The Bright X-Ray Source in NGC 3413
Autor: | K. S. Dhuga, Eda Sonbas, Ersin Gogus |
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Rok vydání: | 2018 |
Předmět: |
Physics
High Energy Astrophysical Phenomena (astro-ph.HE) 010308 nuclear & particles physics media_common.quotation_subject Astrophysics::High Energy Astrophysical Phenomena X-ray FOS: Physical sciences Astronomy and Astrophysics Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences Luminosity Space and Planetary Science Sky 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics Black-body radiation Astrophysics - High Energy Astrophysical Phenomena 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics media_common Dwarf galaxy |
DOI: | 10.48550/arxiv.1808.06373 |
Popis: | 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 10$^{39}$ erg$s^{-1}$ 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. Comment: Accepted for publication in ApJ |
Databáze: | OpenAIRE |
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