English

The Bright X-Ray Source in NGC 3413

High Energy Astrophysical Phenomena 2018-10-17 v1

Abstract

The emission-line dwarf galaxy NGC 3413 is known to host a bright X-ray source near its optical center. The 0.3-10 keV luminosity of this source is estimated to be approximately 1039^{39} ergs1s^{-1} potentially qualifying it as an ultra-luminous X-ray (ULX) source. A recent XMM-Newton observation suggests that the source is not point-like, and instead, is more likely a composite of point-like sources with extended and/or diffuse emission. The spectral and temporal features of the bright region are similar to those associated with the so-called broadened disk state of ULXs. Based on a multi-color blackbody spectral fit, we estimate the mass of the bright source to be in the range 3 - 20M_{\odot}. Potential optical counterparts are also explored with the aid of available SDSS and PanStars data.

Keywords

Cite

@article{arxiv.1808.06373,
  title  = {The Bright X-Ray Source in NGC 3413},
  author = {E. Sonbas and K. S. Dhuga and E. Göğüş},
  journal= {arXiv preprint arXiv:1808.06373},
  year   = {2018}
}

Comments

Accepted for publication in ApJ

R2 v1 2026-06-23T03:38:08.755Z