I'm generating PSF-free images, so no atmosphere and no diffraction, and the images I'm getting out have stars in "quantized" positions. I'm wondering if there is an option in GalSim to prevent this, i.e. to have a more sinc-like distribution of the photons, so the behaviour of photons landing somewhere between pixels is taken into account. If there isn't an option for this, I suppose I would need to create my own sinc-function PSF and implement it around the drawImage() step?
Is there a simple way to prevent GalSim from shooting all the photons from a star into a single pixel?
80 Views Asked by galilei At
1
There are 1 best solutions below
Related Questions in PYTHON
- How to store a date/time in sqlite (or something similar to a date)
- Instagrapi recently showing HTTPError and UnknownError
- How to Retrieve Data from an MySQL Database and Display it in a GUI?
- How to create a regular expression to partition a string that terminates in either ": 45" or ",", without the ": "
- Python Geopandas unable to convert latitude longitude to points
- Influence of Unused FFN on Model Accuracy in PyTorch
- Seeking Python Libraries for Removing Extraneous Characters and Spaces in Text
- Writes to child subprocess.Popen.stdin don't work from within process group?
- Conda has two different python binarys (python and python3) with the same version for a single environment. Why?
- Problem with add new attribute in table with BOTO3 on python
- Can't install packages in python conda environment
- Setting diagonal of a matrix to zero
- List of numbers converted to list of strings to iterate over it. But receiving TypeError messages
- Basic Python Question: Shortening If Statements
- Python and regex, can't understand why some words are left out of the match
Related Questions in SIMULATION
- Checking Event in solve_ivp
- I run Micromouse simulation (mms by Mackorone) using BFS algorithm but it not going well
- Cyclic Voltammetry Simmulation in MATLAB, I am running into issues with my data points returning as NaN values, i am a beginner, any help wanted
- VHDL Finite State Machine not transitioning correctly based on external signal
- Recoverable Error when running OPNET project
- Coding Runge-Kutta 4 in C++ for a Force proportional to 1/r^2 outputs a trajectory different from scipy.optimise.solve_ivp
- Simulation of interrupted set-up and delayed server shutdown in batch processing system
- Optimizing the reaction-diffusion algorithm in Monogame C#
- Runge Kutta implementation is less accurate than Euler implementation
- How do I simulate a vector field from the Boit-Savart law for a coil?
- Simulate nested logit errors in Python
- Simulating a discrete approximation to a random walk in R with multiple conditions
- SystemC Error with wait() in SC_THREAD: "wait() is only allowed in SC_THREADs and SC_CTHREADs"
- Simulating new variables based on existing variables
- Keeping Track of Coin Flips Even When They Are Not Flipped
Related Questions in GALSIM
- GalSim plot surface magnitude profile
- Is there a simple way to prevent GalSim from shooting all the photons from a star into a single pixel?
- Is there a way to get the galsim stamp size of a profile without computing the pixel table?
- How to import angle values from a catalog into GalSim
- galsim galaxy simulation with (local wcs) PSF
- SED and PSF in Galsim
- TypeError while running scons tests for Galsim installation on macOS 10.12 with anaconda
- Can't read FITS file with GalSim
- Drawing an image of PSF with custom radial profile in GalSim
- Is the galsim boost dependency really needed?
- Atmosphere vs. AtmosphericScreen then PhaseScreenList
- Piecewise function parameters for SED or Bandpass in GalSim
- Translating right ascension and declination onto image
- "Overlapping" galaxies on GalSim
- installing Galsim on OSX with conda environment: fftw/tmv file failed to link correctly
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Stars are inherently supposed to look like point sources if you don't have any PSF at all (no atmosphere, no diffraction). They are a delta function in that case, so all of the photons should fall into a single pixel. GalSim is doing exactly what you are asking it to do.
It sounds like you actually do want to have a PSF; I suggest using the galsim.Airy class, representing a diffraction-limited PSF.