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توضیحات

Imaging, analysis, and simulation software for radio interferometry

ویژگی	مقدار
سیستم عامل	-
نام فایل	ehtim-1.2.4
نام	ehtim
نسخه کتابخانه	1.2.4
نگهدارنده	[]
ایمیل نگهدارنده	[]
نویسنده	Andrew Chael
ایمیل نویسنده	achael@princeton.edu
آدرس صفحه اصلی	https://github.com/achael/eht-imaging
آدرس اینترنتی	https://pypi.org/project/ehtim/
مجوز	GPLv3

ehtim (eht-imaging) =================== Python modules for simulating and manipulating VLBI data and producing images with regularized maximum likelihood methods. This version is an early release so please raise an issue, submit a pull request, or email achael@princeton.edu if you have trouble or need help for your application. The package contains several primary classes for loading, simulating, and manipulating VLBI data. The main classes are the ``Image``, ``Movie``, ``Array``, ``Obsdata``, ``Imager``, and ``Caltable`` classes, which provide tools for loading images and data, producing simulated data from realistic u-v tracks, calibrating, inspecting, and plotting data, and producing images from data sets in various polarizations using various data terms and regularizing functions. Installation ------------ The latest stable version (`1.2.3 <https://github.com/achael/eht-imaging/releases/tag/v1.2.3>`_) is available on `PyPi <https://pypi.org/project/ehtim/>`_. Simply install pip and run .. code-block:: bash pip install ehtim Incremental updates are developed on the `dev branch <https://github.com/achael/eht-imaging/tree/dev>`_. To use the very latest (unstable) code, checkout the dev branch, change to the main eht-imaging directory, and run: .. code-block:: bash pip install . Installing with pip will update most of the required libraries automatically (`numpy <http://www.numpy.org/>`_, `scipy <http://www.scipy.org/>`_, `matplotlib <http://www.matplotlib.org/>`_, `astropy <http://www.astropy.org/>`_, `ephem <http://pypi.python.org/pypi/pyephem/>`_, `future <http://pypi.python.org/pypi/future>`_, `h5py <http://www.h5py.org/>`_, and `pandas <http://www.pandas.pydata.org/>`_). **If you want to use fast fourier transforms, you will also need to separately install** `NFFT <https://github.com/NFFT/nfft>`_ **and its** `pynfft wrapper <https://github.com/ghisvail/pyNFFT/>`_. The simplest way is to use `conda <https://anaconda.org/conda-forge/pynfft/>`__ to install both: .. code-block:: bash conda install -c conda-forge pynfft Alternatively, first install NFFT manually following the instructions on the `readme <https://github.com/NFFT/nfft>`_, making sure to use the ``--enable-openmp`` flag in compilation. Then install `pynfft <https://github.com/ghisvail/pyNFFT/>`_, with pip, following the readme instructions to link the installation to where you installed NFFT. Finally, reinstall ehtim. **Certain eht-imaging functions require other external packages that are not automatically installed.** In addition to pynfft, these include `networkx <https://networkx.github.io/>`_ (for image comparison functions), `requests <http://docs.python-requests.org/en/master/>`_ (for dynamical imaging), and `scikit-image <https://scikit-image.org/>`_ (for Hough transforms). However, the vast majority of the code will work without these dependencies. Documentation ------------- Documentation is `here <https://achael.github.io/eht-imaging>`_ . A full tutorial is in progress, but here are some ways to learn to use the code: - Start with the script examples/example.py, which contains a series of sample commands to load an image and array, generate data, and produce an image with various imaging algorithms. - `Slides <https://www.dropbox.com/s/7533ucj8bt54yh7/Bouman_Chael.pdf?dl=0>`_ from the EHT2016 data generation and imaging workshop contain a tutorial on generating data with the VLBI imaging `website <http://vlbiimaging.csail.mit.edu>`_, loading into the library, and producing an image. Some publications that use ehtim -------------------------------- If you use ehtim in your publication, please cite `Chael+ 2018 <http://adsabs.harvard.edu/abs/2018ApJ...857...23C>`_ Let us know if you use ehtim in your publication and we'll list it here! - High-Resolution Linear Polarimetric Imaging for the Event Horizon Telescope, `Chael et al. 2016 <https://arxiv.org/abs/1605.06156>`_ - Computational Imaging for VLBI Image Reconstruction, `Bouman et al. 2016 <http://www.cv-foundation.org/openaccess/content_cvpr_2016/html/Bouman_Computational_Imaging_for_CVPR_2016_paper.html>`_ - Stochastic Optics: A Scattering Mitigation Framework for Radio Interferometric Imaging, `Johnson 2016 <https://arxiv.org/abs/1610.05326>`_ - Reconstructing Video from Interferometric Measurements of Time-Varying Sources, `Bouman et al. 2017 <https://arxiv.org/abs/1711.01357>`_ - Dynamical Imaging with Interferometry, `Johnson et al. 2017 <https://arxiv.org/abs/1711.01286>`_ - Interferometric Imaging Directly with Closure Phases and Closure Amplitudes, `Chael et al. 2018 <https://arxiv.org/abs/1803.07088>`_ - A Model for Anisotropic Interstellar Scattering and its Application to Sgr A*, `Psaltis et al. 2018 <https://arxiv.org/abs/1805.01242>`_ - The Currrent Ability to Test Theories of Gravity with Black Hole Shadows, `Mizuno et al. 2018 <https://arxiv.org/abs/1804.05812>`_ - The Scattering and Intrinsic Structure of Sagittarius A* at Radio Wavelengths, `Johnson et al. 2018 <https://arxiv.org/abs/18008.08966>`_ - Testing GR with the Black Hole Shadow Size and Asymmetry of Sagittarius A*: Limitations from Interstellar Scattering, `Zhu et al. 2018 <https://arxiv.org/abs/1811.02079>`_ - The Size, Shape, and Scattering of Sagittarius A* at 86 GHz: First VLBI with ALMA, `Issaoun et al. 2019a <https://arxiv.org/abs/1901.06226>`_ - First M87 Event Horizon Telescope Results IV: Imaging the Central Supermassive Black Hole, `EHTC et al. 2019 <https://arxiv.org/abs/1906.11241>`_ - VLBI Imaging of black holes via second moment regularization, `Issaoun et al. 2019b <https://arxiv.org/pdf/1908.01296.pdf>`_ - Using evolutionary algorithms to model relativistic jets: Application to NGC 1052, `Fromm et al. 2019 <https://arxiv.org/pdf/1904.00106.pdf>`_ - EHT-HOPS Pipeline for Millimeter VLBI Data Reduction, `Blackburn et al. 2019 <https://arxiv.org/pdf/1903.08832>`_ - Multi-wavelength torus-jet model for Sagittarius A*, `Vincent et al. 2019 <https://arxiv.org/pdf/1902.01175>`_ - How to tell an accreting boson star from a black hole, `Olivares et al. 2020 <https://arxiv.org/abs/1809.08682>`_ - Discriminating Accretion States via Rotational Symmetry in Simulated Polarimetric Images of M87, `Palumbo et al. 2020 <https://arxiv.org/pdf/2004.01751.pdf>`_ - SYMBA: An end-to-end VLBI synthetic data generation pipeline, `Roelofs et al. 2020 <https://arxiv.org/pdf/2004.01161.pdf>`_ - Monitoring the Morphology of M87* in 2009-2017 with the Event Horizon Telescope, `Wielgus et al. 2020 <https://arxiv.org/pdf/2009.11842>`_ - EHT imaging of the archetypal blazar 3C 279 at extreme 20 microarcsecond resolution, `Kim et al. 2020 <https://www.aanda.org/articles/aa/pdf/2020/08/aa37493-20.pdf>`_ - Verification of Radiative Transfer Schemes for the EHT, `Gold et al. 2020 <https://iopscience.iop.org/article/10.3847/1538-4357/ab96c6/pdf>`_ - Closure Traces: Novel Calibration-insensitive Quantities for Radio Astronomy, `Broderick and Pesce. 2020 <https://iopscience.iop.org/article/10.3847/1538-4357/abbd9d/pdf>`_ - Evaluation of New Submillimeter VLBI Sites for the Event Horizon Telescope, `Raymond et al. 2021 <https://iopscience.iop.org/article/10.3847/1538-3881/abc3c3/pdf>`_ - Imaging VGOS Observations and Investigating Source Structure Effects, `Xu et al. 2021 <https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JB021238>`_ - A D-term Modeling Code (DMC) for Simultaneous Calibration and Full-Stokes Imaging of VLBI Data, `Pesce et al. 2021 <https://iopscience.iop.org/article/10.3847/1538-3881/abe3f8/pdf>`_ - Polarization Images of Accretion Flows around Supermassive BLack Holes: Imprints of Toroidal Field Structure, `Tsunetoe et al. 2021 <https://watermark.silverchair.com/psab054.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAsUwggLBBgkqhkiG9w0BBwagggKyMIICrgIBADCCAqcGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMdrsOAaUsDGsDHa2cAgEQgIICeMLAC3MR9Ld7lYRP4iEip8FSTz3TTR4K_yaxhw9kPthLhZLq4Zxs8_b7EyY8BywyYn6jUVlNM1czBskta4icw9YOQf2WX-2SkBGlQo7EdpZmHStribHPOF3ZtF4YA1dWNfzrXMFSR-ZZZW9iAfUFhKhgsyc0AY1O0rJLIAvlYPBE8SEAFUpV4Ck2nV-j-u_lyqe3CZcNO_tNB4fdE1x1HwhVWb_rxyC6n13hJhCJI7U3UJ5Q2u6dNH2BS4SUzet3JZ9RvIr9GkkSRRfdp0EDwNw6aG9TpAf8B-Fu7oW_NI7w_Jvh8kZBGzhnHisZ8acBRoMwbdHMv3cHqEUY5SKcYXVYART-z0QY_MJgxCoa4KDPG6rHl52Vf-eXJaYCmL4Y7xVas_hyPeUNk9TbhPqz4c8kOceb_BTo5oC5AFnwIIKw8kWmvwL7ofkcYmsrTlo0zWtgJ1I6lU7S1wxgD2JzRDg4gtVFdIcapB8q6ZhWWcBEvmwZ9Ad39UbH-hi4VZC8-IvzbvHNqfaifGsw1yvI86uNSu-iMY5ce0vAcZijbkVpAsbkvKGD6wP_T6OczWzayk13gegLvV2wZImleSWNFKO6cOpQSTKy2TbChWuYITc_tW3wUK-QOhjsdoB4V7SvXk_9d-bvjvBflRqDEUN5P8Yj4hpDpJYty4nxGJ4K6IWkyDRt_EZ2k9SOuwgXRZXxWA4tfJvKzvab8sRFqh98EcFNqDyAs_RZt1IVDch9GVl8X1VEbdD7MSzmw04kB-5U0l8HfmgBZyXs_i2hHUKesh1oUShTLUGcx86HApZXjtA4tSJct5CD8fvk_Vim2i5xx1_xGnBt3k7Z>`_ - Using space-VLBI to probe gravity around Sgr A*, `Fromm et al. 2021 <https://www.aanda.org/articles/aa/pdf/2021/05/aa37335-19.pdf>`_ - Persistent Non-Gaussian Structure in the Image of Sagittarius A* at 86 GHz, `Issaoun et al. 2021 <https://iopscience.iop.org/article/10.3847/1538-4357/ac00b0/pdf>`_ - First M87 Event Horizon Telescope Results. VII. Polarization of the Ring, `EHTC et al. 2021 <https://iopscience.iop.org/article/10.3847/2041-8213/abe71d/pdf>`_ - Event Horizon Telescope observations of the jet launching and collimation in Centaurus A, `Janssen et al. 2021 <https://www.nature.com/articles/s41550-021-01417-w.pdf>`_ Documentation ---------------- The oifits_new code used for reading/writing .oifits files is a slightly modified version of Paul Boley's package at `<http://astro.ins.urfu.ru/pages/~pboley/oifits>`_. The oifits read/write functionality is still being developed and may not work with all versions of python or astropy. The documentation is styled after `dfm's projects <https://github.com/dfm>`_ License ------- ehtim is licensed under GPLv3. See LICENSE.txt for more details.

نیازمندی

مقدار	نام
-	numpy
-	scipy
-	astropy
-	matplotlib
-	ephem
-	h5py
-	pandas
-	requests
-	future

نحوه نصب

نصب پکیج whl ehtim-1.2.4:

pip install ehtim-1.2.4.whl

نصب پکیج tar.gz ehtim-1.2.4:

pip install ehtim-1.2.4.tar.gz