grif@dec1.npi.msu.su ABSTRACT The INTEGRAL sky maps were used for the simulations of the image reconstruction in the space experiment with a wide field (~2 sr) coding mask telescope elaborated for the all-sky monitoring in gamma-rays (0.05-1.0 MeV) ... Fig. ...

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... These sources are much more likely to be gravitationally lensed by intervening galaxies as compared with sources discovered in surveys in other wavebands. ... The effect of lensing by clusters is then discussed briefly. This is expected to increase the source confusion noise in a Planck survey in the directions of clusters, and could provide information about galaxies with flux densities that are too faint to be detected directly by Planck . ... 2 The properties of galaxy--galaxy lensing . ...

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Research Technician Radio Meteor Detection A fixed-term Research Technician position is available at the Armagh Observatory funded by the Europlanet Research Infrastructure (RI) under the Seventh Framework Programme of the European Union (EU). ... In addition, the equipment should be capable of operating in the field and at remote sites with a high degree of autonomy. ... For more information about the pro ject, please contact the PI, Dr Apostolos Christou, by email at aac@arm.ac.uk. ...

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Next: CONICA: The high resolution Up: VLT Status and Instruments Previous: VLT First Light . ... Infrared instruments for the VLT . Instrument Summary . ... The already approved infrared instruments for the VLT are: . ... CONICA: Coude Near Infrared Camera (P.I. R. Lenzen, MPIA, Heidelberg) - an historical name as this instrument will be used for diffraction limited 1-5 m imaging, polarimetry and spectroscopy with the NAOS, Nasmyth Adaptive Optics System on UT1 (P.I. G. Rousset, ONERA ). ...

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The RHEA spectrograph is an instrument currently under development at Macquarie University in Sydney and is expected to relocate to MSO later this year. ... The new feed is intended to substantially improve the throughput of the telescope-spectrograph system through the use of Phase Induced Amplitude Apodization (PIAA), a beam shaping technique, and a multi-fibre Integral Field Unit (IFU) using a microlens array and single mode fibres (SMF). ...

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Astronomy Discussion Forums . ... I Expected More Sense Than That. ... Post Message | ... Posted by Richard D. Stafford, Ph.D. on November 8, 2002 04:14:05 UTC . ... You are missing the point - harvey1 - November 8, 2002 - 13:10 UTC . I hope Stafford doesn't mind my intruding his forum - mrsouza - November 8, 2002 - 14:55 UTC . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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The Steady State model of the Universe was proposed in 1948 by Bondi and Gold and by Hoyle. ... At the time the Steady State model was proposed, the Big Bang model was in trouble because the value of the Hubble constant was clearly bigger than the inverse of the age of the Universe. ... Thus the Steady State model has flat spatial sections like the critical density Big Bang model. ... The Steady State model has no adjustable parameters to correct for this error, but the Big Bang does. ...

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