Alexandre Beelen @ IAS - Tools

IDL Scripts

2006-06-08T00:00:00+02:00

Several, mostly discarded, IDL scripts that I wrote for my own use but that may be usefull to other. Dealing with line fitting, wrapping the ASURV software, general statistics and much more. They are all under the GPL, so everyone is permitted to redistribute and/or modify them under the terms of the GPL.

You can find them on gitlab or as a tar.

GILDAS Line fitting (gildas)

Deriving line parameter from a UVFIT in the Grenoble Image and Line Data Analysis System is not an easy task. I developped a few program to be able to do it easily. First you should patch the gio library of GILDAS in order to be able to save uvfit result in fits format. The task gildas_fits or fits will then be able to save UVFITS result table in fits format (use standard fits format and number of bits=-32). The resulting fits file can then be used to derive line parameters, for example with the IDL script included, using the Markwardt IDL Library to make the fit. The very usefull TexToIDL library is also used to legend the plot. Uncertainties on the fitted line parameters are derived from spectra uncertainties, computed from the visibilities and thus does not required the complex process of deconvolution/reconvolution involved in the mapping of interferometric data.

tofits.diff : small patch for the tofits.f file of the gio library of GILDAS
fit_line.pro : fit a gaussian line to the spectrum
mp_gauss.pro : define the fitted function, a gaussian with a continnum

IDL-ASURV (asurv)

To easily use and test the Astronomical SURVival Analysis package, I wrote a simple C wrapper which can be directly be called, as a library, from IDLor other language/program. This work has been highly simplified by the splitting of the original monolitical code of ASURV by the Starlink project. The univariate two sample tests, bivariate correlation tests and linear regression have been wrapped.

asurv.tar.gz : The, now gone, starlink version of ASURV
lib_bivar.f lib_univar.f lunivar.c : actual wrapper
Makefile : makefile to build the wrapper

IDL - Statistics (stats)

Two very usefull routines to plot the histogram and the partition function of a dataset. The first use the IDL histogram function but also compute the proper abscissa.

plot_repart.pro : draw an histogram of a variable
plot_histo.pro : plot the repartition function of a variable

IDL-SDSS (sdss)

I wrote some IDL routine to easily manipulate SDSS spectra. It has been tested on the DR3QSO catalog and spectra.

filename_sdss.pro : construct the filename of a spectra from information in the DR3QSO catalog
read_sdss_spectrum.pro : read an SDSS spectrum into a IDL structure
plot_sdss_spectrum.pro : plot an SDSS spectrum the SDSS way

IDL Misc. (misc)

Here are a few IDL scripts that I wrote for every day use.

zeta.pro compute the zeta function
barre.pro draw an horizontal bar
const.pro define some physical constant (SI)
copyright.pro add copyright to your plot
draft.pro add a draft comment to your plot

SHARC II / CRUSH

2006-06-08T00:00:00+02:00

Warning

Note that those scripts where made for use with CRUSH I. Although they could still apply with the newest CRUSH II software, they have not been tested.

In order to make batch reduction with CRUSH, I also wrote some shell scripts to simplify this process.

You can find they on gitlab or as a tar.

Shell scripts to process batch of SHARC II data using CRUSH

You have to change the config.sh to set the correct path for your configuration. You also need to create a target_sources file in the $LIST_DIR directory which list all your target sources name as reported in the fits files. Run the make_list.sh script to produce scan list for each target source. You can now reduce the complete project by running reduce_target.sh or individual sources with reduce_source.sh source_name Shell scripts to reduce SHARC II project in batch with CRUSH

config.sh : define all the variable parameters/path
make_list.sh : make the scan lists for target sources
reduce_source.sh : reduce one source
reduce_target.sh : reduce all the target sources

IDL scripts to display CRUSH reduced SHARC II data

I also wrote a few IDL scripts I use to display astronomical maps taken with SHARC II and reduced with CRUSH. They made intensive use of the IDL Astronomy User's Library and IMDISP library.

You have to change the default path in read_scan.pro, and then you case use the plot_scan routine with a least one argument, the fits file name, to display the signal (default), the noise (/noise), the signal-to-noise ratio (/s2n), or the integrated time (/time). You can also smooth the map to the FWHM of the CSO (/smooth), force the correct aspect ratio of the image (/aspect), crop the pixel with integrated time less than a value (crop=value), put a cross on the pointed position (/cross), change the display of the axis - offset (default) or absolute (/type), change the contours wrt to time (contours_time=[0,5]), and suppress the wedge (/nowedge)

The plot_scan routine is in fact more general and could be use with any kind of astronomical image, as long as the structure returned by the read_scan routine is filled with the right values.

read_scan.pro : read the fits file; unit conversions; return a structure containing the data
plot_scan.pro : display the scan with various options

Perl ADS

2006-06-07T00:00:00+02:00

These perl scripts are used to access the ADS database in an easy way, directly from the shell prompt. They are useful to build a bibtex database, retrieve pdf files of a list of paper, or to make simple statistics. There is two sets of scripts : the first one, somehow older, is based on LWP::UserAgent to access directly ADS web pages. The second is a rewrite of the latter using the Astro::ADS library.

You can find they on gitlab or as a tar.

Scripts using the LWP::UserAgent library

get_author.pl : produce bibliography in the bibtex format from ADS, given an author name and start/stop year
get_bib.pl : retrieve the bibtex entry of an article in ADS given its journal, volume and page.
get_bibtex.pl : retrieve the bibtex entry of an article in ADS given its bibcode

Scripts using the Astro::ADS library

adsastro.patch : patch for the Astro::ADS library to take the Journal/Volume/Page information as an entry
get_biblio.pl : retrieve a specific bibtex entry and the pdf of a given astro-ph or ADS article
process_list.pl : retrieve the pdf and bibtex entry of a list of mixed astro-ph and ADS (J/V/P) entries
get_astroph.pl : get the bibcode of an article published in astro-ph, given its id number
get_bibcode.pl : get the bibcode of an article published in ADS given its journal, volume and page
get_bibpdf.pl : retrieve the pdf of a given bibcode

Thesis IAS

2004-04-16T00:00:00+02:00

I adapted the thloria LaTex class for thesis wrote at IAS. You need to install the thloria class in order to use this one.

You can find the files on gitlab or as a tar.

ias.eps : vectorized IAS logo
main.tex : example file
thesis_IAS.cls : the actual LaTex Class