bldg2 printers

To print from the Unix shell under Tiger the printer name needs to include the machine name eg duplex4@lhea4.

Keywords: system

Preprints

Davis et al. describe the multiwavelength extended Groth strip survey with observations from radio to X-ray.

Graham & Driver derive a quadratic relation between BH mass and bulge concentration.

Li Ji et al. develop a non-equilibrium ionization model for stellar cluster winds.

Bridges et al. do a full-up Bayesian analysis of the 3-year WMAP and LSS data and conclude that the n=1 spectrum can be ruled out and that the form of the deviation from n=1 differs from a power-law.

Malbon et al. graft black hole growth onto their galaxy formation model based on LCDM and predict the number and sizes of BH mergers.

xspec11 error in tclout compinfo

Jeremy Sanders points out that the number of parameters in the model returned by tclout compinfo is one too few. Simple error in tclout.c which is patched as 11.3.2v.

Keywords: HEAsoft, xspec

xspec 11 memory allocation errors in fakeit and tclout

Jeremy Sanders provided some fixes to memory allocation of strings in fakeit.c and tclout.c. Some sizes were being set without including the null at the end. Bug fix 11.3.2u.

Keywords: HEAsoft, xspec

Preprints

Bouwens & Illingworth look for z~7-8 galaxies in NICMOS data and find less candidates than expected implying rapid evolution in the most luminous galaxies.

fix to genrsp

Randall spotted that the new v2.0 genrsp was only creating half-gaussian responses. This was due to a stupid error in clcrsp.f. v2.01 should get into the HEAsoft 6.1 release.

Keywords: genrsp, HEAsoft

Preprints

Diehl & Statler present results of analyzing Chandra observations of 54 normal ellipticals. They find little correlation between optical and X-ray emission and conclude that the X-ray emitting gas is generally out of equilibrium and does not retain information about the shape of the underlying potential.

Park et al. develop a Bayesian treatment of hardness ratios.

Wilman et al. present optical integrated field spectroscopy of the H-alpha luminous central galaxies in the four cooling flow clusters and find disturbed emission coincident with secondary galaxies.

Wickham et al. develop the use of reversible jump MCMC to study SMBH binary systems with LISA.

de Freitas Pacheco et al. estimate the capture rate of compact objects by SMBH.

Sanders presents a new technique for performing spatially-resolved spectroscopy by selecting regions based on surface-brightness contours of the smoothed image.

Loeb looks at thermal evaporation from clusters and notes this could lead to a loss of at least a tenth of the gas at the cluster virial temperature.

Schnittman et al. use relativistic MHD simulations of accretion onto a non-rotating BH to predict features of the high-frequency power spectrum.

Trimble et al. present their annual summary of the year in astrophysics.

Heinz et al. find using numerical simulations that radio source morphologies can be significantly changed by bulk flows in the cluster gas.

Beckmann et al. present the 20-40 keV AGN luminosity function based on Integral observations covering 25000 deg^2 and detecting 38 extragalactic objects.

Lauer et al. argue that for brightest cluster galaxies the BH mass correlation with bulge luminosity is more likely to be correct than that with bulge velocity dispersion.

Arun examines the differences in parameter estimation between 3.5PN and 2PN for LISA observations of BH mergers.

Babak et al. present "kludge" gravitational waveforms for compact objects inspiralling around massive black holes.

Preprints

Dotti et al discuss the EM signals or binary BH mergers detectable by LISA.

Maschenko et al. show that random bulk gas motions in primordial galaxies act to flatten the central dark matter cusps and hence solve the discrepancy between the predicted sharp cusps and observed flattened distributions.

Juett et al. present absorption edge results for Ne and Fe using HETG observations of X-ray binaries. They measure the Fe depletion onto dust grains and the Ne ionization structure of the ISM.

Kewley et al. analyze 85224 emission-line galaxies from the SDSS and derive a classification scheme which cleanly separates star-forming galaxies, AGN-HII composites, Seyferts and LINERs.

Cornish & Porter used annealed MCMC to extract the parameters for a SMBH binary embedded in a simulated LISA datastream.

Fregeau et al. discuss the detection probabilities with LISA and LIGO for IMBH binary mergers.

Dai et al. stack RASS data for over 4000 clusters selected from the 2MASS catalog and conclude that the relationships between mass, X-ray temperature, and X-ray luminosity are consistent with those for X-ray selected clusters.

McClintock et al. place a lower limit on the dimensional spin parameter for the BH in GRS1915 of 0.98 by modelling the X-ray continuum.

Schurch & Done model the soft X-ray emission from AGN as a failed disk wind where material is blown off the inner regions of the disk and falls back down onto the outer regions.

Rephaeli et al. analyze > 500 ksec of RXTE data on A2163 and derive a model where ~25 of the 3-50 keV emission is from a non-thermal component.

Sun et al. present a survey of the X-ray coronae of galaxies in nearby clusters.

extractor on OSF

The HEAsoft 6.1 version of extractor fails under OSF with

exception system: exiting due to internal error: out of memory trying to allocate exception system resources

We have no explanation for this at present. It appears to happen before any extractor code is executed.

Keywords: HEAsoft, extractor, OSF

extractor on Intel Mac

Fixed a bug when writing the XRONOS window file which showed up on the Intel Mac although since it was a format statement error we should have run into it before. v4.67.

Keywords: HEAsoft, extractor

xselect.mdb for Suzaku

At Koji's suggestion changed mkf_def_expr to ae*.mkf, since all relevant parameters are now included in the mkf file, and mkf_rel_dir to ../../auxil to conform to the v1 processing output.

Keywords: HEAsoft, xselect, Suzaku

pgplot /gif and /ppm drivers

Created C implementations of the pgplot /gif and /ppm drivers. The fortran versions of these use %VAL so fail on some fortran compilers. Used f2c to create a candidate C version then did a fair amount of tidying up. Confirmed that the drivers work correctly under Tiger but they may need tweaking for other systems.

Update: Added C implementation of pgplot /wd driver. More careful testing showed up a few discrepancies between the output files from the Fortran and C versions. After fixing some bugs the /ppm and /wd drivers produced identical binary output files from the Fortran and C versions. The /gif drivers produced small differences however these output files appear to be time-dependent since both the Fortran and C implementations produce slightly different binary files in successive runs. This was because the CODE array was not completely initialized to zero (one dimension was looped from 0 to 4095 not 0 to 4097 as required).

Keywords : heasoft, pgplot

PostScript driver

Another couple of tweaks to the PS driver to fix bugs. The code included some instances of the
string "\\" which were assumed to be interpreted by the compiler as "\". This doesn't work on all compilers so replaced this with char(92). Also, the prolog was being written with two instances of "%% Orientation", one specifying Landscape and the other Portrait. This was confusing Illustrator on the Mac.

Keywords: HEAsoft, pgplot

more XIS contamination models

After prompting by Aya Kubota I've made a model xiscoabh for the HXD nominal pointing position and xispcoab with an additional parameter giving the off-axis angle. Both these use the expression for column-depth vs off-axis angle from Dotani-san's e-mail.

Keywords: Suzaku

max number of GTIs in extractor

Someone on the Japanese side of the Suzaku team ran into the limit of 40960 rows in a GTI file ! I've increased this to 100,000 but it would be good to remove this limit completely and go to dynamically-allocated memory.

Keywords: HEAsoft, extractor, xselect

rdrmf5 and variable length records

There were two cancelling bugs in rdrmf4 and rdrmf5. The code to find whether a column was variable length had an error so never returned true. However, the attempt to then read all the data for a variable length column in one go is incorrect use of cfitsio, which requires such columns to be read one row at a time. Fixed both these bugs. Note that some tools still call rdrmf4 - these should be updated.

Keywords: HEAsoft

Preprints

Lazendic et al. present results from the analysis of a 70 ksec Chandra HETG observation of Cas A and describe the techniques used on such a large and complex target.

Loewenstein looks at heavy metal creation in field and cluster galaxies and concludes that star formation is >3 times as efficient in clusters as in the field, mitigating the overcooling problem.

Bogdanov et al. propose that the tail in the spectrum of rotation-powered millisecond pulsars is due to Comptonization of the thermal polar cap emission.

Benford models jets and magnetic bubbles to argue that magnetic structures can persist long after the jet has turned off and this explains the bubbles seen in the ICM.

Miller et al. show from X-ray observations of GRO J1655 that the absorbing wind must be driven by magnetic forces internal to the disk.

Blundell et al. determine the low-energy cutoff for the energy of relativistic particles accelerated in radio lobe hot spots.

Krivonos et al. analyze Integral observations of the Galactic Ridge and show that in spectrum and spatial distribution it is consistent with a population of accreting magnetic white dwarf binaries.

Saunders et al. discuss the optimal sampling strategy for searching for periodic signals.

Pizzolato and Soker argue that the R-T instability in radio bubbles in cooling flow clusters is stabilised by the deceleration of the interface in the initial expansion of the bubble increasing the expected lifetime.

Hogan detects the production of gravitational wave bursts by light cosmic strings.

fakeit in v12

Changes to support use of Gaussian statistics when simulating the model part of the source file. If there is a pre-existing dataset then its value of is_Poisson is used when faking. If there is no pre-existing dataset then Poisson statistics are used.

This is required for Swift BAT simulations but also should be useful for other instruments which have non-Poisson statistics.

Keywords: xspec, HEAsoft

PGPLOT PS driver

Made considerable simplification to the GRPSSY routine in psdriv.f. This was very baroque and I was able to reduce the code length by a factor of three and generate cleaner PS. This also fixed a nasty bug in the plot sens command in xspec.

Keywords: HEAsoft, pgplot

xselect and filter col PI=...

Fixed the case that the user does a filter column on the spectrum column (PHA or PI). Before this was not working because I automatically add a filter between the minimum and maximum allowed values. The two sets of filters are ORed in extractor so the filter column has no effect. Removed the min to max filter if a filter column on the spectrum is present. There is a potential conflict if the user does both a filter pha and a filter column on the PI/PHA. In this case the filter pha is ignored.

It would be to good to support exclude ranges in extractor so that the user could specify eg filter column PI=!1600:1700 to get all channels except 1600-1700.

Keywords: HEAsoft, xselect