English

Chandra Resolves the Double FU Orionis System RNO 1B/1C in X-rays

Solar and Stellar Astrophysics 2020-05-06 v1 High Energy Astrophysical Phenomena

Abstract

We present new Chandra X-ray observations of the close pair of young stars RNO 1B and 1C (6'' separation) located in the L1287 cloud. RNO 1B erupted in 1978 - 1990 and is classified as an FU Orionis star (FUor). RNO 1C also shows most of the properties of an FUor but no eruption has yet been seen. Only a few dozen FUors are known and the presence of two such objects with a small angular separation is rare, suggesting a common origin. Both stars were faintly detected by Chandra and we summarize their X-ray properties within the framework of other previously detected FUors. We also report other X-ray detections in L1287 including the deeply-embedded young star RNO 1G, the jet-like radio source VLA 3, and an enigmatic hard flaring source with no 2MASS counterpart that was only detected in the second of two Chandra exposures.

Keywords

Cite

@article{arxiv.2003.07944,
  title  = {Chandra Resolves the Double FU Orionis System RNO 1B/1C in X-rays},
  author = {Stephen L. Skinner and Manuel Guedel},
  journal= {arXiv preprint arXiv:2003.07944},
  year   = {2020}
}

Comments

6 pages, 4 figures

R2 v1 2026-06-23T14:17:58.808Z