Proper image subtraction—optimal transient detection, photometry, and hypothesis testing
Transient detection and flux measurement via image subtraction stand at the base of time
domain astronomy. Due to the varying seeing conditions, the image subtraction process is …
domain astronomy. Due to the varying seeing conditions, the image subtraction process is …
Comparative performance of selected variability detection techniques in photometric time series data
KV Sokolovsky, P Gavras, A Karampelas… - Monthly Notices of …, 2017 - academic.oup.com
Photometric measurements are prone to systematic errors presenting a challenge to low-
amplitude variability detection. In search for a general-purpose variability detection …
amplitude variability detection. In search for a general-purpose variability detection …
Image subtraction in Fourier space
Image subtraction is essential for transient detection in time-domain astronomy. The point-
spread function (PSF), photometric scaling, and sky background generally vary with time …
spread function (PSF), photometric scaling, and sky background generally vary with time …
Spatially unresolved SED fitting can underestimate galaxy masses: a solution to the missing mass problem
R Sorba, M Sawicki - Monthly Notices of the Royal Astronomical …, 2018 - academic.oup.com
We perform spatially resolved, pixel-by-pixel Spectral Energy Distribution (SED) fitting on
galaxies up to z∼ 2.5 in the Hubble eXtreme Deep Field (XDF). Comparing stellar mass …
galaxies up to z∼ 2.5 in the Hubble eXtreme Deep Field (XDF). Comparing stellar mass …
The IPAC image subtraction and discovery pipeline for the Intermediate Palomar Transient Factory
FJ Masci, RR Laher, UD Rebbapragada… - Publications of the …, 2016 - iopscience.iop.org
We describe the near real-time transient-source discovery engine for the intermediate
Palomar Transient Factory (iPTF), currently in operations at the Infrared Processing and …
Palomar Transient Factory (iPTF), currently in operations at the Infrared Processing and …
The Lyman continuum escape and ISM properties in Tololo 1247−232 – new insights from HST and VLA
Low-and intermediate-mass galaxies are widely discussed as cause of reionization at
redshift z∼ 10–6. However, observational proof of galaxies that are leaking ionizing …
redshift z∼ 10–6. However, observational proof of galaxies that are leaking ionizing …
Testing the LSST Difference Image Analysis Pipeline Using Synthetic Source Injection Analysis
S Liu, WM Wood-Vasey, R Armstrong… - The Astrophysical …, 2024 - iopscience.iop.org
We evaluate the performance of the Legacy Survey of Space and Time Science Pipelines
Difference Image Analysis (DIA) on simulated images. By adding synthetic sources to …
Difference Image Analysis (DIA) on simulated images. By adding synthetic sources to …
O vi EMISSION IMAGING OF A GALAXY WITH THE HUBBLE SPACE TELESCOPE: A WARM GAS HALO SURROUNDING THE INTENSE STARBURST SDSS …
We report results from a new Hubble Space Telescope campaign that targets the O vi
$\lambda\lambda 1032, 1038$ Å doublet in emission around intensely star-forming …
$\lambda\lambda 1032, 1038$ Å doublet in emission around intensely star-forming …
The Lyα Reference Sample. XIV. Lyα Imaging of 45 Low-redshift Star-forming Galaxies and Inferences on Global Emission
We present Lyα imaging of 45 low-redshift star-forming galaxies observed with the Hubble
Space Telescope. The galaxies have been selected to have moderate to high star formation …
Space Telescope. The galaxies have been selected to have moderate to high star formation …
The Lyman alpha reference sample-VI. Lyman alpha escape from the edge-on disk galaxy Mrk 1486
Context. Recent numerical simulations suggest that the strength of the Lyman alpha (Lyα)
line of star-forming disk galaxies strongly depends on the inclination at which they are …
line of star-forming disk galaxies strongly depends on the inclination at which they are …