EPIC-pn Burst Mode X-ray loading and rate-dependent CTI calibration Jan-Uwe Ness ESAC 09 April 2015 XRL / RDCTI corrections in burst mode JU Ness ESAC , April 9 2015 Energy offsets caused by X-ray loading In 2010, significant effects from X-ray loading ( XRL ) were discovered in the timing mode and burst ... Thus the values of a0, a1, a2 control the rate dependent correction and are determined empirically. ...

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

... Column 1 gives the object name from the Case or Markarian catalogs. ... For Markarian galaxies the errors of coordinates usually lie inside 2'' (Lipovetsky [ 1983 ]). Column 4 gives the eye-estimated apparent blue magnitudes according to the same sources. ... Other names of a galaxy we give in column 7. ... In column 3 we cite the original emission-line code of the galaxy for the strength of [O III ] doublet according to the Case catalog (s - strong, m - medium, w - weak). ...

Next: Program use Up: Description of program searchdup Previous: Description of program searchdup . Parameter input is done with a graphic user interface. ... Input file: Name of the input catalog file. It has to be formatted, one record per source/observation, according to the format used in the Arcetri observations and source archives. ... Minimum number of observations per source Source with less than this number of independent observations are not included in the output file . ...

Next: System configuration Up: How to use CONSTRICTOR Previous: Preparation of parameter file Contents . ... DayNumber: Even though this number is in the data, some packet headers have the wrong number and it makes it a whole lot easier to have the user check and enter this number correctly. ... CONSTRICTOR will add a multiple of 24 hours to the time tag when the day number changes. Remember to set the StopTime to, say, 48 hours if you use a DayNumber of one less than the actual day number. ...

The problem of solar wind data correlation for the observations onboard several spacecraft is very important for three points of view: . ... This problem is studied now in detail by systematic determination of ion flux and ion velocity data correlations by INTERBALL-1 (IKI group), WIND and IMP 8 (both - MIT group). ... Solar wind plasma correlation lengths from IMP 8, WIND and INTERBALL-1. ... Correlation of solar wind observations onboard several spacecraft: INTERBALL-1, IMP 8 and WIND data. ...

Search for a 2nd Double Pulsar Binary Steve Begin, Marta Burgay, Julia Deneva, James Sheckard Project Leader : Scott Ransom Background Info · · · · · · Pulsar J1906+07, discovered in Sept. 2004 by P-ALFA P=144ms, DM=217.77 Characteristic age ~10^5 yr Porb = 3.98 hours Periastron advance ~ 7.777 deg/yr Mtot ~ 2.7 Msun · · Mpulsar < 1.7Msun Mcompanion > 0.9 Msun Companion Type? ...

... Basic Observables: Zero-differenced phase and code ionosphere-free combinations of global GNSS network stations, corrected by P1-C1 satellite code biases (cc2noncc), daily observations with 30 seconds sampling rate Sites coordinates : IGb08 reference frame coordinates and velocities Displacements: solid tides, ocean loading, pole tide loading (IERS 2010) Geometric model : Receivers antennas eccentricities, absolute receiver and ...

... Correcting ETC Calculations of CCD Spectral Observations for CTE Effects . ... HST Overview . Overview . ... Post-Observation . ... ETC . ... ID: CL Script for Applying CTE Loss to Output of Spectroscopic ETC . ... However, the STIS ETC calculations do not incorporate these CTE effects as yet. ... The output from this script should then be used to calculate the appropriate input flux level for a second run of the ETC, which will then yield output which is corrected for the CTE effect. ...

... Calculations of at least two runs with different values of a parameter are required in order to discover to what extent the results depend on the , if at all. ... In order to study how the final statistical distributions depend on the initial functions, the method of Green functions is used. ... Then we can restore any distribution on this parameter (with a certain accuracy) by summing the results for each interval with the appropriate weight. ...

... Based on the measurements of the Stokes parameters in the continuum and in the broad 0.6563 nm hydrogen emission line obtained with the 6-m telescope for the Seyfert galaxy Mkn 6, secular variability of the hydrogen line profile polarization was discovered; a time lag of less than 2 days between the continuum flux and the polarized continuum emission was determined which corresponds to the size of the region where the polarization of the continuum occurs, less than 0.001 pc. ...

... CentralProcessor 0.11 documentation . ... Here we detail the input parameters that cover the overall process control, and the switches to turn on & off different parts of the pipeline. Values for parameters that act as flags (ie. those that accept true/false values) should be given in lower case only , to ensure comparisons work properly. These parameters affect how the slurm jobs are set up and where the output data products go. ... SUBMIT_JOBS . ... User Parameters - Pipeline & job control . ...

... comet nucleus. ... Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), cometary families , terrestrial type planets, collidings, transition of a comet nucleus , initial heliocentric parabolic orbit, heliocentric elliptical trajectory, a pairwise three dimensional two-body problem, the Sun - comet nucleus , terrestrial planet - comet nucleus , orbital parameters of a nucleus , sphere of influence of a ...

... Main page . ... Parameters . ... Modes: . ... Long-slit . ... Back to SAO web page . ... This page is designed by A.V. Moiseev . ... The SCORPIO-2 project: . Spectral Camera with Optical Reducer for Photometric and Interferometric Observations - 2 . The SCORPIO-2 main parameters . ... Spectral range . ... Spectral resolution . R=500-4000 in long-slit mode . R=4000-15000 in scanning FPI mode . The CCD detector . ... The quantum efficiency measurements for CCD detector ...

... Bojan Nikolic web pages home . ... As an exercise to put through the new InMin library through its paces, I have looked recently at applying Nested Sampling ( Skilling2006 ) algorithm to the fitting of star-formation history as function of redshift. ... The data I used are from Figure 1 of Yuksel08 but I use only the grey data paints, which are just the data originally from Hopkins2006 . ... The next step is to define the function which is the model for the history of the SFR density. ...

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

... Second, the observatory can control the configuration, test data analysis procedures, and provide calibration solutions with the help of instrument models. This paper presents the VLT object-oriented framework for the development of ETCs (Exposure Time Calculators) and data simulators. ... Instrument simulations are being developed for the purpose of predictive calibration, instrument configuration control, and evaluation of data analysis procedures. ...

A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The interface between the lower solar atmosphere where energy is generated by subsurface convection and the corona comprises the chromosphere, which is dominated by jet-like, dynamic structures, called mottles when found in quiet regions, fibrils when found in active regions and spicules when observed at the solar limb. ... In addition, how they affect the coronal heating and solar wind need to be further explored. ...