English

ESPARTACO 2, a new stellar spectrograph at Uniandes

Instrumentation and Methods for Astrophysics 2025-04-30 v1 Solar and Stellar Astrophysics

Abstract

We present the construction and early results of ESPARTACO 2, the new stellar spectrograph built for research and education at the Astronomical Observatory of the Universidad de los Andes in Bogot\'a, Colombia. This instrument offers several resolutions from 20,000 in first order using a 50 μ\mum fiber, to 100,000 in second order in the near infrared. Precise radial-velocity measurements are made possible by simultaneous wavelength calibration. Combined with the 40-cm Meade telescope located at our facilities, a limiting magnitude of 6 is reached. This instrument is a considerable improvement over its predecessor in throughput, reliability and ease.

Keywords

Cite

@article{arxiv.2504.20424,
  title  = {ESPARTACO 2, a new stellar spectrograph at Uniandes},
  author = {B. Oostra and M. G. Batista},
  journal= {arXiv preprint arXiv:2504.20424},
  year   = {2025}
}

Comments

5 pages, 7 figures, 1 table, accepted in RevMexAA

R2 v1 2026-06-28T23:14:46.311Z