GW150914: FIRST SEARCH FOR THE ELECTROMAGNETIC COUNTERPART OF A GRAVITATIONAL-WAVE EVENT BY THE TOROS COLLABORATION
We present the results of the optical follow-up conducted by the TOROS collaboration of the first gravitational-wave event GW150914. We conducted unfiltered CCD observations (0.35–1 μm) with the 1.5…
SNIa Cosmology Analysis Results from Simulated LSST Images: From Difference Imaging to Constraints on Dark Energy
- B. S'anchez, R. Kessler, W. Wood-Vasey
- PhysicsAstrophysical Journal
- 12 November 2021
The Vera Rubin Observatory Legacy Survey of Space and Time (LSST) is expected to process ∼106 transient detections per night. For precision measurements of cosmological parameters and rates, it is…
Synergies between Vera C. Rubin Observatory, Nancy Grace Roman Space Telescope, and Euclid Mission: Constraining Dark Energy with Type Ia Supernovae
- B. Rose, G. Aldering, H. Qu
- Physics
- 2 April 2021
We review the needs of the supernova community for improvements in survey coordination and data sharing that would significantly boost the constraints on dark energy using samples of Type Ia…
SCORPIO, a package for the visualization of galaxy pairs
- J. Benavides, M. Chalela, J. Cabral, B. S'anchez, S. Gurovich
- Physics
- 1 November 2021
We present the description of the project SCORPIO, a Python package for retrieving images and associated data of galaxy pairs based on their position, facilitating visual analysis and data collation…
The First Galaxy Cluster Discovered by the VISTA Variables in the Vía Láctea Survey
- L. Baravalle, J. L. N. Castell'on, F. M. Castro
- PhysicsAstrophysical Journal
- 30 January 2019
We report the first confirmed detection of the galaxy cluster VVV-J144321-611754 at very low latitudes (l = 315.°836, b = −1.°650) located in the tile d015 of the VISTA Variables in the Vía Láctea…
Determining the aberrations in a nearly diffraction-limited spectrograph
- B. S'anchez, A. Watson, S. Cuevas
- Physics
- 27 April 2022
We present a method to determine the static aberrations in a nearly diffraction-limited spectrograph introduced, for example, by alignment or manufacturing errors. We consider an instrument with two…
Being nice to the server: Wrapping a REST API for a cosmological distance/velocity calculator with Python
- J. Cabral, E. Kourkchi, M. Beroiz, Erik Peterson, B. S'anchez
- Computer Science
- 23 October 2021
PyCF3, a python client for the cosmological distancevelocity calculator CosmicFlow-3 has a cache and retry system designed with the objective of reducing the stress on the server and mitigating the waiting times of the users in the calculations.