Telecons

Telecons and action items - most recent first

30/1/12

 * Paul to rerun all mgas with David's cosmology and mu values
 * David to rerun 1 cluster (to be named by Paul) with Paul's cosmology & mu
 * David to rerun 1 cluster with 1.5 keV exposure map to check vignetting correction
 * A1835 and other few outliers - any ideas???

12/01/11

 * David/Paul to compare the count rate and surface brightness within an annular bin at small radii for A1835.
 * Paul to calculate gas masses for clusters using Davids parameters.
 * http://www.star.bris.ac.uk/pag/bonamente/scaling/mgas/param_comp/mgas_param_comp.ps
 * David/Max to perform emissivity tests:
 * Ask Esra for details such as relativistic corrections
 * David to test the effect of using a 1.5 keV exposure map on the derived properties of a cluster

05/12/11
http://www.star.bris.ac.uk/pag/bonamente/a963/903_testbgspec.ps http://www.star.bris.ac.uk/pag/bonamente/a520/a520_SB_comp.ps
 * Mgas tests
 * Ben/Paul to compare with David's emissivity conversion table Lambda(T)
 * identify other outliers - A665, MS1455, A267, A1835, A2390 - Paul/David to discuss
 * A2552
 * check david's new redshift fixes agreement
 * global kT comparisons
 * A611 - bad flaring probably leading to high kT in outer bins - compare global kT in fixed radius of 150" rather than r500, maybe limit kT profile to <150 arcsec, possibility of using local bg from S1 but may not be reliable
 * A963 - accept weird bg and use difference in global kT between our modelling methods to indicate systematics
 * for A2204, compare spectrum in same region file for obsid 7940 - paul to check numbers
 * Paul/david to identify other outliers in kT-kT
 * A520
 * david to check exposure maps and Paul/david to exchange expmaps and check ratio - expect ~1.4
 * A1758
 * david send spec files and xspec script
 * R500-R500 plot
 * Paul/david to identify any outliers not found above
 * next telecon
 * 19/12/11 at 3pm

17/11/11
http://www.star.bris.ac.uk/pag/bonamente/a2390/a2390emfit_comp.ps http://www.star.bris.ac.uk/pag/bonamente/a963/903_testbgspec.ps http://www.star.bris.ac.uk/pag/bonamente/a520/a520_SB_comp.ps
 * Mgas tests
 * David to send kT profile used for emissivity calculation of A2390
 * David to send emissivity conversion table Lambda(T) for a cluster
 * identify other outliers
 * A1835
 * David to check Mgas - appears factor ~3 too low
 * A2552
 * agree on kT profile and EM profile, but R500 and Mgas500 differ significantly - paul to calculate Mgas using david's em parameters to compare with david's mgas. Other comparisons as needed...
 * global kT comparisons
 * A611 - bad flaring probably leading to high kT in outer bins - compare global kT in fixed radius of 150" rather than r500
 * A963 - look at in detail
 * for A2204, compare spectrum in same region file for obsid 7940 (paul to send region)
 * David to send R500 kT values for remaining clusters
 * Paul/david to identify other outliers
 * RXJ0439
 * Paul to try extra bin in kT profile
 * A520
 * david to send SB profile
 * A1758
 * Paul to check david's deflare command
 * R500-R500 plot
 * Paul/david to identify any outliers not found above
 * next telecon
 * 1/12/11 at 3pm

10/11/11

 * A2390
 * David to email notes on how gas density is computed
 * A611, A2204 & A963
 * David to send R500 kT values for all clusters
 * for A2204, compare spectrum in same region file for obsid 7940 (paul to send region)
 * RXJ0439
 * Paul to try extra bin in kT profile
 * A520
 * david to send spectrum files for 100" region so Paul can compare ARFs and fitting
 * A1758
 * Paul/David to perform painstaking and annoying analysis of flared ACIS-S observation - see http://adsabs.harvard.edu/abs/2004ApJ...613..831D
 * CALDB
 * Looks like changes to kT EM profile not significant based on one cluster, will compare a few more
 * scaling relations
 * paul to make updated plots
 * next telecon
 * 17/11/11 at 3pm

31/10/11

 * A2390
 * David to send latest density profile parameters
 * A611, A2204 & A963
 * paul to make updated kT profile comparison plots with xspec12
 * RXJ0439
 * Paul to try extra bin in kT profile
 * A520
 * paul/david compare kT inside 100" for obsid 9430 using same centroid
 * A1758
 * Paul/David to perform painstaking and annoying analysis of flared ACIS-S observation - see http://adsabs.harvard.edu/abs/2004ApJ...613..831D
 * CALDB
 * Paul to compare a few clusters with new caldb (mgas, kT etc)
 * scaling relations
 * david to send mgas, r500 and kT for all available clusters
 * next telecon
 * 10/11/11 at 3pm

24/10/11

 * A665
 * Paul to compare with David's counts in radial profile outer 3 bins
 * A2390
 * David to make surface brightness profiles including outer chips
 * A611, A2204 & A963
 * paul to make updated kT profile comparison plots with xspec12
 * RXJ0439
 * Paul to try extra bin in kT profile
 * A520
 * paul/david choose long obsid and compare kT in single bin
 * A1758
 * Paul/David to perform painstaking and annoying analysis of flared ACIS-S observation - see http://adsabs.harvard.edu/abs/2004ApJ...613..831D
 * CALDB
 * Paul to compare a few clusters with new caldb (mgas, kT etc)
 * scaling relations
 * david to send mgas, r500 and kT for all available clusters
 * next telecon
 * 31/10/11 at 3pm

10/10/2011

 * XSPEC
 * Paul to refit all global kT and kT profiles in xspec 12
 * A665
 * Paul to compare with David's counts in radial profile outer 3 bins
 * A2390
 * Paul/David to compare surface brightness profiles
 * Paul to rerun with XSPEC 12
 * A611/ACIS-S cleaning
 * David to rerun with Paul's GTIs for ACIS-S cleaning
 * A115
 * Paul to update mgas-mgas plot with David's new mgas and r500
 * A2204 & A963
 * Paul to rerun with XSPEC 12
 * RXJ0439
 * Paul to try extra bin in kT profile
 * A520
 * check we are using similar centre for kT profile
 * THOUGHT - could different centers account for some of the EM profile differences we see?
 * A1758
 * rescale bg for ACIS-I observation in 2.5-7 keV band (data cut off at 10 keV)
 * Paul/David to perform painstaking and annoying analysis of flared ACIS-S observation - see http://adsabs.harvard.edu/abs/2004ApJ...613..831D
 * CALDB
 * Nina working on a workaround
 * Next telecon
 * Thursday 20th Oct 3pm

2/9/2011

 * A665
 * David to check counts in our radial profile outer 3 bins
 * A2390
 * Paul/David to exchange spectra (plus bg, rmf, arf) for penultimate bin
 * Paul to check hard band scaling in each kT profile bin and see if it is constant
 * Paul/David to compare surface brightness profiles
 * A611/ACIS-S cleaning
 * Paul to send notes and GTIs for ACIS-S cleaning
 * A115
 * David to send Mgas and R500 from latest chain for mgas-mgas plot
 * A2204 & A963
 * exchange region files used for global kT
 * Paul to renormalise A963 background in 2.5-5 keV band due to anomolous bg spectrum
 * RXJ0439
 * Paul to try extra bin in kT profile
 * A520
 * check we are using similar centre for kT profile
 * THOUGHT - could different centers account for some of the EM profile differences we see?
 * A1758
 * rescale bg for ACIS-I observation in 2.5-7 keV band (data cut off at 10 keV)
 * Paul/David to perform painstaking and annoying analysis of flared ACIS-S observation - see http://adsabs.harvard.edu/abs/2004ApJ...613..831D
 * CALDB
 * memory bug is permanent so Paul/Ben to consider work around - i.e. compare kT in smaller region (R2500)
 * Next telecon
 * after huntsville meeting

2/9/2011

 * A665
 * Paul to make updated kT profile comparison
 * David to check counts in our radial profile outer bins
 * A2390
 * Paul to check bin 7 in our kT profile
 * Paul/David to compare surface brightness profiles
 * A611
 * David to measure global kT out to R500 and revisit ACIS-s lightcurve cleaning - N.B. we found evidence for weak flaring and dropped the first 22ks of this observation
 * A115
 * David to send Mgas and R500 from latest chain for mgas-mgas plot
 * A2204 & A963
 * exchange region files used for global kT
 * Paul to renormalise A963 background in 2.5-5 keV band due to anomolous bg spectrum
 * CALDB
 * memory bug is permanent so Paul/Ben to consider work around - i.e. compare kT in smaller region (R2500)
 * Other clusters
 * David to send kT profiles for remaining clusters & Paul to make updated plots
 * Next telecon
 * Thurs 8th Sept 9am

23/8/2011

 * A665
 * david to use 2nd obsid
 * Paul to send region file to check counts in our radial profile outer bins
 * A2390
 * Paul to check bin 7 in our kT profile
 * Paul to check bg level in EM profile on S4 chip
 * Paul/David to compare surface brightness profiles
 * A611
 * Paul to measure global kT out to 180"
 * David to measure global kT out to R500
 * Paul/David to compare lightcurves
 * A115
 * David to send Mgas and R500 from latest chain for mgas-mgas plot
 * A2204 & A963
 * exchange region files used for global kT
 * CALDB
 * waiting for helpdesk to fix memory bug
 * Other clusters
 * David to send kT profiles for remaining 5 clusters
 * wiki
 * David to add global properties comparison table
 * Next telecon
 * Friday 2nd Sept 9am

12/8/2011

 * A665
 * David to make kT profile with new lightcurve cleaning
 * Paul to check last few bins in radial profile
 * A68
 * Paul to make extra bin in kT profile
 * A697
 * Paul to make larger final bin in kT profile
 * A2390
 * Paul to make kT profile excluding S4
 * Paul to check bg level in EM profile on S4 chip
 * Paul/David to compare surface brightness profiles
 * CALDB
 * waiting for helpdesk to fix memory bug
 * Scaling Relations
 * David to redo kT-kT plot with improved kT values
 * Paul/David to make R500-R500 plot
 * Paul/David to check get same Mgas if use the same density profile and R500