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* Add units.py: Commonly used units and conversions and constantsAaron LI2017-06-011-0/+66
| | | | | Astropy's unit conversions is too slow, thus store the used units conversions to avoid astropy's slow conversions.
* mergertree.py: Implement function "plot_mtree()"Aaron LI2017-06-011-2/+52
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* halo.py: Update to match MergerTree structuresAaron LI2017-06-011-8/+8
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* configs: Add sigma8 to specificationsAaron LI2017-06-011-0/+2
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* Add clusters/formation.py: Simulate cluster merging historyAaron LI2017-06-012-0/+234
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* mergertree.py: Remove "merged" parameterAaron LI2017-06-011-5/+1
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* solver.py: Avoid possible overflow when w is too largeAaron LI2017-06-011-0/+10
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* halo.py: Force a minimal value on acceleration coefficientAaron LI2017-06-013-3/+27
| | | | | | | To avoid the too small (or zero) values for the diffusion coefficient of the Fokker-Planck equation. Also change config "extragalactic/halo/pmax" from 1e4 to 1e5
* cosmology.py: Greatly optimize the speed!Aaron LI2017-06-011-26/+57
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* cosmology.py: Only support flat ΛCDM cosmological modelAaron LI2017-06-011-93/+25
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* clusters/halo: Add missing config "buffer_np"Aaron LI2017-06-012-0/+7
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* clusters/solver.py: Extrapolate the x grid to avoid NaN'sAaron LI2017-06-011-5/+15
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* clusters/solver.py: Disable a RuntimeWarningAaron LI2017-06-011-2/+4
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* clusters/clusters.py: Fix import pathAaron LI2017-06-011-6/+6
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* Add "[extragalactic/halos]" configurationsAaron LI2017-06-011-0/+44
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* Add clusters/halo.py: simulate single halo for clusterAaron LI2017-06-011-0/+698
| | | | | Simulate (giant) radio halos following the "statistical magneto-turbulent model" proposed by Cassano & Brunetti (2005).
* cosmology.py: Change name to "Cosmology"; Add "age0" and "Ob0"Aaron LI2017-06-011-3/+18
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* Add clusters/solver.py to solve the Fokker-Planck equationAaron LI2017-06-011-0/+276
| | | | | Adopt the finite difference scheme to solve the Fokker-Planck equation, following Park & Petrosian (1996, ApJS, 103, 255).
* Add clusters/mergertree.pyAaron LI2017-06-011-0/+77
| | | | | The merger tree is a binary tree that represents the merging (or formation) history of a cluster.
* Add clusters/cosmology.py with common cosmological modelsAaron LI2017-06-011-0/+230
| | | | | | Mainly the "flat LambdaCDM" and "EdS" cosmological models. With some useful utility functions.
* Make separate directory for clusters, prepare for halo simulationsAaron LI2017-06-013-4/+4
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* uvsim/telescope.py: Add "plot_stations()" and "plot_telescope()"Aaron LI2017-06-011-8/+79
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* Add uvsim/ska1low.layout.txt: SKA1-low layout v2.0 2016-05-31Aaron LI2017-05-311-0/+538
| | | | | | Reference: SKA-TEL-SKO-0000422, revision 02, 2016-05-31, Table 1 http://astronomers.skatelescope.org/wp-content/uploads/2016/09/SKA-TEL-SKO-0000422_02_SKA1_LowConfigurationCoordinates-1.pdf
* Add uvsim/telescope.py and bin/make-ska1low-modelAaron LI2017-05-312-0/+220
| | | | | The `bin/make-ska1low-model` executable uses `telescope.py` to generate the SKA1-low telescope model for OSKAR simulation usage.
* Add uvsim/wgs84.py: Convert WGS84 to ECEF/ENU coordinatesAaron LI2017-05-311-0/+97
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* sky.py: Fix FITS header writeAaron LI2017-05-271-4/+8
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* extragalactic/clusters: Update to use sky.pyAaron LI2017-05-262-78/+91
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* extragalactic/clusters: Scale input catalog to match the sky coverageAaron LI2017-05-261-20/+29
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* sky.py: Add "area()" methodAaron LI2017-05-251-0/+21
| | | | | | XXX/FIXME --------- Consider the spherical coordination and WCS sky projection!!
* galactic/snr: Update to support the sky.pyAaron LI2017-05-222-103/+119
| | | | Also fix a typo in configs/checkers.py
* sky.py: Implement method "reproject_to()"Aaron LI2017-05-221-8/+102
| | | | | | | | | | This method reproject the given sky/image onto the grid of its own, using the ``reproject`` package [1]. However, the performance may be a problem and needs optimization or rewrite. [1] reproject: https://github.com/astrofrog/reproject
* Add utils/wcs.py with function "make_wcs()"Aaron LI2017-05-221-0/+54
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* utils/grid: Add function "make_ellipse()"Aaron LI2017-05-221-7/+47
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* sky/SkyPatch: Add wcs and region coverage checkAaron LI2017-05-221-0/+56
| | | | NOTE: only TAN sky projection supported.
* configs/checkers: Check SNR simulation resolution against pixel sizeAaron LI2017-05-211-0/+7
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* Minor updates to galactic/{freefree,synchrotron}.pyAaron LI2017-05-212-12/+10
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* sky.py: Flatten 2D image of sky patch to 1D for easier processingAaron LI2017-05-211-14/+21
| | | | | Flatten the image array to 1D makes it similar to the HEALPix map array, therefore, it is easier to deal with both cases.
* galactic/freefree: Update to support sky.pyAaron LI2017-05-212-70/+54
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* galactic/synchrotron: Update to support sky.pyAaron LI2017-05-213-117/+121
| | | | | | | * Also update foregrounds.py to use sky.py * Minor fixes to configs/manager.py TODO: update synchrotron/add_smallscales() to also work with sky patch.
* Add sky.py to support both sky patch and HEALPix all-sky mapAaron LI2017-05-211-0/+272
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* galactic/synchrotron.py: Fix typo w.r.t. component nameAaron LI2017-05-211-1/+1
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* configs : Drop "output/filetype"; only support FITSAaron LI2017-05-176-31/+3
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* configs: New "sky" section, and remove "common" sectionAaron LI2017-05-164-39/+69
| | | | * Update checkers accordingly
* configs: Use separate section "foregrounds" to config componentsAaron LI2017-05-164-31/+63
| | | | Also update copyright information.
* Bump to version 0.4.1 with important bug fixesv0.4.1Aaron LI2016-12-131-1/+1
| | | | | | | | | | | | | | * Fix two serious bug in "utils/draw.py", which causes the generated ellipses are wrong (like rectangles), and thus leads to wrong simulation shapes for SNRs, clusters, etc. * Also clean up "utils/draw.py" by merging the "_ellipse_in_shape()" function into "ellipse()". * Update "galactic/snr.py" to use the JIT-optimized "Fnu_to_Tb_fast()" function. * Other small changes/updates.
* galactic/snr.py: Small cleanup; Update default resolutionAaron LI2016-12-132-3/+4
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* utils/draw.py: Merge "_ellipse_in_shape()" to "ellipse()"Aaron LI2016-12-132-85/+25
| | | | | * Fix the bug that "ellipse()" generate unexpected results. * Update the parameters of "ellipse()" also
* utils/draw.py: Fix a wrong brace in "_ellipse_in_shape()"Aaron LI2016-12-131-1/+1
| | | | | This bug causes wrong ellipse generation, which is the main reason to the strange and wrong SNRs shapes.
* galactic/snr.py: Use HEALPix pixel area if object smaller than itAaron LI2016-12-131-1/+5
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* galactic/snr.py: Update to use "Fnu_to_Tb_fast()"; some cleanupsAaron LI2016-12-131-18/+19
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